PIPE SET FOR DRAINAGE AND CONSTRUCTION METHOD FOR DRAINAGE

Title:

PIPE SET FOR DRAINAGE AND CONSTRUCTION METHOD FOR DRAINAGE

Document Type and Number:

Japanese Patent JP2009013694

Kind Code:

A

Abstract:

To provide a pipe set for drainage quickly and easily installable and surely applicable even when the hole is rough, and also to provide a construction method for drainage.

This pipe set for drainage for draining underground water from an earth during a tunneling operation comprises: a drain pipe 20 having a filter; a tubular packer 30 having a sealing part 36 and having an end part connected to connected to the drain pipe 20; and a connection part 40 for connecting the drain pipe and the packer. The packer 30 is of an expanded tube type in which a recessed part is protruded and enlarged in diameter by internal pressing. The sealing part 36 can destroy a sealing when necessary, and is not destroyed under the pressure required for enlarging the diameter of the packer.

More Like This:

JPS5460733	METHOD OF EXCAVATING ADIT BY SHIELD DRIVING METHOD
JP7193789	Steel pipe for ground reinforcement
JP3581332	Earth retaining equipment and open-cut method using it

Inventors:

AKITA KATSUJI
KITAHARA SHUSUKE
KITANO SENJI
IURA TOMOMI
ANAMI KOJI
IMOTO ATSUSHI
TANAKA HIDEHIRO

Application Number:

JP2007177709A

Publication Date:

January 22, 2009

Filing Date:

July 05, 2007

Export Citation:

Click for automatic bibliography generation Help

Assignee:

JRTT JAPAN
DENKI KAGAKU KOGYO KK
KFC LTD

International Classes:

E21D9/04; E21B17/14

Domestic Patent References:

JP2003147757A	2003-05-21
JP2006249657A	2006-09-21
JP2004150203A	2004-05-27
JP2002174099A	2002-06-21
JPH05187185A	1993-07-27

Attorney, Agent or Firm:

Eiji Saegusa

Previous Patent: HYDRAULIC CIRCUIT WITH MULTIPLE HYDRAULIC MOTORS

Next Patent: PILE HOLE EXCAVATING HEAD