JP2016125533A - Method for drilling fixing pipe in pipe regeneration process - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a method for drilling a fixing pipe for regenerating a pipe, for applying marks for a drilling position by clearly indicating through light from the fixing pipe.SOLUTION: A pipe conduit is buried in underground such as a road, a main pipe conduit 2 is installed between a manhole 1 and a manhole 1. A fixing pipe drilling method of this invention for regenerating a pipe is carried out in such a way that a regenerating pipe 7 inserted into an existing main pipe 2 or its surface member is clearly indicated for its fixing pipe port by light of a lamp before filling its clearance with back-filling material, the corresponding portion is indicated with a marking from inside the main pipe 2 before filling of the back-filling material and even after filling there with the back-filling material, the drilling is carried out with this marking being applied as a target mark, thereby water discharging from the fixing pipe 4 can be easily flowed into the main pipe 2.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a method for perforating a mounting pipe in a pipe rehabilitation for perforating a portion of a mounting pipe that is attached to a main pipe for residential land drainage or rainwater drainage after the main pipe is rehabilitated.

Conventionally, when damage, cracks, corrosion, etc. have occurred in existing pipes and load carrying capacity, durability decline and flowability cannot be maintained, a new pipe is constructed on the inner surface of the existing pipe. There is a rehabilitation method that ensures rehabilitation and flow-through capacity.
The pipe rehabilitation method includes a self-supporting pipe (reversing method / forming method), a composite pipe (pipe making method), a two-layer structure (reversing method / forming method), and a sheath (sheath) method.

In general, when rehabilitating the main pipe, after rehabilitating the main pipe, when drilling the location of the mounting pipe attached to the main pipe for residential land drainage or rainwater drainage, the main pipe is for drilling with a TV camera. The machine was turned on and illuminated with a camera device with a light from the side of the mounting tube, and it was drilled to aim at the part specified by the light of the light so that the mounting tube and the main tube could be passed through. Alternatively, a drilling instrument is inserted from the attachment pipe side, and the main pipe is drilled so that water can pass therethrough.
Although it depends on the rehabilitation method, in general, when the tube inserted into the tube is clearly indicated by the light from the side of the mounting tube, drilling is performed for that portion. However, in the case of the pipe making method in which the gap between the existing pipe and the rehabilitated pipe is filled with backfilling material, the light of the light is often not clearly shown on the existing pipe side, so it is difficult to drill at that part. It was. In addition, there are machines and jigs for drilling the main pipe from the heel side through the drilling machine, but there are problems such as difficulty and time when there are many bends.

For this reason, there is known a method for rehabilitating an existing pipe rod that can accurately and quickly form a hole for communicating with the main pipe at the connection portion between the main pipe and the mounting pipe using a magnet (patent) Reference 1).
This known technique includes a magnet placement step in which a standby magnet piece is placed at the center of the attachment pipe at the connection portion between the main pipe and the attachment pipe, and the entire circumference of the inner peripheral surface of the main pipe to be repaired. The exploration side magnet piece is adsorbed via the rehabilitation material using the magnetic force of the standby magnet piece at the position corresponding to the connection part of the mounting pipe closed by the rehabilitation material and the repair process of arranging the rehabilitation material. It includes a magnet attracting step and a drilling step of forming a perforation in the rehabilitated material with the search side magnet piece as a mark and in alignment with the search side magnet piece at the center position.

Also, there is a known method for rehabilitating existing pipe rods that can accurately and quickly form perforations for communicating with the main pipe at the connection between the main pipe and the mounting pipe using electromagnetic waves or ultrasonic waves. (See Patent Document 2).
This known technique is a method for rehabilitating an existing pipe rod for repairing an existing pipe rod having a main pipe buried in the ground and a mounting pipe connected to the main pipe in an unopened state, In order to repair the main pipe, the rehabilitation material is disposed over the entire circumference of the inner peripheral surface, and based on the reflected wave signal obtained by transmitting / receiving electromagnetic waves or ultrasonic waves from the main pipe side, the rehabilitation material blocks the main pipe. In this state, alignment is performed based on the connection mark exploration process for exploring the connection part of the detached mounting pipe, the mark application process for applying the mark to the position of the connection part from the main pipe side, and the provided mark. A perforating step of perforating the rehabilitated material from the main pipe side.

Japanese Patent No. 4963427 (FIG. 2) Japanese Patent No. 495990 (FIGS. 8, 9, and 10)

  SUMMARY OF THE INVENTION An object of the present invention is to provide a method for drilling a mounting pipe in a tube rehabilitation that provides a mark of a drilling position by clearly indicating the light from the side of the mounting pipe.

  The pipe piercing method in the pipe rehabilitation of the present invention is a temporary repair process in which a surface member is disposed over the entire circumference of the inner peripheral surface to repair the main pipe, and a camera device with a light from the side of the mounting pipe. In light of the light, the position indication process that clearly indicates the mounting pipe port, the marking process for marking from the inside of the main pipe at the position corresponding to the mounting pipe port blocked by the surface member, and repairing the main pipe As a result, the repair process for filling the backfill material over the entire circumference of the inner peripheral surface and the marking from the main pipe as a mark, and drilling the surface material and the backfill material with the marking in the center position. A drilling process formed by a drilling machine.

  In the pipe rehabilitation method according to the present invention, the rehabilitation pipe inserted into the existing main pipe and the surface member of the rehabilitation pipe are clearly indicated by the light before the backfill material is filled in the gap. Before filling the backfill material into the part, mark from the inside of the main pipe, and even after the backfill material is filled, drilling with the drilling machine with this marking as the target allows easy drainage from the mounting pipe to the main pipe. There is an effect that can be introduced.

It is a schematic sectional drawing of the attachment pipe drilling method in the pipe rehabilitation of this invention. It is a schematic sectional drawing of the rehabilitation method of the conventional existing pipe rod. It is an expanded sectional view of the conventional rehabilitation method for existing pipes.

One embodiment of a method for drilling a mounting pipe in a pipe rehabilitation according to the present invention will be described below with reference to the accompanying drawings.
Conventionally, as shown in the schematic cross-sectional view of FIG. 2 and the enlarged cross-sectional view of FIG. 3, a pipe is buried underground such as a road, and the main pipe 2 is disposed between the manhole 1 and the manhole 1. In addition, drainage from the home flows into the attachment pipe 4 through the gutter 3 and joins the main pipe 2.
In the pipe rehabilitation, when the main pipe 2 is rehabilitated, when the location of the mounting pipe 4 attached to the main pipe 2 for housing land drainage or rainwater drainage is drilled, a drilling machine with a TV camera is installed in the main pipe 2 5 and lit with a camera device 6 with a light from the side of the mounting tube 4, and drilled to aim at the part clearly indicated by the light of the light so that the mounting tube 4 and the main tube 2 could be passed through. .
Although depending on the rehabilitation method, when the rehabilitated tube 7 inserted into the tube is clearly indicated by the light of the light from the mounting tube 4 side, drilling is performed by the perforating machine 5 for that portion. However, in the case of a pipe making method in which a backfill material is filled in the gap between the existing main pipe 2 and the rehabilitation pipe 7, the light light is often not clearly shown on the existing main pipe 2 side, so that part is used for drilling. It was difficult to drill with the machine 5.

As shown in the schematic cross-sectional view of FIG. 1, the method of drilling a mounting pipe in the pipe rehabilitation of the present invention is that before the rehabilitation pipe 7 inserted into the existing main pipe 2 or its surface member is filled with a backfill material in the gap. The mounting pipe port is clearly indicated by the light, and this part is marked from the inside of the main pipe 2 before the backfilling material is filled, and even after the backfilling material is filled, this marking is targeted by the drilling machine 5 By draining, the drainage from the mounting pipe 4 can be easily flowed into the main pipe 2.
In this pipe rehabilitation method, the mounting pipe drilling method includes a temporary repairing process in which a surface member is disposed over the entire inner peripheral surface of the main pipe 2 for repairing, and a camera device 6 with a light attached from the mounting pipe 4 side. The marking process for marking from the inside of the main pipe 2 at the position corresponding to the mounting pipe port blocked by the surface member, and the main pipe 2 In order to repair the surface material and backfilling material, the repairing process is to fill the backfilling material over the entire circumference of the inner peripheral surface, and the marking is marked from the main pipe 2 side with the marking being centered. On the other hand, it comprises a drilling step of forming a drill by the drilling machine 5.

The temporary repairing process and the main repairing process are made into pipes while fitting hard vinyl chloride resin material or polyethylene resin material, which is a surface member, into an existing pipe tube, or previously processed into a tubular shape in a factory or the like A rehabilitation pipe integrated as a composite pipe is constructed by inserting a sheath (sheath) pipe and filling mortar or the like into the gap between the pipe made or inserted resin pipe and the existing pipe.
In the position display process, the mounting tube port is clearly indicated by the light of the light when illuminated by the camera device 6 with a light from the mounting tube 4 side.

The marking step is performed by a drilling machine 5 or a jig that is provided with a TV camera or the like that can be confirmed from the TV camera or the like without an operator entering the pipe. Marking includes a method in which ink is impregnated in advance with a sponge or the like, or ink is sprayed by spraying.
In short, by clearly indicating on the tube wall at the timing at which the position of the mounting tube port can be confirmed by a light or the like, the position of the mounting tube port can be determined even if it cannot be specified later by the same method. The method of marking with a sponge or similar material impregnated with ink in advance is to press against the tube wall using an attachment that attaches the sponge to the drilling blade of the drilling machine 5 for drilling the mounting tube port from the inside of the tube. There is a method of pressing while rotating.

  In the drilling process, there are various machines such as a self-propelled type and a wire pulling method in the operation method of the drilling machine 5 and a pressing operation method such as a hydraulic type, an air compression method and a wire type. Although the pulling type was shown, the position of the mounting pipe port can be easily identified by marking on the pipe wall regardless of these methods, and drainage from the mounting pipe 4 into the main pipe 2 is intended. Allow perforations to be formed.

1 Manhole 2 Main pipe 3 桝 4 Mounting pipe 5 Drilling machine 6 Camera device 7 Rehabilitation pipe

Claims (1)

  Temporary repairing process in which surface members are arranged over the entire circumference of the inner peripheral surface to repair the main pipe, and the position where the mounting pipe port is clearly indicated by the light of the light when illuminated by a camera device with a light attached from the mounting pipe side Marking process for marking from the inside of the main pipe at the position corresponding to the mounting pipe port blocked by the surface member, and backfilling material is filled all around the inner peripheral surface to repair the main pipe And a drilling process in which a hole is formed on the surface material and the back-filling material by a drilling machine with the marking as a mark from the main pipe side as a mark. Mounting pipe drilling method in pipe rehabilitation.

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