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底板承压水保水采煤技术与工程实践 预览 被引量:6

Technology and engineering practices on water preserved coal mining in seam with pressurized water floor
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摘要 为解决底板承压含水层上带压采煤问题,以董家河煤矿为例,在研究5号煤层下伏含(隔)水层特征及煤层开采底板破坏深度的基础上,分析了突水危险性,制定了承压水体上保水采煤技术体系。结果表明:奥陶纪灰岩峰峰二段含水层是本区5号煤层开采主要充水水源,突水系数大于0.06MPa/m的区域占矿区面积的43%,K2及K3含水层既可成为奥灰水突水通道,也可改造成隔水底板,对5号煤层安全开采意义重大。同时提出了"监测预报,超前探测,探治结合,综合防治"四位一体综合保水采煤技术体系,并在澄合矿区进行了工程实践,既指导本区安全生产,又保护奥陶系375 m水位。 In order to solve the pressurized coal mining problems above pressurized aquifer of seam floor,based on Dongjiake Mine as a case,with the study on the features of the aquifer( water isolated layer) underneath No. 5 seam and the floor failure depth of the mining seam,the paper analyzed the water inrush danger and set up the water preserved coal mining technology system above the pressurized water body. The results showed that Fengfeng No. 2 aquifers in Ordovician limestone were the main refilling water sources of No. 5 seam mining in the mining area and the water inrush coefficient was higher than 0.06 MPa / m regions which were taken 43% of the total area of the mining area. K2 and K3 aquifers would be the water inrush channels of Ordovician limestone water,also could be reconstructed as a water isolated floor and would have great significances to the safety mining of No. 5 seam. A four in one comprehensive water preserved coal mining technology system with " monitoring and forecasting,advance detection,exploration and control combination and comprehensive prevention and control" was provided. The engineering practices were conducted in Chenghe Mining Area. The technology system could guide the safety production of the mining area and could protect the 375 m water table in Ordovician system.
作者 马雄德 杜飞虎 齐蓬勃 李文莉 Ma Xiongde, Du Feihu, Qi Pengbo, Li Wenli( 1. School of Environmental Science and Engineering, Chang' an University,Xi' an 710054, China;2. MOE Key Lab of Underground Hydrology and Ecology Effect in Arid Region, Chang' an University,Xi' an 710054, China;3. Chenghe Mining Company Limited, Shaanxi Coal Industry Company Limited, Chengcheng 715200. China Shaanxi Institute of Geo-Environment Monitoring, Xi'an 710054, China)
出处 《煤炭科学技术》 CAS 北大核心 2016年第8期61-66,共6页 Coal Science and Technology
基金 国家重点基础研究发展计划(973计划)资助项目(2013CB227901) 陕西省科学技术推广计划资助项目(2011TG-01)
关键词 渭北煤田 保水采煤 董家河煤矿 突水系数 Weibei Coalfield water preserved coal mining Dongjiahe Mine water inrush coefficient
作者简介 马雄德(1978-),男,青海互助人,博士。E—mail:59759423@qq.com
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