AutoCAD二次开发案例——结构面赤平极射投影图

重庆地形多属山区地形,工程建设中经常会存在边坡问题。在岩土工程勘察中对岩质边坡的定性评价,多采用结构面赤平极射投影图进行稳定性分析。根据投影图中各圆弧线的相互关系,即可判断边坡的类型,评价边坡的稳定性及破坏方式。而采用人工制图的方式是件费时费力的事情,该文采用Auto LISP语言编制的结构面赤平极射投影图制图程序,可直接在Auto CAD窗口中运行直接成图,极大地提高工作效率。

A Redevelopment Case of AutoCAD---Stereographic Projection Map of Structural Plane

The terrain of Chongqing is mostly mountainous, which posts frequent slope construction problems in projects. In geotechnical engineering in-vestigation, stereographic projectionmap of structural plane are usually adopted to make a stability analysis for qualitative evaluation of the rock slope. According to the relationship among the circular arc lines, the slope type can be determined, and the stability and failure mode of the slope can also be e-valuated. It takes much time and manpower if adopt the artificial mapping method, and the cartographic program of stereographic projectionmap of struc-tural plane by AutoLISP language can run directly into the diagram in the Auto CAD window, which greatly improves work efficiency.