三聚盛煤矿邻近采空区及煤层回采工作面安全性研究

发布时间：2018-04-27 19:42

本文选题：采空区 + 煤柱　；参考：《辽宁工程技术大学》2015年硕士论文

【摘要】：三聚盛煤矿采空区分布范围较广,7号煤工作面回采过程中曾经发生过一次采空区透水事故及两次瓦斯超限断电事故,对井下安全生产造成了严重威胁。为此,对三聚盛煤矿4、9号煤采空区稳定性及7号煤工作面回采安全性进行了研究。以三聚盛煤矿4、9号煤采空区稳定性为研究背景,通过地质资料收集及物探报告分析,确定4、9号煤采空区特征及分布情况。通过理论分析、资料分析类比、现场测试等方法对4、9号煤采空区稳定性因素因素进行分析,结果表明：4号煤采空区稳定性较好,对4号煤稳定性影响最大因素是地质因素一断层,9号煤采空区稳定性相对较差,对9号煤稳定性影响最大因素是采空区规模及其之间煤柱宽度。采用理论分析与FLAC3D数值模拟软件进行数值模拟,结合三聚盛煤矿7号煤回采工作实际布置情况,分析了7号煤工作面回采与采空区稳定性之间相互影响,结果表明：7号煤工作面回采对4号煤采空区稳定性影响有一定影响,但影响不大,7号煤回采工作面对9号煤采空区稳定性具有显著的作用,在此基础上,确定了4、9号煤采空区对7号煤回采工作面安全生产影响。针对以上情况,对7号煤回采工作面危险源进行分析与划分。本文的研究成果对三聚盛煤矿7号煤回采工作面安全生产具有重要的指导作用,给该矿的安全开采提供一定的技术保障。也对类似矿井的安全开采提供一定的理论依据。
[Abstract]:The distribution of goaf in Sanjusheng coal mine is very wide. One goaf water permeation accident and two gas outage accidents have occurred in the mining process of No. 7 coal face, which has caused serious threat to the safety of underground production. Therefore, the stability of the goaf of No. 4,9 coal mining area and the safety of mining in No. 7 coal face are studied in Sanjusheng Coal Mine. Taking the stability of coal goaf No. 4 and No. 9 in Sanjusheng Coal Mine as the research background, the characteristics and distribution of the goaf of No. 4 and No. 9 coal are determined through the collection of geological data and the analysis of geophysical exploration reports. Through theoretical analysis, data analysis and analogy, field test and other methods, the factors of stability of goaf No. 4 and No. 9 are analyzed. The results show that the stability of goaf No. 4 is good. The biggest influence factor on the stability of No. 4 coal is geological factor fault, the stability of goaf No. 9 is relatively poor, and the biggest influence factor on the stability of No. 9 coal is the size of goaf and the width of coal pillar between them. By using the software of theoretical analysis and FLAC3D numerical simulation, combined with the actual arrangement of No. 7 coal mining in Sanjusheng Coal Mine, the interaction between mining and goaf stability of No. 7 coal face is analyzed. The results show that the mining of No. 7 coal face has a certain influence on the stability of the No. 4 coal goaf, but the influence is not so great. The No. 7 coal mining work has a significant effect on the stability of the No. 9 coal goaf. The influence of coal goaf No. 4 and No. 9 on the safety production of No. 7 coal mining face is determined. In view of the above situation, the dangerous source of No. 7 coal mining face is analyzed and divided. The research results of this paper play an important role in guiding the safety production of No. 7 coal mining face in Sanjusheng Coal Mine and provide certain technical guarantee for the safe mining of this mine. It also provides some theoretical basis for the safety mining of similar mines.
【学位授予单位】：辽宁工程技术大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TD325.3;TD823.9

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