基于模糊理论的地铁深基坑非对称施工安全风险评估
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TU753.1

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国家自然科学基金(51678164、52168055);广西自然科学基金(2018GXNSFDA138009);江西省自然科学基金(20212ACB204001);广东省高等职业院校珠江学者岗位计划(2019)


Safety risk assessment of asymmetric construction of subway deep foundation pit based on fuzzy theory
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    摘要:

    地铁深基坑非对称施工比一般深基坑工程施工难度更大、风险性更高。为合理有效地对地铁深基坑非对称施工工况进行风险评估,以广州某地铁深基坑工程为依托,构建了以围护结构、既有线车站非对称土压力、基坑环境、周围环境和现场安全管理为基准的风险评价指标体系。采用模糊层次分析法和多级模糊综合评判法,建立了地铁深基坑非对称施工的评估模型。由定量计算结果得到深基坑非对称施工在评价集中对应的风险等级,与实际工程情况相吻合。根据评估结果得到各指标所占权重大小,可采取相应措施来降低对应风险。

    Abstract:

    Compared with the common deep foundation pit engineering, the asymmetric construction of subway deep foundation pit is more difficult and risky. To conduct risk evaluation of the asymmetric construction reasonably and effectively, a risk evaluation index system was established based on enclosure structure, asymmetric soil pressure of existing stations, foundation pit environment, surrounding environment and site safety management, which rely on a subway deep foundation pit project in Guangzhou. Fuzzy analytic hierarchy process and multi-level fuzzy comprehensive evaluation method were used to set up an evaluation model for asymmetric construction of subway deep foundation pit. According to the quantitative calculation results, the risk ranking of asymmetric construction risk of deep foundation pit could be obtained, which match well with the evaluation set and the practical engineering.According to the weight of each index obtained from the evaluation results, relevant measures can be taken to reduce the risk.

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吴波,赵睿,蒙国往,陈辉浩,黄惟,刘家粱,程懿.基于模糊理论的地铁深基坑非对称施工安全风险评估[J].土木与环境工程学报(中英文),2022,44(5):8-15. WU Bo, ZHAO Rui, MENG Guowang, CHEN Huihao, HUANG Wei, LIU Jialiang, CHENG Yi. Safety risk assessment of asymmetric construction of subway deep foundation pit based on fuzzy theory[J]. JOURNAL OF CIVIL AND ENVIRONMENTAL ENGINEERING,2022,44(5):8-15.10.11835/j. issn.2096-6717.2021.200

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  • 收稿日期:2021-07-05
  • 在线发布日期: 2022-06-28
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