OALib Journal期刊
ISSN: 2333-9721
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淮南煤田阜凤推覆构造带水文地质特征研究
DOI: 10.3975/cagsb.2005.02.11
Keywords: 断层带导水性,构造岩,崩解试验,浸溶试验,开系统与闭系统
Abstract:
淮南煤田阜凤逆冲断层是一压性断层,使寒武系灰岩、砂泥岩推覆于二叠系煤系地层之上。该断层的水文地质特征,对推覆体下安全采煤具有重要影响。本文测试了阜凤推覆体岩石化学成份并进行了含、导水性分析;研究了阜凤断层带构造岩的微观特征,并通过崩解试验分析了断层带介质的水稳定性及地下水径流的有利条件;最后利用灰岩浸溶试验及碳酸平衡原理进一步研究了阜凤断层带的开放性与封闭性,结论是:阜凤推覆构造带属开放系统,具有地下水补给和径流的必要条件,是导水的。其导水性随煤矿开采规模的扩大而增强,此结论已在煤矿生产实践中得到验证。
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