煤层开采后覆岩导水裂隙带高度的模拟研究

Simulation Study on the Height of Water Flowing Fractured Zone After Coal Seam Mining

某矿为安全开采煤炭资源,采用经验公式预计和计算机数值模拟方法,按规划设计开采煤层厚度分别研究了单独开采16#煤、17#煤后覆岩导水裂隙带高度,采用经验公式计算为36.1m和29.7 m;采用计算机模拟方法计算为37.1 m、26.9m。研究了按规划设计开采煤层厚度将16#煤、17#煤全采后覆岩导水裂隙带高度为41.7 m。

QIU Sheng- hua ,YANG Zhi- xi, LIU Guang- zhao, CAO Fu- hui, LIU Meng ,ZHU Yan- jiang （1. School of Urban Construction and Safety Engineering ,Shanghai Institute of Technology,Shanghai 201418, China; 2. Zhaizhen Coal Mine, Xinwen Mining Group Company, Xintai 271204, China;3. Shandong Fengyuan Yuanhang Coal Company, Tengzhou 277518, China） QIU Sheng- hua ,YANG Zhi- xi, LIU Guang- zhao, CAO Fu- hui, LIU Meng ,ZHU Yan- jiang （1. School of Urban Construction and Safety Engineering ,Shanghai Institute of Technology,Shanghai 201418, Chi For the safe mining of coal resource, depending on the designing mining height, a mine applied the two methods of empirical formula and numerical simulation to study the height of water flowing fractured zone of 16＂ and 17＂ coal seams which are exploited a- lone. The result shows that these two values are 36.1 m and 29.7 m according to the empirical formula, and 37.1 m and 26.9 m according to computer simulation. Depending on the designing mining height, the height of water flowing fractured zone of 16^# and 17^# coal seams after mining is 41.7 m according to computer simulation.