厚松散层薄基岩上提工作面压架原因数值模拟研究

Numerical Simulation Study on the Pressure Support Reasons of Lifting Face on Thick Loose Bed and Thin Bedrock

以顾北矿1202(3)上提工作面为工程背景,采用FLAC3D、UDEC软件进行数值计算,模拟研究采高、面长、煤层倾角、基岩厚度、支架工作阻力变化对工作面覆岩运移及矿压特征影响,为厚松散层薄基岩上提工作面安全高效开采提供一些依据。

The upper-limit face of 1202(3)in Gubei coal mine is taken as the engineering background;FLAC3D and UDEC software were used for numerical calculation to simulate and study the influence of mining height,face length,coal seam inclination,bedrock thickness and support working resistance changes on overburden migration and ore pressure characteristics of the working face,so as to provide some basis for safe and efficient mining of the lifting face on the thick loose bed and thin bedrock.