Title:
RECHARGE CONSTRUCTION METHOD
Document Type and Number:
Japanese Patent JP3158168
Kind Code:
B2
Abstract:
PURPOSE: To discharge water of which suspended material is high in its turbidity in the groundwater pumped up at a pit excavation work or the like, and controlling to maintain the condensation capacity of a recharge well by automatic control.
CONSTITUTION: A lifting pipe 6 raised from a storage pump 5 of a pumping well 7 is connected with a water filling pipe 10 communicating to a recharge well 3, through a control device 1 having a turbidity sensor detecting turbidity of suspended material in the pumped water and a changeover valve 8. A drain pipe 11 is provided branching off from the intermediate part between the changeover valve 8 and the control device 1 having the turbidity sensor, and when the suspended material over the decided turbidity is detected by means of the control device 1, the changeover valve 8 is closed and the pumped water of high turbidity in suspended material is discharged outward through the drain pipe 11, and the pumped water under the decided turbidity is returned to the recharge well 3 through the water filling pipe 10. Hereby, clogging of the recharge well is possibly prevented, the condensation capacity of the recharge well can be favorably maintained for a long time, pit excavation or building of foundation is performed safely and surely, so that contribution to building of a structure of high workability, quality, and reliability, may be realized.
Inventors:
Toshiaki Ishise
Daiji Oda
Gen Kimura
Taketeru Fujii
Akira Morishima
Shinichi Sanada
Shozo Naemura
Seiichi Onodera
Kumakura Dori
Keiji Hiroi
Ebe Toshin
Daiji Oda
Gen Kimura
Taketeru Fujii
Akira Morishima
Shinichi Sanada
Shozo Naemura
Seiichi Onodera
Kumakura Dori
Keiji Hiroi
Ebe Toshin
Application Number:
JP34688092A
Publication Date:
April 23, 2001
Filing Date:
December 25, 1992
Export Citation:
Assignee:
TAKENAKA CORPORATION
Takenaka Civil Engineering Co., Ltd.
Civil Engineering Research Institute, Ministry of Construction
Advanced Construction Technology Center
Tokyu Construction Co., Ltd.
Aoki Construction Co., Ltd.
Takenaka Civil Engineering Co., Ltd.
Civil Engineering Research Institute, Ministry of Construction
Advanced Construction Technology Center
Tokyu Construction Co., Ltd.
Aoki Construction Co., Ltd.
International Classes:
E02D3/10; E03B3/15; E03B5/04; (IPC1-7): E02D3/10; E03B5/04
Domestic Patent References:
| JP60105706A | ||||
| JP63277322A | ||||
| JP3235814A | ||||
| JP649870A |
Attorney, Agent or Firm:
Masahiko Yamana
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