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Patent Searching and Data


Title:
SERVICE WELL, METHOD OF CONSTRUCTING SERVICE WELL, AND STRUCTURE OF SERVICE WELL
Document Type and Number:
Japanese Patent JP2009121063
Kind Code:
A
Abstract:

To provide a service well which is usable during and after works such as the construction of an underground structure and not damaged even if a horizontal load due to an earthquake acts thereon and also provide a method of constructing the service well.

This service well 1 includes: a column pipe 7 for collecting and lifting underground water; a filter part 11 installed around the lower end of the column pipe 7 and filled with sand allowing the underground water to pass therethrough; a water cutoff part 8 formed by filling the upper part of the filter part 11 with a water cutoff material; and a damping part 9 formed by filling the upper part of the water cutoff part 8 with a damping material. The column pipe 7 extends through the inside of a guide pipe 6b for drilling a well and reaches a sand layer 4.


Inventors:
Morio, Yoshihiko
Ueno, Takayuki
Sei, Hirotoshi
Application Number:
JP2007000293547
Publication Date:
June 04, 2009
Filing Date:
November 12, 2007
Export Citation:
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Assignee:
OHBAYASHI CORP
International Classes:
E02D19/10; E03B3/08; E21B43/00; E02D19/00; E03B3/00; E21B43/00