Title:
UNDERGROUND WATER PUMPING METHOD
Document Type and Number:
Japanese Patent JP3655883
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To effectively collect and pump water by previously refining underground water so that the underground water smoothly and easily flows toward the water feeding part side in the surrounding ground of a casing pipe before pumping the underground water collected in the casing pipe buried in the ground.
SOLUTION: A ground refining process is performed for refining the surrounding ground 1 so as to form a cleaved water feeding passage by cleaving the surrounding ground 1 under the casing pipe 3 by pressurized water by forcibly sending the pressurized water in the ground 1 from a water feeding part 2 arranged in a lower end part of the casing pipe 3 before pumping the flowed-in underground water by a pumping means 4 by making the underground water flow in from the water feeding part 2 arranged in the lower end part of the casing pipe 3 buried in the ground 1. After performing this ground refining process, a regular pumping process is performed for pumping the underground water by making the underground water flow in the casing pipe 3 from the water feeding part 2 via the cleaved water feeding passage formed in the surrounding ground 1 by the pumping means 4.
Inventors:
Shigekichi Takahashi
Shuichi Matsumura
Shuichi Matsumura
Application Number:
JP2002067559A
Publication Date:
June 02, 2005
Filing Date:
March 12, 2002
Export Citation:
Assignee:
Naruyuki Industry Co., Ltd.
Limited company Asahi Techno
Limited company Asahi Techno
International Classes:
E02D3/10; (IPC1-7): E02D3/10
Domestic Patent References:
| JP11223177A |
Foreign References:
| WO2002012637A1 |
Attorney, Agent or Firm:
Keisei Nishikawa
Atsuo Mori
Atsuo Mori