Title:
SPECIFYING METHOD OF POSITION OF DRILLING AND INVESTIGATION METHOD FOR BASEROCK
Document Type and Number:
Japanese Patent JP3270414
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide the specifying method of the position of drilling, cost of which is reduced and by which the positions of drilling of a plurality of pits drilled to a baserock can be specified easily without having an effect on the execution of works, and a baserock investigation method using the method.
SOLUTION: A baserock is photographed automatically as an image including a periphery every time the baserock is drilled by using an image recording device 8 operated while using the hydraulic pressure of a rock drill 5a as a trigger in the case of drilling by the rock drill 5a. Whether or not a drilled pit is positioned at any place is specified by comparing the image, a design drawing and the positional relationship of the pit and the periphery displayed or recorded.
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Inventors:
Ryoichi Hikima
Masayuki Yamashita
Koji Ishiyama
Junichi Tsukada
Masayuki Yamashita
Koji Ishiyama
Junichi Tsukada
Application Number:
JP6397399A
Publication Date:
April 02, 2002
Filing Date:
March 10, 1999
Export Citation:
Assignee:
Nishimatsu Construction Co., Ltd.
International Classes:
E21B1/26; E21B1/00; E21B7/02; E21B15/00; E21B19/08; (IPC1-7): E21B7/02; E21B1/26
Domestic Patent References:
| JP10317874A | ||||
| JP5156886A | ||||
| JP3137394A | ||||
| JP7259469A | ||||
| JP58138894A |
Other References:
【文献】特許2749561(JP,B2)
Attorney, Agent or Firm:
Hiroshi Arafune (1 person outside)
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