基于AutoCAD的地表离散点预计程序设计与软件实现

Programming and software implementation of surface discrete point prediction based on AutoCAD

在"三下采煤"研究工作过程中经常需要对地表分布的离散点进行开采沉陷预计,以获得建(构)筑物移动和变形的具体数值,为煤矿地下开采方案设计和地表建(构)筑物损坏级别预测等提供依据。按照常规预计方法和技术手段,预计过程中基础数据的获取、组织和修改等操作过程效率较低且易出错。针对上述问题,提出了通过在AutoCAD中创建带属性的工作面和离散点参照块,并通过AutoLisp程序提取和组建工作面预计参数数据文件和离散点数据文件,然后调用概率积分法预计程序获得了离散点的预计结果。同时,开发了工作面属性扩展、离散点预计和绘制离散点移动变形曲线等相关命令,并进行了程序设计和软件实现。

In the research on mining under villages,buildings and water bodies,it is often necessary to predict mining subsidence at discrete points of surface distribution in order to obtain specific values of movement and deformation of buildings and provide basis for design of underground mining scheme and prediction of damage level of surface buildings. According to the conventional prediction methods and technical means,the acquisition,organization and modification of basic data in the prediction are inefficient and error-prone. In order to solve the above problems,it is proposed to create attribute workface and discrete point reference block in AutoCAD,extract and construct workface prediction parameter data file and discrete point data file through Auto Lisp program,and then call probability integral method prediction program to obtain discrete point prediction results. At the same time,relevant commands such as attribute extension,discrete point prediction and drawing discrete point movement and deformation curve are developed,and the program design and software implementation are carried out.