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J. Hefei Univ. Tech. (Nat. Sci.)

合肥工业大学学报(自然科学版)

JOURNAL OF HEFEI UNIVERSITY OF TECHNOLOGY (NATURAL SCIENCE)

Competent Authorities: Ministry of Education of the People's Republic of China

Sponsor by: Hefei University of Technology

ISSN 1000-1646, CN 34-1001/N

Water abundance assessment on unconsolidated confined aquifer based on the coupling of improved AHP and CRITIC

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基于改进 AHP 法和 CRITIC 法耦合赋权的松散承压含水层富水性评价

Journal Information

J. Hefei Univ. Tech. (Nat. Sci.), Apr.2023, Vol.46 No.4: 519-528

DOI: 10.3969/j.issn.1003-5060.2023.04.014

Authors

GE Rutao, CHEN Luwang, WANG Yingxin, ZHANG Jie, LI Ruirui

(School of Resources and Environmental Engineering, Hefei University of Technology, Hefei 230009, China)

Abstract and Keywords

Abstract: In this paper, according to the analysis of the data of 60 effective pumping test boreholes collected from the Quaternary unconsolidated confined aquifer of Huaibei Coalfield, which is a typical North China type coalfield, the multi-factor complex model of water abundance assessment on unconsolidated confined aquifer was established. In the model, six factors were selected as the assessing indexes, which included water resistance coefficient (R), head coefficient (G), aquifer thickness (S), thickness of the thickest sand layer (M), gradation coefficient (D) and interbedded sand and mud coefficient (P). The weight values of six factors were assigned based on the coupling of improved Analytic Hierarchy Process (AHP) and CRiteria Importance Through Intercriteria Correlation (CRITIC) to avoid the subjective or objective characteristic when weights were separately determined by AHP or CRITIC. The coupling weighting model was verified by eleven pumping test boreholes data, and the accuracy of the assessment results of the model was as high as 90.91%. Moreover, these selected factors could be obtained from the data of ordinary geological exploration boreholes, so there was no need to carry out too many field pumping tests and geophysical explorations. The model was applied to a specific engineering case affected by mining to assess the temporal and spatial dynamic change of water abundance of unconsolidated confined aquifer, and the results were relatively accurate.

Keywords: Analytic Hierarchy Process(AHP); CRiteria Importance Through Intercriteria Correlation (CRITIC); unconsolidated confined aquifer; water abundance; assessment model

作者信息

葛如涛，陈陆望，王迎新，张杰，李蕊瑞

（合肥工业大学资源与环境工程学院，安徽合肥230009）

摘要和关键词

摘要: 文章通过分析华北型煤田——淮北煤田60个第四系松散承压含水层有效抽水试验钻孔数据, 选择隔水系数R、水头系数G、含水层厚度S、最厚砂层厚度M、级配系数D、砂泥互层系数P共6个影响因素作为评价指标, 基于博弈论将层次分析(Analytic Hierarchy Process, AHP)法和基于指标相关性的指标权重确定(CRiteria Importance Through Intercriteria Correlation, CRITIC)法进行耦合, 建立多因素复合的松散承压含水层富水性评价模型, 避免AHP法与CRITIC法单独赋权时偏主观或偏客观问题; 采用11个抽水试验钻孔数据对该耦合赋权模型进行验证, 该模型评价结果的正确率高达90.91%, 所选评价指标均可通过普通地质勘探孔数据得到, 无需过多开展现场抽水试验与物探工作; 将该模型应用于受采动影响的具体工程实例, 评价松散承压含水层富水性的时空动态变化, 结果较为精准。

关键词: 层次分析（AHP）；基于指标相关性的指标权重确定（CRITIC）；松散承压含水层；富水性；评价模型中图分类号：P641.136 文献标志码：A 文章编号：1003-5060（2023）04-0519-10

Funding

国家自然科学基金资助项目（41972256）

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