JP2007063912A - Installation method of hose for injection of filling material into existing embedded pipe - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To efficiently install a hose for the injection of a filling material for an underground embedded pipe into a cavity of an existing embedded pipe. <P>SOLUTION: The installation method of the hose for the injection of the filling material into the existing embedded pipe has a step for installing a support in the cavity of the embedded pipe or the like, a step for communicating the outside of the cavity with the support with a wire or the like through a pulley by fixing the pulley to the support, a step for coupling the hose for injection of the filling material with one end of the wire extended outside the cavity, and a step for laying the hose for injection of the filling material between the support in the cavity and the outside of the cavity by pulling the other end of the wire extended in the cavity. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to underground gas pipes and water pipes that have deteriorated due to city planning and long-term laying, underground pipes that are laid with cables such as communication lines and power lines, etc. The present invention relates to a method of installing a filling material injection hose that can be used to close a discontinued pipe by filling a filling material in a pipe of a buried pipe.

  If the various underground pipes buried in the ground corrode due to urban planning or long-term laying, or are damaged due to other factors and become unusable, do not dig out the underground pipes If it is left buried, it is dangerous to break due to a disaster or land subsidence.

As one of the means for closing the abandoned pipe without digging out the underground pipe, a method of filling the hollow portion (pipe) of the underground pipe with a filler such as bubble mortar has been adopted.
In the operation of injecting the filler into the pipe of the underground pipe, one end of the injection hose is manually pulled to the filling or injection start point in the cavity of the underground pipe, and the filler is filled from the injection hose. Was injecting treatment.

  In the conventional work described above, the injection hose is guided to the filling start point inside the existing underground pipe, particularly when the installation section of the injection hose is long and when the hollow section of the underground pipe is small. When the hose is heavy and the operator pulls the injection hose into the buried pipe, there are problems such as poor work efficiency and danger.

  The present invention is efficient and safe to install the injection hose in the cavity of the existing underground pipe for injecting the filler in the processing work such as the above-described underground underground pipe. Is to provide a way to do.

  In order to solve the above problems, the present invention includes a step of providing a column inside a cavity such as an embedded pipe, a step of fixing a pulley to the column, and communicating between the outside of the cavity and the column via a pulley, etc. A step of connecting the filler injection hose to one end of the wire extending outside the cavity, and pulling the other end of the wire protruding to the cavity to place the filler injection hose between the struts inside the cavity and the outside of the cavity This is a method of installing a hose in a cavity such as a buried pipe having a step of squeezing.

  Since this invention was set as the above structures, the operation | work which installs a filler injection | pouring hose in the cavity of an existing pipe | tube can be done efficiently.

  The best mode for carrying out the present invention will be described based on the following examples.

FIG. 1 is a schematic view showing a hose installation method according to the present invention. Reference numeral 1 denotes an existing underground pipe, and a hollow portion (tube) of the underground pipe 1 is used to close the abandoned pipe of the underground pipe. The column 6 is installed at the arrival point 5 of the injection port 4 at the tip of the injection hose 3 which is the injection start point of the filler such as the foam mortar.
The strut 6 is threaded at the upper and lower ends, and the height can be adjusted by a fine adjustment member 7 screwed with the screw portion 6a. The tip of the injection hose 3 in the hollow portion 2 of the underground pipe The insertion member 8 such as a hard synthetic rubber plate sandwiched between the upper and lower surfaces of the column 6 standing at the arrival point 5 of the injection port 4 is inserted into the underground tube 1 by the rotation of the fine adjustment member 7. The insertion member 8 is abutted and supported on the peripheral surface 1a.

  Further, when the contact force between the insertion member 8 inserted into the end of the column 6 and the inner peripheral surface 1a of the buried pipe 1 is insufficient, the adjustment member 7 is further rotated to adjust the height. Since 8 is in close contact with the inner peripheral surface 1 a of the buried pipe 1, the column 6 can be reliably installed in the cavity 2.

A pulley 9 is fixed to the support column 6 standing in the hollow portion 2 of the underground pipe 1 with a wire clamp 12, and a wire 13 is drawn into the pulley 9 from the outside (vertical shaft) 15 of the underground pipe 1. It communicates with the outside of the buried pipe 1 via a pulley 9.
The wire 13 is installed so as to be wound around the winch 14 via the pulley 10.11.

  The tip of the injection hose 3 is connected to the other end of the wire 13, and when the winch 14 is wound up, the wire 13 is wound around the winch 14 until the injection port 4 at the tip of the injection hose 3 reaches the hose leading point 5. The installation of the injection hose 3 is completed. Thereafter, the support 6, the insertion member 8, and the pulleys 9, 10, and 11 are taken out from the hollow portion of the underground pipe 1.

  The tip injection port 4 of the injection hose 3 is pulled to a predetermined position of the hollow portion of the buried pipe 1 of the ground GL, and after removing the pulling device such as the support 6, the injection tube 4 of the injection hose 3 is connected to the underground buried tube 1. Filling and filling the cavity 2 with a filler such as bubble mortar, the operation of closing the abandoned pipe for the underground pipe is completed.

  It is possible to install the injection hose efficiently and safely for the filling and filling work of the filling material such as the bubble mortar in the filling abolition pipe closing work in the cavity of the underground pipe.

It is the schematic which shows the injection hose installation method of this invention.

Explanation of symbols

1 Underground pipe 1a Inner peripheral surface 2 Cavity (pipe)
Reference Signs List 3 Injection hose 4 Inlet 5 Hose port arrival point 6 Post 6a Screw part 7 Fine adjustment member 8 Insertion member 9 Pulley 10 Pulley 11 Pulley 12 Wire tightening 13 Wire 14 Winch 15 Outside (Vertical shaft)

Claims (1)

A step of providing a column inside a cavity such as a buried pipe, a step of fixing a pulley to the column and communicating between the outside of the cavity and the column via a pulley, etc., and a filler at one end of the wire coming out of the cavity A step of connecting the injection hose, and a step of pulling the other end of the wire coming out of the cavity to squeeze the filler injection hose between the struts inside the cavity and the outside of the cavity, How to install the filler injection hose in the buried pipe in the cavity.

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