淮北矿区二叠纪构造煤三维裂隙系统特征分析

Characteristics Analysis of Three Dimensional Fracture System of Permian Tectonically Deformed Coals in Huaibei Mining Area

基于淮北地区二叠纪构造煤广泛发育的现状,为得出构造煤三维裂隙系统特征,通过CT扫描测试分析实验并结合图像处理软件Image J,运用煤田地质学、构造地质学等学科的基本理论和方法,对淮北地区采集的9块构造煤样品提取的三维裂隙进行系统对比分析。根据三维裂隙形态特征将其分为单一裂隙的平曲型、平行简单组合的平行层面状1、平行层面状2、平行层面状3、平行中等组合的平行层面状4、交止简单组合的手掌状1、手掌状2、网状中等组合的方格型、不规则型、树型、复杂组合的星斑状、蜂窝状等6种组合样式12种形态,并分析得出不同构造煤类型的三维裂隙形态特征。

In order to obtain three -dimensional fracture system characteristics of tectonically deformed coals, based on the status quo that tectonic coal is widely developed in Huaihei Area, combined with CT scanning test analysis experiments, using image processing software ImageJ and the basic theory methods of coalfield geology, structural geology, we contrast and analyze three dimensional frac- ture system from. 9 pieces of tectonically deformed coals samples in Huaibei Region. According to the morphology of three dimensional fracture, it is divided into flat - bending type of single fracture, parallel planes shape 1, parallel planes shape 2, parallel planes shape 3 of simple parallel combination, parallel planes shape 4 of parallel medium combination, palm shape 1, palm shape 2 of check simple combination, grid type, irregular type, tree types of network medium combination, star porphyritic shape, honeycomb shape of complex combination, finally it concluded three - dimensional fracture morphology of different types of tectonic coal.