大采高综放工作面巷道围岩变形特征研究

为了解决回采工作面巷道支护方式与参数布置等问题，以山西某煤矿为研究对象，采用FLAC数值模拟软件和现场测试的综合性方法，研究了大采高综放工作面巷道围岩变形特征，得出了大采高综放采场围岩位移场的变化规律；结合矿井实际情况，采用矿压监测系统在工作面回风巷布置测点进行工业性试验、实时监测观测数据，掌握了巷道围岩位移的变化状态，指导巷道围岩的支护形式与参数等的确定，具有重要的理论意义。

Study on the Deformation Characteristics of Surrounding Rock in Fully Mechanized Caving Face with Large Mining Height

In order to solve the problems of roadway support mode and parameter layout,this paper takes a coal mine in Shanxi Province as the research object,uses FLAC numerical simulation software and comprehensive method of field test to study the deformation characteristics of roadway surrounding rock in the fully mechanized top coal caving face with large mining height,and obtains the change law of surrounding rock displacement field in the fully mechanized top coal caving face with large mining height.Combined with the actual situation of the mine,the mine pressure is adopted.The monitoring system arranges measuring points in the air return roadway of the working face for industrial experiments and real time monitoring and observation data,grasps the change state of the displacement of the surrounding rock of the roadway,guides the determination of the supporting form and parameters of the surrounding rock of the roadway,which has important theoretical significance.