不同胶结程度构造组合断裂带阻水特征

IF 1.3 4区 工程技术 Q3 ENGINEERING, GEOLOGICAL Quarterly Journal of Engineering Geology and Hydrogeology Pub Date : 2023-08-14 DOI:10.1144/qjegh2023-059
Yingzhou Chen, Shu-yun Zhu, Zhi-yong Yang
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引用次数: 0

摘要

近年来,由于底板地层高压含水层突水的威胁,深部煤矿开采面临着巨大的挑战。底板地层突水往往与下伏断裂带的构造特征有关。这些断裂带的渗透性是决定它们作为水流管道潜力的关键因素。渗透率的变化是由于断裂带内不同位置的胶结程度不同所致。因此,本研究以关键层理论为基础,引入断裂带阻水关键层的概念。本研究以杨村煤矿十采区10603工作面下煤层以上16煤层的工程背景为研究对象。研究了切入工作面的10605F5逆断裂带的活化特征。采用相似材料模拟试验和数值模拟等多种方法,分析了10605F5逆断裂带内水力分布及开采活动对阻水关键层的影响。研究结果将为防止断层活化和突水提供有价值的见解。
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Water-blocking characteristics of fault zones with different structural combination of cementation degree
Recently, deep coal mining has posed a significant challenge due to the threat of water inrush from highly pressured aquifers in the floor strata. Water inrush in the floor strata are often associated with the structural characteristics of the underlying fault zones. The permeability of these fault zones is a critical factor in determining their potential as conduits for water flow. The variation in permeability is attributed to the varying cementation degree across different locations within the fault zones. Hence, this study is based on the key stratum theory and introduces the concept of a water-blocking key stratum within fault zones. This research focuses on the engineering context of the 16th coal seam above the lower coal seam in the 10603 working face of the Yangcun Coal Mine's tenth mining area. The study investigates the activation characteristics of the 10605F5 reverse fault zone, which cuts through the working face. Various methods, including test of simulation of similar materials and numerical simulations, are employed to analyze the hydraulic pressure distribution and the impact of mining activities on the water-blocking key stratum within the 10605F5 reverse fault zone. The research findings will provide valuable insights for preventing fault activation and water inrush.
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来源期刊
CiteScore
3.40
自引率
14.30%
发文量
66
审稿时长
6 months
期刊介绍: Quarterly Journal of Engineering Geology and Hydrogeology is owned by the Geological Society of London and published by the Geological Society Publishing House. Quarterly Journal of Engineering Geology & Hydrogeology (QJEGH) is an established peer reviewed international journal featuring papers on geology as applied to civil engineering mining practice and water resources. Papers are invited from, and about, all areas of the world on engineering geology and hydrogeology topics. This includes but is not limited to: applied geophysics, engineering geomorphology, environmental geology, hydrogeology, groundwater quality, ground source heat, contaminated land, waste management, land use planning, geotechnics, rock mechanics, geomaterials and geological hazards. The journal publishes the prestigious Glossop and Ineson lectures, research papers, case studies, review articles, technical notes, photographic features, thematic sets, discussion papers, editorial opinion and book reviews.
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