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针对综放面开采过程中的上覆岩层破坏导致的采空区漏风情况,采用FLAC3D数值模拟软件,通过模拟综放面开采后采空区上覆岩层的应力场及变形场的破坏情况,根据应变、应力、塑性区云图,分析了上覆岩层的应力、应变、塑性区域破坏规律,结合数值模拟结果与经验公式计算,确定了竖三带和横三区的范围,为漏风及遗煤自燃治理提供了理论依据。
Aiming at the air leakage in goaf caused by the overburden failure during the process of fully mechanized caving mining, the numerical simulation software FLAC3D was used to simulate the damage of the stress field and the deformation field of overlying strata in the mined-out area after mining, Strain, stress and plastic zone. The stress, strain and plastic zone failure rules of overlying strata are analyzed. The range of vertical three zones and horizontal zones are determined by numerical simulation and empirical formula. Governance provides a theoretical basis.