摘要
在实验室试验、计算机数值模拟计算的基础上 ,对华丰煤矿底板冲击地压的发生机理进行分析 ,并提出了相应的底板冲击地压防治措施。
Base on the measurement of physical mechanic properties for seam, face roof and floor in No. 1410 Mining Face of Huafeng Mine and the lab study on rock burst tendency, the paper analyzed the rock burst mechanism in floor of seam roadway of Huafeng Mine with a computer data analysis program FLAC to study and calculate floor deformation and horizontal structure stress of the seam roadway and support pressure relationship occurred by mining and excavation. The paper hold that the existing of key strata in the rock strata is a necessary condition to the floor strata with great deformation energy. A high stress function is a power source for the floor strata with deformation energy and rock strata to be failed. Base on the conditions to occur rock burst in the floor, the paper provide the measures to prevent the floor rock burst in the key layer of the floor strata.
出处
《煤炭科学技术》
CAS
北大核心
2001年第4期41-43,共3页
Coal Science and Technology
