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《Chinese Journal of Underground Space and Engineering》 2014-01
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Ultimate Uplift Capacity of Strip Anchor Plates and Position of Failure Surfaces under Inclined Loads

Zhang Xiaoxi;Su Qian;School of Civil Engineering,Southwest Jiaotong University;Key Laboratory of High-Speed Railway Line Project of Ministry of Education,Southwest Jiaotong University;  
In this paper,the horizontal slice method is used to discuss the relation among the ultimate uplift capacity,the failure surface,the soil parameters and the uplift load direction with M-C yield criterion. According to the limit equilibrium approach,the uplift capacity is calculated by dividing soil around the strip anchor plate into slices with regarding the potential failure surface as a group of several sectional planes. Then the multivariate function used to calculate uplift capacity is established and optimized. An approach presented in this paper can be used to determine the failure surface shape and the magnitude of the ultimate uplift capacity of strip anchor plates. The results indicate that:( 1) uplift coefficient increases with internal friction angle,cohesion and the angle at vertical direction;( 2) the failure surface moves to the outside soil gradually with increasing the internal friction angle and cohesion.
【Fund】: 国家自然科学基金(51378441)
【CateGory Index】: TU476
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