JPH07186259A - Lining material for collecting sewer and application method for the same - Google Patents

Abstract

PURPOSE:To prevent groundwater and sediment from entering through the joint of a collecting sewer. CONSTITUTION:A lining material is composed of a flange 8 and a felt tube 9, which contain a setting resin, and a heat resistant film tube 10. The lining material is inserted into an inversion guide pipe 2 of a packer 1; the flange 8 of the lining material is attached on the surface of the packer 1. The packer 1 is moved to the joint 22 of the a collecting sewer 21. Compressed air is introduced into the packer 1 to expand it, and the flange 8 is fixed to the joint 22. Compressed air is introduced into the inversion guide pipe 2; the lining material, which is inverted, is inserted into the collecting sewer 21. The setting resin in the flange 8 and the felt tube 9 is cured, and the joint 22 of the collecting sewer 21 is coated with a synthetic resin.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lining material for a mounting pipe which prevents intrusion of water or the like at a main pipe connecting portion of a mounting pipe for sewerage, and a construction method thereof.

[0002]

[Background Art] When receiving rainwater flowing from roads or residential areas, or receiving sewage generated from homes, factories, etc., it has an inner diameter of about 150 mm to 200 mm for connecting to the main sewer. A mounting tube is used. As for the main sewer pipes, ceramic pipes, Hume pipes, and vinyl chloride pipes are used for small diameter pipes with a diameter of about 250 mm to 600 mm, and reinforced concrete pipes are used for medium and large diameter pipes. Has been done.

When a mounting pipe is joined to a main pipe made of a ceramic pipe, a Hume pipe or the like, a joint is never used, and a hole corresponding to the diameter of the mounting pipe is opened above the center line of the main pipe. , Insert the tip of the mounting pipe into this hole, 45 degrees or
The mounting pipe was laid so that it would be 90 degrees. The gap between the mounting pipe and the main pipe is filled with mortar or the like to prevent groundwater from entering the main pipe through the main pipe connecting portion of the mounting pipe.

[0004]

The main pipe connecting portion of the above-mentioned mounting pipe prevents groundwater from entering the main pipe by closely adhering the main pipe and the mounting pipe with mortar at the beginning of construction. With the passage of time, due to the vibration of passing vehicles and the influence of earthquakes, etc.
Groundwater will come in through the main pipe connection of the mounting pipe.

[0005] When the gap between the main pipe and the mounting pipe becomes further large, the earth and sand around the main pipe connecting portion of the mounting pipe intrudes into and accumulates in the main pipe together with the groundwater, and the flow-down capacity of the main pipe is insufficient. It had the disadvantage of causing

[0006] Further, if earth and sand enter with groundwater,
There is also a disadvantage that a cavity is formed around the main pipe connecting portion, sometimes causing a depression of the road surface to damage other structures.

The present invention has been made in order to solve the above disadvantages, and provides a mounting pipe lining material and a construction method thereof, which can surely prevent intrusion of groundwater or earth and sand from the main pipe connecting portion of the mounting pipe. It is intended to be provided.

[0008]

A fitting pipe lining material according to the present invention is provided with a brim at one end thereof having a hole corresponding to the diameter and shape of the main pipe connecting portion of the fitting pipe and having a curable resin attached or impregnated therein. , A felt tube fixed to the hole of the collar and impregnated with a curable resin, and a heat-resistant film tube formed longer than the felt tube and covering the felt tube. And

Further, in the method for applying a lining material for a mounting pipe according to the present invention, a pressurized fluid supply hose having one or a plurality of fluid outlets is inserted inside the lining material, and the fluid outlet is provided with a heat-resistant film. It is arranged on the rear side of the tube, and the shape of the lining material is changed so that the cross-sectional area becomes small. One end of the lining material is attached to the surface of the packer, and the air is supplied to the rear end penetrating the inside of the packer. After inserting into the reversing guide pipe having a mouth and a pressurized fluid supply hose insertion port, attaching the collar of the lining material to the surface of the packer, and moving the packer to the main pipe connection part of the mounting pipe, The pressurized air is supplied to the inside of the packer to expand the packer, the collar of the lining material is fixed to the main pipe connecting portion of the mounting pipe, and the pressurized air is supplied from the air supply port of the reversing guide pipe to the lining material. Invert and insert into the mounting pipe,
It is characterized in that a heated and pressurized fluid is supplied from a pressurized fluid supply hose to heat and cure the inverted felt tube and collar.

Another method of applying the mounting pipe inner lining material according to the present invention is to use the drain hoses by penetrating through the inner lining material.
And a shape of the lining material is changed so that the cross-sectional area of the lining material is reduced. One end of the lining material is attached to the surface of the packer, and the reverse guide pipe has an air supply port at the rear end inserted through the packer. , And insert the collar of the lining material into the packer.
Installed on the surface, pull out the rear end of the drain hose for a certain length from the reversing guide pipe, move the above packer to the main pipe connection part of the mounting pipe, and then supply pressurized air to the inside of the packer. , The collar of the lining material is fixed to the main pipe connection part of the mounting pipe, pressurized air is supplied from the air supply port of the inversion guide pipe, the lining material is inverted and inserted into the mounting pipe, and the inverted felt tube It is characterized in that the suction port of the drain hose is held in a state of protruding from the film tube inversion surface until the curable resin of the tube and the collar is cured.

[0011]

In the present invention, a felt tube having a brim having a curable resin attached or impregnated at its end and impregnated with the curable resin, and a heat-resistant film tube covering the outer surface of the felt tube are provided. Using a lining material consisting of
Insert a pressurized fluid supply hose inside this liner,
Change the shape of the lining material so that the cross-sectional area is small, and attach the pressurized fluid supply hose to the lining material.

This lining material is inserted into the inversion guide pipe attached to the packer, and the collar of the lining material is attached to the surface of the packer. After moving the packer with this lining material to the main pipe connection part of the mounting pipe, pressurized air is supplied to the inside of the packer to expand the packer, and the collar of the lining material is connected to the main pipe of the mounting pipe. Fixed to the section.

Thereafter, pressurized air is supplied from the air supply port of the inversion guide pipe, and the felt tube and the heat-resistant film tube of the lining material are inverted and inserted into the mounting tube by the pressure of the pressurized air, and the felt tube is inserted. -Press the lug against the inner wall of the mounting tube. Then, the heated pressurized fluid is supplied to the pressurized fluid supply hose, and the heated pressurized fluid is ejected from the fluid outlet of the pressurized fluid supply hose to heat the curable resin of the felt tube and the collar. Then, it is cured, and the main pipe connecting portion of the mounting pipe is covered with a synthetic resin.

Further, in another construction method of the present invention, a drain hose is inserted into the inside of the lining material, the lining material is changed in shape so as to have a small cross-sectional area, and the inverted material is attached to the packer. Insert it into the guide pipe, attach the collar of the lining material to the surface of the packer, pull out the rear end of the drain hose from the reversing guide pipe, then invert and insert the lining material into the mounting pipe in the same manner as above, and then remove the felt. Press the tube against the inner wall of the mounting tube.

At this time, the suction port of the drain hose is projected from the reverse surface of the film tube, and is held until the curable resin of the felt tube and the collar is cured at room temperature.
While this drain hose has the original fluid discharge function,
Cover the main pipe connection of the mounting pipe with synthetic resin.

[0016]

1 is a sectional view showing a lining material and a packer used in one embodiment of the present invention. As shown in the figure,
Inverter guide pipe 2 for the packer-1 made of flexible rubber
And an air supply hose 3 are attached. The inversion guide pipe 2 penetrates one side surface of the packer-1 and has a tip end portion fixed to a position of a hole provided on the surface of the packer-1. An air supply hose is provided at the rear end of the inversion guide pipe 2.
It has an air supply port 4 to which a mouth 5 is connected and a pressurized fluid supply hose insertion port 6 to which a seal portion is attached.

As shown in the perspective view of FIG. 2, the lining material 7 is a heat-resistant film tube that covers the collar 8 made of felt, the felt tube 9 joined to the collar 8 and the outer surface of the felt tube 9. It is formed from the ridge 10. The collar 8 and the felt tube 9 are made of synthetic resin woven fabric or non-woven fabric impregnated with a thermosetting resin, and the collar 8 has a size corresponding to the diameter and shape of the main pipe connecting portion of the mounting pipe to be installed in the center. An elliptical hole 11 is formed. Felt tube 9
Has an outer diameter of 90 to 100% with respect to the inner diameter of the mounting pipe, and the length is formed as short as about 10 to 50 cm according to the inner diameter of the mounting pipe.
It is bonded to the brim 8 by heating. The heat-resistant film tube 10 is formed longer than the felt tube 9.

A pressurized fluid supply hose 12 is inserted into the lining material 7. The pressurized fluid supply hose 12 has a fluid outflow portion 13 having one or a plurality of fluid outflow ports for discharging a fluid in an intermediate portion, and the fluid outflow portion 13 is located behind the heat-resistant film tube 10. Are arranged as follows.
Then, as shown in FIG. 3, the felt tube 9 and the heat-resistant film tube 10 are flattened by a molding roller or the like so as to have a small cross-sectional area, or they are bent to bend the felt tube 9 and the heat-resistant film tube 10. -Pressurized fluid supply hose 1 with hose 10
Fix 2

The operation of lining the lining material 7 formed as described above on the inner surface of the connecting portion 22 of the mounting pipe 21 mounted on the main pipe 20 will be described with reference to the construction process diagrams of FIGS. 4 to 7. To do.

First, as shown in FIG.
An elbow 25, which has a TV camera 24 housed in the housing 23, is connected to a self-propelled vehicle 26 in the pipe to drive the main pipe 20 to the position of the mounting pipe 21. When the elbow 25 reaches the position of the mounting pipe 21, the in-pipe self-propelled vehicle 26 rotates the elbow 25 to position the tip of the elbow 25 with respect to the mounting pipe 21. In this state, pressurized air is supplied from the air hose 26, and the film tube 23 is reversed and inserted into the mounting tube 21, while the TV camera 24 displaces the connection portion 22, dismounts, and the diameter of the mounting tube 21. Check the mounting angle. The inside of the mounting pipe 21 may be examined by inserting a TV camera from the rainwater basin at the end of the mounting pipe 21.

After the above-mentioned investigation is completed, as shown in FIG. 1, the lining material 7 to which the pressurized fluid supply hose 12 is fixed is inserted into the inversion guide pipe 2 attached to the packer-1, and the collar is inserted. 8 is temporarily attached to the surface of the packer-1. The packer-1 is connected to the in-pipe self-propelled vehicle 26 in the manhole, and both ends of the pressurized fluid supply hose 12 are connected to a heated pressurized fluid source such as an external boiler. Connect to the device.

After that, the in-pipe self-propelled vehicle 26 is run in the main pipe 20, and when the packer-1 reaches the connecting portion 22 of the mounting pipe 21, as shown in FIG. The packer-1 is rotated by the rotating device of the self-propelled vehicle 26 in the pipe to perform circumferential positioning, and the collar 8 is aligned with the position of the connecting portion 22.

Next, pressurized air is sent into the packer-1 from the air supply hose 3 attached to the packer-1,
1 is inflated and the collar 8 is connected to the connecting portion 2 as shown in FIG.
Fix at the end of 2.

Thereafter, pressurized air is sent into the reverse guide pipe 2 from the air supply hose 5 attached to the reverse guide pipe 2. The felt tube 9 of the lining material 7 and the heat-resistant film tube 10 are reversely inserted into the mounting pipe 21 by the pressure of this pressurized air, and the brim 8 and the felt tube 9 are connected to each other as shown in FIG. 22 and the end of the attachment pipe 21 are closely attached. By reversing and inserting the felt tube 9 and the heat-resistant film tube 10, the pressurized fluid supply hose 12 also advances in the mounting pipe 21, and the fluid outflow portion 13 of the pressurized fluid supply hose 12 and the connection portion. Move to the vicinity of 22.

While maintaining this state, the heating and pressurized fluid source is operated to send steam or hot water to the pressurized fluid supply hose 12. A part of the steam or the like sent from the pressurized fluid supply hose 12 is jetted from the fluid outflow portion 13 into the space formed by the heat-resistant film tube 10 and the inversion guide pipe 2, and the other steam or the like is supplied by the pressurized fluid. Circulate between the hose 12 and the source of heated and pressurized fluid. By thus circulating steam or the like, the collar 8 and the felt tube 9 can be heated at a predetermined temperature.

The heating temperature is maintained until the thermosetting resin impregnated in the collar 8 and the felt tube 9 is cured. When the thermosetting resin has hardened after a lapse of a predetermined time, the circulation of steam or the like is stopped, the pressurized air sent to the reversing guide pipe 2 and the packer-1 is stopped, and the pressurized air inside is removed. By removing this pressurized air, the packer-1 contracts, and the heat-resistant film tube 10 separates from the hardened felt tube 9. Then, the pucker-1 is pulled out from the main pipe 20 to harden the connecting portion 22 and the end portion of the mounting pipe 21 to form the brim 8.
Can be covered with felt tube 9.

Therefore, even if the connecting portion 22 is cracked or misaligned, it is possible to prevent groundwater and earth and sand from entering the main pipe. Further, the curable resin permeates and hardens into these cracks and the like to prevent infiltration of water, and also serves to fix the main pipe connecting portion.

In the above embodiment, the case where the brim 8 is impregnated with the thermosetting resin has been described.
The thermosetting resin may be attached to the brim 8 after the temporary attachment to the packer-1. In this case, the elliptical hole 11 of the collar 8 to be processed according to the shape of the connecting portion 22 can be easily processed.

As shown in FIG. 1, the packer-1 is provided with a plurality of hose through holes 14 and, as shown in FIG. 8, a plurality of heating fluid supply hoses connected to a heating and pressurizing fluid source. -Su 1
5 is drawn through the through hole 14 to the other manhole, and when the felt tube 9 and the collar 8 reversely inserted into the mounting tube 21 are heated and hardened, the next mounting tube 21
It is possible to move the other packer-1a to the position of a,
It is possible to sequentially perform the water stoppage work on the connection portion of a plurality of mounting pipes, and it is possible to improve the work efficiency of the water stoppage work.

In the above embodiment, the case where the brim 8 and the felt tube 9 are impregnated with the thermosetting resin has been explained. good.

9 and 10 show the collar 8 and the felt tug.
The construction process in the case where the bump 9 is impregnated with the room temperature curable resin is shown. In this case, as shown in FIG. 9, the drain suction port 31
A drain hose 30 having a drain discharge port 32 at both ends is inserted into the lining material 7. The length of the drain hose 30 is about twice as long as the length of the reversal guide pipe 2 attached to the packer-1, and the drain suction port 31 is arranged so as to slightly project from the upper portion of the brim 8. Then, the lining material 7 is molded so as to reduce the cross-sectional area, and the heat-resistant film tube 10 and the drain hose 30 are fixed.

The lining material 7 is inserted into the reversing guide pipe 2 attached to the packer-1 having the drain hole 33, and the drain discharge port 32 of the drain hose 30 is exposed from the insertion port 6 of the reversing guide pipe 2 to the outside. The collar 8 is projected and the collar 8 is temporarily attached to the surface of the packer-1. After that, the collar 8 is aligned with the connecting portion 22 of the mounting pipe 21 and the main pipe 20 in the same manner as in the above embodiment. Then, pressurized air is sent from the air supply hose 3 attached to the packer-1 into the packer-1 to expand the packer-1, and as shown in FIG. Fixed to the section.

Thereafter, pressurized air is sent from the air supply hose 5 attached to the reversing guide pipe 2 into the reversing guide pipe 2, and the felt tube 9 of the lining material 7 and the heat-resistant film tube 10 are attached. Invert and insert into the tube 21.
As the liner 7 is turned over and inserted, the drain hose 3
The drain suction port 31 of 0 is fed into the inside of the mounting pipe 21 and is located outside the reversing surface 10a of the heat resistant film tube 10. The drain outlet 32 at the rear end of the drain hose 30 is located inside the main pipe 20 near the outside of the reversing guide pipe 2. Therefore, with the felt tube 9 and the heat-resistant film tube 10 inverted and inserted in the mounting pipe 21, the drain hose 30 can connect the mounting pipe 21 and the main pipe 20.

In this state, the felt tube 9 and the collar 8 are left to stand until the room temperature curable resin impregnated is cured, and a resin tube is formed in the connecting portion 22. The drain hose 30 that connects the mounting pipe 21 and the main pipe 20 can perform the original discharging function of the mounting pipe while the room temperature curable resin is being cured.

In each of the above embodiments, the main pipe 20 and the mounting pipe 2 are used.
Although the case where the collar 8 and the felt tube 9 are directly adhered to 1 has been described, the collar 8 and the felt tube 9 in which the connecting portion 22 is hardened after the synthetic resin pipes are lined on the inner surfaces of the main pipe 20 and the mounting pipe 21. Covering with the bush 9 makes it possible to completely take measures against water leakage and inundation of the buried pipe of the sewer or improve the flow rate.

Further, in each of the above embodiments, the case where the resin pipe is formed in the vicinity of the connecting portion 22 of the mounting pipe 21 has been described, but the resin pipe may be formed over the entire length of the mounting pipe 21.

[0037]

As described above, the present invention uses the lining material composed of the collar impregnated with the curable resin, the felt tube and the heat-resistant film tube covering the outer surface of the felt tube, A pressurized fluid supply hose is inserted inside the lining material, the shape of the lining material is changed so that the cross-sectional area is reduced, and the pressurized fluid supply hose is attached to the lining material. -Insert the inside of the inverted guide pipe, attach the collar of the lining material to the surface of the packer, move to the main pipe connection part of the mounting pipe, and then supply pressurized air to the inside of the packer. By expanding-, the collar of the lining material can be easily fixed to the main pipe connecting portion of the mounting pipe.

After fixing the brim of the lining material to the main pipe connecting portion of the mounting pipe, the felt tube of the lining material and the heat-resistant film tube are attached to the inside of the mounting pipe by applying pressurized air to the reversing guide pipe. Then, the felt tube can be completely adhered to the inner wall of the mounting tube by reversing and inserting.

Then, the heated and pressurized fluid is supplied to the pressurized fluid supply hose, and the heated and pressurized fluid is ejected from the fluid outlet of the pressurized fluid supply hose to harden the felt tube and the collar. By heating and curing the resin, the main pipe connecting portion of the mounting pipe can be completely covered with the synthetic resin, and groundwater and earth and sand can be prevented from entering from the connecting portion.

Further, by inserting a drain hose inside the lining material, changing the shape of the lining material so that the cross-sectional area becomes small, and fixing the heat-resistant film tube and the drain hose of the lining material, When the lining material is inverted or inserted into the mounting pipe, the drain hose can connect the mounting pipe to the main pipe, so that the drain hose exerts its original discharge function until the hardening resin is cured. be able to.

Further, in this case, since the construction can be carried out only from the main pipe side, the construction can be easily carried out in the vicinity of the connection portion of the mounting pipe without mounting or the mounting pipe having a long distance. Moreover, since the construction does not enter the residential land or the company premises by performing the construction only from the main side, the construction can be performed in any place without any trouble.

[Brief description of drawings]

FIG. 1 is a sectional view showing a lining material and a packer used in an embodiment of the present invention.

FIG. 2 is a perspective view showing the lining material of the above embodiment.

FIG. 3 is a perspective view showing a processed state of the lining material.

FIG. 4 is a cross-sectional view showing a construction process of the above embodiment.

FIG. 5 is a cross-sectional view showing a construction process of the above embodiment.

FIG. 6 is a cross-sectional view showing a construction process of the above embodiment.

FIG. 7 is a cross-sectional view showing a construction process of the above embodiment.

FIG. 8 is a sectional view showing another embodiment.

FIG. 9 is a cross-sectional view showing a construction process of a third embodiment.

FIG. 10 is a cross-sectional view showing a construction process of the third embodiment.

[Explanation of symbols]

 1,1a Packer 2 Inversion guide pipe 3,5 Air supply hose 4 Air supply port 6 Pressurized fluid supply hose insertion port 7 Lining material 8 Collar 9 Felt tube 10 Heat-resistant film tube 12 Pressurization Fluid supply hose 13 Fluid outflow part 20 Main pipe 21 Mounting pipe 22 Connection part 30 Drain hose

Claims (3)

[Claims] 1. A felt collar to which a hole adapted to the diameter and shape of a main pipe connecting portion of a mounting tube is provided at one end and a curable resin adhered or impregnated, and a curable resin fixed to the hole of the collar. An inner lining material for a mounting pipe, comprising: a felt tube impregnated with a felt tube; and a heat-resistant film tube that is longer than the felt tube and covers the felt tube. 2. A pressurized fluid supply hose having one or a plurality of fluid outlets is inserted into the inside of the lining material, and the fluid outlet is arranged on the rear side of the heat-resistant film tube. Change the shape so that the cross-sectional area becomes smaller,
One end is attached to the surface of the packer, and is inserted into a reversing guide pipe having an air supply port and a pressurized fluid supply hose insertion port at the rear end that penetrates the inside of the packer, and the collar of the lining material is inserted into the packer. After mounting on the surface and moving the packer to the main pipe connecting part of the mounting pipe, pressurized air is supplied to the inside of the packer to expand the packer, and the collar of the lining material is connected to the main pipe connecting part of the mounting pipe. Fixed, the pressurized air is supplied from the air supply port of the reversing guide pipe, the lining material is reversed and inserted into the mounting pipe, and the heated and pressurized fluid is supplied from the pressurized fluid supply hose.
A method for constructing a lining material for a mounting pipe, which comprises heating and curing an inverted felt tube and a collar. 3. A drain hose is disposed through the lining material, the shape of the lining material is changed so as to reduce the cross-sectional area, and one end of the lining material is attached to the surface of the packer. Inserted into a reversing guide pipe having an air supply port at the rear end, the collar of the lining material is attached to the surface of the packer, and the rear end of the drain hose is pulled out from the reversing guide pipe by a certain length. After moving to the main pipe connection part of the mounting pipe, pressurized air is supplied to the inside of the packer to expand the packer, and the collar of the lining material is fixed to the main pipe connection part of the mounting pipe. Pressurized air is supplied from the air supply port, the lining material is inverted and inserted into the mounting pipe, and the suction port of the drain hose is set to the film tube until the inverted felt tube and the curable resin of the collar are cured. -Protruded from the reverse surface Construction method of lining material for mounting pipes, which is held at