基于规范的滑坡支护计算机辅助设计

用VB编制了可提供多种滑坡稳定性计算方法和支护方案的计算机辅助设计程序。依据《长江三峡工程库区滑坡防治工程设计与施工技术规程》,软件将费伦纽斯法(Fellenius)、毕肖普法(Bishop)、简布法(Janbu)和条分法4种模型集成为一体,同时可对地震、孔隙水压力、渗透压力、附加荷载工况下滑坡稳定性和推力进行计算。对于工程中最常用的抗滑桩支护结构,采用文献[4]、[5]推导的针对不同岩土地质条件的"m-m"法、"m-K"法和"K-K"法计算桩内力的有限差分公式及文献[6]推导的锚定板挡土墙肋柱内力计算公式,并编制了支护结构内力计算程序模块。用户可根据具体的工程地质条件选择合适的支护方案,从而实现受力性能好、工程造价低、安全可靠等优点。

Computer Aided Design of Landslide Prevention Based on Specification

Based on the technical specification on design and construction of landslide prevention in the Three Gorges,A computer aided design software which may provide four stability calculation methods and three kinds of sliding-resistant structure is developed. It makes the complex design and calculation of sliding-resistant system accurate fast and reliable. The software, integrated in four methods (Fellenius, Bishop, Janbu and Transferring index), could fast and easily provide stability index and push force under the condition of earthquake, porous water pressure, seepage water pressure and other surface loading.Especially we use the finite difference method to analyze the internal forces of a whole anchor stabilizing pile.By this program, the user can select an adaptive sliding-resistant structure according to special engineering geologic condition to realize many advantages such as reliable quality, good mechanical performance and low construction cost.