JPH10121566A - Device for lining rectangular lining pipe - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve the usability by disposing a frame in a lining pipe, mounting a receiving seat to the outside of the frame, placing a wale member over the receiving seat, and providing a reaction member on the frame. SOLUTION: A rectangular lining pipe R is constructed in an existing sewerage duct P. Next moving rods 2, receiving seats 3, and reaction members 5 are mounted to a frame 1, and the moving rods 2 and reaction members 5 are moved rearwards. And wale members 4 are disposed on the lower side of the pipe R to fit the members 4 in the seats 3 of side members 10 at the lower side of the frame 1. The wale members 4 are disposed on the seats 3 of the members 10 on the upper side and on both sides of the frame 1. A hole for the member 5 is drilled at the upper side and both sides of the pipe R and then the member 5 is moved outwards to press its tip against the wall surface of the duct P. Thus a lining device having good usability can be formed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to the installation of a lining pipe installed as a lining layer on the inner surface of an existing sewer for the rehabilitation of an existing sewer such as a sewer pipe, a water pipe and a gas pipe. The present invention relates to a support device that is inserted and installed in a so-called rectangular lining tube having a rectangular cross section to prevent deformation of the rectangular lining tube.

[0002]

2. Description of the Related Art The present applicant has previously filed Japanese Patent Application No. 7-91650.
Proposed a lining construction method and equipment for a cross-section culvert. That is, in the duct with the irregular cross section, the joining mechanism is attached to the flexible frame that follows the irregular cross section, that is, the rectangular cross section, and the belt-like body formed of a long plate and having a plastic deformation function is spirally formed. And a tubular body is manufactured by engaging the side edges of the strips adjacent to each other, and the inner peripheral surface of the conduit is lined with the tubular body. According to this prior art, a lining pipe having a rectangular cross section can be automatically manufactured,
Since the lining tube is additionally formed with a band-shaped member newly supplied in front of the rectangular running tube to be manufactured, the length can be increased, and this is epoch-making.
Then, following this lining tube insertion and installation process,
The gap between the existing pipe and the lining pipe is filled with cement milk as a closing material for the gap. Due to the filling of the cement milk, the volume density of the lining pipe is relatively small, and a floating phenomenon occurs. As a countermeasure against this, installation of a mat for preventing floating, or loading of heavy objects into the lining pipe, etc. Will be taken. Furthermore, as the filling pressure of the cement milk increases, the lining tube is deformed, which is harmful. As a countermeasure, at present, the thickness of the lining pipe and, consequently, the thickness of the band-shaped member are increased to increase rigidity, but it is uneconomical in terms of material cost and construction efficiency.

[0003]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned circumstances, and is intended to counteract the filling pressure of cement milk which is inserted and installed inside a rectangular lining tube and is filled around the outer periphery of the lining tube. The present invention provides a suitable rectangular lining pipe support device, and is easy to handle.
The purpose is to obtain a lining pipe support device. Another object of the present invention is to obtain a support device that is effective for preventing the rectangular lining tube from rising.

[0004]

Means for Solving the Problems In order to achieve the above object, the rectangular lining pipe support device of the present invention has the following configuration. That is, the main configuration is such that in the lining pipe R having a rectangular cross section installed on the inner surface of the underground burial pipe P, the lining pipe R is inserted into the lining pipe R and installed in the gap between the burial pipe R and the lining pipe R. A supporting device for countering the filling pressure of cement milk to be injected, comprising a square frame 1 and a receiving seat 3 mounted on the outside of a side of the frame. A bulging member 4 that abuts on the inner surface of the lining tube to the receiving seat 3 of the frame 1 and a reaction force member 5 that is disposed on the upper side and both side sides of the frame 1. It is characterized by. The above configuration is characterized in that the reaction force members 5 are arranged on both side portions of the frame 1. Furthermore, frame 1
Is characterized in that the side member is extensible and a telescopic drive device is arranged on the side of the frame 1.

(Operation) In use, the frame 1 is erected at a predetermined interval in the rectangular lining pipe R, and the abdominal member 4 is bridged over the receiving seat 3 of the frame 1. The circumferential length of the frame 1 or the advance / retreat of the seat 3 is adjusted, and the belly member 4 is brought into contact with the inner surface of the lining tube R. The reaction force member 5 penetrates the lining pipe R from the upper side and both side sides of the frame 1, and makes its tip abut on the inner wall surface of the underground pipe P. In the injection of the cement milk into the gap between the underground pipe P and the lining pipe R, the support device prevents the lining pipe R from being deformed. Further, the floating of the lining pipe R during the injection of the cement milk is prevented by the reaction force member 5.

[0006]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view showing a rectangular lining pipe supporting apparatus according to an embodiment of the present invention. (First Embodiment) FIGS. 1 to 4 show an apparatus (a first embodiment) for supporting a rectangular lining pipe. That is, FIGS. 1 and 2 schematically show the whole of the support device S, and FIGS. 3 and 4 show the configuration of each part of the support device S.
In these figures, P indicates a sewer pipe, and R indicates a lining pipe.

The support device S is mounted on a rectangular frame 1, a reciprocating rod 2 extending outward from the upper side and both side parts of the frame 1, and a tip of the reciprocating rod 2. The frame 1 includes a receiving seat 3 fixed to a lower side of the frame 1 and a belly member 4 bridged between the receiving seats 3. Further, a lining pipe R is provided between the upper side and both sides of the frame 1.
, A reaction force member 5 extending outward.

Hereinafter, the detailed structure of each part will be described. Frame 1 Frame 1 has a fixed width and a predetermined rigidity.
It is composed of four linear side members 10 formed in a side shape and forming a side portion, and a corner member 11 arranged at a corner and connecting these side members 10 in a fitting manner. More specifically, the side member 10 has a rectangular box-shaped cross section, and has a straight rod shape. A screw cylinder 13 for a reaction force member is fixed in the middle of the side members 10 on the upper side and both side parts, and a screw cylinder 14 for an advancing and retracting rod is fixed near the end. Corner member 1
1 includes a quadrant connecting member 11a and joints 11b on both sides of the connecting member 11a, and the end of the side member 10 is fitted and fixed to the joint 11b. The connecting member 11a
Can take a triangular shape or any other appropriate shape. In this frame 1, the corner member 11 is eliminated, and the side member 10 is removed.
Can be formed by directly joining the end portions of each other.
In this embodiment, the frame 1 has a square shape, but may have a rectangular shape.

[0009] reciprocating rod 2 advancing and retracting rod 2 is mounted with a screwing mechanism to the side member 10 of the frame 1. That is, the advancing / retracting rod 2 has a screw 2a screwed on the outer periphery and a tip portion formed into a straight cylindrical shape 2b, and is screwed with a screw cylinder 14 fixed to the side member 10 with the screw 2a. Move forward and backward.
A rotating spanner hook 2c is formed at the base end of the reciprocating rod 2.

[0010] seat 3 seat 3 is composed of a fixed seat 3A and the movable seat 3B, with the grooved steel, it is mounted towards the recess 16 outwardly. The fixed seat 3A is directly attached to the lower side of the frame 1, and the movable seat 3B is mounted on the upper side and both sides of the frame 1 via the reciprocating rod 2. The movable seats 3B at the upper side and both side sides of the frame 1 are inserted into a boss hole 17 formed at the center thereof, and the straight cylindrical portion 2
b is rotatably inserted. As shown in FIG. 4, a further example of the mounting relationship between the movable seat 3 </ b> B and the forward / backward rod 2 is that a flange 2 d is protruded from a cylindrical portion 2 b at the tip of the forward / backward rod 2. A fixed cylinder 18 that holds and fixes the body 2 d while allowing only rotation is attached with a fixing bolt 19. This prevents the seat 3 from falling off.

[0011] wale member 4 wale member 4 is made of an elongated body of a rectangular cross-section, Mari included fitted into the recess 16 of the seat 3 is supported. The belly member 4 is preferably made of aluminum in order to ensure light weight and rigidity.

Reaction force member 5 (see FIG. 3) The reaction force member 5 is mainly composed of a long screw rod 5a, and the screw cylinder 13 of the side member 10 on the upper side and both side sides of the frame 1.
Is screwed on. A spy hook 5b for rotation is formed at the base end of the reaction force member 5. The reaction force member 5 moves forward and backward by the rotation thereof, and the tip portion penetrates the lining pipe R and abuts on the wall surface of the sewer P.

Lining Work in Sewer P The lining work performed using the lining pipe support device S of this embodiment will be described. FIG. 5 shows an outline of the lining work. In this construction work,
An example of application to a so-called box culvert P having a rectangular cross section as an underground sewer is shown. In the figure,
Q1 is an upstream human hole, and Q2 is a downstream human hole.

Hereinafter, description will be given based on the construction procedure. (1) A lining pipe R with a rectangular cross section is installed in the existing sewer pipe P.
To construct. Prior to this construction, the opening of the attachment pipe to the sewer pipe P is closed. Lining tube R with rectangular cross section
Of the present invention is based on the Japanese Patent Application No. 7-9165 proposed earlier by the present applicant.
It is performed with the device of No. 0, but is not limited to this and does not exclude other appropriate methods. Thereafter, both ends of the lining pipe R are subjected to seaming.

(2) The present support device S is incorporated into the lining pipe R. That is, the forward / backward rod 2, the receiving seat 3, and the reaction force member 5 are mounted on the frame 1, and the forward / backward rod 2 and the reaction force member 5 are retracted. First, the protruding member 4 is arranged on the lower side of the lining pipe R, and fitted to the receiving seat 3 of the side member 10 on the lower side of the frame 1 to obtain a fixed position state. Thereafter, the protruding members 4 are arranged on the receiving seats 3 on the upper side and both side sides of the frame 1.

(2A) Simultaneously with or before the above step,
Holes for the reaction force member 5 are formed in the upper side and both sides of the lining tube R.

(2B) The reaction member 5 is fed out and its tip is pressed against the wall of the sewer pipe P.

(3) Cement milk M is injected and filled under a predetermined pressure into the gap between the sewer pipe P and the lining pipe R via a seaming work.

(4) When the filling of the cement milk M is completed, the reaction member 5 is pulled out by the time of the consolidation.

(5) After the cement milk M is fixed (or when a predetermined strength is developed), the support S is dismantled. Thus, the installation of the lining pipe R in the sewer pipe P is completed.

[0021] The lining pipe support device S of the present embodiment.
Is used as described above, and has the following effects. The deformation of the lining tube R due to the injection pressure of the cement milk M filled into the outside of the lining tube R is prevented, and therefore, the thickness of the lining tube R can be reduced,
Significant economic benefits can be obtained. The reaction force member 5 can prevent the lining pipe R from rising during the operation of injecting the cement milk M. The reaction members 5 arranged on both sides are lined with the lining pipe R in the sewer P.
Of the cement milk M, and has a function of preventing left and right sway when the cement milk M is injected. The abutment of the protruding member 4 can be adjusted by the reciprocating rod 2. The frame 1 allows a worker to pass through the hollow portion, which is convenient for work.

(Second Embodiment) FIGS. 6 and 7 show another embodiment (a second embodiment) of the apparatus for supporting a rectangular lining pipe according to the present invention. In the figure, the same reference numerals are given to members equivalent to those in the above embodiment. The shoring device S1 of this embodiment is characterized by having a diameter expanding mechanism.

The side member 10A of the frame 1 comprises a small-section tube 22 having a rectangular cross-section, and a large-section tube 23 into which the small-section tube 22 is slidably inserted.
The screw cylinder 13 for the reaction member 5 is attached to 2, and the receiving seat 3 is directly fixed to the outside of each of the tubes 22 and 23. Therefore, the forward / backward rod 2 is abolished. Frame 1
In the side portion, horizontal hydraulic cylinders 25 and 26 are arranged on opposite sides at the upper side and the lower side, and vertical hydraulic cylinders 27 and 26 are disposed at the side sides.
28 are arranged on opposite sides of each other.

(Expanding Operation of Main Supporting Apparatus S1) The supporting apparatus S1 can be expanded in diameter by extending the side member 10A of the frame 1. That is, the small-section tube 22 and the large-section tube 23 are slidable, and the rods 25a, 26 of the hydraulic cylinders 25, 26, 27, 28 are slidable.
The extension of the side members 10A of the frame 1 is achieved by the extension of a, 27a and 28a.

Since the support apparatus S1 for a rectangular lining pipe of the present embodiment is used as described above, it has the following effects. The frame 1 is expandable and contractable, and can correspond to the size of various rectangular lining tubes.
In addition, the passage of the worker becomes possible through the hollow portion, which is convenient for the work. At the same time, the abutment of the bulging member 4 can be adjusted. The reaction force member 5 can prevent the lining pipe R from rising during the operation of injecting the cement milk M.

The present invention is not limited only to 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 frame 1, the polygon is not limited to an octagon, but may have another shape, for example, a quadrangle or a hexagon. In the frame 1, the telescopic relationship between the corner member 10 and the side member 11 can be reversed. A mode in which the frame 1 is fixed and the forward / backward adjustment is performed by the forward / backward rod 2 can be adopted. Alternatively, the diameter of the frame 1 can be freely increased,
It is possible to adopt a mode in which the advancing / retracting rod 2 is fixed or the advancing / retreating rod 2 is eliminated and the receiving seat 3 is directly fixed to the frame 1.

[0027]

According to the apparatus for supporting a lining pipe of the present invention, the lining pipe is prevented from being deformed due to the injection pressure of the cement milk filled into the outside of the lining pipe, and thus the wall thickness of the lining pipe is reduced. And provide significant economic benefits. Further, the diameter of the frame is freely expandable, so that it can easily cope with a change in the diameter of the lining pipe. It is also effective in preventing the lining pipe from floating.

[Brief description of the drawings]

FIG. 1 is a front view showing an entire embodiment of a rectangular lining pipe support device of the present invention.

FIG. 2 is a longitudinal sectional view (a sectional view taken along line II of FIG. 1).

FIG. 3 is a partially enlarged sectional view of a frame.

FIG. 4 is a structural view showing another embodiment of the seat.

FIG. 5 is a view showing the procedure of construction.

FIG. 6 is a partial cross-sectional front view showing another embodiment of the rectangular lining pipe support device of the present invention.

FIG. 7 is a diagram showing a side configuration thereof.

[Explanation of symbols]

R: rectangular lining pipe, S, S1: support device, 1: frame, 2: forward / backward rod, 3: seat, 4: belly member, 5:
Reaction member, 10 ... side member

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Naoki Kitahashi 75, Nojiri, Ritsuto-cho, Kurita-gun, Shiga Prefecture Inside Sekisui Chemical Co., Ltd. (72) Yasushi Kitayama 75 Nojiri, Ritsuto-cho, Kurita-gun, Shiga Prefecture Sekisui Chemical Co., Ltd.

Claims (3)

[Claims] 1. A lining pipe having a rectangular cross section installed on the inner surface of an underground sewer and filling pressure of cement milk inserted and installed in the lining pipe and injected into a gap between the underground sewer and the lining pipe. A frame 1 having a rectangular shape, a seat 3 mounted on the outside of a side of the frame, and a seat 3 of the frame 1 erected at an interval. A bulging member 4 abutting on the inner surface of the lining pipe and a reaction force member 5 disposed on the upper side and both side parts of the frame 1. Shoring equipment. 2. The rectangular lining pipe support device according to claim 1, wherein the reaction force members 5 are arranged on both side portions of the frame 1. 3. The rectangular lining tube according to claim 1, wherein the side members of the frame 1 are extendable and contractible, and a telescopic drive device is provided on a side portion of the frame 1. Shoring equipment.