多工作面开采地表沉陷动态预测系统研究  

Study on Surface Subsidence Dynamic Prediction System for Multi-face Mining

作　　者：冯月新[1] 胡青峰[2] 邓绪彪[2] 李垒成[2] 

机构地区：[1]大同煤矿集团有限责任公司,山西大同037003 [2]华北水利水电学院资源与环境学院,河南郑州450011

出　　处：《煤矿安全》2013年第5期72-75,共4页Safety in Coal Mines

基　　金：国家自然科学基金资助项目(41071328);国家重点基础研究发展规划(973计划)资助项目(2007CB209400)

摘　　要：将工作面沿走向划分为若干个开采单元,地表动态移动变形值等于这若干个开采单元单独动态移动变形值的叠加;以Knothe时间函数和概率积分法为基础,建立了多工作面开采地表移动变形预计模型;研究了动态预计模型中单元格的划分方法以及不同坐标系之间的转换关系;设计了多工作面开采地表移动动态预计的算法步骤;通过对比分析预测结果和实测数据,以及展示某矿多工作面开采地表沉陷的预测效果,证实了该算法的可行性和实用性。The working face is divided into some mining elements along strike, and surface movement and deformation value equals to the superposition of the separate dynamic displacement and deformation values of all these mining elements. A model of predicting dynamic mining subsidence for multi -face mining is made according to the Knothe time function and probability integral method. The cell division method and the conversion between different coordinate systems in the model are studied. An algorithm step of the dynamic prediction model for multi - face mining is designed. The feasibility and practicality of the algorithm are confirmed by comparing of the predicted and measured data and showing the prediction effect of multi - face mining surface subsidence of some mine.

关 键 词：开采沉陷 时间函数 动态预测 

分 类 号：TD325.2[矿业工程—矿井建设]