依兰第三煤矿构造特征及其控煤作用研究  

Study on Structural Features and Its Coal Controlling Effect in Yilan Mining Area

作　　者：邸春生 王靖寰 

机构地区：[1]中国中煤能源集团有限公司,北京100120 [2]中国煤炭进出口公司,北京100013

出　　处：《中国煤炭地质》2016年第6期23-27,共5页Coal Geology of China

摘　　要：依兰第三煤矿处于郯庐断裂带(依兰-伊通断裂带)二级构造单元方正断陷的北部,区内构造复杂,对矿井建设与高效生产有着较大影响。依兰第三煤矿主要有NE向、NW向两组断层,以正断层为主,区内断层规模均较大,大部分断层落差大于30m。研究区构造控煤作用主要可分为两种类型,其中同沉积断裂控制了煤层发育的边界、沉积厚度等;而沉积后发育的断层使得煤层发生叠覆或者局部煤层缺失。The Yilan mining area is situated in the north part of Fangzheng fault depression, a second-order structural element of the Tancheng-Lujiang fault zone north sector （Yilan-Yitong fault zone）. Structures in the area are complex and impacted largely on mine construction and productivity. In the mining area have NE, NW two sets of faults, mainly normal faults with rather large scales; most of their throws are more than 30m. The coal controlling effect in the mining area can be divided into two types： the synsedimentary faults have controlled coal seam development confine, thickness etc.; while the post-sedimentary faults made coal seams superimposed or lo- cally hiatus.

关 键 词：控煤作用 同沉积断裂 依兰矿区 构造特征 

分 类 号：P618.11[天文地球—矿床学]