Title:
ロックボルト用孔の削孔方法及び削孔作業車
Document Type and Number:
Japanese Patent JP7071797
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a method and a work vehicle for drilling a hole for a rock bolt, which enable the hole for the rock bolt to be drilled without a collapse of a peripheral wall of the hole drilled in a slope face.SOLUTION: A method for drilling a hole for a rock bolt includes: a rock bolt hole drilling step of drilling the hole for the rock bolt by using a drilling apparatus comprising a drilling machine having a bit attached to a tip part of a pipe-like casing rod; a hardener infilling step of infilling a hardener into a space between the hole for the rock bolt and the casing rod; a hardener hardening step of hardening the infilled hardener; and an extraction step of extracting the casing rod after the hardener hardening step.SELECTED DRAWING: Figure 1
Inventors:
Toshihito Okamoto
Application Number:
JP2016168895A
Publication Date:
May 19, 2022
Filing Date:
August 31, 2016
Export Citation:
Assignee:
Toshihito Okamoto
International Classes:
E02D5/80; E21B6/04; E02D17/20; E21D20/00
Domestic Patent References:
| JP8060976A | ||||
| JP2012062655A | ||||
| JP2002089164A | ||||
| JP2013014906A | ||||
| JP2013060697A | ||||
| JP2000273855A | ||||
| JP4042520B2 | ||||
| JP2003184499A | ||||
| JP10140959A | ||||
| JP10266763A |
Attorney, Agent or Firm:
Mitsuyasu Miura