SAMPLING DEVICE, CONNECTING BODY OF SAMPLING DEVICES, AND MANUFACTURING METHOD OF SOIL CEMENT IMPROVEMENT BODY

Japanese Patent JP2017048508

A

PROBLEM TO BE SOLVED: To provide a sampling device capable of sampling a high-viscosity fluid material such as soil cement, at the same time suppressing clogging by a part of the fluid material.SOLUTION: A sampling device 10A is for sampling a part of a fluid material in a ground, and includes: a cylinder 11A closed on both ends and having a sampling hole 12A and a ventilation hole 15A formed at separate locations in an axial direction; a piston 41A disposed inside the cylinder 11A and movable in the axial direction; a protective case 21A connected to the top end of the cylinder 11A; an actuator 51A driving the piston 41A in the axial direction; and a check valve 16A provided on the ventilation hole 15A. The actuator 51A is a hydraulic cylinder having a cylinder tube 52A inside the protective case 21A and a piston rod moving forward/backward from/into the cylinder tube. A connecting body of sampling devices is assembled by connecting a plurality of sampling devices configured as the sampling device 10A in a vertical direction.SELECTED DRAWING: Figure 2

ARAKAWA MAKOTO
MIZUMOTO MINORU
AKIYAMA HITOSHI

JP2015170184A

March 09, 2017

August 31, 2015

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OHBAYASHI CORP
SWEET INC

E02D1/04; E02D3/12

JP2006030113A	2006-02-02
JPH03229127A	1991-10-11
JP2012102557A	2012-05-31
JP2011219969A	2011-11-04
JPH10204861A	1998-08-04
JP2002054129A	2002-02-20
JP2012237192A	2012-12-06
JP2001234687A	2001-08-31
JP2004045081A	2004-02-12

US1896106A

1933-02-07

Isshiki International Patent Service Corporation

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