Risk assessment of landfill instability based on set pair-combination weighting

FENG Shi-jin; XU Yi; YANG Jun-yi; ZHENG Qi-teng; ZHANG Xiao-lei

doi:10.16285/j.rsm.2023.1259

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Risk assessment of landfill instability based on set pair-combination weighting

更新时间：2026-06-25

- Risk assessment of landfill instability based on set pair-combination weighting
- Vol. 45, Issue 7, Pages: 2129-2139(2024)
- 作者机构：
  
  1. ．同济大学土木工程学院地下建筑与工程系,上海,200092
  2. ．同济大学岩土及地下工程教育部重点实验室,上海,200092
  3. ．百色枢纽通航投资有限公司,广西,百色,533000
- 作者简介：
- 基金信息：
- DOI：10.16285/j.rsm.2023.1259
  CLC： X705;TU4
- Online First：23 July 2024，
  
  Published：2024
- 稿件说明：
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FENG Shi-jin, XU Yi, YANG Jun-yi, et al. Risk assessment of landfill instability based on set pair-combination weighting[J]. 2024, 45(7): 2129-2139.
DOI：

FENG Shi-jin, XU Yi, YANG Jun-yi, et al. Risk assessment of landfill instability based on set pair-combination weighting[J]. 2024, 45(7): 2129-2139. DOI： 10.16285/j.rsm.2023.1259.

摘要

我国填埋场具有高水位、高气压的特征，现有规范和研究中虽提出了不同的稳定性评价指标和分级标准，但对指标权重和综合风险评估缺乏系统性研究。为此，建立了涵盖填埋场几何构型、垃圾土抗剪强度、液气赋存情况和降雨4类7个指标的填埋场失稳风险评价指标体系，通过参数敏感性分析实现5级分类（稳定、较稳定、基本稳定、不稳定、极不稳定），并采用集对分析构建指标联系度函数。采用指标重要性排序法，通过参数敏感性分析、工程失稳事故、文献关注度统计和博弈论组合赋权，确定了评价指标的综合权重。最后，将指标综合权重与指标联系度函数耦合，建立了填埋场失稳风险综合评价模型，并应用于一实际填埋场工程中，与现场实际监测数据结果一致，验证了评价模型的准确性和有效性。

Abstract

Landfill sites in China are characterized by high water levels and high air pressures. Despite the proposal of various stability evaluation indicators and grading standards in existing regulations and research

there remains a lack of systematic research on indicator weights and comprehensive risk assessment. Therefore

this study establishes a landfill instability risk assessment index system encompassing seven indicators across four categories: landfill geometric configuration

shear strength of waste soil

liquid and gas occurrence

and rainfall. Through parameter sensitivity analysis

a five-level classification (stable

relatively stable

basically stable

unstable

extremely unstable) is achieved

and set pair analysis is employed to construct the indicator correlation function. The comprehensive weights of the evaluation indicators are determined through the importance ranking of indicators

combined with parameter sensitivity analysis

engineering instability accidents

literature attention statistics

and game theory-based combination weighting. Subsequently

a comprehensive evaluation model for landfill instability risk is established by coupling the comprehensive weights of indicators with the indicator correlation function. This model is then applied to an actual landfill project

and the results are consistent with the actual monitoring data on site

thereby verifying the accuracy and effectiveness of the evaluation model.

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