摘要
顾北煤矿北一与中央1煤采区1煤属“高水压薄阻水层”的灰岩岩溶承压水上开采,不仅受底板太原组灰岩水威胁,也受隐伏垂向通道导通奥陶系灰岩水的严重制约。为消除来自煤层底板的突水威胁,探查、治理垂直方向的导水构造,开展区域超前水平孔探查、治理工程。从底板区域超前治理工程的目的层选择、布孔原则和钻探设计等方面进行了论述,对项目工程效果进行了分析,提出了底板区域超前探查治理工程效果影响的因素,初步制定了效果评价的指标标准,对于煤矿底板超前探查治理技术的改进及工程实践有很好的指导意义。
The coal No.1 in N1 and C1 winning districts,Gubei coalmine are winning under“high water pressure with thin water-resisting layer”limestone karst confined water;not only threatened by floor Taiyuan Formation limestone water,but also seriously constrained by hidden vertical channel conducted Ordovician limestone water.To eliminate water bursting threat from coal floor has carried out exploration,governance for vertical water conducted structures and regional advanced horizontal borehole drilling exploration and governance engineering.The paper has expounded from aspects of floor region advanced governance engineering target selection,borehole layout principle and drilling design,then analyzed project engineering effect,proposed floor region advanced exploration and governance effect impacting factors,initially formulated effect assessment indicator criterion.The study has excellent guiding significance in coalmine floor advanced exploration and governance technologies improvement and engineering practices.
作者
赵璞
Zhao Pu(The First Hydrogeological Exploration Team,CNACG,Handan,Hebei 056004)
出处
《中国煤炭地质》
2020年第S01期20-22,54,共4页
Coal Geology of China
关键词
区域探查治理
效果评价
标准
regional exploration and governance
effect assessment
criterion
作者简介
赵璞(1981-),男,河北晋州人,高级工程师,主要从事水文地质、工程地质、环境地质勘查相关技术工作。
