构造复杂矿区煤与瓦斯突出瓦斯地质分析

doi:10.16265/j.cnki.issn1003-3033.2019.01.020

中国安全科学学报 ›› 2019, Vol. 29 ›› Issue (1): 119-124.doi: 10.16265/j.cnki.issn1003-3033.2019.01.020

构造复杂矿区煤与瓦斯突出瓦斯地质分析

高魁^1,2 副教授, 乔国栋^**1, 刘健^1,2 教授, 张树川^1,2 讲师

1 安徽理工大学能源与安全学院,安徽淮南 232001;
2 安徽理工大学煤矿安全高效开采省部共建教育部重点实验室,安徽淮南 232001

收稿日期:2018-09-14 修回日期:2018-11-25 出版日期:2019-01-28 发布日期:2020-11-23
通讯作者: **乔国栋(1994—),男,江苏徐州人,硕士研究生,主要研究方向为矿井瓦斯防治。E-mail: guodongqiao123@ 163.com。
作者简介:高魁 (1984—),男,安徽阜南人,博士,副教授,主要从事安全教学,矿井瓦斯防治和煤与瓦斯突出机制方面的研究。E-mail:kgao@aust.edu.cn。
基金资助:
国家自然科学基金资助(51604010,51674009,51474009);安徽省自然科学基金资助(1708085QE111);安徽省教育厅高校自然科学基金资助(KJ2018A0099)。

Gas-geology action analysis of coal-gas outburst in complicated geological structure coal mine

GAO Kui^1,2, QIAO Guodong¹, LIU Jian^1,2, ZHANG Shuchuan^1,2

1 College of Energy and Safety, Anhui University of Science and Technology, Huainan Anhui 232001, China;
2 Key Laboratory of Mine Safety and High Efficient Mining Jointly Built by Province and Education Ministry, Anhui University of Science and Technology, Huainan Anhui 232001, China

Received:2018-09-14 Revised:2018-11-25 Online:2019-01-28 Published:2020-11-23

摘要/Abstract

摘要： 为深入认识地质构造带煤与瓦斯突出事故的发生机制,以芦岭矿为例,运用瓦斯地质理论,论述矿区的构造特征和瓦斯地质特征,分析压扭性断层形成过程中构造运动对煤体结构和瓦斯赋存的影响。研究发现,芦岭矿位于逆冲断裂地质构造带上盘,构造松软煤层发育,压扭性断层和层滑构造对矿区影响明显;在挤压应力作用下,压扭性封闭性逆断层区域煤体裂隙发育,应力控制着瓦斯向裂隙发育区运移和聚集,使其成为高压瓦斯富集区;受采掘等作业影响,在煤层暴露的瞬间,压扭性逆断层构造带附近区域煤体内储存的大量承压状态瓦斯和构造松软煤岩混合物被疾速抛出,从而形成煤与瓦斯突出。

关键词: 煤与瓦斯突出, 瓦斯地质, 构造演化, 地质构造带, 松软煤层

Abstract: In order to deeply understand the mechanism of coal and gas outburst accidents occurred in geological structural belts, Luling coal mine was taken as an example, the structural characteristics and gas geological characteristics of the mining area were discussed on the basis of the gas geological theory. The influence of the geological tectonic movement on coal structure and gas occurrence during the formation of the compresso-shear faults was analyzed. Research shows that Luling coal mine is located in the upper plate of the thrust fault geological structure zone, and develops the soft coal seam, compression torsion fault and layer slip structure have a significant impact on the mining area, that under the action of extrusion stress, the development of fracture zone in the area of the closed reverse fault of the compression and torsion, stress controls the migration and accumulation of gas to the fractured zone, which makes it become a high pressure gas enrichment area, that under the influence of mining and other different working, a large quantity of gas and a mixture of structural soft coal and rock in a coal seam near the compression torsion reverse fault tectonic belt are thrown out quickly at the moment of coal seam exposure, resulting in the formation of coal and gas outburst.

Key words: coal-gas outburst, gas-geology, tectonic evolution, geological structural belt, soft coal layer

中图分类号:

X936
TD713

高魁, 乔国栋, 刘健, 张树川. 构造复杂矿区煤与瓦斯突出瓦斯地质分析[J]. 中国安全科学学报, 2019, 29(1): 119-124.

GAO Kui, QIAO Guodong, LIU Jian, ZHANG Shuchuan. Gas-geology action analysis of coal-gas outburst in complicated geological structure coal mine[J]. China Safety Science Journal, 2019, 29(1): 119-124.

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构造复杂矿区煤与瓦斯突出瓦斯地质分析

Gas-geology action analysis of coal-gas outburst in complicated geological structure coal mine

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