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| INFLUENCE OF ANCHORAGE DEPTH ON MECHANICAL BEHAVIOUR OF DOUBLE-ROW ANTI-SLIDE PILES |
| YU Yang1，SUN Hongyue2，SHANG Yuequan1 |
(1. College of Civil Engineering and Architecture，Zhejiang University，Hangzhou，Zhejiang 310058，China；
2. Ocean College，Zhejiang University，Hangzhou，Zhejiang 310058，China) |
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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.
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Received: 28 May 2013
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2013, Vol. 32 
