纳林河二号煤矿首采区煤矿涌水量预测及其参数灵敏度分析
作者:
作者单位:

作者简介:

通讯作者:

中图分类号:

基金项目:

中煤科工集团西安研究院有限公司项目“纳林河二号煤矿首采区煤矿涌水量预测研究”(K1497)


Mining Water Yield Forecast of Initial Minery and Parameter Sensitivity Analysis in Nalinhe NO.2 Coalmine
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:

    [目的] 煤矿业开采规模与深度的不断增加导致煤矿水害事故发生,故为确保煤矿安全高效开采,必须对煤矿涌水量做充分预测研究。[方法] 依据研究区自然地理、地质条件,并且结合富水性分布规律等,充分认识煤矿水文地质条件。运用地下水流数值模拟方法,针对纳林河二号煤矿首采区31#煤层,建立起煤矿涌水量预测模型,并选取各层渗透介质的水文地质参数进行灵敏度分析,最终预测涌水量的大小。[结果] 首采区工作面采掘至第5,11 a末时潜水位最大降深值分别为32.30,47.72 m,31#煤层顶板承压水位最大降深值分别为530.37,564.63 m;煤矿涌水量分别可达57 994,86 240 m3/d。[结论] 首采区矿坑不断排水疏干,降深越来越大;模型参数对预测结果影响较大。

    Abstract:

    [Objective] The growing coal mining scale and depth easily lead to the occurrence of coalmine water disasters. Consequently, to assure coal mining in a safe and efficient way, mine water discharge is needed to be fully understood.[Methods] According to the physiographic, geological conditions of the researched area and water abundance distribution as well, this paper acquired a full knowledge of the hydrogeological condition of mines. By applying the groundwater flow numerical simulation to the 31# coal seam of the first mine area of the No. 2 coal mine of Nalinhe, this paper established a mine discharge forecast model and its sensitivity was analyzed by enumerating different hydrogeological parameters of the permeability media of all levels. Upon that, the amount of the mine discharge has been forecast.[Results] The groundwater table drop depths will be 32.30 m and 47.72 m respectively, the confined groundwater level drop depths will be 530.37 m and 564.63 m respectively, and the mine water yields will be 57 994 m3/d and 86 240 m3/d respectively at the ends of 5th and 11th year.[Conclusion] If the mine drainage in the first mining area is drained and the drop depth get more and more great, the selection of model parameters will have great influence on the prediction results.

    参考文献
    相似文献
    引证文献
引用本文

李秀娟,田国林,高小文,吕敬,郭逸.纳林河二号煤矿首采区煤矿涌水量预测及其参数灵敏度分析[J].水土保持通报,2017,37(5):309-314

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:2017-02-17
  • 最后修改日期:2017-04-01
  • 录用日期:
  • 在线发布日期: 2017-11-14
  • 出版日期: