摘要
利用FLAC3D对复合顶板煤巷分别进行无支护和有支护条件的数值模拟。通过对无支护条件下的模拟过程及结果的分析,得出了围岩应力变化规律及巷道变形控制理论,提出了针对复合顶板煤层巷道的锚杆锚索联合支护方案,通过进一步的数值模拟分析,证明该方案具有良好的支护效果。此结果可以为复合顶板煤层巷道支护提供设计依据。
This paper separately made support and unsupported conditions of numerical simulation by using FLAC^3D on composite roof of coal lane. It made simulation process and results analysis under the unsupported condition, it obtained the change rule of surrounding rock stress and roadway deformation control theory, it proposed holt anchor cable combination supporting scheme in view of the compound roof of coal seam roadway,it made numerical simulation analysis by further,proved that the scheme has good supporting effect. This result can provide a basis for design in compound roof coal roadway support.
出处
《煤》
2014年第7期11-13,共3页
Coal
