摘要
煤层顶板涌(突)水一直是困扰华北型煤田开采的一个主要问题,顶板由于处于煤层上部,煤层的开采引起应力重新分布并诱发采场围岩破坏,当裂隙波及顶板含水层时,就可能导致顶板突水。以玻璃沟煤矿为例,在查明井田水文地质条件的基础上,分析煤层顶底板充水因素,采用较为成熟的“三图法”对煤层顶板涌(突)水进行评价,为井下突水防治提供理论依据。
The problem of coal seam roof water inflow(sudden water)was always a major problem in north China type coal field mining.Because the roof was located in the upper part of coal seam,coal seam mining caused stress redistribution and induced the damage of surrounding rock.When the fracture affected the roof aquifer,it might lead to sudden water of roof.Taking Boligou mine as an example,on the basis of identifying the mine hydrogeological conditions,the coal seam roof and floor water filling factors were analysed,the relatively mature"three diagram method"was adopted to evaluate coal seam roof water inflow(sudden water).The study provided theoretical basis for underground sudden water prevention and control.
作者
李东雪
赵云良
Li Dongxue;Zhao Yunliang(The Second Hydrogeologic Team,China National Administration of Coal Geology,Xingtai 054000,China)
出处
《煤炭与化工》
CAS
2021年第11期26-31,34,共7页
Coal and Chemical Industry
关键词
煤层顶板涌(突)水
三图法
充水因素
coal seam roof water inflow(sudden water)
three diagram method
water filling factor
