【摘要】 利用开采沉陷预计软件预测地表沉陷及变形,是"三下采煤"、土地复垦等工作的重要内容之一。获取工作面基本数据和构建参数库是进行开采沉陷预计的前提和基础。文中基于CAD二次开发语言Autolisp及VBA,利用CAD图元扩展属性功能,实现了工作面角点坐标及预计参数自动提取和数据库自动构建。更多还原

【Abstract】 Prediction of the surface subsidence and deformation by the mining subsidence prediction software was one of the important contents of "Mining Under Three" and the land reclamation. Obtaining the basic data of the working face and the constructing parameter database were the premise and the foundation of mining subsidence prediction. Based on the CAD secondary development language Autolisp and VBA, the automatic extraction of corner coordinates and predicted parameters of working face and the automatic construction of database were realized by using the extended attribute function of CAD graph element.更多还原