许厂煤矿断裂构造规律研究

Study on fault structure of Xuchang Coal Mine

根据许厂矿物探、钻探和生产过程中的资料,采用地质统计法对断裂构造要素进行统计分析,建立了断层落差与延展长度之间的经验公式。研究表明:许厂矿断裂构造较为发育且以正断层为主,断层走向主要以NE、近SN和NW为主。定量分析认为断层落差与延展长度呈正相关关系,断裂密度等值线表明区域东部和西部断层密度变化较大,南部和北部变化较小;断裂强度等值线表明断裂强度整体呈现从南向北逐渐减小的趋势。

According to the data of geophysical exploration,drilling and production of Xuchang Coal Mine,the statistical formula of fault structural elements is analyzed by geological statistic method,and the empirical formula between fault throw and extension length is established.The study shows that the fault structure of Xuchang Coal Mine develops well and are mainly normal faults,the fault strike are mainly NE,near SN and NW.Quantitative analysis shows that the fault throw is positively correlated with the length of the extension.The fracture density contours show that the fault density in the eastern and western regions of the region changes greatly and the southern and northern changes are small.The fracture strength contours indicate that the fracture strength is gradually decreasing from south to north.