锚固深度对双排抗滑桩力学性能影响

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Abstract According to the problem of selection of anchorage depths of front-row and back-row piles in double-row anti-slide piles in Hongyan landslide project，a simplified calculation model is built based on the FLAC3D program. In this model，pile-soil interaction is considered by applying displacement on the boundary of sliding mass to simulate the horizontal thrust force acting on anti-slide piles. Based on this numerical model，variations of deflection，bending moment，shear force and sliding resistance of the double-row anti-slide piles are studied under different anchorage depths of the front-row and back-row anti-slide piles. It is found that the deflection，bending moment，shear force and sliding resistance are affected by the anchorage depths of the front-row and back-row anti-slide piles；what?s more，the affected degree is related to the values of displacement applied on the boundary of sliding mass.

Key words： pile foundations anchorage depth double-row anti-slide piles numerical analysis

Received: 28 May 2013

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https://rockmech.whrsm.ac.cn/EN/Y2013/V32/I10/1999

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