摘要
蛤蟆沟煤业有限公司30101工作面的设计采厚为2.5 m,为研究工作面开采后的覆岩裂隙带范围,采用UDEC数值模拟的方法确定覆岩的裂隙带高度。采用UDEC软件建立模拟模型,模型尺寸为200 m×140 m,对整个工作面推进过程中的裂隙带范围进行模拟分析,确定工作面推进20 m后期裂隙发育高度稳定,数值模拟确定裂隙带高度为33 m。采用理论计算的方法计算了开采后覆岩的裂隙带高度为41.6 m,理论计算和数值模拟的结果起到了相互验证的效果,最终确定覆岩裂隙带高度为41.6 m。
The designed mining thickness of 30101 working face of Hamogou Mining Industry Corporation Ltd. is 2.5 m,in order to study fracture zone of overlying strata after mining,fracture zone height of overlying strata was settled by UDEC numerical simulation. The model size set by UDEC is 200 m×140 m,the fracture zone of the working face was conducted by simulation analysis,the fracture development height was stable after working face advancement of 20 m,the height was30 m by numerical simulation,the height after mining was calculated as 41.6 m,both of the result by calculation and numerical simulation verified each other,and the height was settled as 41.6 m at last.
出处
《煤炭与化工》
CAS
2015年第12期1-3,共3页
Coal and Chemical Industry
关键词
裂隙带高度
数值模拟
UDEC软件
裂隙带发育过程
fracture zone height
numerical simulation
UDEC software
fracture zone development
