|
Abstract Combining the slope geological hazard control engineering in the repairman group living community of Changting branch of Highway Administration Bureau of Longyan city，Fujian province，firstly，the shear strength indices of the slope soil are obtained through back analysis by using ABAQUS program. Secondly，a lot of real large-scale three-dimensional(3D) finite element models in different design cases of anti-slide piles are established in supercomputer. Then，the relationships between the safety factors of soil slopes and pile lengths，as well as pile diameters，pile spacing，are obtained by using 3D strength reduction FEM. And the bending moment diagrams of the piles are also obtained. Meanwhile，the distribution laws of earth pressure surrounding the anti-slide piles are revealed. It is illustrated that because of the existence of soil arching effect，there are differences between earth pressure surrounding the anti-slide piles and that with laterally crown loading piles located in horizontal strata. At last，based on comprehensive comparison of a large number of test computation cases，the optimal design case of anti-slide piles is obtained. The method can be for references in the design of anti-slides piles for large and medium scale slopes(landslides).
|
|
Received: 28 April 2012
|
|
|
|
2012, Vol. 31 
