山西关闭矿井煤下铝研究与勘查开发建议Study on Bauxite under Coal and Exploration, Exploitation Proposals in Shanxi Closed Coalmines
申有义,刘汉斌
摘要(Abstract):
山西是中国的产煤大省,长期的煤炭开采产生大量的煤炭采空区和关闭矿井。目前山西已计划抽采关闭矿井采空区煤层气,但关闭矿井煤下铝的勘查开发目前还属于空白。本文系统分析了山西关闭矿井煤下铝勘查开发的主要地质问题,发现山西煤下铝广泛分布于山西石炭-二叠系煤层下部,资源枯竭型关闭矿井目前最适宜勘查开发煤下铝;山西关闭矿井煤下铝勘查开发过程中面临着跨采空区勘查、带压开采、底板突水、顶板扰动、深部矿体结构复杂品质变差等诸多不利条件,尤其要严防导通上部采空区积水和下部岩溶水;山西煤下铝勘查应充分利用已有煤矿采掘巷道和地质资料,按照收集资料划定靶区-物探圈定矿区和采空区-钻探查明开采地质条件-钻探加密圈定资源量的勘查步骤可大大节约钻探工程量和勘查费用。
关键词(KeyWords): 山西;关闭矿井;煤下铝;勘查
基金项目(Foundation): 国家社会科学基金项目“基于租金视角的矿业规制研究”(2016BJY051)
作者(Author): 申有义,刘汉斌
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