摘要
侏罗系风化基岩含水层是陕北侏罗纪煤田矿井涌突水水害的重要来源之一,科学预测其富水性是矿井防治水急需解决的重要问题。针对风化基岩富水性预测问题,以神府矿区红柳林井田为例,总结了风化基岩的发育特征及其富水性影响因素,选取风化基岩地层时代、厚度、风化程度和岩性组合4个因素作为评判指标,利用钻孔实测单位涌水量和各指标数据,建立了风化基岩含水层富水性类型的Fisher判别分析模型,可对无抽水试验资料钻孔的风化基岩富水性类型进行预测。研究表明,基于Fisher判别分析模型进行风化基岩富水性预测是可行的,为风化基岩富水性科学预测提供了一种新方法。
Jurassic weathered bedrock aquifer is an important gushing water disaster source in Northern Shaaxi Jurassic coalfield. Scientific prediction on its enrichment is an important issue to be resolved in mine water prevention and control. This paper aims at the problem of water enrichment prediction in weathered bedrock. Take Hongliulin Coal Mine in Shenfu mining area as an example,the paper investigates the weathered bedrock development characteristics and its influence factors of water enrichment. Then,the paper selects four factors of weathered bedrock stratum age,thickness,weathering degree,and lithological association as the evaluation indexes,and establishes the Fisher discriminant analysis model on the type of water enrichment of weathered bedrock aquifer,using the borehole measured inflow and index data. The type of water enrichment of weathered bedrock in the drill hole which has no pumping test data can be predicted using the Fisher model. The studies have shown that the prediction of weathered bedrock water enrichment based on Fisher discriminant analysis model is feasible,and it provides a new scientific prediction method for the water enrichment of weathered bedrock.
作者
侯恩科
童仁剑
王苏健
冯洁
陈通
HOU En-ke TONG Ren-jian WANG Su-jian FENG Jie CHEN Tong(School of Geology and Environ ment,Xi＇ an University of Science and Technology,Xi＇ an 710054, China Modern Coal Mining Technology Research ln- stitute , Shaanxi Coal and Chemical Technology Institute Co. ,Ltd. ,Xi ＇ an 710065 ,China)
出处
《煤炭学报》
EI
CAS
CSCD
北大核心
2016年第9期2312-2318,共7页
Journal of China Coal Society
基金
国家自然科学基金面上资助项目(41472234)
陕西省社会发展攻关资助项目(2014K13-03)
陕西省教育厅科研计划资助项目(2013JK0850)
关键词
风化基岩
含水层
富水性
红柳林井田
FISHER判别分析
weathered bedrock
aquifer
water enrichment
Hongliulin Coal Mine
Fisher discriminant analysis
