Title:
METHOD AND DEVICE FOR RETURNING UNDERGROUND WATER AGAIN UNDERGROUND BY PUMPING UP UNDERGROUND WATER
Document Type and Number:
Japanese Patent JP3445786
Kind Code:
B
Abstract:
PROBLEM TO BE SOLVED: To smoothly and efficiently return water in the ground without clogging the ground by an oxide granular material of dissolved iron in returning the pumped-up water.
SOLUTION: This method pumps up underground water flowing inside a pumping casing pipe 2 buried in the ground 1, and returns the pumped-up underground water again underground via a return casing pipe 3 buried in the ground 1. A series of pumping water return passage 4 is formed for returning the water in the ground 1 by pressurization via the return casing pipe 3 by pumping-up the underground water flowing inside the pumping casing pipe 2. This series of pumping water return passage 4 is formed as a sealed passage cut off from the atmosphere to prevent the water from touching the atmosphere before returning in the ground 1 via the return casing pipe 3 by pumping up the underground water from the pumping casing pipe 2.
Inventors:
Takahashi, Mokichi
Matsumura, Shuichi
Matsumura, Shuichi
Application Number:
JP2001000054988
Publication Date:
June 27, 2003
Filing Date:
February 28, 2001
Export Citation:
Assignee:
SEIKO KOGYO KK
ASAHI TECHNO:KK
NISHIMATSU CONSTR CO LTD
NIPPON KENSETSU KIKAI SHOJI KK
ASAHI TECHNO:KK
NISHIMATSU CONSTR CO LTD
NIPPON KENSETSU KIKAI SHOJI KK
International Classes:
E02D19/10; E02D3/10; E02D19/00; E02D3/00; (IPC1-7): E02D3/10; E02D19/10