| 淮南煤田阜凤推覆构造带水文地质特征研究 |
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| 引用本文：桂和荣,宋晓梅,彭子成.2005.淮南煤田阜凤推覆构造带水文地质特征研究[J].地球学报,26(2):169-172. |
| DOI：10.3975/cagsb.2005.02.11 |
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| 基金项目:安徽省优秀青年科技基金项目(编号:36)资助 |
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| 中文摘要: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。 |
| 中文关键词:断层带导水性 构造岩 崩解试验 浸溶试验 开系统与闭系统 |
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| The Transmissivity of Fufeng Nappe Structural Belt in Huainan Coalfield |
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| Abstract:Cambrain limestone and sandy mudstone were pushed onto the Permian coal measures by the Fufeng thrust in Huainan coalfield. It is very important to understand the hydrogeological features of this thrust, because it threats safe mining under the Fufeng thrust block. Petrochemical composition of Fufeng thrust was determined and its water-bearing property was analyzed. The authors studied microfeatures of tectonite in Fufeng faulted zone, analyzed water stability of media in the faulted zone and found out favorable conditions for groundwater runoff by slaking test. In addition, the opening and closing properties of Fufeng faulted zone were studied by limestone etch test and carbonate balance principle. It is concluded that Fufeng nappe structural belt belongs to open system and has the essential conditions for groundwater intake and runoff. It therefore has water-transmission capacity. The transmissivity of the Fufeng fault zone increases with the expansion of the mining scale. The correctness of these conclusions have been proved. |
| keywords:transmissivity of fault zone tectonite slaking test etch test open system and closed system |
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