摘要
由于许疃矿区地质构造复杂,对煤层开采造成不利影响。根据许疃矿区内大量断层、褶皱的构造形迹和分布规律,系统地分析了研究区内的地质构造发育特征,并从矿区所处聚煤盆地构造演化入手,结合区域地质构造背景,对矿区内不同期次构造应力场特征和构造形成机理进行了探讨。结果显示:区内总体构造形态为一走向近南北、向东倾斜的宽缓单斜构造,局部发育次级褶曲,并被一系列断层切割改造的复杂局面;矿区构造是经历了四期构造运动的结果,不同期次构造组合形成了矿井现今复杂的构造格局,燕山早期活动对总体构造轮廓的形成具有决定性意义,最终格局是在燕山期形迹基础上改造而成。
Due to the complex geological structure of Xutuan, which bring out adverse effects for Coal mining. This paper according to large number of fault the Xutuan mine fold structural features and distribution law, systematic analysis the development characteristics of the geological structure of the study area, and from the mine in which the coal basin tectonic evolution start, combined with the regional tectonic background within the mining area different tectonic stress field characteristics and structure formation mechanism was discussed. The results show the overall structural form in the region of a north-south trending, eastward tilt-relief monoclinic structure, local development sub-fold by a series of faults cutting the transformation of a complex situation ; mine constructed four tecton- ic movement experienced the results of the different phases of tectonic portfolio formed mine complex tectonic pattern of early Yanshanian activities of decisive significance for the formation of the overall structure contour. The final pattern is adapted from acting on the basis of Yanshanian.
出处
《科学技术与工程》
北大核心
2013年第27期8106-8110,8114,共6页
Science Technology and Engineering
关键词
许疃煤矿
地质构造
构造期次
形成机制
Xutuan coalmine geological structure tectonic stages formation mechanism
作者简介
第一作者简介：彭涛（1988-），男，汉族，河南固始人，安徽理工大学地质工程专业研究生。研究方向：煤矿工程地质和水文地质。E-mail：pt200610036@163．com。
