胜利矿不明采空区推测及积水危险性分析
发布时间：2019-05-27 15:48
【摘要】：采空区积水引起的透水事故占矿井透水事故的70%以上,给煤矿造成了重大的人员伤亡及财产损失。胜利矿井田范围内分布着众多小窑、老窑采空区,且部分采空区存在大量积水。由于小矿管理不善,导致相关资料缺失,使这些采空区成为不明采空区。为了保证胜利矿在开采过程中的生产安全,需要对不明采空区的位置、范围、积水情况进行研究及对其10#煤层上部采空区积水的危险性进行分析。论文依据地面调查分析所获得的小矿资料和信息,提出了依据开采量和最小可能回采率等推测开采范围的推测方法,并对各煤层的小矿可能开采范围进行了推测。结合井巷掘进和井下钻探揭露情况,对附近各煤层的开采状态进行了分析。将各类有关信息汇总,形成了不同图层,在信息汇总图上进行了综合分析,推断出2#、6#和10#煤层采空区、采空积水区和未采区大致范围。提出了上部采空区积水对下部煤层开采威胁程度的判定方法,把其危险性划分为原岩渗透型、近似原岩渗透型、涌入型和突水型四种类型,分别给出了定义和界定准则。根据此准则,分别对2#和6#煤层采空区积水对10#煤层开采的危险性进行了分析。分析结果为,2#煤层采空区积水对10#煤层的危险性为近似原岩渗透型,6#煤层采空区积水对10#煤层的危险性为突水型。研究成果将为胜利矿安全高效生产和进一步勘查提供重要的依据,对存在不明采空区的矿井具有较强的借鉴意义。
[Abstract]:The permeable accidents caused by water accumulation in goaf account for more than 70% of mine permeable accidents, which cause heavy casualties and property losses to coal mines. There are many small kilns in Shengli mine field, the goaf of old kiln, and there is a lot of water in some goaf. Due to the poor management of small mines, the lack of relevant information makes these goaf become unknown goaf. In order to ensure the production safety of Shengli Mine in the mining process, it is necessary to study the position, scope and water accumulation of unknown goaf and analyze the risk of water accumulation in the upper goaf of 100# coal seam. Based on the data and information of small mines obtained from surface investigation and analysis, this paper puts forward a method to speculate the mining range according to the mining amount and the minimum possible recovery rate, and speculates the possible mining range of each coal seam. Combined with the excavation of shaft and roadway and the exposure of underground drilling, the mining state of each coal seam nearby is analyzed. Different layers are formed by summarizing all kinds of relevant information, and the comprehensive analysis is carried out on the information summary map, and the approximate ranges of goaf, goaf and unmined areas in coal seams of 2 #, 6 # and 10 # coal seams are inferred. This paper puts forward a method to determine the threat degree of water accumulation in the upper goaf to the mining of the lower coal seam. The risk is divided into four types: original rock permeable type, approximate original rock permeable type, influx type and water inrush type, and the definition and definition criteria are given respectively. According to this criterion, the risk of water accumulation in goaf of 2 # coal seam and 6 # coal seam to 10 # coal seam mining is analyzed respectively. The analysis results show that the risk of water accumulation in goaf of 2 # coal seam to 10 # coal seam is similar to that of original rock permeability, and the risk of water accumulation in goaf of 6 # coal seam to 10 # coal seam is of water inrush type. The research results will provide an important basis for the safe and efficient production and further exploration of Shengli Mine, and will have a strong reference significance for the mines with unknown goaf.
【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】：TD745
本文编号：2486276
[Abstract]:The permeable accidents caused by water accumulation in goaf account for more than 70% of mine permeable accidents, which cause heavy casualties and property losses to coal mines. There are many small kilns in Shengli mine field, the goaf of old kiln, and there is a lot of water in some goaf. Due to the poor management of small mines, the lack of relevant information makes these goaf become unknown goaf. In order to ensure the production safety of Shengli Mine in the mining process, it is necessary to study the position, scope and water accumulation of unknown goaf and analyze the risk of water accumulation in the upper goaf of 100# coal seam. Based on the data and information of small mines obtained from surface investigation and analysis, this paper puts forward a method to speculate the mining range according to the mining amount and the minimum possible recovery rate, and speculates the possible mining range of each coal seam. Combined with the excavation of shaft and roadway and the exposure of underground drilling, the mining state of each coal seam nearby is analyzed. Different layers are formed by summarizing all kinds of relevant information, and the comprehensive analysis is carried out on the information summary map, and the approximate ranges of goaf, goaf and unmined areas in coal seams of 2 #, 6 # and 10 # coal seams are inferred. This paper puts forward a method to determine the threat degree of water accumulation in the upper goaf to the mining of the lower coal seam. The risk is divided into four types: original rock permeable type, approximate original rock permeable type, influx type and water inrush type, and the definition and definition criteria are given respectively. According to this criterion, the risk of water accumulation in goaf of 2 # coal seam and 6 # coal seam to 10 # coal seam mining is analyzed respectively. The analysis results show that the risk of water accumulation in goaf of 2 # coal seam to 10 # coal seam is similar to that of original rock permeability, and the risk of water accumulation in goaf of 6 # coal seam to 10 # coal seam is of water inrush type. The research results will provide an important basis for the safe and efficient production and further exploration of Shengli Mine, and will have a strong reference significance for the mines with unknown goaf.
【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】：TD745
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