Research on roof control of water conservation mining in shallow seam

被引：0
|
作者：
Huang Q.-X. [1 ]
机构：
[1] Key Laboratory of Western Mine Exploitation and Hazard Prevention, Ministry of Education, Xi'an University of Science and Technology, Xi'an
来源：
Meitan Xuebao/Journal of the China Coal Society | 2017年 / 42卷 / 01期
关键词：
Aquifer layer; Mining cracks; Shallow seam; Water resisting property; Water-preserved mining;
D O I：
10.13225/j.cnki.jccs.2016.5006
中图分类号：
学科分类号：
摘要：
The core idea of the shallow buried coal seams in Western China is to protect the ecological water level. The theoretical basis of the strata control in water conservation mining is the stability of the water resisting layer. According to simulation model tests and mining surface cracks observation, it reveals that the cracks of overburden strata induced by mining are mainly composed of “upwards cracks” and “downward cracks”. The water resisting property of overburden aquifer layer depends on the interpenetration of mining cracks band. The calculation formulas of the height of upward crack zone and the developing depth of downward crack zone are set up. Based on the thickness of the water resisting strata to the mining height, so-called resisting-mining thickness ratio, the water resisting criterion is established, and the classification method of water conservation mining is also put forward. Based on the overburden condition of Yushenfu mining area, the classification index range for the water conservation mining in shallow buried coal seam is suggested. © 2017, Editorial Office of Journal of China Coal Society. All right reserved.
引用
收藏
页码：50 / 55
页数：5
相关论文
共 19 条
  • [1] Huang Q., Ground pressure behavior and definition of shallow seams, Chinese Journal of Rock Mechanics and Engineering, 21, 8, pp. 1174-1177, (2002)
  • [2] Huang Q., Qian M., Shi P., Structural analysis of main roof stability during periodic weighting in long wall face, Journal of China Coal Society, 24, 6, pp. 581-585, (1999)
  • [3] Huang Q., Liu W., Tian Y., Observation on the law of strata behavior in shallow seam and high mining height face, Journal of Mining and Safety Engineering, 20, 3, pp. 58-59, (2003)
  • [4] Li W., Ye G., Zhang L., Et al., Study on the engineering geological conditions of protected water resources during coal mining action in Yushenfu mine area in the north Shaanxi Province, Journal of China Coal Society, 25, 5, pp. 449-454, (2000)
  • [5] Fan L., Ma X., Ji R., Progress in engineering practice of water-preserved coal mining in western eco-environment frangible area, Journal of China Coal Society, 40, 8, pp. 1711-1717, (2015)
  • [6] Fan L., Jiang Z., Xu K., Research on coal mining under compertent loose aquifer and properties of aquifuge in Yushen mining area, China Coal Geology, 15, 4, pp. 25-30, (2003)
  • [7] Qian M., Xu J., Miao X., Green technical in coal mine, Journal of China University of Mining Technology, 32, 4, pp. 343-348, (2003)
  • [8] Qian M., Miao X., Xu J., Et al., On scientized mining, Journal of Mining and Safety Engineering, 25, 1, pp. 1-10, (2008)
  • [9] Miao X., Pu H., Bai H., Principle of water-resisting key strata and its application in water-preserved mining, Journal of China University of Mining and Technology, 37, 1, pp. 1-4, (2008)
  • [10] Yang Z., Wang W., Huang J., Et al., Research on buried depth of eco-safety about groundwater table in the blown-sand region of the Northern Shaanxi Province, Journal of Northwest Sci-Tech University of Agriculture and Forestry(Natural Science Edition), 34, 8, pp. 67-74, (2006)
12