煤层层滑构造发育特征及分布规律与潘集背斜关系分析(乐琪浪FH)用于合并.docVIP

文章编号:1001-1986(2013) 潘集矿区煤层层滑构造特征及其与潘集背斜的关系 乐琪浪1，林承灏2，杨为民3，陈 萍2 （1.中国地质调查局水文地质环境地质调查中心，河北 保定 071051；2.安徽理工大学地球与环境学院，安徽 淮南 232001 ；3.中国地质科学院地质力学研究所，北京 100081） 摘要：通过对潘集矿区构造特征及矿区构造应力场分析，对潘集背斜两翼的潘北井田和潘一井田中的层滑构造进行研究，将矿区分为10个主层滑区及29个层滑亚区。研究结果显示: 矿区层滑构造的产生与南北向主应力场及大型断裂所构建的局部应力场密切相关；层滑构造导致矿区形成近东西向薄煤带，发育以Ⅱ和Ⅲ类型为主的构造煤；层滑构造多发育在背斜两翼，且以断滑型和揉皱型为主，而在背斜核部则以断裂型为主；在纵向上，层滑构造类型也具有明显的规律性，在相对浅的区域，层滑构造以断裂型为主，往下是断滑型，而在较深部位及断裂构造交汇处，则主要表现为揉皱型。 关 健 词：煤层；层滑构造；潘集背斜；发育特征；分布规律；关系 中图分类号：P618.11 文献标识码：A The relationship between the Panji anticline and the development characteristics of interlayer-gliding structure in Panji mine LE Qilang1，LIN Chenghao2，YANG Weimin3，CHEN Ping2 （1. Center for Hydrogeology and Environmental Geology, China Geological Survey, Baoding 071051, China; 2. Earth and Environment Institute, Anhui University of Science and Technology, Huainan 232001, China; 3. Institute of Geomechanics, Chinese Academy of Geological Sciences, Beijing 100081, China) Abstract: The structural characteristics of Panji anticline and tectonic stress field in Panji coal mine were studied and the Panji mining area is divided into 10 main interlayer-gliding areas and 29 sub-areas by analyzing the features and types of the interlayer-gliding structures. The results indicate that the direction of the interlayer-gliding structures is closely related to the direction of N-S principal stress field and the local stress field formed by the large-scale fault structures. The EW trending thin seam zones and the Ⅱ, Ⅲ type tectonic coal were caused by the interlayer-gliding. The interlayer-gliding structures mainly developed in the anticline wings, with fault-sliding and corrugation as dominant structures in the wings, fracture in the core of anticline. Vertically, the types of the interlayer-gliding structures have obvious regularities. In the relatively shallow area, interlayer sliding structures are mainly fractures, downward are fault-sliding type and corrugation type is mainly developed in the deep p