圣华煤业1201回采巷道底鼓治理数值分析

Numerical Simulation on Floor Heave Control in No.1201 Mining Roadway in Shenghua Mine

针对圣华煤业1201回采巷道底鼓现象,利用FLAC^(3D)软件对未支护顺槽、实施原支护方案的顺槽以及新提出的加固维护方案的顺槽进行应力分布和位移破坏的数值模拟,得出原支护方案底板破坏失稳的机理及联合支护方案能起到较好控制底鼓效果的原因,并分析确定了新方案的参数。

Aiming at the floor heave in No.1201 caving roadway in Shenghua Mine, FLAC3 Dsoftware was used to simulate the stress distribution and displacement failure on different gateways without support,with the previous support, and with the new reinforced support. Then the instability mechanism of the floor failure of the original support was achieved. The results show that the combined support plan could effectively control the floor heave. The parameters of the new plan was also determined.