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Title:
PENETRATION TEST SYSTEM, SOIL QUALITY DETERMINATION DEVICE, PENETRATION TEST METHOD AND COMPUTER PROGRAM
Document Type and Number:
Japanese Patent JP2015224489
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To reduce discrepancies in determination results due to differences in the skill levels of workers or the environmental conditions when SWS tests were performed.SOLUTION: A penetrometer 2 includes a microphone for collecting sounds in a resonant chamber installed in a screw point 10 penetrated in a ground. A soil quality determination device 5 includes an extraction part that extracts sound signals to be inspected from sounds collected by the microphone, based on the resonance frequency suited for the size of the resonant chamber, and a determination part that determines the soil quality based on the sound signals to be inspected that are extracted by the extraction part and standard data.

Inventors:
SHIMOMURA SHUICHI
SAKO NORIAKI
KAWAMURA MASAFUMI
SHIMOMURA YUKIO
Application Number:
JP2014110652A
Publication Date:
December 14, 2015
Filing Date:
May 28, 2014
Export Citation:
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Assignee:
UNIV NIHON
International Classes:
E02D1/02; G01N3/40
Domestic Patent References:
JPS63279140A1988-11-16
JP2001066180A2001-03-16
JP2005010719A2005-01-13
JP2004137813A2004-05-13
JPS63279140A1988-11-16
JP2001066180A2001-03-16
JP2005010719A2005-01-13
JP2004137813A2004-05-13
Foreign References:
US20050204809A12005-09-22
US20050204809A12005-09-22
Attorney, Agent or Firm:
Masatake Shiga
Mitsunaga Igarashi
Junichi Kobayashi