通过羊场湾煤矿2#煤层西翼130202综采工作面回采过程矿压现场实测数据,并运用矿山压力理论计算和数值模拟分析相结合的方法,找出其沿空巷道侧向应力分布时空规律和内外应力场分布范围。得出了2#煤层东翼130205综采工作面5m小煤柱沿空掘巷的合理位置、巷道支护设计及上覆岩层防控技术,通过现场工程验证是可靠正确的。
Through field measurement of mine pressure during mining of 130202 fully mechanized working face, west wing of 2# coal seam in Yangchangwan Coal Mine, we applied mine pressure theoretical calculation and numerical simulation to obtain space- time law of roadway lateral stress distribution, and the inner and outer stress field distribution. The reasonable position, roadway support design and overlying strata prevention and control technology were determined for 5m small coal pillar gob-side entry driving in 130205 fully mechanized working face, east wing of 2# coal seam. The reliability and correctness was proved right through field engineering.