基于数值模拟的大断面沿空巷道支护方案优化

Optimization of Support Scheme for Large Section Roadway along Goaf Based on Numerical Simulation

针对1103大断面沿空巷道的围岩控制问题,充分利用现场实测及数值模拟等研究方法,分析了该巷道的围岩变形特征,并设计数值模拟方案,模拟分析了其围岩变形及控制机理,然后对原巷道支护方案进行优化设计,并进行了现场试验及后续围岩变形监测,实现了对巷道的有效控制。

In view of the surrounding rock control problem of 110 3 large section goaf roadway, the deformation characteristics of surrounding rock of the roadway are analyzed and the numerical simulation scheme is designed by making full use of the field measurement and numerical simulation research methods. The deformation of surrounding rock and its control mechanism are simulated and analyzed. Then the original roadway support scheme is optimized and the field test and subsequent monitoring of surrounding rock deformation are carried out to realize the effective control of the roadway.