马儿庄勘查区煤地质特征与环境影响分析

Coal Geological Characteristics and Environmental Impact Analyses for Mining in Maerzhuang Exploration Area

从马儿庄勘查区的区域地质背景入手,对勘查区含煤地层、构造、岩浆岩和含煤性等特征进行了系统的研究,并借助于该区开展的钻探、地震等工作,对勘查区煤炭环境地质问题进行了分析。研究表明:马儿庄勘查区主要含煤地层为延安组,该组地层共含煤37余层,可采10层,可采煤层平均总厚度17.34 m,可采含煤系数4.02%。勘查区煤层开采常会引起地面塌陷等地质灾害,但对生态环境、地表水及潜水的水质的影响较小。煤及煤矸石中含有一定量的硫、磷、氯、砷等金属或硫化物以及一定量的放射性元素,在煤炭开采过程中,应做好相关防范,确保施工人员的安全和对环境的影响。

Systematic researched coal-bearing stratum, structure, magmatic rock and coal-bearing features, beginning with the regional geological background. At the same time, coal environmental geological problems were analyzed through drilling and seismic work. Research show that the Yan＇an formation is the main coal-bearing strata in Maerzhuang exploration area, which have more than 37coal-bearing layer and 10 minable seam. The average total thickness of minable seam is 17.34 m and coal-bearing coefficient is 4.02%. Mining coal often causes geological hazards, such as surface collapse, which have little effect on the ecological environment and the quality of surface water and diving water. Because of a certain amount of sulfur, phosphorus, chlorine, arsenic and radioactive elements in coal and coal gangue, we should be prepared to make sure the construction personnel safety and impact on the environment.