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基于层次分析法和变差函数评价岩溶含水层产水性能

Evaluating water-yield property of karst aquifer based on the AHP and CV.

机构信息

College of Geoscience and Surveying Engineering, China University of Mining and Technology (Beijing), Beijing, 100083, China.

National Engineering Research Center of Coal Mine Water Hazard Controlling, Beijing, 100083, China.

出版信息

Sci Rep. 2022 Feb 28;12(1):3308. doi: 10.1038/s41598-022-07244-x.

DOI:10.1038/s41598-022-07244-x
PMID:35228591
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC8885745/
Abstract

In order to ensure the safety of mine production, it is of great practical significance to make a reasonable evaluation of the water-yield property (WYP) of a karst aquifer. In this paper, we selected fault-lines distribution, fault-scale index, aquifer thickness, water pressure, consumption of rinsing liquid, and hydraulic conductivity as the evaluation indexes to analyze the WYP of a karst aquifer. Meanwhile, the analytic hierarchy process (AHP) is used to calculate the subjective weight of indexes, and the coefficient of variation (CV) is used to calculate the objective weight of indexes. Combined with GIS, a multi-factor composite superposition is carried out to evaluate the WYP of a karst aquifer. The reliability of the research results is verified by the specific yield. Besides, for improving the reliability of evaluation results, the chemical composition of karst water was discussed. The results show that the selection of indexes is reasonable and the AHP-CV method is effective to evaluate the WYP of a karst aquifer. Therefore, on the premise of reasonable index selection, the evaluation models of AHP and CV can be used to evaluate the WYP of a karst aquifer and provide reference for coal mine water control measures.

摘要

为了确保矿山生产安全，对岩溶含水层的产水性进行合理评价具有重要的现实意义。本文选取断层分布、断层规模指数、含水层厚度、水压、冲洗液消耗量、水力传导率作为评价指标，分析了岩溶含水层的产水性。同时，采用层次分析法（AHP）计算指标的主观权重，变异系数（CV）计算指标的客观权重。结合 GIS，对岩溶含水层的产水性进行多因素复合叠加评价。通过具体的给水度对研究结果的可靠性进行验证。此外，为了提高评价结果的可靠性，还对岩溶水的化学成分进行了讨论。结果表明，所选指标合理，AHP-CV 方法可有效评价岩溶含水层的产水性。因此，在合理选择指标的前提下，可以采用 AHP 和 CV 评价模型对岩溶含水层的产水性进行评价，为煤矿水害防治措施提供参考。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/15f7/8885745/67b894cf688f/41598_2022_7244_Fig7_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/15f7/8885745/7beb0f3cda04/41598_2022_7244_Fig1_HTML.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/15f7/8885745/ba52c6cae4ec/41598_2022_7244_Fig6_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/15f7/8885745/67b894cf688f/41598_2022_7244_Fig7_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/15f7/8885745/7beb0f3cda04/41598_2022_7244_Fig1_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/15f7/8885745/0e12e9b2db99/41598_2022_7244_Fig2_HTML.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/15f7/8885745/010eab59968d/41598_2022_7244_Fig5_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/15f7/8885745/ba52c6cae4ec/41598_2022_7244_Fig6_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/15f7/8885745/67b894cf688f/41598_2022_7244_Fig7_HTML.jpg

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