陕北浅煤层房柱式保水开采设计与实践  

Design and Practice of Room & Pillar Water-Preserved Mining for Shallowly Buried Coal Seam in North of Shaanxi Province

作　　者：彭小沾[1] 崔希民[1] 李春意[1] 裴婧晶[1] 康新亮[1] 梁克隆[1] 

机构地区：[1]中国矿业大学资源与安全工程学院,北京100083

出　　处：《采矿与安全工程学报》2008年第3期301-304,共4页Journal of Mining & Safety Engineering

基　　金：国家重点基础研究发展计划(973)项目(2007CB209400);教育部新世纪优秀人才支持计划项目(NCET-07-0798)

摘　　要：针对陕北干旱缺水的实际,分析了房柱式保水开采的设计原则.以六道沟煤矿为例,通过分析煤柱的稳定性、顶板垮落高度等,证明了房柱式保水开采的合理性.采后3 a现场实地调查发现,老采空区煤柱完整,没有出现片帮、剥蚀、外鼓和颈缩现象,仅局部地段存在极少量积水,地面的六道沟水库仍保持正常使用,表明合理的房柱式开采后未破坏上覆岩层含水层和地表水体.Aiming at the problem of drought and water shortage in north Shaanxi, we analyzed principles for designing room and pillar water-preserved mining method. Taking Liudaogou coal mine as an example, we analyzed the stability of coal pillar and the caving height of roof and verified the rationality of room and pillar water-preserved mining. The in-situ investigation conducted 3 years after mining shows that the coal pillars remain undamaged and no phenomena such as rib spalling, denudation, swelling, and necking has been found, with only a small amount of water accumulated in local places. In addition, the surface Liudaogou water reservoir is still in normal use. All these indicate that the aquifer in overburden and the surface water reservoir keep undamaged after coal mining with the room and pillar water-preserved technique.

关 键 词：房柱式开采 保水开采 煤柱稳定性 覆岩移动 含水层 

分 类 号：TD325[矿业工程—矿井建设]