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基于风险因素和云模型的铁路盾构施工风险评估研究

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隧道施工过程通常会引起周围土体扰动和周围建筑物的结构损坏.结合铁路盾构施工项目和安全风险影响因素,来构建风险评价指标体系.利用云模型对风险评价指标模型进行权重分析和安全等级量化.结果得出一级影响指标的最大特征值分别为0.670,5.087,4.085和3.023.地质水文中变形模量在[33,60]MPa时安全等级最高.综合所有指标结果,铁路盾构施工风险评价模型对施工安全影响指标具有可行性,为施工安全管理提供了技术参考.
Research on Risk Assessment of Railway Shield Tunnel Construction Based on Risk Factors and Cloud Models
Tunnel construction usually causes disturbance of surrounding soil and structural dam-age of surrounding buildings.Combined with railway shield construction project and safety risk influen-cing factors,the risk evaluation index system is constructed.The cloud model is used to analyze the weight and quantify the safety level of the risk evaluation index model.The results show that the maxi-mum eigenvalue of the first-level impact index is 0.670,5.087,4.085 and 3.023 respectively.The safety level is the highest when the deformation modulus is[33,60]MPa in geology and hydrology.Based on all the index results,the risk assessment model of railway shield construction is feasible for the construction safety impact index,which provides technical reference for construction safety manage-ment.

shield tunneling constructionrisk factorsimpact indicatorscloud modelmember-ship degree

唐建平

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中铁十八局集团第一工程有限公司,河北保定 071000

盾构施工 风险因素 影响指标 云模型 隶属度

2024

佳木斯大学学报(自然科学版)
佳木斯大学

佳木斯大学学报(自然科学版)

影响因子:0.159
ISSN:1008-1402
年,卷(期):2024.42(10)