摘要
无底柱分段崩落法作为众多金属矿山的主要开采方法,是一种具有高效、安全等特点的采矿方式。在使用无底柱分段崩落法开采的矿山中,随着开采的进行,矿区地表会形成塌陷坑,在降雨时会导致坑内积水。积水通过覆盖层渗入地下,易引起井下灾害发生,且造成井下人员伤亡及设备损坏。当前,合理的覆盖层粒度分布、组成及覆盖层厚度是覆盖层结构研究的重点,寻求合理的覆盖层结构是解决覆盖层渗水的关键,也是矿山生产得以正常进行的关键。因此,总结覆盖层结构对于覆盖层渗水影响的研究现状,提出覆盖层能够对洪峰的渗入起到一定的削峰和延时作用,合理地调整覆盖层结构可以起到较好的防水作用,可为井下形成较为完善的渗水系统,给井下排水提供较为宽裕的准备时间,避免井下灾害发生。
As the main mining method of many metal mines,the subsection caving method without bottom column is a mining method with the characteristics of high efficiency and safety.In mines that use the subsection caving method without bottom column,as mining progresses,subsidence pits will form on the surface of the mining area,and water will accumulate in the pits during rainfall.The stagnant water penetrates into the ground through the overburden,which is easy to cause the occurrence of underground disasters,and cause casualties and equipment damage in the underground.At present,reasonable overbur⁃den particle size distribution,composition and overburden thickness are the focus of overburden structure research.Finding a reasonable overburden structure is the key to solving overburden water seepage and the key to normal mine production.Therefore,the research status of the influence of the overburden structure on the seepage of the overburden is summarized,and it is proposed that the overburden can play a certain role in peak-cutting and delaying the infiltration of flood peaks,and a reasonable adjustment of the over⁃burden structure can play a better waterproof effect.It can form a relatively perfect water seepage system underground,provide more ample preparation time for underground drainage,and avoid the occurrence of underground disasters.
作者
陈陌
张治强
郭松山
张伟
邹荣利
李畅
CHEN Mo;ZHANG Zhiqiang;GUO Songshan;ZHANG Wei;ZOU Rongli;LI Chang(School of Mining Engineering,University of Science and Technology Liaoning)
出处
《现代矿业》
CAS
2022年第3期93-96,共4页
Modern Mining
基金
辽宁科技大学国家级大学生创新创业训练计划项目(编号:202110146022)。
关键词
无底柱分段崩落法
粒度分布
粒度组成
覆盖层合理厚度
渗水
subsection caving method without bottom column
particle size distribution
granular composition
reasonable thickness of cover
seepage
