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Abstract Based on the finite element program ANSYS，a finite element model with double-row anti-slide piles was established. The piles tip connection methods for the lateral displacement are analyzed，including bending moment and shear stress of piles，and the optimal piles tip connection. Piles tip connection methods include no connection，the row connection，the front-and-back rows connection and all connection. Compared with the four methods，it can seen that the front-and-bank rows connection is optimal. Using the front-and-bank rows connection and all connection methods，the double-row piles have better anti-slide effect. But using the all connection，the cost of anti-slide piles will increase. Two engineering examples which are respectively the row connection and the front-and-back rows connection，are simulated. Through monitoring and analysis of the stresses and displacements of the piles，it is found that the results are consistent with that of finite element analysis. So the front-and-bank rows connection of piles tip joint in the design can be suggested.
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Received: 07 January 2009
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