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金属矿山 ›› 2012, Vol. 41 ›› Issue (10): 55-57.

• 采矿工程 • 上一篇    下一篇

漳村煤矿1312工作面顶板突水原因分析

戎虎仁1,2,白海波1,2,王占盛1,2,张勃阳1,2   

  1. 1.中国矿业大学力学与建筑工程学院;2.深部岩土力学与地下工程国家重点实验室
  • 出版日期:2012-10-15 发布日期:2012-11-08
  • 基金资助:

    * 国家重点基础研究发展计划(973计划)项目(编号:2007CB209400,2006CB202210),国家自然科学基金重点项目(编号:50634050),国家自然科学基金项目(编号:50674087,50874103,50974115),高等学校学科创新引智计划项目(编号:B07028)。

Analysis on Water Inrush Cause in Coal Mining Roof of 1312 Face in Zhangcun Mine

Rong Huren1,2,Bai Haibo1,2,Wang Zhansheng1,2,Zhang Boyang1,2   

  1. 1.School of Mechanics & Civil Engineering,China University of Mining and Technology;2.State Key Laboratory for Geomechanics and Deep Underground Engineering
  • Online:2012-10-15 Published:2012-11-08

摘要: 漳村煤矿1312工作面在回采过程中发生间断性涌水,但依据经验公式计算顶板断裂带高度并未发育到含水层。通过分析顶板水文地质条件,运用RFPA数值模拟与现场实际探测研究顶板导水裂隙带发育规律。结果表明: ①经验公式计算得到的顶板导水断裂带最大高度为45~58 m,与RFPA数值模拟得到的95 m相差较大,顶板亚关键层薄以及距3煤顶板距离小于58 m是使得裂隙带发育偏高的主要原因;②现场探测测得顶板裂隙带发育高度约为96 m,与RFPA模拟相符合;③关键层与含水层空间位置及岩层分布规律决定了工作面回采顶板会发生间断性涌水以及滞后涌水。

关键词: 导水断裂带, 关键层, 滞后涌水, RFPA

Abstract: Although the 1312 face in Zhangcun Mine took place intermittent water flush during mining, the height of water fractured zone don't develop to aquifer by empirical formulae. By analyzing hydrogeology conditions from the direct roof of 1312 face in Zhangcun Mine and using RFPA and actual detection to study the law of fractured full-mechanized Caving mining. Results shows that: ①According to the empirical formulae, the max height of water fractured zone is 45~58 m, which is greatly different from the RFPA result (95 m), and the major cause of the higher height of coal-series strata is the thin inferior key strata in direct roof as well as distance to 3 seam less than 58 m; ②The height of water fractured zone is about 96 m by actual detection , which is agreement with RFPA result; ③The spatial position of key-stratum and aquifer determine discontinuous water inrush and lag water inrush will happen in working face.

Key words: Water fractured zone, Key stratum, Lag water inrush, RFPA