Title:
METHOD FOR PREDICTING INFLUENCE OF CONSTRUCTION OF PIPE-JACKING TUNNELING MACHINE ON SAFETY OF OVERLYING PIPELINE
Document Type and Number:
WIPO Patent Application WO/2022/199717
Kind Code:
A1
Abstract:
A method for predicting the influence of construction of a pipe-jacking tunneling machine on the safety of an overlying pipeline. The method comprises: first, by means of a diameter B0 of a cutter head of a tunneling machine, and a soil pressure p0 which is applied when the cutter head of the tunneling machine cuts a soil body, successively determining an equivalent width b0 of the cutter head of the tunneling machine, and an expression p(z), which is generated at a pipeline by a soil cutting pressure of the cutter head of the tunneling machine, of a horizontal additional stress; then, determining the allowable tensile strength [σt] of a pipeline material, the maximum tensile stress σt generated by the cutter head of the tunneling machine for the pipeline, and the maximum deformation amount δ generated by the cutter head of the tunneling machine for the pipeline; and finally, comparing [σt], σt and δ, and determining the influence of the cutter head of the tunneling machine on the safety of the pipeline. By means of the method of the present invention, provided is a method for predicting the influence of construction of a pipe-jacking tunneling machine on the safety of an overlying pipeline, and the method has a reliable prediction effect and an accurate prediction result.
Inventors:
ZHAO JIA (CN)
XU PEIPEI (CN)
NING DONGXUE (CN)
MENG SHUAI (CN)
LIU JIA (CN)
ZHANG XUEFEI (CN)
LU XIAOFAN (CN)
CHEN HAO (CN)
WU QIANG (CN)
HOU FEI (CN)
LI JIAXI (CN)
XIAO ZHITONG (CN)
LIN GUO (CN)
TANG NING (CN)
LI DEZHU (CN)
LIU YUNSHENG (CN)
YANG CHUNGUANG (CN)
XU PEIPEI (CN)
NING DONGXUE (CN)
MENG SHUAI (CN)
LIU JIA (CN)
ZHANG XUEFEI (CN)
LU XIAOFAN (CN)
CHEN HAO (CN)
WU QIANG (CN)
HOU FEI (CN)
LI JIAXI (CN)
XIAO ZHITONG (CN)
LIN GUO (CN)
TANG NING (CN)
LI DEZHU (CN)
LIU YUNSHENG (CN)
YANG CHUNGUANG (CN)
Application Number:
PCT/CN2022/096036
Publication Date:
September 29, 2022
Filing Date:
May 30, 2022
Export Citation:
Assignee:
CHINA RAILWAY NO 9 GROUP CO LTD (CN)
International Classes:
G06F30/20; G06F17/00
Foreign References:
| CN110378069A | 2019-10-25 | |||
| CN102129499A | 2011-07-20 | |||
| CN110874512A | 2020-03-10 | |||
| KR20200036961A | 2020-04-08 | |||
| CN113283106A | 2021-08-20 |
Attorney, Agent or Firm:
BEIJING WUZHOUYANGHE & PARTNERS (CN)
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