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Title:
GROUNDWATER CATCHMENT STRUCTURE AND GROUNDWATER CONDUCTION STRUCTURE
Document Type and Number:
Japanese Patent JP2012177277
Kind Code:
A
Abstract:

To provide a groundwater catchment structure and a groundwater conduction structure which have less impact on a construction period.

In a groundwater catchment structure, an earth retaining wall 13 configured by a solidification material 14 and steel core materials 15 arranged inside the solidification material at a prescribed interval is constructed in a manner that divides an underground permeable layer to collect groundwater through a gap between an internal earth retaining wall at an excavation side and the underground water permeable layer. The groundwater catchment structure uses a water catchment device 11 which has: a steel water catchment box 21 with an opening section on one face; a screen pipe (a screen section) 23 arranged inside the steel water catchment box; and a first communication hole 24 installed inside the steel water catchment box so as to be communicated with the screen pipe. The steel water catchment box is fixed to the earth retaining wall in a manner that makes the opening section thereof face the internal earth retaining wall with a peripheral portion thereof fixed thereto at a depth where the opening section can be placed in the underground water permeable layer. The first communication hole of the steel water catchment box can be connected with a water passage pipe 33.


Inventors:
EGASHIRA MASAKUNI
NISHIMURA SHINICHI
KOSAKA NOBUAKI
KUBO TORU
HIRABAYASHI TAKEKI
KOIDE TARO
SHOJI TATSUHIRO
Application Number:
JP2011041657A
Publication Date:
September 13, 2012
Filing Date:
February 28, 2011
Export Citation:
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Assignee:
SHIMIZU CONSTRUCTION CO LTD
International Classes:
E02D31/02; E02D29/12
Domestic Patent References:
JP2007100416A2007-04-19
JP2002021080A2002-01-23
JPH07138939A1995-05-30
JP2008081942A2008-04-10
JPH10317367A1998-12-02
JP2007100416A2007-04-19
JP2002021080A2002-01-23
JPH07138939A1995-05-30
JP2008081942A2008-04-10
Attorney, Agent or Firm:
Masatake Shiga
Tadashi Takahashi
Takashi Watanabe
Yoshifumi Saeki