皖北前岭煤矿地质构造及其对煤层破坏的影响

Study on the structures of Qianling Mine in North Anhui province and their effects to the destruction of the coal bed

对皖北前岭煤矿煤层构造进行了研究、分析。研究结果为 :小型断裂构造均为正断层 ;层滑构造主要分布在井田内次一级褶曲构造的两翼 ;层滑构造是造成煤厚变化的主要地质因素 ;煤层薄化带主要分布在赵瓦房等次一级向斜构造的两翼 。

The features of the structures are studied and analyzed in the coal layers in Qianling Mine in North Anhui province.As a result,the minor crack structures are Normal Fault and the slid structures are mainly distributed in both limbs of the lower graded fold structure in the coal bed.The main geological factor to cause the change of coal layers' thickness is the slid structure.The thin coal layers are mainly distributed in the lower graded syncline around Zhaowafang and nearby places, spreading from northeast to southeast.