Abstract
The shape of rapture surface for shallow anchors was presented and the effects of parameters on the shape of rapture surface were analyzed. Based on the generalized nonlinear failure criterion and the limit equilibrium principle, an approach, which takes into account the shape of rapture surface, dip angle of shallow anchors, and varieties of rock and soil mass, is proposed. The effects of different parameters on ultimate uplift force of shallow anchors are discussed. In order to validate the practicability of the proposed formula, a comparison between the theoretical solutions and local test results is conducted. The agreement shows that the proposed formula is effective. The results of the proposed approach show that the ultimate uplift capacity of shallow anchor increases nonlinearly with the shape coefficient linearly increasing. The values of ultimate uplift force local test are in the range of the results of the proposed method with shape coefficient from 0 to 1.
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