JP3435509B2 - Seismometer installation device and installation method of seismometer installation device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention enables simultaneous recording of seismic waves propagated from the epicenter using existing wells at the same time for different geological features and different depths in a geological section at a seismometer installed well. , It is related to the seismograph installation device and the installation method of the seismograph installation device by utilizing existing wells, which enables more economical and effective earthquake elucidation.

[0002]

2. Description of the Related Art A seismograph located at an appropriate position in the middle of a well casing is used, in addition to the large amount of economic investment and the long time required to complete a new seismograph installation well with conventional seismograph installation wells. The geomagnetic compass stored inside is
It is covered with a non-magnetic material (SVS316 stainless steel, etc.) whose direction can be determined in a magnetic field of 4 m or more without magnetic interference, and technology that can be installed within a seismometer installation inclination angle of 3 °. , Vertical motion observation technology was not yet developed.

[0003]

The problems described in the prior art have the following problems. In the seismic wave recording method described above, one seismometer is installed for each well with one seismograph. It was also an urgent need to conclude the elucidation of earthquake development technology by developing a method that could be conducted through numerous comparative studies. To the above request, Japanese Patent Application 2000-133 previously applied
918, title of the invention-rather than "multi-stage seismograph installation device", it is the current situation that many idle wells are currently left unattended. That is, it is a new invention of a seismograph installation device and a seismograph multiple installation device using an existing well, which can economically and shorten the earthquake development technology by utilizing the existing well.

The present invention has been made in view of the above problems of the prior art, and an object of the present invention is to provide the following things. At present, in the seismic observation in the ground, two horizontal components of the seismic motion (orthogonal) (hereinafter referred to as horizontal motions) and vertical (vertical) components (hereinafter referred to as vertical motions) are continuously observed. One seismometer is installed per well. In order to elucidate the seismic behavior of the strata, seismic seismic observations at different depths are required for efficient technological development. If multiple seismographs are invented at different depths in the seismic well, the economic effect will be extremely high. In other words, it is possible to utilize existing wells and install multiple seismographs at appropriate positions, and further effective technological development can be expected. The following conditions must be met in order to accurately and accurately record and record horizontal and vertical motions caused by an earthquake when installing a seismograph.

A. The geomagnetic compass stored in the seismometer is covered with a non-magnetic material (SVS316 stainless steel, etc.) whose orientation can be determined by a magnetic field of 4 m or more without magnetic interference. Furthermore, the seismometer should be installed within an inclination angle of 3 °. B. The horizontal motion of the seismic motion transmitted to the seismograph in the well vertically buried in the ground is a pendulum-like instrument built in the upper part of the seismograph, which is close to the lateral body. Transmission and reception is performed by the body, and vertical vibrations are transmitted and received from the bottom part of the seismograph because an instrument for expanding and recording vertical vibrations is built-in at the bottom of the seismograph. Accurate observation records of earthquake ground motions can be made. C. The well casing vertically buried in the ground crosses the well casing perpendicularly to the stratum, so that the horizontal vibration that is transmitted by each layer is transmitted straight. The contact plate at the tip of the horizontal motion transmission arm is brought into contact with the inner wall of the casing, and the horizontal motion of the stratum propagation is transmitted and recorded to the seismograph stored in the non-magnetic casing part.

D. Since vertical motions are transmitted as vertical motions in the formation parallel to the well casing vertically embedded in the formation, vertical motions must be cross-transmitted to the well casing in order to be recorded by the seismograph. Therefore, when the vertical vibration transmission blade attached to the pedestal is pushed out and expanded by the 4-point frame type jack section and the 4-point bevel gear type jack section, the blade breaks through the well casing and pierces the stratum at that location. At the same time, it spreads out like a bird's wings attached to the well casing body. When the cement-filled and solidified portion is formed in this portion, vertical vibrations that propagate in parallel in the stratum outside the well casing are blocked by the vertical vibration transmission blade and the casing cement filling hole to facilitate vertical vibration reception.

E. Prefabricated wells are made up of well casing inserts of various sizes and depths. Of the multiple seismometers installed according to the situation of the well casing, the upper seismometer is a vertical motion transmission arm pedestal, and a non-magnetic pipe seismometer housing cylinder that houses the seismometer is attached to the vertical motion transmission arm in a band. Tighten the cylinder with metal fittings, and place the slope of the arm tip that projects from the cylinder on the vertical motion transmission arm base. As a result, the upper seismometer easily receives the vertical motions outside the well casing by the vertical motion transmission blades of the pedestal extended to the stratum outside the well casing, and receives the vertical motions on the inner wall of the well casing. The vibration transmission arm base and the vertical motion transmission arm transmit the vibration to the bottom of the seismograph stored in the non-magnetic case, and the vertical motion is observed and recorded by the seismometer from there. In addition, the lower seismograph is placed when the bottom of the seismograph storage cylinder made of non-magnetic pipe at the bottom of the well casing hole and the bottom of the seismograph stored are closely attached to the vertical motion transmission ground. Record the vertical motions on the total. In addition, when the seismograph installation inclination is within 3 ° in two appropriate places on the lower seismograph storage cylinder, the horizontal motion transmission arm is tightened and fixed by the band-shaped mounting bracket, and the arm tip is brought into contact with the inner wall of the well. The horizontal motions transmitted to the casing are transmitted by the arm and recorded by the lower seismograph.

[0008]

In order to achieve the above object, the present invention is as follows. Claim 1
The invention described in the above is composed of a first boring rod 2 and a lower seismograph storage cylinder portion 3, The first boring rod 2 is
It consists of a boring rod body 2A and a connection coupling 2B attached to the lower end of the boring rod body,
A left screw 2B is provided on the lower outer peripheral surface of the connection coupling 2B.
1 is engraved, B. The lower seismograph storage cylinder part 3 includes a non-magnetic foundation cylinder 3A for accommodating the lower seismograph q, and a cementless non-magnetic foundation lower cylinder 3B connected to a lower part of the non-magnetism basic cylinder 3A.
, A trumpet mouth 3C continuously provided on the upper end of the non-magnet base cylinder 3A, a left screw 3D engraved on the inner peripheral surface of the upper end of the non-magnet base cylinder, and an outer circumference of the non-magnet base cylinder 3A. The horizontal motion transmission arm 3E for the lower seismometer and the non-magnetic foundation lower cylinder 3B, which are mounted in a horizontal state at a horizontal motion record position slightly above the lower seismograph housed in the non-magnetic foundation cylinder, on the surface. It is composed of a vertical motion transmission arm 3F for the lower seismograph mounted horizontally on the outer peripheral surface of the connection with the magnetless foundation cylinder 3A connected to the upper part, and a horizontal motion transmission arm 3E for the lower seismometer and a lower seismometer. A contact plate that comes into contact with the inner wall of the well casing is attached to the tip of the vertical movement transmission arm 3F for the vehicle. The first boring rod 2 and the magnetless basic cylinder 3A are
It is characterized in that they are connected by a left-handed screw connection using the left-handed screw 2B1 and the left-handed screw 3D of each other.

[0009] According to a second aspect of the invention, originating in claim 1, wherein
Characterized by being composed of the following steps using light
It is what First step The bottom of the existing well is flattened. Second step The lower seismograph storage cylinder part 3, which is connected to the lower end of the first boring rod 2 by a left-hand screw connection, is lowered to the bottom of the well hole of the well casing 1 and installed. The lower seismograph q in which the wire W for suspension is connected to the head of the third step is lowered while being guided from the ground by the trumpet mouth 3C, and the lower part of the non-magnet foundation lower cylinder 3B connected to the non-magnet foundation cylinder 3A. Install on top of filled cement.

The third aspect of the present invention comprises a second boring rod 4, a first casing breakthrough portion 5, a vertical motion vibration transmission arm base 6, a concrete press-fitting portion 7, and an upper seismograph portion 8, ． The second boring rod 4 is composed of a boring rod body 4A and a jack connector 4B attached to the lower end of the boring rod body. The first casing break-through portion 5 includes a 4-point frame type jack portion 5A, a first blade fall-out prevention frame 5B attached to the 4-point frame type jack portion, and a casing punching blade 5C attached to the first blade fall-out prevention frame. And a vertical motion vibration transmission blade 5D. The vertical motion transmission arm pedestal 6 is formed on the inner peripheral surface of the pedestal body 6A, and a pedestal main body 6A having a flat circular ring shape with a plate having a predetermined width and having a diameter such that it is in contact with the inner peripheral surface of the well casing 1. The mounting slope 6B, the casing drilling blades 5C located at the front, rear, left and right of the pedestal body 6A and the concrete filling holes 6C opened so that the vertical vibration transmission blades 5D can penetrate therethrough. The concrete press fitting part 7 is the third boring rod 7
Connecting block 7B detachably connected to the lower end of A
And a compression-fitting cement leakage prevention rubber packing 7C welded to the outer periphery of the connecting block, and these are connected to the third boring rod 7A by a cement filling vertical passage 7C1 and a cement filling vertical passage. A cement filling passage 7C2 is opened horizontally from the lower end in the front-rear and left-right directions centering on the vertical passage. The upper seismograph section 8 includes an upper seismograph 8A and a horizontal motion transmission arm 8 for the upper seismometer that contacts the inner wall of the well casing.
Features and B, that is composed of an upper seismograph for vertically moving the transfer arm 8C for locking the vertical movement vibration transmission arm pedestal
It is what

[0011] The invention of claim 4, wherein the origination of claim 3, wherein
Characterized by being composed of the following steps using light
It is what In the first step and the second boring rod 4, the first casing breakthrough portion 5 and the vertical vibration transmission arm base 6 are lowered and stopped at appropriate positions in the well casing 1. Second step: The first casing break-through portion 5 is operated from above the ground, and the casing drilling blade 5C and the vertical motion transmission blade 5D break through the well casing 1 to form a channel 1A for filling cement, and further a stratum 10 in the vicinity thereof. To form casing cement filling hole 10A. Third step From the ground, the first casing break-through portion 5 is operated to retract only the casing punching blade 5C to form the filled cement passage 1A in the well casing 1, and the vertical vibration transmission blade 5D is pierced. It is left with the vertical motion transmission arm base 6. Fourth step Concrete press-fitting section 7 is used to fill cement 11 with casing cement filling hole 1 through passage 1A for cement.
Fill to 0A. The upper seismograph 8A in the fifth process upper seismograph section 8 is installed on the pedestal 6 part of the vertical motion vibration transmission arm.

The invention according to claim 5 is composed of a second boring rod 4, a second casing breakthrough portion 9, a vertical motion vibration transmission arm base 6, a concrete press-fitting portion 7, and an upper seismograph portion 8, A. The second boring rod 4 is composed of a boring rod body 4A and a jack connector 4B attached to the lower end of the boring rod body. The second casing break-through portion 9 includes a four-point bevel gear type jack portion 9A, a second blade fall-out prevention frame 9B attached to the four-point bevel gear type jack portion, and a casing punching blade attached to the second blade fall-out prevention frame 9B. 9C and a vertical motion transmission blade 9D. The vertical motion transmission arm pedestal 6 is formed on the inner peripheral surface of the pedestal body 6A, and a pedestal main body 6A having a flat circular ring shape with a plate having a predetermined width and having a diameter such that it is in contact with the inner peripheral surface of the well casing 1. The mounting slope 6B, the casing drilling blades 9C located at the front, rear, left and right of the pedestal body 6A and the concrete filling holes 6C opened so that the vertical vibration transmission blades 9D can penetrate therethrough. The concrete press fitting part 7 is the third boring rod 7
Connecting block 7B detachably connected to the lower end of A
And a press-fitting cement leakage-preventing rubber packing 7C welded to the outer periphery of the connecting block.
A vertical channel 7C1 for cement filling, which communicates with the boring rod 7A, and a vertical channel 7C2 for cement filling are opened horizontally from the lower end of the vertical channel for cement filling in the front-rear and left-right directions centering on the vertical channel. The upper seismograph section 8 includes an upper seismograph 8A and a horizontal motion transmission arm 8 for the upper seismometer that contacts the inner wall of the well casing.
Features and B, that is composed of an upper seismograph for vertically moving the transfer arm 8C for locking the vertical movement vibration transmission arm pedestal
It is what

[0013] According to a sixth aspect of the invention, originating in claim 5, wherein
Characterized by being composed of the following steps using light
It is what In the first step and the second boring rod 4, the second casing breakthrough portion 9 and the vertical vibration transmission arm base 6 are lowered and stopped at appropriate positions in the well casing 1. Second step By operating the second casing breakthrough 9 from the ground,
The casing drilling blade 9C and the vertical vibration transmission blade 9D are advanced to break through the well casing 1 and the passage 1 for the filling cement.
A is formed, and the formation 10 in the vicinity is also stabbed to form a casing cement filling hole 10A. Third step By operating the second casing breakthrough 9 from the ground,
Only the casing drilling blade 9C is retracted to form the channel 1A for filling cement in the well casing 1, and the vertical vibration transmission blade 9D is left in the pierced state together with the vertical vibration transmission arm pedestal 6. Fourth step Concrete press-fitting section 7 is used to fill cement 11 with casing cement filling hole 1 through passage 1A for cement.
Fill to 0A. The upper seismograph 8A in the fifth process upper seismograph section 8 is installed on the pedestal 6 part of the vertical motion vibration transmission arm.

[0014] According to a seventh aspect, the calling of claim 1, wherein
And the following steps using the invention of claim 3 are included . First step The bottom of the existing well is flattened. Second step The lower seismograph storage cylinder part 3, which is connected to the lower end of the first boring rod 2 by a left-hand screw connection, is lowered to the bottom of the well hole of the well casing 1 and installed. Third step By the second boring rod 4, the first casing breakthrough portion 5 and the vertical motion transmission arm base 6 are lowered and stopped at appropriate positions in the well casing 1. Fourth step: The first casing breakthrough portion 5 is operated from above the ground to break through the well casing 1 with the casing drilling blade 5C and the vertical vibration transmission blade 5D to form the filling cement passage 1A,
Further, the formation 10 in the vicinity thereof is also pierced to form a casing cement filling hole 10A. Fifth step From the ground, the first casing break-through portion 5 is operated to retract only the casing punching blade 5C to form the channel 1A for the filled cement in the well casing 1, and the vertical vibration transmission blade 5D is vertically pierced. Vibration transmission arm base 6
To remain with. Sixth step Concrete press-fitting section 7 is used for filling cement with a cement cement filling hole 10A through a cement cement passage 1A.
To fill. The wire W for suspension is connected to the uppermost part of the 7th process upper seismograph 8A,
When the bottom part of the upper seismograph 8A and the lower seismograph q are connected by a suspending wire W having a predetermined length, and the lower seismograph q is lowered from the ground into the well casing 1,
Lowers while guiding with the trumpet mouth 3C, installs the lower seismometer on the upper surface of the filling cement in the magnetless foundation lower cylinder 3B connected to the magnetless foundation cylinder 3A, and then descends the upper seismometer The upper seismograph 8A in the section 8 is installed on the pedestal 6 of the vertical motion transmission arm.

[0015] The invention according to claim 8, the outgoing of claim 1, wherein
And Akira, is characterized in that it is composed of the steps below with the invention of claim 5, wherein. First step The bottom of the existing well is flattened. Second step The lower seismograph storage cylinder part 3, which is connected to the lower end of the first boring rod 2 by a left-hand screw connection, is lowered to the bottom of the well hole of the well casing 1 and installed. In the third step, the second boring rod 4, the second casing breakthrough 9 and the vertical vibration transmission arm pedestal 6 are connected to the well casing 1.
Stop descending to the proper position in. Fourth step By operating the second casing breakthrough 9 from the ground,
The casing drilling blade 9C and the vertical vibration transmission blade 9D are advanced to break through the well casing 1 and also penetrate the formation 10 in the vicinity thereof to form a casing cement filling hole 10A. Fifth step By operating the second casing breakthrough 9 from the ground,
Only the casing drilling blade 9C is retracted to form the channel 1A for the filling cement in the well casing 1, and the vertical vibration transmission blade 9D is left in the pierced state together with the vertical vibration transmission arm pedestal 6. Sixth step Concrete press-fitting section 7 is used for filling cement with a cement cement filling hole 10A through a cement cement passage 1A.
To fill. The wire W for suspension is connected to the uppermost part of the 7th process upper seismograph 8A,
When the bottom part of the upper seismograph 8A and the lower seismograph q are connected by a suspending wire W having a predetermined length, and the lower seismograph q is lowered from the ground into the well casing 1,
Lowers while guiding with the trumpet mouth 3C, installs the lower seismometer on the upper surface of the filling cement in the magnetless foundation lower cylinder 3B connected to the magnetless foundation cylinder 3A, and then descends the upper seismometer The upper seismograph 8A in the section 8 is installed on the pedestal 6 of the vertical motion transmission arm.

[0016]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will now be described based on examples with reference to the drawings. The first invention relates to a seismograph installation device suitable for installing a seismograph at the bottom of an existing well. 1 is a well casing in which the seismograph is installed. B is the seismograph installation device of the first invention, which is composed of the first boring rod 2 and the lower seismograph storage cylinder 3. A. The first boring rod 2 is composed of a boring rod body 2A and a connection coupling 2B attached to the lower end of the boring rod body, and a left screw 2B1 is engraved on the lower outer peripheral surface of the connection coupling 2B.

B. The lower seismograph storage cylinder portion 3 includes a non-magnet base cylinder 3A for storing the lower seismograph q and the non-magnet base cylinder 3
A non-magnetic base lower cylinder 3B filled with cement, which is connected to the lower portion of A, a trumpet port 3C continuously connected to the upper end of the non-magnetic base cylinder 3A, and an upper end of the non-magnetic base cylinder. The left screw 3D engraved on the peripheral surface and the outer peripheral surface of the non-magnet base cylinder 3A are mounted horizontally with the horizontal motion record position slightly above the lower seismograph housed in the non-magnet base cylinder. Horizontal motion transmission arm 3E for the lower seismometer and seismograph storage cylinder 3A connected to the upper part of the magnetless foundation lower cylinder 3B
It is composed of a vertical motion transmission arm 3F for the lower seismograph mounted horizontally on the outer peripheral surface of the connection part with. a. The horizontal seismograph transmission arm 3E for the lower seismometer includes a band-shaped mounting bracket 3E1 for the non-magnet base cylinder 3A, an arm body 3E2 extending in four directions from the band-shaped mounting bracket, and a well casing mounted at the tip of the arm body. It is composed of a contact plate 3E3 that contacts the inner wall of 1. b. The vertical motion transmission arm 3F for the lower seismograph includes a band-shaped mounting bracket 3F1 for the non-magnet base cylinder 3A, an arm body 3F2 extending in four directions from the band-shaped mounting bracket, and a well casing mounted at the tip of the arm body. The contact plate 3F3 is in contact with the inner wall of the. C. The first boring rod 2 and the magnetless basic cylinder 3A are
The left screw 2B1 and the left screw 3D are connected to each other by a left screw connection.

The second invention relates to a method of installing a seismograph installation device using the seismograph installation device a of the first invention. First step The bottom of the existing well is flattened. Second step The lower seismograph storage cylinder part 3, which is connected to the lower end of the first boring rod 2 by a left-hand screw connection, is lowered to the bottom of the well hole of the well casing 1 and installed. (See Figures 1 and 2)
Turn the first boring rod to the right to disconnect the left screw connection part, lift the first boring rod to the ground, and install the lower seismograph storage cylinder part 3 at the bottom of the existing well hole. The lower seismograph q in which the wire W for suspension is connected to the head of the third step is lowered while being guided from the ground by the trumpet mouth 3C, and the lower part of the non-magnet foundation lower cylinder 3B connected to the non-magnet foundation cylinder 3A. Install on top of filled cement. (See FIGS. 3 and 4) In this case, the lower cap tire cord W3 is attached to the hanging wire W.
Are attached, and both are fixed with a fastening tape T.

In order to accurately record the seismic wave propagating from the epicenter in the lower seismograph q stored in the lower seismograph storage cylinder 3, the head of the lower seismometer and the bottom of the lower seismometer should be at least 4 m above and below. Without the non-magnetic band, the lower seismograph storage cylinder part 3
Accurate seismic motion cannot be transmitted to the lower seismograph q stored in. The bottom part of the lower seismograph is placed on the top surface of the filling cement of the magnetless base lower cylinder 3B which is the base part of the lower seismograph storage cylinder part 3. The seismic motion is transmitted to the vertical seismic needle installed at the bottom of the lower seismograph placed in the magnetless foundation cylinder 3A, and at the same time, the installation angle of inclination of the lower seismograph stored in the lower seismograph storage cylinder 3 is transmitted. The vertical motion transmission arm 3F for the lower seismograph is connected to keep the angle within 3 °. Since the contact plate 3E3 of the horizontal motion transmission arm 3E for the lower seismometer and the contact plate 3F3 of the vertical motion transmission arm 3F for the lower seismometer are inscribed on the inner surface of the well casing 1, the magnetless foundation cylinder 3A and the magnetless foundation lower cylinder 3B will be installed in the center of the bottom of the well hole.

A third aspect of the present invention relates to a seismograph installation device suitable for installing a seismograph at an appropriate position of a well casing in an existing well. 1 is a well casing in which the seismograph is installed. B is the seismometer installation device of the third invention,
The second boring rod 4, the first casing breakthrough portion 5,
Vertical motion transmission arm base 6 and concrete press fitting part 7
And the upper seismograph section 8. A. The second boring rod 4 is composed of a boring rod body 4A and a jack connector 4B attached to the lower end of the boring rod body.

B. The first casing breakthrough portion 5 includes a four-point frame type jack portion 5A, a first blade fall-out prevention frame 5B,
It is composed of a casing punching blade 5C and a vertical vibration transmission blade 5D. a. In the 4-point frame type jack section 5A, the connection head 5A11 fixed to the upper end is attached to the jack connector 4B by the horizontal pin P.
Jacking vertical screw 5A1 connected with the above, and upper fulcrum block 5 attached above and below the jacking vertical screw 5
A2, lower fulcrum block 5A3, and upper fulcrum block 5
Between the A2 and the lower fulcrum block 5A3, the front and rear expansion / contraction legs 5A4 and the left / right expansion / contraction legs 5A5 are provided in a substantially cross shape in a plane with the jack operation vertical screw as a center. a1. The front and rear expansion / contraction legs 5A4 have upper links 5A41 whose upper ends are connected to upper fulcrum blocks 5A2 by horizontal horizontal pins P, and lower links whose lower ends are connected to lower fulcrum blocks 5A3 by horizontal horizontal pins P. 5A42,
It is composed of a cross board 5A43 in which the lower end of the upper link 5A41 and the upper end of the lower link 5A42 are connected by a pin P in the left-right direction. a2. The left and right expansion / contraction legs 5A5 have an upper link 5A51 whose upper end is connected to an upper fulcrum block 5A2 by a horizontal pin P in the front-rear direction, and a lower link whose lower end is connected to a lower fulcrum block 5A3 by a horizontal pin P in the front-rear direction. 5A52,
It is composed of a cross board 5A53 in which the lower end of the upper link 5A51 and the upper end of the lower link 5A52 are connected by a pin P in the front-rear direction. a3. As a result, when the second boring rod 4 is rotated, the jack operation vertical screw 5A1 rotates, and the lower fulcrum block 5A3 that moves up and down in response to this rotation causes the front and rear expansion and contraction legs 5A4 and the left and right expansion and contraction legs 5A5 to move horizontally. Direction (toward the inner wall of the well casing).

B. The first blade falling prevention frame 5B is a front rectangular prevention frame 5B1 provided outward on the outer surfaces of the crossing boards 5A43, 5A53 located in the front, rear, left and right, and a vertical partition provided in the center of the prevention frame. It is composed of a receiving frame 5B3 for punching blades and a receiving frame 5B4 for transmission blades, which are partitioned by a plate 5B2. c. The casing punching blade 5C is composed of a prismatic body 5C1 whose inner end portion can be mounted in the punching blade receiving frame 5B3 and a blade portion 5C11 formed at the tip of this prismatic body, and the inner end portion of which is the drilling blade receiving frame. Is connected to the vertical partition plate 5B2 and the prevention frame 5B1 which are formed by the horizontal pin P. d. The vertical motion transmission blade 5D is composed of a prismatic body 5D1 whose inner end portion can be mounted in the transmission blade receiving frame 5B4, and a blade portion 5D11 formed at the tip of this prismatic body. A horizontal pin P, which is planted outward, is connected to the end face of a cross plate 5A53 which is the bottom of the transmission blade receiving frame 5B4. Therefore, when this vertical vibration transmission blade 5D is contracted, it falls out of the transmission blade receiving frame 5B4,
It will remain on the side of the pedestal 6 for vertical vibration transmission arm, which will be described later.

C. The vertical motion transmission arm pedestal 6 is formed on the inner peripheral surface of the pedestal body 6A, and a pedestal main body 6A having a flat circular ring shape with a plate having a predetermined width and having a diameter such that it is in contact with the inner peripheral surface of the well casing 1. Mounting slope 6B and casing drilling blades 5C located at the front, rear, left and right of the base body 6A
And a concrete filling hole 6C opened so that the vertical vibration transmission blade 5D can penetrate. D. The concrete press fitting part 7 is the third boring rod 7
Connecting block 7B detachably connected to the lower end of A
And a press-fitting cement leak-preventing rubber packing 7C welded to the outer periphery of the connecting block, and the press-fitting cement leak-preventing rubber packing is formed in a substantially frustoconical shape that can be attached to and detached from the vertical motion vibration transmission arm base 6 from above. At the same time, the connecting block and the press-fitting cement leakage preventing rubber packing 7C are provided with a vertical channel 7C1 for cement filling which communicates with the third boring rod 7A, and the vertical channel from the lower end of the vertical channel for cement filling to the vertical channel. A cement filling passage 7C2 is opened horizontally in the front-rear and left-right directions.

E. The upper seismograph section 8 is an upper seismograph 8A.
And a horizontal motion transmission arm 8B for the upper seismograph and a vertical motion transmission arm 8C for the upper seismograph. a. The horizontal motion transmission arm 8B for the upper seismometer includes a band-shaped mounting bracket 8B1 for the upper seismograph 8A, an arm body 8B2 extending in four directions from the band-shaped mounting bracket, and a well casing 1 mounted at the tip of the arm body. It is composed of a contact plate 8B3 that contacts the inner wall of the. b. The vertical motion transmission arm 8C for the upper seismograph includes a band-shaped mounting bracket 8C1 for the upper seismograph 8A, an arm body 8C2 extending in four directions from the band-shaped mounting bracket, and a vertical motion vibration provided at the tip of the arm body. The transmission arm pedestal 6 includes a slope 8C21 which is engaged with the mounting slope 6B from above.

A fourth invention relates to a method of installing a seismograph installation device using the seismograph installation device b of the third invention. In the first step and the second boring rod 4, the first casing breakthrough portion 5 and the vertical vibration transmission arm base 6 are lowered and stopped at appropriate positions in the well casing 1. In this case, the vertical motion transmission arm base 6 is locked in the concrete filling hole 6C in the vertical motion transmission arm base by the casing drilling blade 5C and the vertical motion transmission blade 5D tip in the first casing breakthrough 5. Supported by the state. Second step By rotating the second boring rod 4 to the right on the ground and expanding the front and rear expansion and contraction legs 5A4 and the left and right expansion and contraction legs 5A5, by the casing drilling blade 5C and the vertical motion transmission blade 5D,
The well casing 1 is pierced to form a channel 1A for filling cement, and the formation 10 in the vicinity thereof is also pierced to form a casing cement filling hole 10A. Third step By rotating the second boring rod 4 counterclockwise on the ground to reduce the front and rear expansion legs 5A4 and the left and right expansion legs 5A5, only the casing drilling blade 5C is retracted and the well casing 1 is filled with a cement cement passage 1A. And the vertical vibration transmission blade 5D is left in the pierced state together with the vertical vibration transmission arm pedestal 6. After this, the second boring rod 4 and the first casing breakthrough 5 are lifted to the ground.

Fourth step: Using the concrete press-fitting section 7, the cement 11 is filled through the cement cement passage 1A.
Fill to 0A. That is, the vertical passage 7C2 for cement filling of the press-fitting cement leakage prevention rubber packing 7C is matched with the concrete filling hole 6C of the vertical vibration transmission arm pedestal 6 by the third boring rod 7A lowered from the ground, and the casing cement filling hole 10A. To fill.
Then, the concrete press-fitting part 7 is lifted to the ground. The upper seismograph 8A in the fifth process upper seismograph section 8 is installed on the pedestal 6 part of the vertical motion vibration transmission arm. That is, the upper seismograph 8A is lowered from the ground by the hanging wire W, the slope 8C21 of the upper seismometer vertical motion transmission arm 8C is brought into contact with the mounting slope 6B of the vertical seismic motion transmission arm base 6, and the upper part The horizontal motion transmission arm 8B for the seismometer is brought into contact with the inner wall of the well casing 1. In this case, the hanging wire W
An upper cap tire cord W2 is attached to the above, and both are fixed with a tightening tape T.

The fifth aspect of the present invention relates to a seismograph installation device suitable for installing a seismograph at an appropriate position of a well casing in an existing well. 1 is a well casing in which the seismograph is installed. Ha is the seismograph installation device of the fifth invention,
Second boring rod 4 and second casing breakthrough 9
And a vertical motion transmission arm pedestal 6, a concrete press-fitting section 7, and an upper seismograph section 8. A. The second boring rod 4 is composed of a boring rod body 4A and a jack connector 4B attached to the lower end of the boring rod body.

B. The second casing breakthrough portion 9 includes a four-point bevel gear type jack portion 9A, a second blade falling-off prevention frame 9B, a casing hole punching blade 9C, and a vertical vibration transmission blade 9D. a. The 4-point bevel gear type jack portion 9A is a gear box 9A rotatably attached to the lower end of the jack connector 4B.
1, a guide 9A2 horizontally attached to the front, rear, left and right surfaces of the gear box, a parent bevel gear 9A3 downwardly connected to the lower end of the jack connector 4B, and front, rear, left and right positions around the parent bevel gear 9A3. Bevel gear 9A1 meshed with
1, 9A11 ,. ． And these front, rear, left and right bevel gears 9A
11, 9A11 ,. ． The screw rods 9A12, 9A12 ,. ． And the retractable cylinders 9A13, 9A13 ,. ． The advancing / retreating cylinder is configured to advance / retreat by the rotation of the screw rod. b. The second blade falling-off prevention frame 9B is a front rectangular prevention frame 9B1 provided outwardly on the outer surface of each of the advancing / retreating cylinders 9A13 located at the front, rear, left and right, and a vertical partition plate provided at the center of the prevention frame. A receiving frame 9B3 for a drilling blade partitioned by 9B2,
It is composed of a transmission blade receiving frame 9B4. c. The casing punching blade 9C is composed of a prismatic body 9C1 whose inner end portion can be mounted in the drilling blade receiving frame 9B3, and a blade portion 9C11 formed at the tip of the prismatic body, the inner end portion of which is the drilling blade receiving frame. Is connected to the vertical partition plate 9B2 and the prevention frame 9B1 which are formed by the horizontal pin P. d. The vertical motion transmission blade 9D is composed of a prismatic body 9D1 whose inner end portion can be mounted in the transmission blade receiving frame 9B4, and a blade portion 9D11 formed at the tip of this prismatic body. On the end face, a horizontal pin P is planted outward on the outer wall of the advancing / retreating cylinder 9A13 which is the bottom of the transmission blade receiving frame 9B4.
Are pierced and connected. Therefore, when the vertical vibration transmission blade 9D is pulled outward, the transmission blade receiving frame 9B is formed.
It comes off from No. 4 and remains on the side of the vertical vibration transmission arm base 6 which will be described later.

C. The vertical motion transmission arm base 6 is shown in FIG.
1, a flat ring-shaped pedestal body 6A having a diameter of a plate having a predetermined width and in contact with the inner circumferential surface of the well casing 1, and a mounting body formed on the inner circumferential surface of the pedestal body 6A It is composed of a slope 6B, a casing perforating blade 9C located on the front, rear, left and right of the pedestal body 6A and a concrete filling hole 6C opened so that the vertical vibration transmission blade 9D can penetrate. D. Referring to FIGS. 14 and 15, the concrete press-fitting portion 7 includes a connecting block 7B detachably connected to the lower end of the third boring rod 7A, and a press-fitting cement leak prevention rubber welded to the outer periphery of the connecting block. Packing 7
Made of C, the press-fit cement leakage prevention rubber packing is
The vertical motion vibration transmission arm pedestal 6 is configured to have a substantially truncated cone shape that can be attached and detached from above, and the coupling block and the press-fitting cement leakage prevention rubber packing 7C are for cement filling that communicates with the third boring rod 7A. Vertical passage 7C
1, and a vertical channel 7C2 for cement filling is provided horizontally from the lower end of the vertical channel for cement filling in the front-rear, left-right directions around the vertical channel.

E. 21 and 22, the upper seismograph section 8 is composed of an upper seismograph 8A, an upper seismograph horizontal motion transmission arm 8B, and an upper seismometer vertical motion transmission arm 8C. a. The horizontal motion transmission arm 8B for the upper seismometer includes a band-shaped mounting bracket 8B1 for the upper seismograph 8A, an arm body 8B2 extending in four directions from the band-shaped mounting bracket, and a well casing 1 mounted at the tip of the arm body. It is composed of a contact plate 8B3 that contacts the inner wall of the. b. The vertical motion transmission arm 8C for the upper seismograph includes a band-shaped mounting bracket 8C1 for the upper seismograph 8A, an arm body 8C2 extending in four directions from the band-shaped mounting bracket, and a vertical motion vibration provided at the tip of the arm body. The transmission arm pedestal 6 includes a slope 8C21 which is engaged with the mounting slope 6B from above.

The sixth invention relates to a method of installing a seismograph installation device using the seismograph installation device C of the fifth invention. In the first step and the second boring rod 4, the second casing breakthrough portion 9 and the vertical vibration transmission arm base 6 are lowered and stopped at appropriate positions in the well casing 1. In this case, the vertical motion transmission arm pedestal 6 is locked in the concrete filling hole 6C in the vertical motion transmission arm pedestal by the casing drilling blade 9C and the vertical motion transmission blade 9D in the second casing breakthrough portion 9. Supported by the state. Second step By rotating the second casing breakthrough portion 9 to the right on the ground and rotating the parent bevel gear, the bevel gear, and the screw rod, the forward / backward movement cylinder 9A1
3. The casing drilling blade 9C and the vertical vibration transmission blade 9D are advanced to break through the well casing 1 to form a channel 1A for filling cement, and also to pierce the formation 10 in the vicinity thereof to form a casing cement filling hole 10A. Third step By rotating the second boring rod 4 counterclockwise on the ground and retracting the advancing / retreating cylinder 9A13 and the second blade drop-out prevention frame 9B, only the casing hole-punching blade 9C is retracted and the well casing 1 is filled with a cement cement passage 1A. And the vertical vibration transmission blade 9D is left in the pierced state together with the vertical vibration transmission arm pedestal 6. Then, the second boring rod 4 and the second casing breakthrough 9 are lifted to the ground.

Fourth Step: Using the concrete press-fitting section 7, the cement 11 is filled through the cement cement passage 1A to the casing cement filling hole 1
Fill to 0A. That is, by using the third boring rod 7A that is lowered from the ground, the vertical channel 7C2 for cement filling of the press-fitting cement leakage prevention rubber packing 7C is matched with the concrete filling hole 6C of the vertical motion transmission arm base 6 and the casing cement filling hole 10A. To fill.
Then, the concrete press-fitting part 7 is lifted to the ground. The upper seismograph 8A in the fifth process upper seismograph section 8 is installed on the pedestal 6 part of the vertical motion vibration transmission arm. That is, the upper seismograph 8A is lowered from the ground by the hanging wire W, the slope 8C21 of the upper seismometer vertical motion transmission arm 8C is brought into contact with the mounting slope 6B of the vertical seismic motion transmission arm base 6, and the upper part The horizontal motion transmission arm 8B for the seismometer is brought into contact with the inner wall of the well casing 1. In this case, the hanging wire W
An upper cap tire cord W2 is attached to the above, and both are fixed with a tightening tape T.

A seventh invention is a method for installing a seismograph installation device comprising the following steps using the seismograph installation device b of the first invention and the seismograph installation device b of the third invention. First step The bottom of the existing well is flattened. Second step The lower seismograph storage cylinder part 3, which is connected to the lower end of the first boring rod 2 by a left-hand screw connection, is lowered to the bottom of the well hole of the well casing 1 and installed. (See Figures 1 and 2)
Turn the first boring rod to the right to disconnect the left screw connection part, lift the first boring rod to the ground, and install the lower seismograph storage cylinder part 3 at the bottom of the existing well hole. Third step By the second boring rod 4, the first casing breakthrough portion 5 and the vertical motion transmission arm base 6 are lowered and stopped at appropriate positions in the well casing 1. In this case, the vertical motion transmission arm base 6 is locked in the concrete filling hole 6C in the vertical motion transmission arm base by the casing drilling blade 5C and the vertical motion transmission blade 5D tip in the first casing breakthrough 5. Supported by the state.

Step 4 Rotate the boring rod 4 to the right on the ground to expand the front and rear expansion legs 5A4 and the left and right expansion legs 5A5, and break through the well casing 1 with the casing drilling blade 5C and the vertical motion transmission blade 5D. A channel 1A for refilling cement is formed, and the formation 10 in the vicinity thereof is also pierced to form a casing cement filling hole 10A. Fifth step By rotating the second boring rod 4 counterclockwise on the ground to reduce the front and rear expansion and contraction legs 5A4 and the left and right expansion and contraction legs 5A5, only the casing punching blade 5C is retracted and the well casing 1 is filled with a cement cement passage 1A. And the vertical vibration transmission blade 5D is left in the pierced state together with the vertical vibration transmission arm pedestal 6. After this, the second boring rod 4 and the first casing breakthrough 5 are lifted to the ground. Sixth step Concrete press-fitting section 7 is used for filling cement with a cement cement filling hole 10A through a cement cement passage 1A.
To fill. That is, by using the third boring rod 7A that is lowered from the ground, the vertical channel 7C2 for cement filling of the press-fitting cement leakage prevention rubber packing 7C is matched with the concrete filling hole 6C of the vertical motion transmission arm base 6 and the casing cement filling hole 10A. To fill. Then, the concrete press-fitting part 7 is lifted to the ground.

The wire W for suspension is connected to the uppermost part of the seventh step upper seismograph 8A,
When the bottom part of the upper seismograph 8A and the lower seismograph q are connected by a suspending wire W having a predetermined length, and the lower seismograph q is lowered from the ground into the well casing 1,
Lowers while guiding with the trumpet mouth 3C, installs the lower seismometer on the upper surface of the filling cement in the magnetless foundation lower cylinder 3B connected to the magnetless foundation cylinder 3A, and then descends the upper seismometer The upper seismograph 8A in the section 8 is installed on the pedestal 6 of the vertical motion transmission arm. That is, the upper seismograph 8A is lowered from the ground by the hanging wire W, the slope 8C21 of the upper seismometer vertical motion transmission arm 8C is brought into contact with the mounting slope 6B of the vertical seismic motion transmission arm base 6, and the upper part The horizontal motion transmission arm 8B for the seismometer is brought into contact with the inner wall of the well casing 1. In this case, an upper cap tire cord W4 and a lower cap tire cord W3 are attached to the hanging wire W, and both are fixed with a tightening tape T.

An eighth invention is a method of installing a seismograph installation device comprising the following steps using the seismograph installation device a of the first invention and the seismograph installation device c of the fifth invention. First step The bottom of the existing well is flattened. Second step The lower seismograph storage cylinder part 3, which is connected to the lower end of the first boring rod 2 by a left-hand screw connection, is lowered to the bottom of the well hole of the well casing 1 and installed. (See Figures 1 and 2)
Turn the first boring rod to the right to disconnect the left screw connection part, lift the first boring rod to the ground, and install the lower seismograph storage cylinder part 3 at the bottom of the existing well hole. In the third step, the second boring rod 4, the second casing breakthrough 9 and the vertical vibration transmission arm pedestal 6 are connected to the well casing 1.
Stop descending to the proper position in. In this case, the vertical motion transmission arm pedestal 6 is locked in the concrete filling hole 6C in the vertical motion transmission arm pedestal by the casing drilling blade 9C and the vertical motion transmission blade 9D in the second casing breakthrough portion 9. Supported by the state.

Fourth Step On the ground, the second casing breakthrough portion 9 is rotated clockwise to rotate the parent bevel gear, the bevel gear, and the screw rod, so that the advancing / retreating cylinder 6D.
3. The casing drilling blade 9C and the vertical vibration transmission blade 9D are advanced to break through the well casing 1 and further penetrate the formation 10 in the vicinity thereof to form a casing cement filling hole 10A. Fifth step By rotating the second boring rod 4 counterclockwise on the ground and retracting the advancing / retreating cylinder 9A13 and the second blade drop-off prevention frame 9B, only the casing punching blade 9C is retracted, and the well casing 1 is filled with a cement passage. 1A is formed,
The vertical motion transmission blade 9D is left in the pierced state together with the vertical motion transmission arm base 6. Then, the second boring rod 4 and the second casing breakthrough 9 are lifted to the ground. Sixth step Concrete press-fitting section 7 is used for filling cement with a cement cement filling hole 10A through a cement cement passage 1A.
To fill. That is, by using the third boring rod 7A that is lowered from the ground, the vertical channel 7C2 for cement filling of the press-fitting cement leakage prevention rubber packing 7C is matched with the concrete filling hole 6C of the vertical motion transmission arm base 6 and the casing cement filling hole 10A. To fill. Then, the concrete press-fitting part 7 is lifted to the ground.

The wire W for suspension is connected to the uppermost part of the upper seismograph 8A in the seventh step,
When the bottom part of the upper seismograph 8A and the lower seismograph q are connected by a suspending wire W having a predetermined length, and the lower seismograph q is lowered from the ground into the well casing 1,
Lowers while guiding with the trumpet mouth 3C, installs the lower seismometer on the upper surface of the filling cement in the magnetless foundation lower cylinder 3B connected to the magnetless foundation cylinder 3A, and then descends the upper seismometer The upper seismograph 8A in the section 8 is installed on the pedestal 6 of the vertical motion transmission arm. That is, the upper seismograph 8A is lowered from the ground by the hanging wire W, the slope 8C21 of the upper seismometer vertical motion transmission arm 8C is brought into contact with the mounting slope 6B of the vertical seismic motion transmission arm base 6, and the upper part The horizontal motion transmission arm 8B for the seismometer is brought into contact with the inner wall of the well casing 1. In this case, an upper cap tire cord W4 and a lower cap tire cord W3 are attached to the hanging wire W, and both are fixed with a tightening tape T.

[0039]

Since the present invention is configured as described above, it has the following effects. 1. Multiple seismographs will be installed by utilizing wells that are left unused as wells, although they are in positions that are absolutely necessary for seismic observation. Simultaneous recording of multiple seismic motions at each depth and in each layer in the well casing can be expected to make a further leap forward with economical earthquake countermeasure technology using unused wells that has never existed before. 2. Since the existing well structure has generally used iron pipes, a non-magnetic pipe is installed at the location where the seismograph installation device is installed. Therefore, the seismograph will be installed in the lower seismograph storage cylinder part with that length within a tilt angle of 3 °. In addition, each of the underground seismic observations carried out continuously
Vertical and vertical motions of the outer layer of the well casing can be received from the bottom of each seismograph, and horizontal motions can be received from the lateral body of each seismograph, enabling accurate and rapid seismic recording. 3. Since the existing wells are made of well casings with various diameters and depths, they are located at appropriate positions in each well casing. Transmission arm, and
The vertical motion transmission arm can be manufactured and processed, and since the seismograph storage cylinder that is the central core can be used as a unified plan product of existing products, the earthquake countermeasure technology with high economic effect is developed. To be done. 4. If a seismometer with multiple seismometers fails, the seismographs with multiple seismometers can be moved up and down at the same time, so they can be inspected and repaired on the ground and then connected and suspended again. In other words, the installation of multiple seismographs utilizing existing wells will lead to vigorous economic and seismic analysis technology development. 5. In addition, it has the effects of being inexpensively manufactured, being easy to assemble due to the small number of parts, and being economical.

[Brief description of drawings]

FIG. 1 is a vertical cross-sectional view illustrating a first invention.

FIG. 2 is a perspective view in which a part centering on a lower seismograph storage cylinder is cut away.

FIG. 3 is a vertical cross-sectional view illustrating a step in the second invention.

FIG. 4 is a vertical cross-sectional view illustrating a step in the second invention.

FIG. 5 is a vertical cross-sectional view illustrating a step in the second invention.

FIG. 6 is a vertical sectional view for explaining a third invention.

FIG. 7 is an enlarged perspective view of a main part centering around a four-point frame jack.

FIG. 8 is an enlarged perspective view of a main part centering on a four-point frame jack.

FIG. 9 is an exploded perspective view in which a part of a four-point frame jack is omitted.

FIG. 10 is an exploded perspective view centering on a casing drilling blade and a vertical vibration transmission blade portion in the above.

FIG. 11 is a perspective view in which a part of a vertical motion transmission arm base is cut away.

FIG. 12 is a vertical sectional view for explaining a fourth invention.

FIG. 13 is a vertical cross-sectional view for explaining the relationship between the four-point frame type jack section and the vertical motion vibration transmission arm base.

FIG. 14 is a perspective view showing a concrete press-fitting portion with a part cut away.

FIG. 15 is an enlarged transverse sectional view of the above.

FIG. 16 is a vertical cross-sectional view illustrating a press-fitted state of concrete.

FIG. 17 is a transverse cross-sectional view for explaining the operation of the casing punching blade and the vertical motion transmission blade.

FIG. 18 is a transverse cross-sectional view for explaining the operation of the casing punching blade and the vertical motion transmission blade.

FIG. 19 is a transverse cross-sectional view illustrating a state where the vertical motion transmission blade remains.

FIG. 20 is a transverse cross-sectional view illustrating a press-fitted state of concrete.

FIG. 21 is an exploded perspective view of an upper seismograph section.

FIG. 22 is an enlarged front view in which a part of the upper seismograph section is cut away.

FIG. 23 is a vertical sectional view for explaining a mounting process of the upper seismograph section.

FIG. 24 is a vertical cross-sectional view for explaining a state where the upper seismograph section is completely attached.

FIG. 25 is a vertical sectional view for explaining the fifth invention.

FIG. 26 is a perspective view of a second casing breakthrough portion.

FIG. 27 is an exploded perspective view centering on the casing punching blade and the vertical motion vibration transmission blade portion in the above.

28 is an enlarged front view with a part cut away in FIG. 27. FIG.

FIG. 29 is an explanatory diagram of an operation in the above.

FIG. 30 is a vertical sectional view illustrating a sixth invention.

FIG. 31 is a vertical cross-sectional view illustrating a relationship between a four-point bevel gear type jack portion and a vertical motion vibration transmission arm base.

FIG. 32 is a vertical cross-sectional view illustrating a press-fitted state of concrete.

FIG. 33 is a cross-sectional view illustrating the operation of the casing punching blade and the vertical motion transmission blade.

FIG. 34 is a cross-sectional view illustrating the operation of the casing punching blade and the vertical motion transmission blade.

FIG. 35 is a cross-sectional view illustrating a state in which the vertical motion transmission blade remains.

FIG. 36 is a transverse cross-sectional view illustrating a press-fitted state of concrete.

FIG. 37 is a vertical cross-sectional view for explaining a state where the upper seismograph section is completely attached.

FIG. 38 is a vertical sectional view for explaining the seventh invention.

FIG. 39 is a vertical sectional view for explaining the eighth invention.

FIG. 40 is an exploded perspective view showing the relationship between the upper seismograph section and the lower seismograph.

FIG. 41 is a vertical sectional view for explaining a mounting process of the upper seismograph section and the lower seismograph.

FIG. 42 is a vertical cross-sectional view illustrating a state where the upper seismograph section and the lower seismograph are completely attached.

[Explanation of symbols]

1 Well casing where seismograph is installed B seismometer installation device of the first invention 2 1st bowling rod 3 Lower seismograph storage cylinder (3) Seismometer installation device of the third invention 4 second boring rod 5 First casing breakthrough 6 Vertical motion transmission arm base 7 Concrete press fitting section 8 Upper seismograph section C. Fifth invention seismometer installation device 9 Second casing breakthrough

─────────────────────────────────────────────────── ─── Continuation of front page (58) Fields surveyed (Int.Cl. ⁷ , DB name) G01V 1/40 G01V 1/20

Claims (8)

(57) [Claims] 1. A first boring rod (2) and a lower seismograph storage cylinder (3), wherein the first boring rod (2) is attached to a boring rod body (2A) and a lower end of the boring rod body. The connecting seismic coupling (2B) is provided with a left screw (2B1) engraved on the lower outer peripheral surface of the connecting coupling (2B). ), A non-magnet base cylinder (3A) and a non-magnet base cylinder (3A)
A) a magnetless base lower cylinder (3B) connected to the lower part of (A), a trumpet mouth (3C) continuously connected to the upper end of the magnetless base cylinder (3A), and A left screw (3D) engraved on the inner peripheral surface of the upper end of the magnet base cylinder,
A horizontal motion transmission arm for a lower seismometer attached to the outer peripheral surface of the magnetless base cylinder (3A) in a horizontal state at a horizontal motion record position slightly above the lower seismograph housed in the magnetless base cylinder ( 3E) and the vertical motion transmission arm (3F) for the lower seismograph horizontally mounted on the outer peripheral surface of the connection portion between the magnetless foundation lower cylinder (3B) and the magnetless foundation cylinder (3A). The horizontal motion transmission arm (3E) for the lower seismograph and the vertical motion transmission arm (3F) for the lower seismograph.
A contact plate that comes into contact with the inner wall of the well casing is attached to the tip of the first boring rod (2) and the non-magnet base cylinder (3A), and the left screw (2B1) and the left screw (3D) are mutually attached. The seismograph installation device, which is connected by the left-hand screw connection used. 2. A method of installing a seismograph installation device, comprising the following steps using the seismograph installation device according to claim 1 . First step The bottom of the existing well is flattened. Second step Lower seismograph storage cylinder part (3) connected to the lower end of the first boring rod (2) by left-hand screw connection, and well casing (1)
Will be installed down to the bottom of the well hole. The lower seismograph (q) in which the hanging wire (W) is connected to the head of the third step is lowered while being guided from the ground by the trumpet mouth (3C), and is connected to the magnetless foundation cylinder (3A). It is installed on the upper surface of the filling cement in the magnetless base lower cylinder (3B). 3. From the second boring rod (4), the first casing breakthrough (5), the vertical motion transmission arm base (6), the concrete press-fitting part (7), and the upper seismograph part (8). The second boring rod (4) is composed of a boring rod body (4A) and a jack connector (4B) attached to the lower end of the boring rod body, and the first casing breakthrough (5) is 4 A point frame type jack part (5A), a first blade drop-off prevention frame (5B) attached to the 4-point frame type jack part, a casing drilling blade (5C) attached to the first blade drop-off prevention frame, and a top and bottom The vertical motion transmission arm base (6) is composed of a motion vibration transmission blade (5D), and has a plate with a predetermined width, and has a diameter of such a degree that it is in contact with the inner peripheral surface of the well casing (1). Book A body (6A), a mounting slope (6B) formed on the inner peripheral surface of the pedestal body (6A),
It consists of a casing drilling blade (5C) located on the front, back, left and right of the pedestal body (6A) and a concrete filling hole (6C) opened so that the vertical vibration transmission blade (5D) can penetrate, and the concrete press fitting part (7) is , A connecting block (7B) removably connected to the lower end of the third boring rod (7A), and a press-fitting cement leakage preventing rubber packing (7C) welded to the outer periphery of the connecting block,
In addition, there is a vertical channel for cement filling (7C1) communicating with the third boring rod (7A), and for cement filling in a horizontal state from the lower end of the vertical channel for cement filling in the front-rear, left-right direction around the vertical channel. The passage (7C2) is opened, and the upper seismograph section (8) transmits the upper seismograph (8A), the horizontal seismometer horizontal motion transmission arm (8B) that contacts the inner wall of the well casing, and the vertical seismic motion transmission. A seismograph installation device comprising an up-and-down motion transmission arm (8C) for an upper seismograph which is locked to an arm pedestal. 4. A method for installing a seismograph installation device, comprising the following steps using the seismograph installation device according to claim 3 . First step The second boring rod (4) lowers and stops the first casing breakthrough (5) and the vertical motion transmission arm base (6) at an appropriate position in the well casing (1). Second step Actuating the first casing breakthrough (5) from the ground, casing drilling blade (5C) and vertical motion transmission blade (5D)
To form a channel (1A) for filling cement by breaking through the well casing (1), and further forming a stratum (10) in the vicinity thereof.
To form a casing cement filling hole (10A). Third step: Actuating the first casing breakthrough (5) from the ground to retract only the casing punching blade (5C) to form the channel (1A) for filling cement in the well casing (1), and to transmit vertical motion vibrations. The blade (5D) is left in the pierced state together with the vertical motion transmission arm base (6). Cement (11) using the fourth step concrete press-fitting section (7)
Is filled into the casing cement filling hole (10A) through the filling cement passage (1A). The upper seismograph (8A) in the fifth process upper seismograph section (8) is installed on the vertical motion transmission arm base (6). 5. A second boring rod (4), a second casing breakthrough (9), a vertical motion transmission arm base (6), a concrete press-fitting part (7), and an upper seismograph part (8). The second boring rod (4) is composed of a boring rod body (4A) and a jack connector (4B) attached to the lower end of the boring rod body, and the second casing breakthrough (9) is 4-point bevel gear type jack (9A) and second attached to 4-point bevel gear type jack
The blade falling prevention frame (9B) and the second blade falling prevention frame (9
It is composed of a casing drilling blade (9C) attached to B) and a vertical vibration transmission blade (9D). The vertical vibration transmission arm pedestal (6) has a plate of a predetermined width and is an inner peripheral surface of the well casing (1). A pedestal body (6A) in the shape of a flat circular ring configured to have a diameter such that the pedestal body is attached to the pedestal body, and a mounting slope (6B) formed on the inner peripheral surface of the pedestal body (6A).
It consists of a casing drilling blade (9C) located on the front, rear, left and right of the pedestal body (6A) and a concrete filling hole (6C) opened so that the vertical vibration transmission blade (9D) can penetrate, and the concrete press fitting part (7) is , A connecting block (7B) removably connected to the lower end of the third boring rod (7A), and a press-fitting cement leakage preventing rubber packing (7C) welded to the outer periphery of the connecting block,
A vertical channel for cement filling (7C1) communicating with the third boring rod (7A), and a vertical channel for cement filling in a horizontal state from the lower end of the vertical channel for cement filling in the front-rear, left-right direction around the vertical channel. The passage (7C2) is opened, and the upper seismograph section (8) includes the upper seismograph (8A), the horizontal seismograph horizontal motion transmission arm (8B) that contacts the inner wall of the well casing, and the vertical seismic vibration transmission arm. A seismograph installation device comprising an up-and-down motion transmission arm (8C) for an upper seismograph which is locked to a pedestal. 6. A method for installing a seismograph installation device, comprising the following steps using the seismograph installation device according to claim 5 . First step The second boring rod (4) lowers and stops the second casing breakthrough (9) and the vertical motion transmission arm base (6) at an appropriate position in the well casing (1). Second step By operating the second casing breaching portion (9) from the ground, the casing piercing blade (9C) and the vertical vibration transmission blade (9D) are moved forward to pierce the well casing (1) and the channel for the filling cement. (1A) is formed, and further the formation (10) in the vicinity thereof is stabbed, and the casing cement filling hole (10
A) is formed. Third step By operating the second casing breakthrough (9) from the ground, only the casing punching blade (9C) is retracted to form the filled cement passage (1A) in the well casing (1), and the vertical shaking motion is also performed. The transmission blade (9D) remains in the pierced state together with the vertical vibration transmission arm base (6). Cement (11) using the fourth step concrete press-fitting section (7)
Is filled into the casing cement filling hole (10A) through the filling cement passage (1A). The upper seismograph (8A) in the fifth process upper seismograph section (8) is installed on the vertical motion transmission arm base (6). 7. The seismograph installation device according to claim 1 and claim.
A method for installing a seismograph installation device, comprising the following steps using the seismograph installation device described in 3 . First step The bottom of the existing well is flattened. Second step Lower seismograph storage cylinder part (3) connected to the lower end of the first boring rod (2) by left-hand screw connection, and well casing (1)
Will be installed down to the bottom of the well hole. Third step The second boring rod (4) lowers and stops the first casing breakthrough (5) and the vertical motion transmission arm base (6) at an appropriate position in the well casing (1). Fourth step: Actuating the first casing breakthrough part (5) from the ground, casing drilling blade (5C) and vertical vibration transmission blade (5D)
To break through the well casing (1) to form a channel (1A) for filling cement, and further pierce the formation (10) in the vicinity thereof to form a casing cement filling hole (10A). Fifth step From the ground, the first casing breakthrough (5) is operated to retract only the casing punching blade (5C) to form the channel (1A) for the filled cement in the well casing (1), and the vertical vibration is transmitted. The blade (5D) is left in the pierced state together with the vertical motion transmission arm base (6). Sixth step Cement is filled into the casing cement filling hole (10A) through the filling cement passage (1A) using the concrete press-fitting section (7). Step 7 Connect the hanging wire (W) to the uppermost part of the upper seismograph (8A), and connect the bottom part of the upper seismograph (8A) and the lower seismograph (q).
Are connected by a suspending wire (W) of a predetermined length, and when lowering the lower seismograph (q) into the well casing (1) from the ground, the lower seismograph (q) is connected to the trumpet mouth (3C).
The lower seismometer is installed on the upper surface of the filling cement in the magnetless foundation lower cylinder (3B) connected to the magnetless foundation cylinder (3A), and then descends the upper seismometer. The upper seismograph (8A) in the section (8) is installed on the vertical motion transmission arm base (6). 8. claims and claim 1 seismometers installation device according
A method for installing a seismograph installation device, comprising the following steps using the seismograph installation device described in 5 . First step The bottom of the existing well is flattened. Second step Lower seismograph storage cylinder part (3) connected to the lower end of the first boring rod (2) by left-hand screw connection, and well casing (1)
Will be installed down to the bottom of the well hole. Third step By the second boring rod (4), the second casing breakthrough part (9) and the vertical motion transmission arm base (6) are lowered and stopped at appropriate positions in the well casing (1). Fourth step By operating the second casing breakthrough portion (9) from the ground, the casing hole punching blade (9C) and the vertical vibration transmission blade (9D) are advanced to break through the well casing (1),
Further, the formation (10) in the vicinity thereof is also pierced to form a casing cement filling hole (10A). Fifth step By operating the second casing breakthrough part (9) from the ground, only the casing punching blade (9C) is retracted to form the filled cement passage (1A) in the well casing (1) and move up and down. The vibration transmission blade (9D) is left in the pierced state together with the vertical vibration transmission arm base (6). Sixth step Cement is filled into the casing cement filling hole (10A) through the filling cement passage (1A) using the concrete press-fitting section (7). Step 7 Connect the hanging wire (W) to the uppermost part of the upper seismograph (8A), and connect the bottom part of the upper seismograph (8A) and the lower seismograph (q).
Are connected by a suspending wire (W) of a predetermined length, and when lowering the inside of the well casing (1) from the lower seismograph (q), the lower seismometer (q) is connected to the trumpet mouth (3C).
The lower seismograph is installed on the upper surface of the filling cement in the magnetless foundation lower cylinder (3B) connected to the magnetless foundation cylinder (3A), and then descends. The upper seismograph (8A) in the section (8) is installed on the vertical motion transmission arm base (6).