A CALCULATION METHOD FOR BEARING CAPACITY OF FOUNDATION UNDER DEEPLY EXCAVATED OR HIGH FILLED SLOPES

SONG Erxiang; LI Xianjie; FU Hao

doi:10.13204/j.gyjzG20062004

Volume 50 Issue 10

Jan. 2021

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SONG Erxiang, LI Xianjie, FU Hao. A CALCULATION METHOD FOR BEARING CAPACITY OF FOUNDATION UNDER DEEPLY EXCAVATED OR HIGH FILLED SLOPES[J]. INDUSTRIAL CONSTRUCTION, 2020, 50(10): 87-93. doi: 10.13204/j.gyjzG20062004

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SONG Erxiang, LI Xianjie, FU Hao. A CALCULATION METHOD FOR BEARING CAPACITY OF FOUNDATION UNDER DEEPLY EXCAVATED OR HIGH FILLED SLOPES[J]. INDUSTRIAL CONSTRUCTION, 2020, 50(10): 87-93. doi: 10.13204/j.gyjzG20062004

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A CALCULATION METHOD FOR BEARING CAPACITY OF FOUNDATION UNDER DEEPLY EXCAVATED OR HIGH FILLED SLOPES

doi: 10.13204/j.gyjzG20062004

Key Laboratory of Civil Engineering Safety and Durability of Ministry of Education, Department of Civil Engineering, Tsinghua University, Beijing 100084, China

Received Date: 2020-06-20

Abstract

Abstract

With regard to foundation bearing capacity evaluation related to the basal stability of deep excavation and high filled steep slopes, the weak points of the methods in current engineering practice were discussed, and then an improved calculation method was proposed with reference to the idea first presented by Terzaghi. The improved method took account of the shear stress on the vertical fracture surface in the slope, and made it clear that the foundation bearing capacity should be calculated according to the unilateral slip failure mode, and adopted the more suitable second definition of the safety factor. A complete set of formulas was given, and its rationality and accuracy were validated through comparative calculations with the much refined method of finite element limit analysis.
- basal heave,
- high-steep slope,
- foundation bearing capacity,
- unilateral slip failure

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References(12)

References

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中华人民共和国住房和城乡建设部.建筑基坑支护技术规程:JGJ 120-2012[S].北京:中国建筑工业出版社,2012.

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