Title:
FRACTURE PROCESSING PLANE DETECTING SYSTEM IN BEDROCK
Document Type and Number:
Japanese Patent JP2004293277
Kind Code:
A
Abstract:
To provide a detecting system for bedrock-fracture processing, by which it is possible to appropriately forecast dangerous places of bedrock collapse.
In a bedrock to be detected, at least 4 bore holes 4a-4d are provided near each other, and in at least 3 bore holes 4a-4c of them bedrock displacement measuring devices 6, 19, 30 with different detecting systems are installed for detection of a displacement in a bedrock. If measuring data of any of the displacement measuring devices 6, 19, 30 is judged to be exceeded above the predetermined threshold, a confirmation test for fracture plane in situ is conducted by using the remaining opened bore hole 4d out of the bore holes 4a-4d.
Inventors:
TAKAHASHI TERUAKI
SASAKI KAZUMASA
OSHIMA NORIFUSA
NAKAMURA YOSHINORI
MUTO SEIICHI
SASAKI KAZUMASA
OSHIMA NORIFUSA
NAKAMURA YOSHINORI
MUTO SEIICHI
Application Number:
JP2003127243A
Publication Date:
October 21, 2004
Filing Date:
May 02, 2003
Export Citation:
Assignee:
MUTO SEIICHI
International Classes:
E02D1/00; G01B11/16; G01B21/32; G01M11/00; (IPC1-7): E02D1/00; G01B11/16; G01B21/32; G01M11/00
Attorney, Agent or Firm:
Kenjiro Take