WATER STOP METHOD AT THE TIME OF INSERTING PIPE INTO GROUND

Title:

WATER STOP METHOD AT THE TIME OF INSERTING PIPE INTO GROUND

Document Type and Number:

Japanese Patent JPH108874

Kind Code:

A

Abstract:

To prevent underground water from springing up into an opencut hole easily and positively in case of inserting a pipe into the ground from the open-cut hole.

A part of an earth retaining wall is cut off, and the ground 13 on the inner side is manually dug by the specified depth in the horizontal direction to form a pre-excavated part 14. Freezing jigs 21 and drain pipes 22 are installed in the pre-excavated part 14. With the drain pipes 22 as escape paths of spring water, liquid nitrogen is led into freezing pipes 26 of the freezing jigs 21 to form a frozen area R around the freezing jigs 21.

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Inventors:

SAKAGUCHI KATSUHIKO
HATAE MASARU
UKAI TATSURO
ITO HIROSHI

Application Number:

JP15995396A

Publication Date:

January 13, 1998

Filing Date:

June 20, 1996

Export Citation:

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Assignee:

KUMAGAI GUMI CO LTD

International Classes:

E02D19/14; E21D9/04; (IPC1-7): E21D9/04; E02D19/14

Attorney, Agent or Firm:

Takayoshi Hayashi

Next Patent: AGF CONSTRUCTION METHOD