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
Citation:
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
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
Citation:
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
Key Laboratory of Civil Engineering Safety and Durability of Ministry of Education, Department of Civil Engineering, Tsinghua University, Beijing 100084, China
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.
TERZAGHI K. Theoretical Soil Mechanics[M]. New York:John Wiley and Sons, 1943.
李广信,张丙印,于玉贞. 土力学[M].2版.北京:清华大学出版社,2013.
VERRUIJT A. Soil Mechanics[M]. Delft:Delft University of Technology, 2012.
SLOAN S W. Lower Bound Limit Analysis Using Finite Elements and Linear Programming[J]. International Journal for Numerical Analysis Methods of Geomechauics, 1988(12):61-77.
SLOAN S W. Upper Bound Limit Analysis Using Finite Elements and Linear Programming[J]. International Journal for Numerical Analysis Methods of Geomechauics, 1989(13):263-282.