JP3035466B2 - Lining construction method and its construction equipment for irregular cross-section culvert - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

A. Object of the Invention (1) Field of Industrial Application The present invention is not limited to a circular general cross-section, but has an irregular cross-section such as a rectangular or oval shape in existing sewers such as sewer pipes, water pipes, and gas pipes. For a culvert, a lining construction method for constructing a lining layer on the inner surface of the culvert and a lining construction device used for carrying out the method,
More specifically, a lining construction method and a lining construction apparatus which are formed by inserting a so-called lining pipe formed by spirally winding a band-shaped member formed of a long plate-like body into a duct having a rectangular cross section, and the lining construction apparatus About.

(2) Prior Art As an example of a lining construction technique for a general sewer having a circular cross section, Japanese Patent Publication No. 2-312136 is known. That is, in this prior art, a lining pipe formed by spirally winding a continuously supplied strip-shaped member, starting from a pipe-making machine installed in a manhole of a sewer, is rotated into an existing sewer. It is fed with movement, that is, thrust force. However, according to this conventional technique, as the lining tube becomes longer,
In addition to the increase in weight, the frictional resistance between the outer surface of the lining pipe and the pipe wall of the sewer increases, and a large thrust force is required. Similarly, as the diameter increases, the weight per unit length also increases, and a greater thrust force is required. For this reason, the power equipment increases in size to obtain the necessary thrust force, and the equipment cost increases. Therefore, in this prior art, the length is increased.
There is a problem with increasing the diameter. Furthermore, one of the problems with this conventional technique is that it is impossible to cope with the bending of the sewer.

In order to solve this problem, the applicant of the present invention disclosed in Japanese Patent Application Laid-Open No. Hei 5-169439 (hereinafter referred to as the prior art) to spirally wind a band-shaped body in a pipe. A spiral pipe is manufactured by engaging the side edges of the strips adjacent to the pipe, and a lining construction method of the pipe inner peripheral surface is proposed in which the spiral pipe is used to line the inner peripheral surface of the pipe. According to this, since the lining pipe is additionally formed with the band-shaped member newly supplied in front of the running pipe to be manufactured, the production of a long lining pipe can be realized. However, in this prior application, the frame for mounting the pipe-forming roller at the pipe-forming site is rigid, and is limited to application to a pipe with a circular cross section. That is, for a duct with a rectangular cross section, not only does the frame not sufficiently reach the right-angled corner, but also the joining at the corner becomes unstable, and its application is limited.

(3) Problems to be Solved by the Invention The present invention is a further development of the prior application technology, and is not limited to a general circular cross section, but is applied to a duct having a rectangular or oval or other irregular cross section. It is an object of the present invention to provide a lining construction technique in a pipe with a modified cross section that can also deal with the problem.

[0005] b. Configuration of the Invention (1) Means for Solving the Problems The lining installation method and the installation device in the modified cross-section culvert according to the present invention employ the following configurations in order to achieve the above object. That is, the first invention relates to a lining construction method in a modified cross-section culvert, and as described in claim 1, in a modified cross-section culvert, a long strip-shaped member having joints formed at both side edges. Continuously supplied and spirally wound, leaving the tubular body formed by joining the mutually joining joints to each other, and holding the band-shaped member newly supplied in front of the already formed tubular body. A method for additionally forming a lining tube, having a predetermined width and a lateral rigidity,
A guide roller abutting on the inner surface of the band-shaped member is mounted around a forming frame in which the link mechanism is bendable and each link body is prevented from being bent in the middle, and the forming frame is provided with a tubular member already formed. At the edge portion, a joining roller portion composed of two rollers, an outer roller contacting the outer surface of the band-shaped member and an inner roller contacting the inner surface of the band-shaped member, is arranged, and the roller at the joining roller portion is driven to rotate. The two outer surfaces and the inner surface rollers sandwich the joint between the already formed tubular body and the newly supplied band-shaped member. The second invention is a construction device for implementing the first invention,
As described in claim 2, a long strip-shaped member having joints formed on both side edges is continuously supplied and spirally wound in a pipe with a modified cross-section to engage the joints that are in contact with each other. What is claimed is: 1. A lining construction apparatus for forming a tubular body by adding and forming a tubular body, wherein the forming frame has a predetermined width and a lateral rigidity, and is flexibly bendable by a link mechanism, thereby preventing each link body from being bent. A guide roller mounted around the forming frame and abutting on the inner surface of the tubular body, attached via the forming frame, and connected to each other at the joint between the already formed tubular body and the newly supplied band-shaped member. And a joining mechanism portion comprising an outer roller and an inner roller which are arranged at the position and sandwich the band-shaped member. In addition,
The first and second inventions described above do not exclude the application to a circular cross-section tube.

A third aspect of the present invention relates to a lining construction method in still another modified cross-section culvert. As described in claim 3, in the modified cross-section culvert, a long section having joints formed at both side edges is provided. The strip-shaped member is continuously supplied and spirally wound, leaving the tubular body formed by joining the mutually joining joints together, and is newly supplied in front of the already formed tubular body. A method of additionally forming a lining tube with a belt-shaped member having a predetermined width and a lateral rigidity, and a guide roller is provided around a forming frame which can be flexibly bent with a link mechanism and is brought into contact with an inner surface of the band-shaped member. ,
In addition, a joining roller portion composed of two rollers, an outer roller contacting the outer surface of the band-shaped member and an inner roller contacting the inner surface of the band-shaped member, is provided at the edge of the already formed tubular body. Then, while rotating the roller in the joining roller portion, the two outer surface and the inner surface rollers are sandwiched between the joining portion between the already formed tubular body and the newly supplied band-shaped member, and The molding frame is disposed inside the molding frame, and is rotated around a regulating frame which maintains rigidity and has a shape conforming to the irregular cross-sectional shape. A fourth invention is a construction apparatus for carrying out the third invention, and as described in claim 4, a long strip-shaped member having joints formed at both side edges in a pipe having a modified cross section. A lining construction device that continuously supplies and spirally winds, forms a tubular body by forming the joints that are in contact with each other, and has a predetermined width and lateral rigidity, A bending frame that can be bent with a link mechanism, a guide roller that is mounted around the molding frame and abuts against the inner surface of the tubular body, is attached via the molding frame, and is newly supplied with the already formed tubular body. A joining mechanism portion comprising an outer roller and an inner roller sandwiching the band-shaped member and arranged at the mutual position of the joining portion with the band-shaped member, and arranged inside the forming frame, maintaining rigidity and having a modified cross-sectional shape Guide rail The a, characterized by comprising the regulatory frame, for restricting the movement of the forming frame.

(2) Operation In the first invention of the method of lining the inside of the modified cross-section culvert, a shape and a perimeter suitable for the cross-section of the modified cross-section culvert are selected. At the closed portion of the belt-shaped member, the joining portions that are in contact with each other by the pinching action of the outer roller and the inner roller of the joining roller portion are engaged with each other. The joining roller portion is always located at the closed portion, and advances in the pipe axis direction at a predetermined pitch together with the newly supplied band-shaped member. As a result, the construction apparatus revolves as a whole, and the belt-shaped members are continuously closed to form a lining pipe. In the formation of this lining tube, the forming frame is bendable and prevented from being bent, so that it is formed along the inner periphery of the sewer and conforms to the irregular cross section. In a mode in which the outer roller and the groove formed on the outer surface of the belt-shaped member are engaged, reliable feeding can be obtained. In the second aspect of the present invention, the shape and perimeter of the molding frame are selected so as to conform to the cross section of the modified cross-section culvert.

In a third aspect of the present invention, in the lining construction method in a modified sectional culvert, a shape and a perimeter suitable for a section of the irregular sectional culvert are selected for the regulating frame. The band-shaped member newly supplied by the joining roller portion of the forming frame is closed, and a lining tube is formed. In addition, the molding frame is forced to move by the regulating frame, and the band-shaped member is plastically deformed, so that a lining tube having a modified cross section conforming to the shape of the regulating frame is formed. In the fourth aspect of the present invention, the shape and perimeter of the regulating frame are selected so as to conform to the cross section of the modified cross-section culvert.

(3) Embodiment An embodiment of a method and an apparatus for lining a pipe with a modified cross section according to the present invention will be described with reference to the drawings. (First Embodiment) FIGS. 1 to 12 show one embodiment (first embodiment) of a lining construction apparatus for a modified sectional duct according to the present invention.
In the present embodiment, an example of application to a duct having a rectangular cross section as a modified cross section will be described. That is, FIGS. 1, 2 and 3 schematically show the entire lining construction apparatus S, and FIGS.
Shows the configuration of each part of the lining construction apparatus S. Also,
19 to 21 show the respective aspects of the belt-shaped member. In these figures, P indicates a sewer having a rectangular cross section, and R indicates a lining pipe. Note that the forward direction and the rear direction are defined as the traveling direction (arrow A) of the present apparatus S.

[0010] strips 100, 120, 140 Figure 19 shows an example of the belt-shaped member used in the lining of the present embodiment. The belt-shaped member 100 has a main body in the shape of a flat plate having a constant thickness, and an appropriate number (seven in the illustrated example) of ridges 102 are continuously provided in the longitudinal direction of the outer surface thereof. Ridge 10
2, a flange 102a is formed at the tip. Ridge 1
02 form a groove 104 or a groove space. The inner surface 106 is formed substantially smooth. Belt member 100
On both sides of the joint 100 are overlapped and engaged with each other
A, 100B are formed. That is, the leading edge side joint 1
The base of the ridge 102A at the front end of 00A is expanded,
A concave groove 110 is provided vertically from the inner side, and
The overhang portion 112 is provided continuously from 02A. The trailing edge side joining portion 100B has a projecting portion 114 extending from the rear end protruding portion 102B. Near the end of the projecting portion 114, a ridge 116 engaging with the concave groove 110 of the leading edge side joining portion 100A is formed vertically. Is established. At the time of joining, the leading edge and the trailing edge of the adjacent belt-shaped members 100 overlap, and the trailing edge joining portion 100B sandwiches the outer roller and the inner roller of the joining roller portion described later on the leading edge joining portion 100A. As a result, the ridges 116 are formed in the grooves 110 and the flanges 102 of the ridges 102B.
The ends of the protruding portions 112 are fitted into and joined to each other. In this case, the main engagement is the groove 110 and the ridge 11
6, the overhang portion 112 and the ridge 102B make a secondary engagement, and therefore, the secondary engagement may be omitted in some cases. Further, in the present embodiment, a sealing material 118 is interposed at the abutting portions of the overhanging portions 112 and 114 to enhance the joining property. Note that the joints 100A, 100
If the fitting engagement at B is sufficient, the sealing material 11
8 can be omitted. The belt-shaped member is made of a synthetic resin material. In particular, a vinyl chloride (PVC) resin that can be continuously formed by extrusion from the viewpoint of moldability is preferable. However, this does not hinder metal molding.

FIG. 20 shows another embodiment of the belt-like member. In this band-shaped member 120, an appropriate number of trapezoidal ridges 122 are continuously provided vertically in the longitudinal direction of the outer surface, and a valley 124 is formed between the ridges 122. The ridges 122 and the valleys 124 have the same pitch in the width direction. A hollow portion is appropriately formed inside the ridge 122, so that the band-shaped member can be made rigid and lightweight. The inner surface 126 is formed to be substantially smooth. Joint portions 120A and 120B are formed on both sides of the belt-shaped member 120 so as to overlap and engage with each other. That is, the ridge of the outer joint 120A is formed in the same shape as the ridge 122, the inner surface of which is provided with the circular groove 130 in the vertical direction.
32 is slightly longer than the width of the valley 124. The inner joint portion 120B has a length of the overhang portion 134 substantially longer than that of the valley portion 124, and the end of the overhang portion 134 has a round shape which engages with the round groove 130 of the outer joint portion 120A. A convex ridge 136 is provided vertically, and a cut groove 138 is provided vertically in the ridge 122 at the base thereof.
At the time of joining, the inner joining portion 12 is attached to the outer joining portion 120A.
0B is pressed by the outer roller and the inner roller of the joining roller portion, and a round ridge 136 is formed in the round groove 130;
The ends of the projections 132 are fitted into the cut grooves 138 and joined.

FIG. 21 shows still another embodiment of the belt-like member.
This is composed of a combination of a main material (main band-shaped member) 140 and a fitting material 150. The main material 140 has a ridge 142 and a groove 144, and has joints 140A, 140 at both ends.
B is formed, and fitting grooves 1 are formed in the joints 140A and 140B.
46 are formed. In addition, the fitting member 150 has a fitting ridge 152 that is elastically fitted into the fitting groove 146 of the main member 140. At the time of joining, the fitting material 150 is joined across the joining portions 140A and 140B of the main material 140 arranged side by side.

Lining Apparatus S (See FIGS. 1 to 12) The configuration of the lining apparatus S of this embodiment will be described with reference to FIGS. As shown in FIGS.
This lining construction apparatus S is arranged on a forming frame 1 which forms a bendable annular body with a link mechanism having a predetermined width and constituted by a plurality of link bodies, and each shaft portion of the link mechanism of the forming frame 1. A plurality of guide rollers 2, a main / sub joining mechanism 5 (a main joining mechanism 5 </ b> A, a sub joining mechanism 5 </ b> B) attached to two opposing portions of the molding frame 1 and including an outer roller 3 and an inner roller 4. ), The main part of. 1 and 2 show position 1 in the middle of the pipe making of the apparatus S, and FIG. 3 shows position 2.

The detailed structure of each part will be described below. Forming frame 1 (refer to FIGS. 1 to 7) The forming frame 1 forms an annular body with a required width, and is flexibly bendable in the outer diameter direction with a link mechanism.
And it has lateral rigidity. In this embodiment, the annular body forms a link chain in which a plurality of link bodies are connected. In the present embodiment, the ring body includes a link chain of 24 link bodies, but the number is not limited. More specifically, as shown in FIGS. 4 and 5, each link body has a rod-shaped shaft portion 10 of a required length, and a pair of adjacent shaft portions 10 at both front and rear ends of the shaft portion 10. And a plate-like link arm 12 that is rotatably connected via a bearing 11. The outer sides of the link arms 12 can be bent on the basis of 180 °, but the center arms are prevented from being bent. For this reason, a folding mechanism is provided, an example of which is shown in FIG. That is, the main stopper 14 is protruded from the end of one link arm 12 (I), and the other
A stopper receiver 15 protruding from the link arm 12 (I) side is fixed to 2 (II), and the main stopper 14 and the stopper receiver 15 abut against each other to prevent the center bend. Reference numeral 16 denotes a sub-stopper that regulates the angle (α) of the outer bend.

Guide roller 2 (see FIGS. 1 to 5 and FIG. 7) The guide roller 2 is rotatably mounted on each shaft 10 of the molding frame 1. The guide roller 2 is a shaft 1 in this embodiment.
Although it is attached integrally to the shaft 0, there is also a mode in which it is attached via a bearing. The roller body is made of a hard synthetic resin body or a metal body, and contacts the inner surface of the belt-shaped member 100. The standard guide roller 2 (2a) has a length that is the full width of the inside of the link body. (See FIG. 7).

Joining mechanism 5 (see FIGS. 1 to 3 and FIGS. 7 to 12) The joining mechanism 5 is a pair of main and auxiliary joining mechanisms 5A and 5B, and is mounted at a diagonal position of the molding frame 1. You. The joining mechanism 5 mainly includes a joining roller 20 in which the inner roller 3 and the outer roller 4 are combined, and a box body 2 containing a gear mechanism 21 for rotating the rollers 3 and 4 synchronously.
2 and a hydraulic motor 23 attached to the box 22 and serving as a rotational drive source for the rollers 3 and 4.
A is arranged corresponding to the joining portion of the band-shaped member 100 wound spirally, that is, the position where the band-shaped member 100 first closes. The inner roller 3 is mounted on the shaft 10 of the molding frame 1 in the same manner as the guide roller 2.

(Joining Roller Section 20) (See FIG. 8) The joining roller section 20 includes an inner roller 3 and an outer roller 4 which are arranged side by side in the tube axis direction, and a belt-like member between the two rollers 3, 4. 100 are arranged at predetermined intervals so as to sandwich them. These rollers 3 and 4 are driven to rotate in conjunction with the drive shaft of the gear mechanism. The detailed structure of the joining roller unit 20 will be described with reference to FIG. FIG. 8 is an enlarged view of the two rollers 3 and 4 on the inner surface and the outer surface of the joining roller portion 20, and the rollers 3 and 4 and the belt-shaped member 10 are shown.
The correspondence with 0 is shown. As illustrated, in the present embodiment, these rollers 3 and 4 are arranged over a plurality of (3 in the present embodiment) spans of the belt-shaped member 100. H indicates a first closed portion between the belt-shaped members 100. The main joining mechanism 5A is arranged corresponding to the first closing portion H. Therefore, the guide roll 2 (2) in front of the main joining mechanism 5A
b) is shortened by one span of the band-shaped member 100, and allows the band-shaped member to be retracted. The inner roller 3 has a cylindrical shape, is in close contact with the inner surface of the belt-shaped member 100,
Belt member 10 pressed from outside by outer roller 4
Supports 0. In addition, an enlarged diameter portion 3a is formed at the front end of the inner roller 3, and a flange 3b that engages with the groove 110 on the inner surface of the belt-shaped member 100 is protruded from the enlarged diameter portion 3a. Can be omitted. The outer roller 4 is a cylindrical body 25
Are formed at predetermined intervals, and these annular flanges 26 are formed on the ridges 10 of the belt-shaped member 100.
It fits into the groove 104 between the two. The outer periphery of the cylindrical body 25 is pressed against the outer surface of the ridge 102 of the belt-shaped member 100.
The outer surface of the cylindrical body 25 is knurled to prevent slippage with the band-shaped member 100. In addition, a part 25a of the part has a small diameter and comes off the ridge 102. A pair of two annular flanges 26 a corresponding to the closing portion H are attached to the annular flange 26, and the peripheral sides of the pair of annular flanges 26 a contact the belt-shaped member 100. Other annular collar 2
It is not necessary to make special contact with 6, and it is important to fit into the groove 104 between the ridges 102. It should be noted that the correspondence in FIG. 8 is not essentially different even if the belt-like members 120 and 140 are attached. With respect to the band-shaped member 140, the fitting member 150 is located at the closing position H.

(Box 22) (See FIGS. 9 and 10) The box 22 maintains rigidity, and has an upper portion 22A and a lower portion 22.
B and upper and lower portions 2 by the pin shaft member 28 on the side.
2A and 22B are pivotally connected, and the upper portion 22A can be opened around the pin member 28. The box body 22 is an upper and lower part 22
A shaft portion of the gear mechanism 21 is held by the front and rear surfaces of A and 22B. In the lower portion 22B of the box 22, the link arm 1 of the molding frame 1 is interposed via the rear surface.
2 and the front part is provided to a mounting part of the hydraulic motor 23. A closing device 29 for closing the upper portion 22A to the lower portion 22B is attached to the other side surface of the box 22. The one shown in the figure is an example, in which a connecting rod 31 is pivotally attached to a rib 30 projecting from the upper part 22A, and the lower part 2
A bifurcated receiving shelf 32 protrudes from 2 </ b> B in the same phase as the rib 30, and the connecting rod 31 enters a concave portion of the receiving shelf 32. A coil spring 33 and a nut 34 that is screwed into a screw portion below the coil spring 33 are sequentially mounted on the connecting rod 31, and the coil spring 33 is pressed against the lower surface of the receiving shelf 32 by tightening the nut 34. Thereby, the tightening force of the upper portion 22A is appropriately adjusted by the elasticity of the coil spring 33.

(Gear Mechanism 21 and Hydraulic Motor 23) (See FIG. 9) The gear mechanism 21 has two shaft portions 36 and 37 rotatably bridged over the front and rear walls of the box 22. A gear 38 is fixed to the shaft portion 36, and a gear 39 that meshes with the gear 38 is fixed to the second shaft portion 37. First shaft 3
6 is connected to the inner roller 3, and the second shaft 37 is connected to the outer roller 4. The number of rotations of the shafts 36 and 37 can be adjusted by adjusting the number of teeth. In this embodiment, the two shaft portions 36 and 37 are supported and fixed with a rotary bearing, but a sliding bearing can be used freely. Further, a spacer roller 40 for maintaining a gap is rotatably attached to the second shaft portion 37. The outer periphery of the spacer roller 40 contacts the inner wall surface of the pipe P.
The spacer roller 40 has an appropriate diameter and can be omitted. The hydraulic motor 23 is attached to the front surface of the box 22 by connecting the drive shaft 23 a to the first shaft 33. The hydraulic motor 33 is connected to an in-side pipe 41a for sending oil to the hydraulic motor 23 and an out-side pipe 41b for discharging oil from the hydraulic motor 23. Further, these pipes 41 are connected to a rotary joint 42 (see FIG. 1) attached to the box body 22, and a pipe 43 connected to an external pressure source is connected to the rotary joint 42. By passing through the rotary joint 42, the working fluid is exchanged between the pipe 41 on the hydraulic motor 23 side that rotates and the external pipe 43 that does not rotate. By the gear mechanism 21 and the hydraulic motor 23, the driving force of the hydraulic motor 23 is transmitted to the first shaft 36 and the gear mechanism 21
Is transmitted to the second shaft portion 37 via the The shaft 36 and the shaft 37 rotate in opposite directions.

When the joining mechanism 5 is attached to the lining pipe R, the upper portion 22A of the box body 22 is opened, and the annular flange 26 of the outer roller 4 matches the pitch of the ridge 102 of the belt-like member 100. The annular collar 26a is located at the closing portion H, and thereafter, the upper portion 22A is closed to the lower portion 22B, the closing device 29 is closed, and the nut 34 is tightened.

The joining mechanism 5 is fixed to the link arm 12 of the molding frame 1 via the box 22 as described above, but the box 22 of the joining mechanism 5 is always
Means for holding the attitude at right angles to zero can be taken.
11 and 12 show one mode of the posture holding mechanism I. This posture holding mechanism I has two V-shaped stays 57 each having one end pivotally connected to the link arm 12 via a pin shaft 55 and the other end pivotally connected to one pin shaft 56.
A top body 58 rotatably attached to the tip of the pin shaft 56, and a guide body 59 fixed to the rear surface of the box body 22 and having a groove 59a for guiding and moving the top body 58 in the radial direction. Become. With this configuration, when both link arms 12 sandwiching the joining mechanism 5 are bent inward,
The stay 57 also narrows the angle of the V-shape with the axis 10 and the pin shaft 56 as symmetry axes, and the pin shaft 56 moves inward. The top body 58 at the end of the pin shaft 56 is
It is guided by 9a and moves. Thereby, the box body 22 held by the shaft 10 and the pin shaft 56 changes its posture to the shaft 10.
Maintain a right angle at all times.

Forming frame 1 incorporating guide roller 2
When inserted into a sewer P having a rectangular cross section, it retains a rectangular shape as a whole with roundness at the corners of the sewer P.

Positions 1 and 2 FIGS. 1 and 2 show position 1 in the middle of the production of the lining tube R, and FIG. That is, position 1 refers to a state in which the joining mechanism 5 contacts the inner wall of the rectangular cross-section culvert P, position 2 refers to a state in which the joining mechanism 5 reaches the corner of the rectangular cross-section culvert P and separates from the inner wall surface, 4
The side contacts the inner surface of the sewer P.

Lining Construction in Sewer P A description will be given of a lining construction method in an underground buried sewer performed using the lining construction equipment S of this embodiment, and also the operation of the apparatus S of this embodiment. . FIG. 13 shows an outline of the lining work. In the method of this embodiment, an example of application to a sewer sewer as an underground sewer is shown. In the figure, Q1 is an upstream human hole, and Q2 is a downstream human hole. As shown in FIG. 13, on the ground portion, an unwinding device T with a turntable around which the belt-shaped member 100 is wound is disposed on the upstream human hole Q1 side, and a hydraulic drive source G is disposed on the downstream human hole Q2 side. Is done. Construction will be done from upstream to downstream.

The steps will be described below in the order of the steps. (1) The lining construction device S is carried into the culvert P to be rehabilitated through the human hole Q1. That is, the molding frame 1 of the present construction apparatus S is bendable, and the human hole Q1 is formed.
It is easy to carry it in, and when the opening of the human hole Q is small and cannot be dealt with within the normal bending range, the auxiliary stopper 16 that defines the external bending angle (α) is temporarily removed. Is made easier. Further, the joining mechanism 5 can be attached to the molding frame 1 and can be easily attached on site. The circumference of the construction device S is slightly smaller than the circumference of the inner wall surface of the rectangular pipe P. In addition,
The circumference of the construction apparatus S is determined by the length of the outermost diameter envelope of the guide roll 2.

(2) The belt-like member 100 is drawn into the human hole Q1, and the belt-like member 100 is manually wound several times (about three times) in the human hole Q1 to form a lining pipe (this is called a starting lining pipe). ) Produce Ro. The circumference of the inner surface of the starting lining pipe Ro is equal to the circumference of the construction apparatus S. The starting lining tube Ro is connected to the belt-shaped member 10.
The circularity is maintained in a natural state where no forcing force is applied by the elasticity of zero.

(3) The main construction apparatus S is incorporated inside the start lining pipe Ro, and the joining mechanism 5 of the main lining construction apparatus S is provided at the front edge of the start lining pipe Ro.
Is set in a predetermined state. That is, the inner roller 3 and the outer roller 4 of the joining roller portion 20 are arranged at the closing portion of the lining pipe Ro.
Is fitted into the groove 104 of the belt-shaped member 100, and in particular, the annular flange 26 a accurately abuts on the closing portion H. Further, the flange 3 b of the inner roller 3 is engaged with the concave groove 110 of the belt-shaped member 100.

(4) The construction apparatus S with the starting lining pipe Ro in this state assembled is drawn into the rectangular pipe P.
At this time, the lining pipe Ro having a circular shape receives a restraining force from the rectangular pipe P and is deformed into a rectangular shape along the inner wall surface of the rectangular pipe P. And this construction apparatus S also follows this deformation by the link body of the molding frame 1. This retraction is preferably performed in the state of position 2 shown in FIG. 3, but does not exclude position 1 shown in FIG.
In the retraction operation at the position 1, forcibly pulling the opposite sides of the main molding frame 1 in the center direction by using an appropriate tension member (for example, a tie rod) is a preferable expedient.

(5) The inner and outer rollers 3 and 4 of the joining mechanism 5 are driven to rotate, and a clamping force between the inner roller 3 and the outer roller 4 is used at the closing portion H of the belt-shaped member 100 by the joint structure for starting. The belt-shaped member 100 newly supplied in connection with the lining pipe Ro is joined. At the same time, the entire construction apparatus S revolves in the pipe circumferential direction and moves forward in the pipe axis direction by the engagement and guiding action between the annular flange portion 26 of the outer roller 4 and the groove 104 of the belt-shaped member 100. Thereby, the belt-shaped member 100 is spirally wound, and the lining pipe R is constructed.

(5A) In this step, when the joining mechanism 5 is in contact with the inner wall of one side of the sewer P (position 1), the lining pipe R on the wall separates from the inner wall, The lining pipe R on the adjacent side is in contact with the inner wall surface and has a flat rectangular shape. When the joining mechanism unit 5 reaches the corner part on the way to the other side of the sewer P (position 2), the lining pipe R abuts on each inner wall surface except for the corner part, and forms a rectangular shape. When the joining mechanism 5 comes into contact with the inner wall surface of the other side of the culvert P, the lining tube R on the side is separated from the inner wall surface, and the lining tube R on the adjacent side is separated from the inner wall surface. A flat rectangular shape. By repeating this, the lining tube R is formed.

(5B) In this step, the belt-shaped member 100 is sequentially supplied from the unwinding device T disposed on the ground. As shown in FIG. 13, the unwinding device T is provided with a turntable 204 rotatably via a trochanter 202 on a circular rail 200 arranged around the opening of the human hole Q1. A winding drum 206 around which the belt-shaped member 100 is wound so as to be able to be extended freely is supported on the rotary table 204 so as to be rotatable. Thereby, the turntable 204 along the circular rail 200
In the horizontal plane and the rotation of the winding drum 206 in the vertical plane are synthesized. The strip-shaped member 100 makes a torsional rotation in accordance with the pipe-forming operation, and the unwinding device T follows the rotation with the turntable 204 in synchronization with the rotation.

(6) With the advance of the construction device S, the running pipe R left behind the construction device S becomes 4
The side comes into close contact with the inner wall surface of the pipe P.

(7) When the lining pipe R is constructed over the entire length of the culvert P, the gap between the culvert P and the lining pipe R is filled with cement milk, and the solidification thereof is completed.

(Effects of the First Embodiment) Since the lining work in the pipe of irregular cross-section according to the present embodiment is performed in the manner described above, the following effects are exhibited. According to the present embodiment, the produced lining pipe R is left in the sewer P as it is, so that a long lining work can be performed without being restricted by the diameter of the lining pipe and the pipe production distance. Also,
The lining pipe R having a bend can be created, and it is possible to cope with a case where a bend exists in the sewer P. Further, the device S is guided at a predetermined pitch by the engagement guide action between the annular flange portion 26 of the outer roller 4 and the groove 104 of the belt-shaped member 100, so that the lining pipe R is reliably formed. Further, according to the present embodiment, it is possible to implement a lining pipe in which the gap between the lining pipe and the pipe wall is as small as possible in contact with the deformed pipe and in contact with the pipe wall of the deformed pipe.

(Second Embodiment) FIGS. 14 to 18 show another embodiment (a second embodiment) of a lining construction apparatus for carrying out the lining construction method in a duct with a rectangular cross section according to the present invention. V indicates the lining construction device. In these figures,
The same reference numerals are given to members equivalent to those in the previous embodiment.

Band members 140 and 160 FIG. 22 shows an example of the band members used in the lining work of this embodiment. In the belt-shaped member 160, a metal (usually steel) cross-section W-shaped (V-shaped or U-shaped) plastic deformation functional material is formed between appropriate ridges 102 of the band-shaped member 100 shown in FIG. Plastic deformation material 17
0 is attached. The belt-shaped member 160 is deformed following the plastic deformation of the plastically deformable material 170. FIG. 23 shows another example of the belt-shaped member of this embodiment. This belt-like member 180
In FIG. 21, a metal (usually steel) plastic wire 190 as a plastically deformable material is inserted into an appropriate ridge 122 of a belt-like member 120 shown in FIG. The belt-like member 180 is deformed following the plastic deformation of the plastic wire 190.

[0037] As shown in lining apparatus U FIGS. 14 18, the lining device V, forming frame 1 forming a flexure freely annular body with a link mechanism having a predetermined width, the molding of the frame 1 A plurality of guide rollers 2 arranged on each shaft of the link mechanism;
Attached to two opposite locations of the molding frame 1,
A main / sub joining mechanism 5 (main joining mechanism 5A, sub joining mechanism 5B) including an outer roller 3 and an inner roller 4;
It comprises a rectangular regulating frame 6 disposed inside the forming frame 1 at a predetermined interval, and a main part of a guide 7 bridged between the forming frame 1 and the regulating frame 6. In other words, the running construction apparatus V of the present embodiment is obtained by adding the restriction frame 6 and the guide 7 to the running construction apparatus S of the first embodiment.

Hereinafter, the detailed structure of each part will be described. Forming Frame 1 and Guide Roller 2 The forming frame 1 and the guide roller 2 are the same as those in the first embodiment. That is, the molding frame 1 forms an annular body with a required width, is flexibly bendable in the outer radial direction with a link mechanism, and has lateral rigidity. The guide roller 2 is rotatably mounted on each shaft portion 10 of the molding frame 1.

Joining mechanism 5 The joining mechanism 5 conforms to the first embodiment. Therefore, also in the present embodiment, the main / sub bonding mechanism portions 5A and 5B are paired, are mounted at diagonal positions of the forming frame 1, and the bonding roller portion 20, in which the inner roller 3 and the outer roller 4 are paired, It has a box 22 containing a gear mechanism 21 for synchronously rotating these rollers 3 and 4, and a hydraulic motor 23 attached to the box 22 and serving as a rotation drive source for the rollers 3 and 4.
In the joining mechanism 5 corresponding to the band-shaped member 140, the outer roller 4 does not have the annular flange 26 made of a plastically deformable material.

Control Frame 6 (See FIGS. 16 and 17) The control frame 6 has a large rigidity and a rectangular overall shape. In the present embodiment, a mold steel having a hollow groove 52 is used, and the groove 52 opens outward. The restriction frame 6 is assembled with a divided body.

Guide 7 (See FIGS. 16 to 18) The guide 7 is interposed between the forming frame 1 and the regulating frame 7, and guides the movement of the forming frame 1 along the trajectory of the regulating frame 7. More specifically, the guide element 7 is provided at both ends of a bifurcated main body with the shaft portions 10 of the molding frame 1.
A roller holder 55 extends outward from the center of the main body, and a rotatable shaft 57 having rollers 56 attached to both sides of the roller holder 55 is rotatable. To hold. The roller 56 is mounted in the groove 52 of the regulating frame 6 and rolls along the inner wall.

With the above configuration, the forming frame 1 in which the guide roller 2 and the joining mechanism 5 are assembled advances along the shape of the regulating frame 6 which keeps the same phase with respect to the cross section of the tube.

[0043] describing the Kanmizo lining method in underground sewer which is implemented using a lining device V for lining a second embodiment of the P. When the construction apparatus V is carried into the rectangular sewer P, a regulation frame 6 having a size corresponding to the inner peripheral length of the sewer P is selected. The restriction frame 6 is composed of a divided body. After the divided body is carried into the human hole Q1, it is assembled into a predetermined rectangular shape.
The construction apparatus V is assembled in the human hole Q1. Band member 14
0 is drawn into the human hole Q1, and a starting lining pipe Ro is created using the present construction apparatus V. The start lining pipe Ro is formed in a rectangular shape, and the start is drawn into the sewer P. By driving the joining mechanism unit 5 of the construction apparatus V, the forming frame 1 in which the guide roller 2 and the joining mechanism unit 5 are assembled advances along the shape of the regulating frame 6. At the corner of the regulating frame 6, the joining roller 20 of the joining mechanism 5 folds the belt-shaped member 140 inward via the guide 7. At this time, the regulation frames 6 always maintain the same phase. That is, when the joining mechanism 5 is up and down as in the state of FIG. 14 and when the joining mechanism 5 is moved to the side, the self-holding force of the lining pipe R already formed causes the present construction apparatus V Maintains a rectangular shape.

(Effects of the Second Embodiment) Since the lining work in the pipe with a modified cross section of the present embodiment is performed in the manner described above, the following effects are exhibited. According to the present embodiment, the produced lining pipe R is left in the sewer P as it is, so that a long lining work can be performed without being restricted by the diameter of the lining pipe and the pipe production distance. Also,
The lining pipe R having a bend can be created, and it is possible to cope with a case where a bend exists in the sewer P. Further, the device S is guided at a predetermined pitch by the engagement and guiding action between the annular flange portion 26 of the outer roller 3 and the groove 104 of the belt-shaped member 100, and the lining pipe R is reliably formed. Further, according to the present embodiment, not only can a lining pipe similar to an existing modified cross-section pipe be constructed, but also a non-similar lining pipe can be constructed (for example, a rectangular shape in a circular cross section), and application to a modified cross section is possible. The properties are further improved.

The present invention is not limited to only the above-described embodiments, and various design changes can be made within the scope of the basic technical concept of the present invention. That is, the following embodiments are included in the technical scope of the present invention. In the forming frame 1, each guide roller 2 has its shaft 1
0 may be attached to the intermediate position of the link arm 12. In the joining mechanism 5, the sub-joining mechanism 5B requires at least the inner roller 3 and the outer roller 4, and the drive mechanism can be omitted. Alternatively, the sub-joining mechanism 5B may be omitted. The joining mechanism 5 is not limited to the hydraulic drive, but may be a pneumatic motor or an electric motor. When a pneumatic motor is used, the rotary joint 42 is still used, but when an electric motor is used, a rotary brush is used instead of the rotary joint. Alternatively, the rollers 3 and 4 are driven by a handle operation via the gear mechanism 21 without excluding the manual mechanism.

C. EFFECT OF THE INVENTION According to the lining construction method and the construction apparatus in the sewer common to the present invention, the produced lining pipe is left in the sewer as it is, so the diameter of the lining pipe and the pipe making distance Lining construction can be performed without being restricted by the above. In addition, a lining pipe having a bend can be created, and it is possible to cope with a case where a bend exists in a sewer. Furthermore, it is possible to form the corners of a duct having a rectangular cross section, and it is possible to cope with a duct having a rectangular or oval shaped cross section without being limited to a circular general cross section. And
According to the first and second aspects of the present invention, it is possible to implement a lining pipe in which the gap between the lining pipe and the pipe wall is as small as possible by contacting the deformed pipe and contacting the pipe wall of the deformed pipe.
According to the third and fourth aspects of the present invention, not only can a lining pipe similar to an existing deformed cross-section pipe be constructed, but also a non-similar lining pipe can be constructed (for example, a rectangular shape in a circular cross section). Further, the applicability to irregular cross sections is further improved.
According to the fifth aspect of the invention, the outer roller of the joining roller portion is guided by the T-shaped rib and advances at a desired pitch. According to the invention of claim 6, plastic deformation of the belt-shaped member can be realized by simple means. According to the eighth aspect of the present invention, it is possible to reliably feed the molding frame.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view (II gland sectional view of FIG. 2) showing an entire embodiment (first embodiment) of a lining construction apparatus in a sewer according to the present invention.

FIG. 2 is a front view thereof (a view taken in the direction of arrow II in FIG. 1).

FIG. 3 is a front view thereof.

FIG. 4 is a partial cross-sectional plan view of a molding frame.

FIG. 5 is a view in the direction of the arrow V in FIG. 4;

FIG. 6 is a structural view of a link body of a molding frame.

FIG. 7 is a plan view of a joining mechanism.

FIG. 8 is a configuration diagram of a joining roller unit of the joining mechanism unit.

FIG. 9 is a sectional view taken along line IX-IX of FIG. 7;

FIG. 10 is a view as seen in the direction of the arrow X in FIG. 9;

FIG. 11 is another mounting aspect diagram of the joining mechanism.

FIG. 12 is a sectional view taken along line XXII-XII of FIG. 11;

FIG. 13: Outline of construction work

FIG. 14 is a front view showing the entirety of another embodiment (second embodiment) of the inside of a sewer lining construction apparatus of the present invention.

FIG. 15 is a sectional view taken along line XV-XV in FIG. 12;

FIG. 16 is a partially enlarged side view of the construction apparatus.

FIG. 17 is a sectional view taken along line XVII-XVII in FIG. 14;

FIG. 18 is a perspective view of a guide.

FIG. 19 is a view showing one embodiment of a belt-shaped member used in the present invention.

FIG. 20 is another view of the belt-shaped member used in the present invention.

FIG. 21 is a view showing still another embodiment of the belt-shaped member used in the present invention.

FIG. 22 is a view of one embodiment of a belt-shaped member used in the present invention.

FIG. 23 is a view showing another embodiment of the belt-shaped member used in the present invention.

[Explanation of symbols]

P: sewer, R: lining pipe, S, U: lining construction device, 1: forming frame, 2 ... guide roller, 3 ... inner roller, 4 ... outer roller, 5 ... joining mechanism, 6 ... regulating frame, 7 ... Guide, 10 ... Shaft, 12 ... Link arm,
100, 120, 140, 160, 180...
102, 122, 142 ... ridge, 104, 124, 14
4: Groove (valley), 170, 190: plastically deformable material

──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Eiki Akimoto 7-7 Ushizawa-machi, Iruma-shi, Saitama (72) Inventor Hamao Yamashiro 213-10 Sasai Green Heights 5-402 Sayama Green Heights 5-402 (56) Reference Document JP-A-4-103337 (JP, A) JP-A-2-41231 (JP, A) JP-B 3-48392 (JP, B2) JP-B 5-32538 (JP, B2) (58) Field (Int.Cl. ⁷ , DB name) F16L 1/024 B29C 63/30

Claims (8)

(57) [Claims] 1. A long strip-shaped member having joints formed on both side edges is continuously supplied and spirally wound in a deformed cross-section culvert to join mutually joined joints. A method in which a formed tubular body is left, and a lining tube is additionally formed with a band-shaped member newly supplied in front of the already formed tubular body, having a predetermined width and lateral rigidity, and a link. A guide roller is mounted around the forming frame, which is made to be flexible by a mechanism and in which each link body is prevented from being bent, and a tubular body already formed on the forming frame is provided. At the edge of the belt, a joining roller portion composed of two rollers, an outer roller contacting the outer surface of the band member and an inner roller contacting the inner surface of the band member, is arranged, and the roller at the joining roller portion is rotationally driven. Lining work in a pipe with a modified cross-section, characterized in that it is sandwiched between the two outer and inner rollers at the position of the joint between the already formed tubular body and the newly supplied strip-shaped member. Method. 2. A long strip-shaped member having joints formed on both side edges is continuously supplied and spirally wound in a deformed cross-section culvert, so that joints that are in contact with each other are engaged with each other. A lining construction apparatus for forming and adding a tubular body, having a predetermined width and a lateral rigidity, and having a link mechanism capable of flexing and preventing bending of each link body, A guide roller mounted around the forming frame and abutting against the inner surface of the tubular body; a position of a joint between the already formed tubular body and a newly supplied strip-shaped member mounted via the forming frame; A lining construction apparatus in a pipe with a modified cross section, characterized by comprising a joining mechanism portion comprising an outer roller and an inner roller which are disposed on the belt and sandwich the band-shaped member. 3. A long strip-shaped member having joints formed on both side edges is continuously supplied and spirally wound in a deformed cross-section culvert to join mutually joined joints. A method in which a formed tubular body is left, and a lining tube is additionally formed with a band-shaped member newly supplied in front of the already formed tubular body, having a predetermined width and lateral rigidity, and a link. A guide roller is mounted around the flexible frame around the bending frame with a mechanism, and abuts against the outer surface of the belt-shaped member at the edge of the tubular body already formed on the frame. Arranging a joining roller portion composed of two rollers, an outer roller and an inner roller abutting on the inner surface of the belt-shaped member,
While the roller in the joining roller portion is driven to rotate, it is sandwiched between the two outer surface and inner surface rollers at a portion where the joining portion between the already formed tubular body and the newly supplied band-shaped member is mutually closed, A lining construction method in a pipe with a modified cross section, wherein the frame is arranged inside the molding frame, and is rotated around a regulating frame that has rigidity and conforms to the modified cross section. 4. A long strip-shaped member having joints formed on both side edges is continuously supplied and spirally wound in the deformed cross-section culvert, and the joints that are in contact with each other are engaged with each other. A lining application device for forming and adding a tubular body, comprising: a forming frame having a predetermined width and a lateral rigidity and capable of bending with a link mechanism; being mounted around the forming frame, an inner surface of the tubular body An outer surface which is attached to the joining portion between the already formed tubular body and the newly supplied band-shaped member, and is disposed between the joined portions of the tubular member and the newly supplied band-shaped member, and which sandwiches the band-shaped member. A joining mechanism portion comprising a roller and an inner roller; a regulating frame disposed inside the molding frame, having a guide track having an irregular cross-sectional shape while maintaining rigidity, and regulating movement of the molding frame. Lining apparatus in irregular cross section sewer characterized and. 5. The modified cross section according to claim 1, wherein a plurality of T-shaped ribs are formed on an outer surface of the belt-shaped member, and an outer roller of the joining roller portion is fitted between the T-shaped ribs. How to apply lining in sewer. 6. The method of claim 3, wherein a plastically deformable material is inserted into the belt-like member. 7. The method according to claim 1 or 3, wherein the modified cross-section culvert is a box culvert. 8. The modified cross-section according to claim 4, further comprising a guide interposed between the forming frame and the regulating frame, the guide being fixed to the forming frame and moving along a guide rail of the regulating frame. Lining construction equipment in sewers.