| In order to adapt the rapid development of conty economy and solve the problem of less land for construction, the Fugu county has already completed large areas of digging mountain, filling ditch and large-scale constuction projects. The west side of the mountain in Fugu county has been fomed and widely developed extensive bedding landslip in bedrock, Which is controled by the tectonic(monoclinic tectonic with the dip of NW), strta structure(the interbeded of sandstone and mudstone in coal formations) and weak structure zone(mudstone) and induced by human’s engineering activity of excavating at the foot of slope and stripping overlying hard curst. For these landslide, the integrated governance program of reducing load, anti-slide pile, slope protection and drainage system is adapted. In order to confirm the technical feasibility and economic rationality program, taking the Yinta ditch lanslide which is a typical bedding landslip in bedrock as an exzample to optimaze the design of anti-slide pile and comparative analze the program. From all the above, it can be conluded the following conclusions.Firstly,it can be concluded that the descendingorder of effect of the performance against the design parameters of anti-slide pile is pile spacing, anchoring depth and lengh and width of pile section. Secondly, based on the results of the sensitivity analysis to univariate analyze the design elements of anti-slide pile, it can be concluded that the variation law of inernal force of anti-slide pile with the design parametes and property values of the spacing of pile and anchorage depth. Thirdly, by writing a computer program to caculate the optimal value of cross-sectional dimensions of the pile, in which the project cost is act as the objective function and the cross-sectional dimensions of the pile is act as the variables. Finally, by analyzing the program of optimal program and the oringinal, it can be concluded that the optimal program of anti-slide pile. |
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