陕北生态脆弱区保水采煤地质条件分区类型研究

王启庆 李文平 李涛

王启庆, 李文平, 李涛. 2014: 陕北生态脆弱区保水采煤地质条件分区类型研究. 工程地质学报, 22(3): 515-521. doi: 10.13544/j.cnki.jeg.2014.03.022
引用本文: 王启庆, 李文平, 李涛. 2014: 陕北生态脆弱区保水采煤地质条件分区类型研究. 工程地质学报, 22(3): 515-521. doi: 10.13544/j.cnki.jeg.2014.03.022
WANG Qiqing, LI Wenping, LI Tao. 2014: DIVISION TYPES OF GEOLOGICAL CONDITIONS AT MINING WITH WATER PROTECTION IN ECOLOGICAL FRAGILE AREA OF NORTHERN SHANNXI. JOURNAL OF ENGINEERING GEOLOGY, 22(3): 515-521. doi: 10.13544/j.cnki.jeg.2014.03.022
Citation: WANG Qiqing, LI Wenping, LI Tao. 2014: DIVISION TYPES OF GEOLOGICAL CONDITIONS AT MINING WITH WATER PROTECTION IN ECOLOGICAL FRAGILE AREA OF NORTHERN SHANNXI. JOURNAL OF ENGINEERING GEOLOGY, 22(3): 515-521. doi: 10.13544/j.cnki.jeg.2014.03.022

陕北生态脆弱区保水采煤地质条件分区类型研究

doi: 10.13544/j.cnki.jeg.2014.03.022
基金项目: 

国家自然科学基金项目(41172290 40572160)资助

详细信息
    作者简介:

    王启庆,男,在读硕士研究生,主要从事水文地质与工程地质的研究.Email:wangqiqing89@foxmail.com

    通讯作者:

    李文平,男,博士,教授,博士生导师,主要从事煤矿工程地质与水文地质科研与教学. Email:wpli@cumt.edu.cn

  • 中图分类号: TD741

DIVISION TYPES OF GEOLOGICAL CONDITIONS AT MINING WITH WATER PROTECTION IN ECOLOGICAL FRAGILE AREA OF NORTHERN SHANNXI

  • 摘要: 生态脆弱区如何实施水资源保护性采煤是一项重大的研究课题,开展相关水文地质工程地质条件勘探测试,进行地质条件分区的研究,是实施保水采煤的重要基础和前提。以陕北典型矿井为例,在勘探测试的基础上,进采前、采后现场压水试验及室内模拟开采覆岩变形破坏过程渗透性变化试验测试等,结果表明煤层采动对上覆岩土体渗透性有不同程度影响。基岩中粉砂岩、泥岩开采前渗透性较小,可作为弱隔水层;煤层开采后,整体移动带内基岩的渗透性出现不同程度的增大,渗透系数提高了约1个数量级,而红黏土渗透性变异不明显,表明红黏土为采后的关键隔水层。按照采动后潜水漏失量、补给量和水位变化关系,将生态脆弱区保水采煤条件划分为不失水区、轻微失水区、一般失水区和严重失水区4种类型,依据水均衡原理推导出4种类型的条件分区确定公式,并给出了应用实例。
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出版历程
  • 收稿日期:  2013-07-25
  • 修回日期:  2014-03-09
  • 刊出日期:  2014-06-25

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