基于云模型的某近间距盾构隧道施工风险评估案例研究  

Risk Assessment of a Close Spaced Shield Construction Based on Cloud Modeling

作　　者：李文杰[1] 张倬豪 余群舟[1] 周诚[1] 谢丹妮 LI Wenjie;ZHANG Zhuohao;YU Qunzhou;ZHOU Cheng;XIE Danni(School of Civil and Hydraulic Engineering,National Center of Technology Innovation for Digital Construction,Huazhong University of Science and Technology,Wuhan 430070,China;School of Civil Engineering,Shandong Jianzhu University,Jinan 250101,China)

机构地区：[1]华中科技大学土木与水利工程学院国家数字建造技术创新中心,湖北武汉430070 [2]山东建筑大学土木工程学院,山东济南250101

出　　处：《工程管理学报》2024年第5期124-130,共7页Journal of Engineering Management

基　　金：国家自然科学基金面上项目(72171092)。

摘　　要：相较于一般的盾构施工,近间距盾构施工中后行隧道施工不仅难度大、风险高,还会造成既有隧道的结构变形和位移,降低既有隧道的安全性,因此需要对近间距盾构施工进行风险识别和评估,为制定控制措施提供支持。依托某市轨道交通七号线三阳路过江超大直径隧道近间距盾构施工实例,根据其工程特点归纳出典型风险指标,并基于熵权法计算指标权重,采用云模型评估方法对各个风险进行评估。实际施工中结合评估等级采取针对性措施,保证了工程施工安全,同时也验证了此方法的有效性和可行性,可为类似工程风险评估提供参考。Compared with the conventional shield construction,the construction of the rearward tunnel in close spaced shieldconstruction poses not only heightens difficulty and risk but also causes the structural deformation and displacement of the existingtunnel and may jeopardize the safety of the existing tunnel.Therefore,it is necessary to identify and evaluate the risk of the closespaced shield construction to provide support for formulating control measures.This paper draws upon the shield construction case inthe proximity of the densely spaced segment within the exceptionally large-diameter tunnel spanning the river at San yang Road ofCity Railway Transit Line 7.The typical risk indicators are concluded based on the engineering features of this project,the weightsof these indicators are determined by utilizing the entropy weighting method,and each risk is assessed through the application of thecloud model evaluation method.In actual construction,targeted measures are taken in combination with the assessment level toensure the safety of construction.The effectiveness and feasibility of the used method are also verified.This paper can providereference for the risk assessment of similar projects.

关 键 词：三阳路大隧道 近间距盾构施工 既有隧道 风险评估 云模型 

分 类 号：U455.43[建筑科学—桥梁与隧道工程]