JPH0726705B2 - Sewer pipe sag prevention device and sewer pipe sag prevention method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION I. Object of the Invention (1) Field of Industrial Application The present invention relates to a pipe dripping prevention device and a pipe dripping prevention method for a sewer pipe buried in soil.

(2) Conventional technology Conventionally, in the sewage pipe burial work, trenches of the required depth were excavated in the mutual sections of manholes installed at intervals of about 30 m, and about 4 m was excavated in this excavation groove. While connecting the sewer pipe of the length of, connect the sewer pipe at both sides of the sewer pipe at an interval of about 1.5 m to position the sewer pipe that has been piped. The raw wire is wound and locked to the pile to position the sewer pipe and prevent the pipe from dripping, and then the soil excavated in the excavation trench is backfilled. This prevents the pipe sagging phenomenon while supporting the sewer pipe firmly supported at the connection position between the manholes at the intermediate position.

(3) Problems to be Solved by the Invention However, when supporting the intermediate position of each manhole pipe, the sewer pipe is positioned in advance in the height and width directions and then locked by the raw wire and the pile. However, in reality, since it is necessary to closely attach the wire to the pipe and wrap it around, the wire is attached to the pipe while pulling the wire strongly. It was difficult to bury and support the setting position accurately.

In addition, the raw wire is less likely to be stretched with time due to ground pressure or the like, which causes a so-called pipe sagging phenomenon that bends downward.
In particular, when pipes are piped horizontally without any gradient, the pipe dripping phenomenon is likely to occur, and foreign matters are accumulated in the portion where the pipe dripping occurs and the flow of water deteriorates. It requires excavation and repair work, which requires a lot of work.

Further, in the portion where the wire is well tightened, the pipe is likely to be cracked, and there is a problem that water leakage occurs from the cracked portion.

The present invention has been made in view of the above-mentioned conventional problems, and an object thereof is to set a tensioning plate at a predetermined height at predetermined intervals in a groove excavated for sewer pipes in the longitudinal direction. The sewer pipes are arranged on the upper surface of this tensioning plate while positioning them in the groove width direction, and further, a plurality of pairs of fixing piles made of a pair of piles are driven on both sides of the piped sewer pipes. U that supported the bottom surface of the sewer pipe on each fixing pile
The hooks at both ends of the die-shaped receiving arm are height-adjustably locked, and the pressing arm is pressed against the upper surface of the sewer pipe to fix it to the pile, so that the sewer pipe is backfilled with the predetermined material after backfilling the excavated soil. Sewer pipe dripping that can be maintained accurately in position, does not cause pipe dripping, does not break pipes after construction, leaks water, etc. An object is to provide a prevention device and a method for preventing spillage of sewer pipes.

II. Configuration of the Invention (1) Means for Solving the Problems In order to achieve the above-mentioned object, the present invention includes a tensioning plate 16 arranged at a predetermined interval in the longitudinal direction in the excavation groove 12, The sewer pipe 18 placed on the tensioning plate 16 while positioning the excavation groove 12 in the width direction, and on both sides in the width direction of the sewer pipe 18, the sewer pipe 18 is sandwiched between the sewer pipe 18 and the sewer pipe 18. A pair of fixing piles 2 partly driven into the groove bottom portion 14 of the excavation groove 12
2, 22 and a substantially U-shaped receiving arm 24 that supports the sewer pipe 18 from below and has hook portions 26, 26 at both ends, and a reverse for pressing and fixing the sewer pipe 18 from above. A U-shaped pressing arm 36, the hook portion 26 of the receiving arm 24 is abutted and locked on the upper end portion of the pair of fixing piles 22, and the hook portion 26 and the fixing pile are also provided.
An adjustment bolt 28 for adjusting the height position of the sewer pipe 18 supported by the receiving arm 24 by adjusting the gap width with the upper end of the sewer pipe 22 is screwed to the hook portion 26 of the sewer pipe. It is composed of a pipe dripping prevention device 10.

Next, a plurality of tension plates 16 are arranged at predetermined intervals in the longitudinal direction in the excavation groove 12, and the sewer pipe 18 is placed on the tension plate 16 while positioning in the excavation groove width direction. Then, on both sides in the width direction of the sewer pipe 18, a plurality of pairs of fixing piles 22, 22 are driven into the groove bottom portion 14 of the excavation groove 12 so as to sandwich the sewer pipe 18, and at both ends thereof. Equipped with a hook portion 26,
Further, the substantially U-shaped receiving arm 24 having the adjusting bolt 28 attached to the hook portion 26 is circulated from below the sewer pipe 18, and the hook portion 26 is provided at the upper end portion of the fixing piles 22 and 22. The sewer pipe 18 is supported from below by abutting and locking, and the inverted U-shaped pressing arm 36 is attached and fixed from above the sewer pipe 18, and the hook portion 26 and the upper ends of the fixing piles 22 and 22 are fixed. This receiving arm by adjusting the gap width of the
The height of the sewer pipe 18 supported by 24 is adjusted, and the sewer pipe is prevented from sagging.

(2) Operation The pipe dripping prevention device according to the present invention is a sewage pipe arranged at a predetermined interval in the longitudinal direction in an excavation trench, and a sewer pipe positioned and placed on this stake plate. A pair of fixing piles driven into both sides of the fixing pile at appropriate intervals, and a hook portion which supports the sewer pipe from below and which can be engaged with the upper ends of the pair of fixing piles at both ends. It is composed of a V-shaped receiving arm and an inverted U-shaped holding arm for pressing and fixing the sewer pipe from above. The sewer pipe is mounted on the tensioning plate arranged in the excavation groove. Position in the groove width direction and adjust the vertical height with respect to the groove bottom.Furthermore, the hooks at both ends of the receiving arm supporting the lower surface of the sewer pipe are locked to the upper ends of the fixing piles and screwed into the hooks. Sewage while adjusting the gap between the hook part and the upper end of the fixing pile with the adjusting bolt By finely adjusting the height position of the conduit, after that the pressing arm is brought into contact with the upper surface of the sewer pipe and both the receiving arm and the pressing arm are nailed and fixed to the fixing column,
The sewer pipe is maintained with high accuracy to prevent pipe sag, and the positioning of the sewer pipe in the width direction of the excavation groove and the vertical height positioning adjustment can be performed with high accuracy and efficiency.

Further, in the pipe dripping prevention method, a plurality of staking plates are arranged at a predetermined interval in the longitudinal direction in the excavation groove, and the sewer pipe is positioned on the sizing plate in the width direction of the excavation groove. Placed on both sides in the width direction of the sewer pipe, a plurality of pairs of fixing pairs are driven into the groove bottom so as to sandwich the sewer pipe, and hooks are provided at both ends, and A substantially U-shaped receiving arm having an adjusting bolt attached to a hook portion is circulated from below the sewer pipe, and the hook portion is abutted and locked to an upper end portion of the fixing pile to support the sewer pipe from below. At the same time, the height of the sewer pipe supported by the receiving arm is finely adjusted by adjusting the gap width between the hook portion and the upper end portion of the fixing pile with the adjusting bolt, and then the inverted U-shape. Attach and fix the presser arm from above the sewer pipe Both the receiving arm and the pressing arm are fixed to the pile, and the sewer pipe is sandwiched between the receiving arm and the pressing arm with high precision to support the pipe without sagging, and the vertical height of the pipe body, Positioning adjustment in the groove width direction is also accurate, and efficient construction is possible.

(3) Examples Hereinafter, preferred examples of the present invention will be described with reference to the accompanying drawings.

1 to 3 show a drainage prevention device 10 for a sewer pipe according to a first embodiment of the present invention.

In the figure, a pipe dripping prevention device 10 for a sewer pipe is shown as an excavation groove 12
A tensioning plate arranged at predetermined intervals in the longitudinal direction of the groove bottom portion 14 of
16 and a sewer pipe 18 of an arbitrary diameter, which is positioned and mounted on the upper surface of the tension plate 16 in the width direction of the excavation groove 12.

The tensioning plate 16 is formed of an end material such as a back plate and is fixed to the pair of piles 20 and 20 driven into the groove bottom portion 14, and the sewer pipe 18 is mounted on the tensioning plate 16. The embedding height position is set while being sequentially joined.

The sewer pipe 18 comprises a PVC pipe having a diameter of 150, 200, 250 mm and a length of about 400 cm, or a fume pipe, and both sides of the sewer pipe 18 mounted on the tension plate 16 are sandwiched. In the groove bottom
A pair of fixing stakes 22, 22 are installed in the longitudinal direction of the trench 12 in the
It is driven in at intervals of about 0 cm.

In order to support the sewer pipe 18 from below at the position of the pair of fixing piles 22, 22, as shown in FIG. 4,
A receiving arm 24 formed by bending a slender plate into a substantially U shape using metal or plastic as a material is mounted.

The receiving arm 24 is provided with U-shaped hook portions 26, 26 that are engaged with the upper ends of the fixing piles 22, 22 at both ends thereof, and the hook portions 26, 26 have upper ends of the fixing piles 22. Adjusting bolts 28, 28 for adjusting the gap between the adjusting bolts 28, 28 are screwed together, and the lower ends of the adjusting bolts 28, 28 are supported by the seats 30, 30 at the upper ends of the fixing piles 22, 22. By the normal rotation or reverse rotation of the adjusting bolts 28, 28, the hook portions 26, 26 are vertically moved in a state of being engaged with the upper ends of the fixing piles 22, 22, and the sewer pipe 18 supported by the receiving arm 24. The height can be finely adjusted by about 1 to 2 cm, and after the adjustment is completed, the nail 32 is driven through the nail hole on the outside of the hook portions 26, 26 to lock the hook portions 26, 26 to the fixing piles 22, 22. .

The hooks 26, 26 may not be able to be directly locked to the upper ends of the fixing piles 22, 22 depending on the condition of the site. At that time, as shown in FIG. After being turned by 90 degrees 34, 34, the hooks 26, 26 are bent at the ends and the adjusting bolts 28, 28 are screwed into the fixing piles 22,
It becomes easy to attach to 22.

FIG. 6 shows a pressing arm 36 for fixing the sewer pipe 18 supported by the receiving arm 24 by pressing it from above. Like the receiving arm 24, the holding arm 36 is formed of a slender plate made of metal or plastic and is bent in an inverted U shape. Both lower ends of the holding arm 36 are turned 90 degrees to lock nail holes. Has been opened. Then, as shown in FIGS. 1 and 2, the pressing arm 36 is pressed against the upper surface of the sewer pipe 18 supported by the receiving arm 24 to fix both lower ends thereof to the fixing piles 22, 22.
It is locked with a nail 32.

As mentioned above, the pipe dripping prevention device 10 for the sewer pipe is
While mounting the sewer pipe 18 on the tensioning plate 16 arranged in 14 and sequentially coupling it, the fixing piles 22, 22 are driven into the sewer pipe 18 at intervals of about 200 cm on both sides of the sewer pipe 18, Hook portions 26, 26 at both ends of the receiving arm 24 supported on the lower surface in a circular manner are locked to the upper ends of the fixing piles 22, 22, and the height is finely adjusted with the adjusting bolts 28, 28, and fixed with the nail 32, Next, the upper surface of the sewer pipe 18 is pressed by the presser arm 36 and fixed to the fixing piles 22 and 22 with the nail 32, and then 20 cm above the sewer pipe 18 in the groove bottom portion 14.
Sand is laid up to the ground, and the excavated soil is backfilled in the excavation groove 122, and the sewer pipe 18 is nailed to the fixing pile 22 with an appropriate interval between the receiving arm 24 and the pressing arm 36. By sandwiching, the underground sewer pipe 18 is maintained accurately and does not generate pipe dripping, and positioning adjustment is also accurate and efficient construction is possible.

Next, in the pipe dripping prevention method of the sewer pipe, the excavation groove 12
Tension plates 16 are arranged at predetermined intervals on the groove bottom 14 of the sewer pipe, and sewer pipes 18 are positioned on the upper surface in the groove width direction and sequentially mounted while being mounted. Fixing columns 22, 22 are driven into the sewer pipe 18 at appropriate intervals.
The lower surface of the support bolt 24 is supported by a substantially U-shaped receiving arm 24, and the hook portions 26, 26 at both ends are engaged with the upper ends of the fixing piles 22, 22 and screwed to the hook portions 26, 26. , 28 with receiving arm 24
Of the sewer pipe 18 by finely adjusting the height of the sewer pipe, and then fixing the inverted U-shaped presser arm 36 to the upper surface of the sewer pipe 18 to fix both ends to the fixing piles 22 and 22. Then groove bottom 14
Sand is laid on the ground to backfill the excavated soil.
The sewer pipe 18 buried in the ground receives the receiving arm 24 and the holding arm
With 36, the pipe is not dripping because it is maintained accurately, the sewer pipe can be positioned and the height can be adjusted accurately, and efficient construction can be performed.

III. Effects of the Invention As described above, the pipe dripping prevention device for a sewer pipe according to the first aspect of the present invention includes a tensioning plate for arranging the sewer pipe at the bottom of the excavation trench, and this tensioning. While adjusting the positioning in the groove width direction on the upper surface of the plate, multiple sets of fixing piles that are driven into both sides of the sewer pipe to be mounted and jointed, and on the upper end of the fixing pile that supports the lower surface of the sewer pipe Since the receiving arm having the hook portion with the adjusting bolt to be engaged and the pressing arm for pressing and fixing the upper surface of the sewer pipe are provided, the sewer pipe is simply wrapped with the raw wire and locked to the pile. Compared with the case, the sewer pipe can be accurately maintained at a predetermined width and height position by the receiving arm and the pressing arm, and the sewer pipe does not sag.

In addition, there is no deterioration in water flow due to the accumulation of foreign substances in the sewer pipe, breakage leakage, etc., positioning of the sewer pipe in the basement and adjustment of the vertical height can be performed accurately, and efficient work can be performed without reworking.

Next, according to a second aspect of the present invention, in the method for preventing sewerage of a sewer pipe according to the present invention, a claw plate is provided at a groove bottom portion of an excavation groove at a predetermined interval, and a groove width is provided on an upper surface of the claw plate. The sewer pipe is mounted and jointed while adjusting the positioning in the direction and the vertical height,
After that, the height of the receiving arm that supports the lower surface of the sewer pipe is locked to the multiple sets of fixing piles that are driven into both sides of the sewer pipe so that the height of the receiving arm can be adjusted, and the pressing arm that is in contact with the upper surface is also locked. The vertical height of the sewer pipe,
Positioning adjustment in the groove width direction and the like can be performed with high efficiency and high accuracy.

Therefore, there is almost no reworking work after refilling once and then digging again, and the laying work of the sewer pipe is efficient
Moreover, it can be safely constructed.

[Brief description of drawings]

FIG. 1 is a partially enlarged perspective view showing a pipe dripping prevention device for a sewer pipe according to an embodiment of the present invention. FIG. 2 is a front view of the pipe dripping prevention device, and FIG. 3 is a side view thereof. FIG. 4 is a front view in which a receiving arm is locked to a fixing pile, FIG. 5 is a front view in which a receiving arm of another embodiment is locked to the fixing pile, and FIG. 6 is a presser arm. FIG. 7 is a plan view of the sewer pipe supported by the pipe dripping prevention device. 10 …… Sewer pipe dripping prevention device, 12 …… Excavation groove, 14…
… Groove bottom, 16 …… Clamp plate, 18 …… Sewer pipe, 22 …… Fixing pile, 24 …… Receiving arm, 26 …… Hook part, 28 …… Adjusting bolt, 36 …… Pressing arm

Claims (2)

[Claims] 1. A tensioning plate arranged at a predetermined interval in the longitudinal direction in the excavation groove, and a sewer pipe placed on the tensioning plate while positioning in the excavation groove width direction. A pair of fixing piles, which are on both sides in the width direction of the sewer pipe, are partially driven into the groove bottom of the excavation groove so as to sandwich the sewer pipe, and the sewer pipe is supported from below, and both ends are supported. A substantially U-shaped receiving arm having a hook portion on its part, and an inverted U-shaped holding arm for pressing and fixing the sewer pipe from above. The height position of the sewer pipe supported by the receiving arm is adjusted by abuttingly locking the upper end of the fixing pile and adjusting the gap width between the hook and the upper end of the fixing pile. Sewage prevention device for sewer pipes, in which adjustment bolts for 2. A plurality of siding plates are arranged at a predetermined interval in the longitudinal direction in the excavation trench, and a sewer pipe is placed on the stencil plate while positioning in the excavation trench width direction, Plural pairs of each pair of fixing piles are driven into the bottom of the excavation groove on both sides in the width direction of the sewer pipe so as to sandwich the sewer pipe, and hooks are provided at both ends, and the hook is provided. A substantially U-shaped receiving arm having an adjusting bolt attached to its portion is circulated from below the sewer pipe, and the hook portion is abutted and locked to the upper end of the fixing pile to support the sewer pipe from below. Then, an inverted U-shaped pressing arm is attached and fixed from above the sewer pipe, and the sewer supported by the receiving arm is adjusted by adjusting the gap width between the hook portion and the upper end of the fixing pile with an adjusting bolt. Sewage characterized by adjusting the height of the pipe Tube sauce prevention method of the tube.