Title:
CORRECTION SHEAR THEORY CALCULATION METHOD FOR JACKING FORCE IN VERTICAL JACKING METHOD CONSTRUCTION PROCESS
Document Type and Number:
WIPO Patent Application WO/2023/226237
Kind Code:
A1
Abstract:
Disclosed in the present invention is a correction shear theory calculation method for jacking force in a vertical jacking method construction process. The method comprises: firstly analyzing components of the jacking force: according to the vertical jacking method construction process, determining that the jacking force should be equal to the sum of head-on resistance, the frictional resistance between pipes and soil, the self-weight of vertical pipes and the water pressure above the vertical pipes; back-calculating n values at different jacking distances by using a soil shear failure method, the n values being the ratio of the radius Rc of a top surface of a circular truncated-cone-shaped failure area to the outer radius r of the vertical pipes, and correcting a shear failure model area in the soil shear failure method according to a change rule of the n values with the increase of the jacking distances; determining the head-on resistance according to the calculated n values in combination with the corrected shear failure model for the jacking force in the vertical jacking method; determining the self-weight of the vertical pipes, the water pressure above the vertical pipes and the frictional resistance between the pipes and the soil according to the soil shear failure method; correcting the jacking force in a formation stage of the failure area, and determining a correction coefficient m; and finally, calculating the corrected jacking force.
Inventors:
WANG XIAO (CN)
WEI XINJIANG (CN)
WEI GANG (CN)
ZHU CHENGWEI (CN)
ZHANG LISHA (CN)
ZHANG SHUYUAN (CN)
MA JINGHAO (CN)
ZHANG ZENAN (CN)
WEI XINJIANG (CN)
WEI GANG (CN)
ZHU CHENGWEI (CN)
ZHANG LISHA (CN)
ZHANG SHUYUAN (CN)
MA JINGHAO (CN)
ZHANG ZENAN (CN)
Application Number:
PCT/CN2022/117727
Publication Date:
November 30, 2023
Filing Date:
September 08, 2022
Export Citation:
Assignee:
ZHEJIANG CITY UNIV (CN)
International Classes:
G06F30/20; G06F17/18; G06F113/14; G06F119/14
Foreign References:
| CN114925528A | 2022-08-19 | |||
| CN111783025A | 2020-10-16 | |||
| CN105512411A | 2016-04-20 | |||
| JP2020016012A | 2020-01-30 |
Other References:
WANG SHOUSHENG, GE CHUNHUI: "Study of Vertical Pipe Jacking Calculation Method", SPECIAL STRUCTURES, vol. 26, no. 5, 31 October 2009 (2009-10-31), pages 18 - 21, XP009550740, ISSN: 1001-3598
YAN ZIHAI; ZHOU FENGMIAO; WEI XINJIANG; WANG XIAO; WEI GANG: "Review and Prospects on Standpipe Lifting Method in Shield Tunnels", MODERN TUNNELLING TECHNOLOGY, ZHONGTIE XI'NAN KEXUE YANJIUYUAN, CN, vol. 55, no. S2, 30 November 2018 (2018-11-30), CN , pages 108 - 120, XP009550845, ISSN: 1009-6582, DOI: 10.13807/j.cnki.mtt.2018.S2.014
YAN ZIHAI; ZHOU FENGMIAO; WEI XINJIANG; WANG XIAO; WEI GANG: "Review and Prospects on Standpipe Lifting Method in Shield Tunnels", MODERN TUNNELLING TECHNOLOGY, ZHONGTIE XI'NAN KEXUE YANJIUYUAN, CN, vol. 55, no. S2, 30 November 2018 (2018-11-30), CN , pages 108 - 120, XP009550845, ISSN: 1009-6582, DOI: 10.13807/j.cnki.mtt.2018.S2.014
Attorney, Agent or Firm:
HANGZHOU QIUSHI PATENT OFFICE CO., LTD. (CN)
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