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Title:
SOIL SAMPLING METHOD AND GROUNDWATER GUIDE PIPE
Document Type and Number:
Japanese Patent JP2016188569
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a simple soil sampling method for sampling a soil under a part of an underground structure pressurized by groundwater while preventing groundwater from uncontrollably spouting into the underground structure at a low cost, and to provide a groundwater guide pipe used for implementing the method.SOLUTION: The soil sampling method includes the steps: drilling a soil sampling hole 100 using a drill 6 in a part fs of an underground structure under which a sampling object soil is positioned and which is pressured by groundwater; allowing spouting groundwater to flow into a receiving container 4 from a groundwater outlet 31 of a groundwater guide pipe 3; discharging the groundwater to a predetermined position using a groundwater discharge unit 5; sampling the soil using a boring machine 7 through the hole 100; and closing the hole using a stop valve 8 or the like.SELECTED DRAWING: Figure 12

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Inventors:
YAMAUCHI TAKAYOSHI
Application Number:
JP2016062518A
Publication Date:
November 04, 2016
Filing Date:
March 25, 2016
Export Citation:
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Assignee:
EUROFINS NIHON KANKYO K K
International Classes:
E02D1/04
Domestic Patent References:
JP2004339820A2004-12-02
JPH05112927A1993-05-07
JPH0533332A1993-02-09
JPH06316921A1994-11-15
JPH059926A1993-01-19
JPH10102790A1998-04-21
JPH10102477A1998-04-21
JP2000028034A2000-01-25
JP2004225442A2004-08-12
JPH06185080A1994-07-05
Foreign References:
US4832535A1989-05-23
CN102839676A2012-12-26
Attorney, Agent or Firm:
Masao Tanikawa
Morita Takuo



 
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