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Title:
CRUSHING METHOD OF SEWAGE PIPE AND REMOVAL METHOD OF SEWAGE PIPE
Document Type and Number:
Japanese Patent JP2015224498
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a crushing method of sewage pipe and a removal method of the sewage pipe, capable of surely breaking an existing sewage pipe in a present position.SOLUTION: A crushing method comprises a process of arranging a flexible pipe having an explosive device in a sewage pipe, a process of filling a pressure medium in the sewage pipe and a process of breaking the sewage pipe by detonating the explosive device, and comprises a process of inserting a traction member between the sewage pipe and two manholes adjacently arranged to the sewage pipe, a process of pulling a flexible pipe via the traction member in the other manhole via the inside of the sewage pipe from one manhole by installing the flexible pipe in the traction member, a process of filling the pressure medium in the sewage pipe, a process of pulling the explosive device in the flexible pipe and a process of breaking the sewage pipe by detonating the explosive device.

Inventors:
MURATA KENJI
KAWANO MAKOTO
YABUKI TAKESHI
IWASHITA SHUJI
Application Number:
JP2014110988A
Publication Date:
December 14, 2015
Filing Date:
May 29, 2014
Export Citation:
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Assignee:
NIPPON KOKI KK
LIFE LINE CO LTD
International Classes:
E03F3/02
Domestic Patent References:
JPS5316215B11978-05-30
JPS5316215B11978-05-30
JP2004353372A2004-12-16
JP2005016082A2005-01-20
JP2007146963A2007-06-14
JP2005002669A2005-01-06
JPH03209092A1991-09-12
JP346023874B
JPH1129389A1999-02-02
JP2008025257A2008-02-07
JP2004353372A2004-12-16
JP2005016082A2005-01-20
JP2007146963A2007-06-14
JP2005002669A2005-01-06
JPH03209092A1991-09-12
JP346023874B
JPH1129389A1999-02-02
JP2008025257A2008-02-07
Foreign References:
US6364036B12002-04-02
US6364036B12002-04-02
Attorney, Agent or Firm:
Furuya Fumio
Toshihide Mori



 
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