
Vol. 43 No.5 Oct2016
矿业安全与环保
MINING SAFETY & ENVIRONMENTAL PROTECTION
第43卷第5期 2016年10月
郑燕,马亚杰,刘金国,等.煤矿充水含水层Q—S曲线类型判别与对比[J].矿业安全与环保,2016,43(5):78-82 文章编号:1008-4495(2016)05-0078-05
煤矿充水含水层Q一S曲线类型判别与对比
郑燕,马亚杰"2,刘金国”,李璞”张辉”,马爱军3,王东
(1.华北理工大学矿业工程学院,河北唐山063009;2.河北省矿业开发与安全技术重点实验室,河北唐山063009:
3.开滦(集团)有限责任公司,河北唐山063001)
摘要:针对煤矿充水含水层抽水试验Q一S曲线类型判别方法、Q一S曲线类型与水文地质特征关联的规律性进行分析,以开滦林南仓矿和东欢坨矿典型充水含水层历史抽水试验数据为研究基础,对比分析了曲度法、作图法和Excel趋势线法3种常用判别方法在Q一S曲线类型判别中的适宜性,以及典型充水含水层中抽水试验Q一S曲线类型与10m降深单位涌水量。研究结果表明:曲度法适宜性较差,作图法与Excel趋势线法适宜性较好,两者的判别结果具有高度的一致性。
关键词:含水层;Q—S曲线;Excel趋势线;单位涌水量;富水性
中图分类号:TD742
文献标志码:A
网络出版时间:2016-09-290859
网络出版地址:http://www.cnki.net/kcms/detail/50.1062.TD.20160929.0859.038.html
DiscriminationandComparisonofS-QCurveTypesofCoalMine
Water-filling and Water-bearing Strata
ZHENG Yan',MA Yajie'2,LIU Jinguo',LI Ying,ZHANGHui',MA Ajun',WANGDong(I1. College of Mining Engineering, North China University of Science and Technology, Tangshan 063001, China;
2. Hebei Key Laboratory of Mining Development and Safety Technology, Tangshan 063009, China;
3.Kailuan (Group) Co., Lud., Tangshan 063001, China)
Abstract: In this paper, analysis was caried out on the discrimination methods of the QS curve types of the pumping tests in mine waterfilling and waterbearing strata and the relationship between the QS curve types and the hydrogeological characteristics of the waterflling and waterbearing strata. By taking the historic data obtained in pumping tests in the water-flling and waterbearing strata in Linnancang and Donghuantuo Coal Mines of Kailuan Group Co. , Lid. , as the research bases, comparative analysis was made on the applicability of the curvature method, mapping method and Excel trend line method in the discrimination of the QS curve types, the QS curve types of the pumping tests in the typical waterflling and waterbearing strata and the unit water inflow of 10 m drawdown, The research results showed that the applicability of the curvature method was bad and that of the mapping method and Excel trend line method was good, and the discrimination results were highly oonsistent.
Keywords: waterbearing stratum; QS curve; Excel trend line; unit water inflow; water abundance
抽水试验是确定煤矿充水含水层富水性的常规方法,抽水试验确定的单位涌水量也是判定煤矿水文地质类型的指标之一。由于水文地质类型划分采用单指标确定原则,因此抽水试验中单位涌水量的求解变得尤为重要。Q一S曲线是进行单位涌水量求解的基础,国内外研究者总结了Q一S曲线的类
收稿日期:2015-12-21;2016-04-10修订
基金项目:河北省自然科学基金项目(D2015209327)
作者简介:郑燕(1987一),女,河北衡水人,硕士研究生,主要从事水文地质方面的研究工作。E=mail:814790897@
qq.com。· 78·
万方数据
型,认为Q一S曲线的类型与特定的地下水的补给、流态、渗透性及富水性等相联系]。与此同时,所应用的Q一S曲线类型判别方法也在不断丰富(2)。这些理论成果的得出多针对层状孔隙含水层。矿井充水含水层具有孔隙含水层、基岩裂隙含水层及岩溶含水层多种类型,基岩裂隙含水层与岩溶含水层中水文地质单元呈多级多块、空间叠置、边界复杂等特征,与孔隙含水层存在差别[3-6]。研究对比Q一S曲线类型判别方法,也可为煤矿利用历史抽水试验数据,计算划分水文地质类型的单位涌水量提供方法指导。通过对比研究不同含水层Q一S曲线类型、 10m降深单位涌水量,揭示其与水文地质条件联系