榆神矿区曹家滩井田首采工作面涌水量预测
DOI:
作者:
作者单位:

作者简介:

通讯作者:

中图分类号:

TD 742

基金项目:


Water inflow prediction of the first mining face in Caojiatan mine field, Yushen mining area
Author:
Affiliation:

Fund Project:

  • 摘要
  • |
  • 图/表
  • |
  • 访问统计
  • |
  • 参考文献
  • |
  • 相似文献
  • |
  • 引证文献
  • |
  • 资源附件
  • |
  • 文章评论
    摘要:

    陕北侏罗纪煤田榆神矿区内煤炭资源丰富,但区内矿井普遍受到顶板水害影响。为了准确预测榆神矿区内矿井工作面涌水量,以曹家滩井田122106首采工作面为例,首先分析其导水裂隙带发育高度,判断其2-2号煤回采后上覆含水层的波及情况,而后确定工作面顶板的主要充水含水层,再采用5种方法进行涌水量预测,最后进行对比分析确定涌水量预测值。结果表明:采用裂采比27倍作为导水裂隙带发育高度计算参考,工作面2-2号煤回采高度6m,导水裂隙带发育高度为162m,波及上覆主要含水层为侏罗系延安组含水层和直罗组含水层,部分区域波及的风化基岩含水层。采用的5种方法计算工作面正常涌水量分别为:404m3/h、570m3/h、617m3/h、464m3/h、589m3/h;最大涌水量取正常涌水量的1.2倍系数进行计算。通过对比分析各方法的适用条件,确定比拟法的计算值最能够接近矿井生产实际,即曹家滩井田122106首采工作面正常涌水量为464m3/h,最大涌水量为557m3/h。

    Abstract:

    There were abundant coal resources in Yushen mining area of Jurassic coalfield in northern Shaanxi, but the coal mines in this area were generally affected by roof water hazards. In order to accurately predict the water inflow of the working face in Yushen mining area, the No. 122106 first mining face in Caojiatan mine field was taken as an example. Firstly, the development height of the water flowing fractured zone was analyzed to judge the effect of the overlying aquifers of No. 2-2coal seam after mining. After that, the main water-filled aquifers of the roof of the working face was determined, and then five methods were used to predict the water inflow. Finally, comparative analysis was carried out to determine the predicted water inflow value. The results show that, the fracture mining ratio of 27 times was used as the reference for calculating the development height of the water flowing fractured zone. Working face No. 2-2 coal mining height 6m, water flowing fractured zone development height 162m. The main overlying aquifers were Jurassic Yanan group aquifers and Zhiluo group aquifers, and some areas were affected by weathered bedrock aquifers. The five methods used to calculate the normal water inflow of the working face were: 404m3/h、570m3/h、617m3/h、464m3/h、589m3/h. And the maximum water inflow was calculated by taking 1.2 times the coefficient of normal water inflow. By comparing and analyzing the applicable conditions of each method, the calculation value of the comparison method could be most close to the actual mine production. That was, the normal water inflow of the No. 122106 first mining face in the Caojiatan mine field was 464 m3/h, and the maximum water inflow was 557 m3/h.

    参考文献
    相似文献
    引证文献
引用本文

方刚,梁向阳,黄浩. 榆神矿区曹家滩井田首采工作面涌水量预测[J]. 科学技术与工程, 2020, 20(15): 5997-6003.
Fang Gang, Liang Xiangyang, Huang Hao. Water inflow prediction of the first mining face in Caojiatan mine field, Yushen mining area[J]. Science Technology and Engineering,2020,20(15):5997-6003.

复制
分享
文章指标
  • 点击次数:
  • 下载次数:
  • HTML阅读次数:
  • 引用次数:
历史
  • 收稿日期:2019-08-25
  • 最后修改日期:2019-11-15
  • 录用日期:2019-11-17
  • 在线发布日期: 2020-06-24
  • 出版日期:
×
律回春渐,新元肇启|《科学技术与工程》编辑部恭祝新岁!
亟待确认版面费归属稿件,敬请作者关注