煤炭工程 ›› 2013, Vol. 45 ›› Issue (10): 46-48.doi: 10.11799/ce201310016

• 施工技术 • 上一篇    下一篇

临时煤仓施工防突水研究

刘基1,王皓2,丁湘1   

  1. 1. 中煤科工集团西安研究院
    2. 煤炭科学研究总院西安研究院
  • 收稿日期:2013-05-02 修回日期:2013-07-01 出版日期:2013-10-10 发布日期:2013-10-24
  • 通讯作者: 刘基 E-mail:g73018606@126.com

Study on the preventing the water-inrush of construction of the temporary coal bunke

  • Received:2013-05-02 Revised:2013-07-01 Online:2013-10-10 Published:2013-10-24

摘要:

为了确定鄂尔多斯某矿临时煤仓顶板安全隔水层厚度及其顶板含水层的可疏性问题,采用现场施工取芯探查钻孔和岩石物理力学性质测试以及开展放水试验工作,结果表明煤仓及其巷道顶板安全隔水层厚度和松动圈的厚度为11.62m,顶板含水层的可疏性不佳。最终采用临时煤仓高度降低至安全隔水层厚度的方法,确保了临时煤仓及其附属巷道的安全施工。

关键词: 临时煤仓, 取芯探查, 放水试验, 安全隔水层厚度, 可疏性

Abstract:

To determine the thickness of the safe aquiclude at the top roof of the temporary coal bunke and the possibility of drainage of its top aquifer in a mine in Erdos, core drilling in the spot, testing the physical and mechanical properties of the rock and the water releasing test are used. The result is that the thickness of the top roof of the temporary coal bunke and its roadway and the thickness of the broken-rock circle calculated is 11.62m. The possibility of drainage of its top aquifer is no good. At last, cutting down the height of the temporary coal bunke to the thickness of the safe aquiclude is used to ensure the safe construction of the temporary coal bunke and its roadways.

Key words: the temporary coal bunke, core drilling, water releasing test, the thickness of the safe aquiclude, possibility of drainage