摘要
平煤五矿己15-23040工作面所在区域地质条件较复杂,受下方工作面采动影响较大,运输巷道变形严重,原有支护系统已无法保证工作面的正常生产。利用FLAC3D数值模拟软件模拟不同支护条件下巷道应力及位移的分布变化情况,优化了工作面运输巷的支护参数,对支护效果进行了现场监测。结果表明,巷道断面收缩率普遍在3%～9%,满足了通风和生产需要。
The area where the F（15）--23040 mining face of Pingmei No.5 Mine lies has more complicated geological conditions, and is greatly influenced by the lower face mining. The road- way deformation is severe, and the original supporting system is unable to guarantee the normal production of the working face. The paper uses the FLAC3D simulation software to simulate the distribution conditions of roadway stress and displacement under different support conditions, and optimize the haulage roadway support parameters, and conducts on-site monitoring on the supporting effect. The results show that the shrinkage rate of the roadway section is generally 3 to 9%, which meets the need of ventilation and production.
出处
《中国煤炭》
北大核心
2013年第6期35-38,共4页
China Coal
关键词
巷道支护
巷道变形
数值模拟
参数优化
roadway support, roadway deformation, numerical simulation, parameter opti- mization
