Risk Assessment of Soil and Water Loss and Secondary Disasters During Pumped Storage Power Station Construction

Ma Xiaoxiao; Zhu Anping; Yu Weiqing; Liu Xin; Li Xuan

doi:10.13961/j.cnki.stbctb.2022.02.022

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Risk Assessment of Soil and Water Loss and Secondary Disasters During Pumped Storage Power Station Construction

- Risk Assessment of Soil and Water Loss and Secondary Disasters During Pumped Storage Power Station Construction
- Bulletin of Soiland Water Conservation Vol. 42, Issue 2, Pages: 157-165(2022)
- 作者机构：
  
  1. 国网新源控股有限公司,北京,100052
  2. 紫光软件系统有限公司,北京,100084
- 作者简介：
- 基金信息：
- DOI：10.13961/j.cnki.stbctb.2022.02.022
  CLC： S157.1;TV743
- Published：2022
- 稿件说明：
移动端阅览
Ma Xiaoxiao, Zhu Anping, Yu Weiqing, et al. Risk Assessment of Soil and Water Loss and Secondary Disasters During Pumped Storage Power Station Construction[J]. Bulletin of Soiland Water Conservation, 2022, 42(2): 157-165.
DOI：

Ma Xiaoxiao, Zhu Anping, Yu Weiqing, et al. Risk Assessment of Soil and Water Loss and Secondary Disasters During Pumped Storage Power Station Construction[J]. Bulletin of Soiland Water Conservation, 2022, 42(2): 157-165. DOI： 10.13961/j.cnki.stbctb.2022.02.022.

摘要

[目的] 对抽水蓄能电站建设期水土流失及其次生灾害风险进行评价，对涉及的要素特征进行筛选分析，为提高工程建设期绿色安全施工水平提供科学支持。[方法] 采用层次分析法结合模糊综合评价法，从3个维度共选取了8个一级指标和34个二级指标进行分析评价。[结果] 构建了抽水蓄能电站建设期水土流失及其次生灾害风险评价模型，并划分为5个风险等级，将模型应用于安徽省绩溪抽水蓄能电站的研究表明该电站在建设期水土流失风险灾害等级为3级，属一般安全等级。结合该工程建设期的实情，验证了模型的可行性。[结论] 抽水蓄能电站选址在很大程度上决定着工程建设期水土流失及其次生灾害风险等级。采用该方法评价风险等级为3级及以下的工程，可在确保工程水土保持措施按照要求落实建设的基础上，增强建设期水土保持监测水平。应重点关注建设期弃渣堆置不合规及取弃土过程中的潜在土壤流失量，防微杜渐，避免水土流失及其次生灾害现象的发生。

Abstract

[Objective] The risk of soil and water loss and such secondary disasters that may exist in the construction of pumped storage power stations was evaluated to screen and analyze the characteristics of the elements involved in order to provide scientific support for improving green and safe construction during the project construction period. [Methods] The analytic hierarchy process method was used combined with the fuzzy comprehensive evaluation method to select eight primary indicators and thirty-four secondary indicators from three dimensions for analysis and assessment. [Results] A risk assessment model of soil and water loss and its secondary disasters during the construction period for a pumped storage power station was constructed

and the risk was divided into five levels. The model was applied to the Jixi pumped storage power station in Anhui Province. The risk level of soil and water loss and its secondary disasters during the construction period for this pumped storage power station was level three

which belongs to the general safety level. The feasibility of the model was verified by comparing results with actual measurements during the construction period. [Conclusion] Site selection for pumped storage power stations could largely determine the risk level of soil and water loss and secondary disasters during the project construction period. Projects with risk level of grade three as evaluated by using method in this study could benefit from improved supervision frequency on the basis of learning from relevant soil and water conservation supervision and risk prevention and control measures. Such actions could avoid soil and water loss occurring from slope sliding and slag sliding as far as possible

and allow for the taking of preventive measures to completely eliminate the occurrence of soil and water loss and related secondary disasters.

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