回采巷道不同支护设计方案数值模拟分析

Numerical Simulation Analysis of Different Scheme for Supporting Design in Mining Tunnel

利用FLAC3D软件,研究孙疃矿81采区7219综采工作面巷道在采用联合支护、锚杆锚索支护和钢筋混凝土支护时巷道支护效果的不同。从三种支护结构的围岩稳定特征上看,联合支护从围岩应力分布特征、位移分布特征和围岩屈服特征都能有效地控制围岩变形和破坏,为现场煤层的安全开采提供依据。

Study on supporting effect in combined support and bolt and mesh supporting and reinforced concrete sustained and protection in 81 mining area 7219 fully-mechanized face of Sun-tuan coal mine by FLAC3D software. From rock stability characteristic on these kinds of supporting structure , combined support can effectively control deformation and failure of the surrounding rock in the distributing character of distress and displacement and deformation failure ,which provide the reference for the similar condition mining face.