Title:
HAZARDOUS MATERIAL SEARCH METHOD BY CASING-TYPE EARTH RETAINING CONSTRUCTION, AND CASING-TYPE EARTH RETAINING CONSTRUCTION
Document Type and Number:
Japanese Patent JP2017129388
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a hazardous material search method by a casing-type earth retaining construction, capable of shortening a construction period concerning a hazardous material search and accurately searching for hazardous materials.SOLUTION: This hazardous material search method that includes a step for confirming and searching for a magnetic abnormality detected through magnetic searching includes: a step for press-fitting a casing-type earth retaining construction to which a magnetic sensor can be attached into the ground so as to surround the magnetic abnormality; a step for drilling and removing sands/rocks inside the casing-type earth retaining construction after press-fitting of the casing-type earth retaining construction in the press-fitting step; and a step for measuring magnetism in the ground by using the magnetic sensor attached to the casing-type earth retaining construction, the step being executed in parallel with the press-fitting step and the drilling and removing step.SELECTED DRAWING: Figure 3
Inventors:
UEHARA SUSUMU
TAHIRA NAO
TAHIRA NAO
Application Number:
JP2016007472A
Publication Date:
July 27, 2017
Filing Date:
January 18, 2016
Export Citation:
Assignee:
HOSHIN KENSETSU CO LTD
International Classes:
G01V3/08; E02D1/00; E21B7/20
Domestic Patent References:
| JP2014044114A | 2014-03-13 | |||
| JP2014157037A | 2014-08-28 | |||
| JP2006225940A | 2006-08-31 |
Attorney, Agent or Firm:
Otsubo