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中文摘要：
为了保证高承压含水层上10煤的安全开采,指出采用条带开采方法采煤,并采取水害综合防治措施。首先分析矿井地质、水文地质条件,认为正常开采条件下底板注浆、疏水降压可行性较差,选择条带开采方法;然后,根据相关＂规程＂,以＂下三带＂理论为指导,综合考虑隔水层真实厚度、底板破坏深度、阻水带厚度、岩体损伤等因素,计算不同开采深度下条带开采宽度和煤柱留设宽度;最后,提出进行探查底板含水层水文地质条件、留设断层煤柱、进一步完善排水系统等综合防治水措施,增强矿井综合抗水灾害能力。研究结果可指导该矿井高承压含水层上10煤的安全开采。
英文摘要：
For exploiting the tenth coalbed safely above high confined aquifers,this paper put forward to the strip-partial mining and adopted comprehensive measures to control water disasters.Firstly,based on the analysis of the geological and the hydrogeological condition,grouting method and dewatering depression were not feasible under the normal mining and strip-partial mining was put forward.Secondly,according to the rules,with the guidance of ＂down three zones＂ theory the paper calculated the mine width under and coal pillar width in different depth based on the thickness of aquifuge and safe aquifuge depth and permeable failure depth in the coalbed floor and damage of rockmass.Lastly,the coalmine should adopt comprehensive measures to control water disasters such as exploring the hydrogeological condition of the aquifers under the coalbed and remaining coal pillar for faults and improving the drainage system.The results will guide the coal mine exploit the tenth coalbed safely above high confined aquifers.
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North China Lower Coal Surrounding Rock Failure Characteristics Study Based on FLAC3D and Fiber Brag
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