Title:
CORE SAMPLING DEVICE, BORING APPARATUS, AND CORE SAMPLING METHOD
Document Type and Number:
WIPO Patent Application WO/2017/216852
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide a core sampling device that is capable of acquiring data for examining the accuracy of a sampled core, a boring apparatus using the core sampling device, and a core sampling method. A core sampling device (1) is provided with: a tubular core barrel (3) that includes a core sampling part (22) for sampling a ground core and that is attachable to/detachable from one end of the rod of a boring apparatus; and a first displacement meter (40) that measures the displacement of the core entering the core sampling unit (22).
Inventors:
KOMIYA KUNIMORI (JP)
MARUI ATSUNAO (JP)
YOKOTA SHUICHIRO (JP)
SHIMIZU KOJI (JP)
MARUI ATSUNAO (JP)
YOKOTA SHUICHIRO (JP)
SHIMIZU KOJI (JP)
Application Number:
PCT/JP2016/067563
Publication Date:
December 21, 2017
Filing Date:
June 13, 2016
Export Citation:
Assignee:
HI-TEC INC (JP)
International Classes:
E21B25/00; E02D1/04
Foreign References:
| US20120145457A1 | 2012-06-14 | |||
| JP2003279452A | 2003-10-02 | |||
| JP2008126532A | 2008-06-05 |
Attorney, Agent or Firm:
MIYATA, Nobumichi et al. (JP)
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