涡阳矿区花沟西井田10煤层断裂网络复杂程度定量评价  

Quantitative Assessment of No.10 Coal Seam Faulting Network Complexity in Huagouxi Minefield,Guoyang Mining Area

作　　者：姚振兴[1] 严家平[1] 沈掌旺 殷耀琛 王兴阵[1] 

机构地区：[1]安徽理工大学,安徽淮南232001 [2]安徽省亳州市煤业有限公司

出　　处：《中国煤炭地质》2012年第6期26-29,共4页Coal Geology of China

基　　金：国家自然基金项目(编号:40972105);安徽煤田地质科技项目

摘　　要：涡阳矿区花沟西井田地处宿北断裂、光武-固镇断裂、丰涡断裂、夏邑断裂所围成的断块内,断裂构造发育。以三维地震、钻孔资料为依据,采用分形理论对10煤层断裂网络进行复杂程度评价。结果表明,井田由北向南分维值逐渐增大,北部断裂构造以简单-中等复杂为主,南部以中等-复杂为主,在东南角存在极复杂区块;根据地层倾角、断层分维值以及断裂复杂程度分区对比,北部地层倾角较小,断裂构造复杂程度简单,分维值小,南部地层倾角增大,断裂构造复杂程度增加,分维值较大,地层倾角变化趋势与断层分维值的变化趋势基本一致。The Huagouxi minefield is situated in a block enclosed by the Subei,Guangwu-Guzhen,Fengguo and Xiayi faults,faulted structures are well developed in the block.Based on 3D seismic prospecting and drilling data,using fractal theory has carried out complexity assessment of No.10 coal seam faulting network.The result has demonstrated that the fractal dimension values are increasing from north to south in the minefield,complexity of faulted structures in north part is mainly simple to medium,while in south mainly medium to complex,and in southeast corner extra complex.Based on strata dip,fault fractal dimension values and fault complexity regional contrast,strata dip in north part is rather small,faulted structure complexity is simple,and small fractal dimension values;strata dip in south part is increased,faulted structure complexity increasing,rather large fractal dimension values;thus variation trends of strata dip and fault fractal dimension values are basically identical.

关 键 词：断裂网络 复杂程度 分维值 花沟西井田 涡阳矿区 

分 类 号：P618.110.2[天文地球—矿床学]