Title:
METHOD FOR CALCULATING SLOPE STABILITY LIMIT EQUILIBRIUM BASED ON INTER-SLICE NORMAL FORCE DISTRIBUTION
Document Type and Number:
WIPO Patent Application WO/2020/199941
Kind Code:
A1
Abstract:
The present invention relates to a method for calculating slope stability limit equilibrium based on inter-slice normal force distribution, and belongs to the technical field of slope stability. Regarding traditional limit equilibrium methods of slices not taking into account inter-slice normal force distribution when analysing slope stability, i.e. the effect of different line of thrust acting positions on the factor of safety, the present method further takes into account inter-slice normal force distribution, i.e. the distribution of line of thrust acting positions, on the basis of existing limit equilibrium methods of slices; the proposed improved method for calculating limit equilibrium takes into account inter-slice normal force distribution characteristics, and using the improved limit equilibrium Spencer's method provided in the present invention to calculate a deep concave slip surface, it was found that there is a large error in the factor of safety between the improved limit equilibrium method and traditional limit equilibrium methods, the error being as high as around 20%; the method of the present invention is simple and reliable and provides more accurate results for slope stability analysis, increasing engineering safety and saving construction costs, improving the economic benefits of engineering.
Inventors:
WU SHUNCHUAN (CN)
HAN LONGQIANG (CN)
ZHANG XIAOQIANG (CN)
CHENG HAIYONG (CN)
REN YI (CN)
HAN LONGQIANG (CN)
ZHANG XIAOQIANG (CN)
CHENG HAIYONG (CN)
REN YI (CN)
Application Number:
PCT/CN2020/080451
Publication Date:
October 08, 2020
Filing Date:
March 20, 2020
Export Citation:
Assignee:
UNIV KUNMING SCIENCE & TECHNOLOGY (CN)
International Classes:
E02D1/00; E02D17/20
Foreign References:
| CN109914379A | 2019-06-21 | |||
| CN107330224A | 2017-11-07 | |||
| CN103485353A | 2014-01-01 | |||
| VN10018061B | ||||
| JP2015071858A | 2015-04-16 |
Other References:
EDITED BY WU, SHUNCHUAN: "Non-official translation: Slope Engineering", METALLURGICAL INDUSTRY PRESS, no. September 2017, 1st edition, 30 September 2017 (2017-09-30), DOI: 20200608195813Y
LIU, XIUJUN: "The Improvement of Spencer Method on Slope Stability Analysis", GEOTECHNICAL ENGINEERING TECHNIQUE, vol. 30, no. 4,, 31 August 2016 (2016-08-31), ISSN: 1007-2993, DOI: 20200608200002Y
LIU, XIUJUN: "The Improvement of Spencer Method on Slope Stability Analysis", GEOTECHNICAL ENGINEERING TECHNIQUE, vol. 30, no. 4,, 31 August 2016 (2016-08-31), ISSN: 1007-2993, DOI: 20200608200002Y
Attorney, Agent or Firm:
KUNMING HEZHONG ZHIXIN INTELLECTUAL PROPERTY OFFICE (CN)
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