ANALYSIS OF THE OVERBURDEN FAILURE AND WATER CHEMICAL CHARACTERISTICS OF FULLY MECHANIZED CAVING FACE
In the process of Shanxi formation seam mining in Liliu mining area, the seam roof and floor sandstone aquifers constitute the direct discharge aquifers. This paper analyzed the hydrogeology features comprehensively as viewed from cross-sections, plans and inner hydraulic boundaries of the basin. Several major factors of geology and mining were selected and a regression fitting analysis equation was established for overburden failure. The pumping test showed that the chemical type of coal ground water is mainly HCO3-SO4-Ca. On mining condition in the coal strata, the surfer oxidated into iron dissolvable compounds and increase the iron ion content in the mine water, then raise the content of poisonous composition, affecting the water quality. On the basis of study on the coal mine overburden failure laws and chemical characteristics of Shanxi formation 4* and 5* seam mining, The key of sewage treatment and protection on mine area is the realization of recycling of water source in mine areas.
WEIFENG YANG XIAOHONG XIA
School of Resources and Geoscience,China University of Mining and Technology, Xuzhou 221116, Jiangsu, China
国际会议
三亚
英文
429-432
2009-05-24（万方平台首次上网日期，不代表论文的发表时间）