丁彦雄,赵凯兴,张晨阳,冯栋,白喜成,侯鹏飞,徐裴,侯恩科

• 1:陕西小保当矿业有限公司
• 2:西安科技大学地质与环境学院

摘要(Abstract)：

榆神矿区地处毛乌素沙漠地带，生态环境脆弱，水资源短缺。煤炭开采时对水资源的保护备受关注。以榆神矿区小保当二号井田为研究区，采用物理相似材料模拟实验，确定了小保当二号井2~(-2)煤层开采导水裂隙带发育高度，在此基础上，通过对比煤层至风化基岩含水层之间的距离与导水裂隙带发育高度的差值，并结合保水采煤试验与采动损害监测结果，引入保护层厚度指标，预测2~(-2)煤层开采对风化基岩含水层的影响程度。研究结果表明：小保当二号井2~(-2)煤层开采后导水裂隙带发育带发育高度约为150m,裂采比约25倍。将2~(-2)煤层开采对风化基岩含水层的影响程度划分为无影响、轻微影响、一般影响、严重影响4种类型，研究区为无影响区和轻微影响区，其中，轻微影响区占全井田范围的0.03%。

关键词(KeyWords)： 小保当二号井田;煤炭开采;导水裂隙带;风化基岩含水层;预测

Abstract:

Keywords:

基金项目(Foundation): 榆北煤业科研项目(2021YBKJ-04);; 陕煤联合基金项目(2021JLM-09);; 陕西省科技厅中央引导地方科技发展专项资金计划项目(2020ZY-JC-03)

作者(Author): 丁彦雄,赵凯兴,张晨阳,冯栋,白喜成,侯鹏飞,徐裴,侯恩科

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