Title:
遮水構造の水抜き装置及び水抜き方法
Document Type and Number:
Japanese Patent JP5648498
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a device capable of effectively and quickly draining water accumulated between a first and a second impervious sheets.SOLUTION: A drain device 1 for an impervious structure, where impervious sheets 37 and 39 are doubly laid on an inner surface of a water shielding object 31, comprises: a water collection section 6 which is installed at a lowest section 33 of the water shielding object 31, communicated with a space between a first and a second impervious sheets 37 and 39, and kept in an air tight state; a gas introduction means 25 which is installed at least one location in the water shielding object 31 to introduce air or gas having pressure higher than the air into the space between the first and the second impervious sheets 37 and 39; and a drainage means 15 which collects water from the space between the first and the second impervious sheets 37 and 39 into the water collection section 6 by reducing the pressure therein and drains the water out of the water collection section 6 by suctioning the collected water.
Inventors:
柴田 健司
石田 道彦
石田 道彦
Application Number:
JP2011014444A
Publication Date:
January 07, 2015
Filing Date:
January 26, 2011
Export Citation:
Assignee:
株式会社大林組
International Classes:
E02D19/12; B09B1/00
Attorney, Agent or Firm:
All international patent business corporation