Title:
トンネルの施工方法
Document Type and Number:
Japanese Patent JP7503355
Kind Code:
B2
Abstract:
To provide a tunnel construction method that does not increase the number of work procedures, does not reduce construction speed, and reduce cost of equipment in tunnel construction.SOLUTION: In a tunnel construction method, steps are performed, the steps including: a step of blasting and drilling a pit face K; a step of crushing muck Za generated by drilling with a crusher 2 and then loading the muck Za on a belt 4c via a tail piece truck 3; a step of calculating a current pit face progress length MT2 by adding a drilling length Me to a previous pit face progress length MT1 of before drilling; a step of determining whether the current pit face progress length MT2 is equal to or longer than an intermediate frame length S when a unit construction cycle ends; and a step of, in a case where the current pit face progress length MT2 is equal to or longer than the intermediate frame length S, deciding how many times the current pit face progress length MT2 is longer than the intermediate frame length S, advancing the crusher 2 and the tail piece truck 3 by the times, and installing an additional intermediate frame 4a to extend the belt 4c.SELECTED DRAWING: Figure 9
Inventors:
Yuki Takahashi
Application Number:
JP2021023551A
Publication Date:
June 20, 2024
Filing Date:
February 17, 2021
Export Citation:
Assignee:
Okumura Gumi Co., Ltd.
International Classes:
E21D9/12; E21F13/10
Domestic Patent References:
| JP2018178638A | ||||
| JP2020112006A | ||||
| JP6212889A | ||||
| JP2008138385A |
Attorney, Agent or Firm:
Toshiro Ohata