JP2006200126A - Device for repairing connecting part of manhole peripheral wall and pipe and repairing construction method using the repairing device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a repairing device and a repairing construction method using this repairing device, capable of surely repairing a connecting part, after cutting an invert, for exposing a lower half part of a connecting place buried in the invert by the repairing device, even when a connecting part lower half part of a manhole peripheral wall and a pipe is buried in the invert. <P>SOLUTION: This connecting part repairing device of the manhole peripheral wall and the pipe of a manhole comprises the pipe respectively connected to the opposed manhole peripheral wall, an opening part of the pipe respectively oppositely exposed to the inner surface side of the manhole peripheral wall and an introducing passage formed in the invert of a manhole bottom part, and is characterized by having a holding member, a moving rod, a driving member and an invert cutting member arranged in the pipe of the opposed one side manhole peripheral wall, a rotary member, a vertically moving member and a laterally moving member. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

The present invention relates to a repair device used when, for example, applying earthquake resistance to a connection portion between a manhole peripheral wall and a pipe connected to the manhole peripheral wall, and a repair method using the repair device.

  The manhole generally indicates, for example, a hole through which a person enters and exits in order to inspect and clean the sewer pipe, and is installed at certain intervals between the uppermost stream, the junction, and the bending point of the sewer pipe. The sewer pipe is connected to the peripheral wall of the manhole.

  By the way, in recent years when earthquakes frequently occur, earthquake resistance of all structures or buildings has been studied and implemented.

  The same is also applied to the connecting portion between the peripheral wall of the manhole and, for example, a sewer pipe connected to the peripheral wall of the manhole.

  Thus, in order to speed up the repair work of the connecting portion, for example, a repair machine as described in JP-A-2001-28965 is used for repair.

  However, in the case of the repair device as described above, for example, as shown in FIG. 4, when the lower half of the connecting portion between the manhole peripheral wall and the pipe is buried in invert, it cannot be used, After entering the manhole and manually cutting the invert, the repair device had to be repaired.

JP 2001-28965 A

  However, when the lower half of the connecting part between the manhole peripheral wall and the pipe is buried in invert, the repair device cannot be used directly, so that the operator enters the manhole and is connected to the invert. The invert must be manually cut to expose the lower half of the.

  However, repairing the invert with the repair device after manually cutting the invert is remarkably labor intensive, and in order to accurately cut the invert manually, experience and skill are required. There was a problem of becoming larger.

Thus, the present invention was devised to cope with such a problem, and even when the lower half of the connecting portion between the manhole peripheral wall and the pipe is buried in the invert, it is buried in the invert by the repair device. It is an object of the present invention to provide a repair device that can cut inverts and then reliably repair the connection portion in order to expose the lower half of the connected portion, and a repair method using the repair device.

The repairing method using the repairing device and the repairing device for connecting the peripheral wall of the manhole and the pipe according to the present invention,
A pipe connected to each of the opposed manhole peripheral walls, an opening of the pipe exposed opposite to the inner surface of the manhole peripheral wall, and an introduction path formed in the invert at the bottom of the manhole provided between the openings of the pipe It is a repairing device for connecting a manhole peripheral wall of a manhole and a pipe,
A holding member installed in a pipe on the one peripheral wall of the opposite manhole, a moving rod held by the holding member, a driving member for moving the moving rod forward and backward in the axial direction of the tube, and a disk connected to the moving rod. An invert cutting member, a rotating member that rotates the invert cutting member, a vertical moving member that moves the invert cutting member in the vertical direction, and a left and right direction moving member that moves in the left and right direction,
It is characterized by having
Or
The invert is cut into a substantially semicircular shape larger than the outer diameter of the opening exposed on each of the opposed manhole peripheral walls by the manhole peripheral wall and pipe connection repair device.
It is characterized by
Or
A pipe connected to each of the opposed manhole peripheral walls, an opening of the pipe exposed opposite to the inner surface of the manhole peripheral wall, and an introduction path formed in an invert at the bottom of the manhole provided between the openings of the pipe A connecting portion repairing device between the manhole peripheral wall of a manhole and a pipe,
A holding member installed in a pipe on the one peripheral wall of the opposite manhole, a moving rod held by the holding member, a driving member for moving the moving rod forward and backward in the axial direction of the tube, and a disk connected to the moving rod. An invert cutting member, a rotating member that rotates the invert cutting member, a vertical moving member that moves the invert cutting member in the vertical direction, and a left and right direction moving member that moves in the left and right direction,
A manhole peripheral wall cutting member attached in place of the invert cutting member, and
Or
By cutting the invert into a substantially semicircular shape larger than the outer diameter of each of the openings exposed on the opposing manhole peripheral walls by the connecting portion repairing device of the manhole peripheral wall and the pipe,
Next, the manhole peripheral wall is cut into a substantially circular shape larger than the outer diameter of each opening exposed to the manhole peripheral wall by a manhole peripheral wall cutting member attached instead of the invert cutting member.
It is characterized by this.

According to the apparatus for repairing a connection portion between a manhole peripheral wall and a pipe according to the present invention and the repair method using the repair device, even if the lower half of the connection portion between the manhole peripheral wall and the pipe is buried in an invert. However, the repair device of the present invention has an excellent effect that the invert can be cut smoothly so as to expose the lower half of the connection portion buried in the invert, and then the connection portion can be repaired reliably and quickly.

  The best mode for carrying out the present invention will be described below with reference to the drawings.

In the figure, reference numeral 1 denotes a manhole. The inside of the manhole 1 is formed to have a substantially cylindrical space, and the manhole peripheral walls 2 and 2 that are opposed to each other in the lower portion of the space have end faces of the pipe 3 embedded in the ground, that is, the opening 4. Is exposed from the manhole peripheral walls 2 and 2 to the inside of the manhole 1.

The substantially lower half of the opening 4 of the tube 3 is formed so as to communicate with the communication passage 6 having a substantially U-shaped cross section formed in the invert 5, so that the invert between the tube 3 and the tube 3 is formed. 5, a communication path 6 having a substantially U-shaped cross section is provided, and the flow path in the pipe 3 and the flow path of the pipe 3 are connected by the communication path 6.

  Here, in recent years, it has become necessary to perform repair work for reasons such as earthquake resistance at the connection portion between the manhole peripheral wall 2 and the pipe 3 of the manhole 1.

  That is, the manhole peripheral wall 2 is excavated in a circular shape having a larger diameter than the opening 4 of the manhole peripheral wall 2, and the excavated large diameter circular hole and the pipe 3 connected to the hole are excavated. Repair work is performed in which a seismic member is interposed in the gap with the outer peripheral surface of the steel plate.

  Here, in order to repair the connection portion between the so-called semi-rigidly connected tube 3 and the manhole peripheral wall 2, the outer periphery of the tube 3, which is a connection portion, is connected from the inside of the manhole 1 with, for example, a dedicated cutting machine. It is preferable to ensure flexibility, water stoppage, and the like by cutting the portion larger and filling the cut portion with an earthquake resistant member such as an elastic joint material.

  In addition, the construction method performed by excavating the outer periphery of the manhole 1 may have a problem of traffic obstruction, an influence on the surrounding environment, an influence on underground facilities of other companies, and the like. Therefore, in consideration of these problems and economy, a method of cutting the connecting portion between the pipe 3 and the manhole peripheral wall 2 from the inside of the existing manhole 1 is preferable.

Here, the general standard construction procedure is as follows.
(Temporary drainage)
A stop cock is installed in the upstream pipe 3 of the manhole 1 for implementing earthquake resistance, and the upstream manhole 1 is pumped up and drained.

  As described above, the temporary drainage is an operation for temporarily draining sewage, which hinders a series of operations at a place where earthquake resistance is performed, using a submersible pump or a hard vinyl chloride pipe.

  Here, the selection of the temporary drainage method takes into account the workability in the manhole 1 and the deadline drainage by the submersible pump is standard except when the concrete for Invert 3 is being trained. However, if it is not possible to install a submersible pump due to on-site conditions, temporary drainage using hard polyvinyl chloride pipes, etc. will be selected.

In addition, the deadline drainage during the work is performed so as not to disturb the drainage at the site.
(Water stoppage)
Next, in order to prevent intrusion of groundwater, earth and sand, etc. from the cutting location, a water stop is injected from the inside of the manhole 1 into the ground before cutting. The waterstop works to inject water-stopping material from the inside of the manhole 1 to the natural ground before cutting in order to prevent intrusion of groundwater or earth and sand from the cutting site. Here, an inorganic injection material (suspension type) is used as the water stop material.
(Concrete scraper)
For example, a cutting device is installed in the manhole 1 to cut the connecting portion, but the concrete of the invert 5 that disturbs the cutting is broken up, and the broken concrete block is carried out of the manhole 1. Must be transported and disposed of.

  That is, since the concrete scraper installs a dedicated cutting device in the manhole 1, the concrete of the invert 3 which becomes an obstacle is manually scraped by the operator, for example (in the present invention, the concrete of the invert 3 can be smoothly torn down. Developed a unique invert cutting member), and it is necessary to carry it out of the manhole 1. In addition, the generated concrete mass is transported and disposed of.

In addition, the incision depth of the invert 3 required for installing the cutting device varies depending on the cutting device (core cutting machine).
(Cutting worker)
For example, a dedicated cutting device is installed in the manhole 1, and the outer peripheral portion of the tube 3 is cut to be larger by the cutting device.
(Sealing work)
Further, after a backup material is inserted into the cutting portion, an elastic sealing material is filled to finish the joint.
(Invert restoration work)
If necessary, an absorbent rubber block is installed in the invert 5 portion, and the invert 3 portion that has been further removed is restored. Further, the surface of the invert 3 is finished by, for example, topcoat mortar.

  Thus, as described above, the present invention is greatly related to a concrete scraper. As can be understood from FIG. 5, the lower half of the connecting portion with the pipe 3 connected to the manhole peripheral wall 2 is buried in the invert 5, and the connecting portion between the manhole peripheral wall 2 and the pipe 3 remains as it is. It is impossible to excavate the manhole peripheral wall 2 including the opening 4 as a circular hole having a larger diameter than the opening 4.

  Therefore, conventionally, for example, an operator enters the manhole 1 and uses a so-called chipping tool to chip the invert 5 in the manhole 1 so that the connecting portion between the manhole peripheral wall 2 and the pipe 3 is larger in diameter than the opening 4. The manhole peripheral wall 2 was excavated including the opening 4 as a hole.

On the other hand, in the present invention, the invert 5 was developed so as to be quick and easy.
First, a specially configured repair device 7 is used in the present invention (product name: MSQ 2005 “M: Machine, Method, S: Speed, Separate, Q: Quality”).

  The repair device 7 includes a holding member 8, a moving rod 9, an invert cutting member 10, an up / down direction moving member 11 that moves the invert cutting member 10 in the up / down direction, and a left / right direction moving member 12 that moves the invert cutting member 10 in the left / right direction. And a manhole peripheral wall cutting member 13 to which the invert cutting member 10 can be replaced and attached.

  Thus, the general configuration of the repairing device 7 will be described, and its installation and use state will be described. As can be understood from FIG. 1, the holding member 8 is installed inside the pipe 3 on one side.

  The holding member 8 includes a long cylindrical holding member main body 14 having a hollow portion therein and a tension installation member 15... For fixing and arranging the holding member main body 14 at the axial center position of the tube 3. Has been.

  A moving rod 9 having a long round bar shape is inserted into the holding member main body 14 having a long cylindrical shape so as to be movable in the axial direction of the tube 3.

  A cutting device 16 is attached to the distal end side of the movable rod 9, and an invert cutting member 10 having a substantially disc shape is provided at the distal end of the cutting device 16 and a cutting blade 18 is provided on the outer peripheral end surface thereof. Yes.

  Further, the cutting device 16 is provided with an advancing / retreating member 17 constituted by a hydraulic cylinder or the like that enables the invert cutting member 10 to advance / retreat in the axial direction of the tube 3, and the invert cutting member 10 is moved in the vertical direction. A vertical movement member 11 composed of a ratchet or a gear to be moved to the left and right, and a horizontal movement member 12 (see FIG. 3) for reliably positioning the invert cutting member in the horizontal direction are provided.

  Here, as can be understood from FIG. 1, after installing the repairing device 7 of the present invention, the invert cutting member 10 is driven by the two-dot chain line 19 in FIG. 1 by driving the vertical moving member 11 and the horizontal moving member 12. Cut to the indicated position.

  In addition, if the cutting state is demonstrated from FIG. 3, it will be to the position shown by the dashed-two dotted line 20 in FIG.

  Subsequently, as can be understood from FIG. 1, the advancing / retreating member 17 is driven to move the invert cutting member 10 forward and the invert cutting member 10 by the thickness, and the invert cutting member 10 is again moved in the up / down direction moving member. 11 and the left-right direction moving member 12 are driven to cut to a position indicated by a two-dot chain line 19 in FIG.

  Thus, this cutting operation is repeated and excavated to the position of the opening 4 of the opposing pipe 3 (see FIG. 2).

  Thereafter, the repair device 7 is removed, a holding member 8 is installed inside the other tube 3 facing the one tube 3, and the repair device 7 is arranged toward the one tube 3. Then, the invert cutting member 10 is driven to the position of the opening 4 of the pipe 3 on one side and is cut.

  Thus, the invert 5 can be excavated smoothly and cleanly, and the opening 4 of the opposing pipe 3 can be greatly exposed to the outside.

  Subsequently, the invert cutting member 10 of the repair device 7 is replaced with a manhole peripheral wall cutting member 13, and the connecting portion between the opposing manhole peripheral wall 2 and the pipe 3 is formed as a circular hole having a diameter larger than that of the opening 4. 4, the manhole peripheral wall 2 is excavated.

  After this cutting, as described above, a sealing work is performed to complete the earthquake resistance of the connecting portion between the manhole peripheral wall 2 and the pipe 3.

  Thereafter, the repairing device 7 is removed and installed again on the pipe 3 on the side where the sealing work has been performed, and the connection part between the manhole peripheral wall 2 and the pipe 3 on the other side is formed as a circular hole having a larger diameter than the opening 4. The manhole peripheral wall 2 including the opening 4 is excavated.

  After the cutting, the above-described sealing work is performed, and further, the seismic resistance of the connecting portion between the manhole peripheral wall 2 and the pipe 3 on the other side is completed.

After that, the invert restoration work described above will be performed.

It is schematic structure explanatory drawing (the 1) of the repair apparatus by this invention. It is schematic structure explanatory drawing (the 2) of the repair apparatus by this invention. It is schematic structure explanatory drawing (the 3) of the repair apparatus by this invention. It is composition explanatory drawing (the 1) of a manhole. It is structure explanatory drawing (the 2) of a manhole. It is schematic structure explanatory drawing (the 4) of the repair apparatus by this invention. It is schematic structure explanatory drawing (the 5) of the repair apparatus by this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Manhole 2 Manhole surrounding wall 3 Pipe 4 Opening part 5 Invert 6 Communication path 7 Repair apparatus 8 Holding member 9 Moving rod 10 Invert cutting member 11 Vertical moving member 12 Left and right moving member 13 Manhole peripheral wall cutting member 14 Holding member main body 15 Member 16 Cutting device 17 Moving member
18 Cutting blade 19

20 Two-dot chain line

Claims (4)

A pipe connected to each of the opposed manhole peripheral walls, an opening of the pipe exposed opposite to the inner surface of the manhole peripheral wall, and an introduction path formed in the invert at the bottom of the manhole provided between the openings of the pipe It is a repairing device for connecting a manhole peripheral wall of a manhole and a pipe,
A holding member installed in a pipe on the one peripheral wall of the opposite manhole, a moving rod held by the holding member, a driving member for moving the moving rod forward and backward in the axial direction of the tube, and a disk connected to the moving rod. An invert cutting member, a rotating member that rotates the invert cutting member, a vertical moving member that moves the invert cutting member in the vertical direction, and a left and right direction moving member that moves in the left and right direction,
An apparatus for repairing a connecting portion between a manhole peripheral wall and a pipe, characterized by comprising:
Cutting the invert into a substantially semicircular shape that is larger than the outer diameter of each of the openings exposed on the opposing manhole peripheral walls, by the manhole peripheral wall and pipe connecting device repairing device according to claim 1.
A method for repairing the connection part between the peripheral wall of the manhole and the pipe.
A pipe connected to each of the opposed manhole peripheral walls, an opening of the pipe exposed opposite to the inner surface of the manhole peripheral wall, and an introduction path formed in an invert at the bottom of the manhole provided between the openings of the pipe A device for repairing a connecting portion between a manhole peripheral wall and a pipe of a manhole,
A holding member installed in a pipe on the one peripheral wall of the opposite manhole, a moving rod held by the holding member, a driving member for moving the moving rod forward and backward in the axial direction of the tube, and a disk connected to the moving rod. An invert cutting member, a rotating member that rotates the invert cutting member, a vertical moving member that moves the invert cutting member in the vertical direction, and a left and right direction moving member that moves in the left and right direction,
A manhole peripheral wall cutting member attached instead of the invert cutting member. A connection repairing device for connecting a manhole peripheral wall and a pipe.
By cutting the invert into a substantially semicircular shape larger than the outer diameter of each opening exposed to the facing manhole peripheral wall by the manhole peripheral wall and pipe connecting device repairing device according to claim 3,
Next, the manhole peripheral wall is cut into a substantially circular shape larger than the outer diameter of each opening exposed to the manhole peripheral wall by a manhole peripheral wall cutting member attached instead of the invert cutting member.
A method for repairing the connection part between the peripheral wall of the manhole and the pipe.

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