深部煤矿巷道群数值模拟与动态监测分析

 为研究临近巷道对既有巷道的扰动影响，对淮南朱集矿巷道群进行数值模拟和巷道变形现场监测。结果表明，受回风巷和胶带机巷开挖扰动影响，轨道巷围岩应力提高、塑性区扩大、巷道变形和锚索拉力增大。现场实测数据表明，相邻巷道扰动影响具有时空效应，且轨道巷发生大变形，围岩具有流变性。研究结果可为类似条件下巷道群稳定性控制提供借鉴和指导。

Numerical simulation and dynamic monitoring analysis of roadway group in deep coal mine

In order to study disturbed effects by excavation of neighboring roadways, numerical simulation and on-site dynamic monitoring analysis of roadway group in Zhuji Coal Mine are carried out. The results show that surrounding rock mass stress, deformation, anchor cables tensile force and area of plastic zone of railway laneway increase as a result of the disturbed effects by excavation of adjacent tunnels. On-site monitoring data show that disturbed effects have spatiotemporal characteristics, railway laneway suffers large deformation, and surrounding rockmass has rheological property. Conclusions obtained will devote to the following studies.