临近地铁高架桥施工安全评估与风险控制研究

Research on Safety Assessment and Risk Control of Elevated Bridge Construction Adjacent Metro

摘要:

旨在评估与控制临近地铁高架桥施工作业中的安全性，研究的对象为临近广州地铁4号线高架桥施工过程中的安全管理，重点评估了施工过程中可能的风险，并提出相应的风险控制措施。采用了工作分解结构-风险分解结构（WBS-RBS）耦合分析法，对高架桥施工过程中的基础风险、基础设施风险、沉降风险等多种风险进行分类并分析，使用MIDAS GTS/NX软件模拟施工过程中的动态变化。通过模型模拟，预测并分析了施工过程中可能的结构变形和土体沉降情况。结果表明，通过风险评估与控制措施的实施，有效避免了高架桥施工中的安全隐患，减少了施工过程中的风险。最后，建议结合具体施工情况，进一步加强对施工期的监测，确保安全。

Abstract:

Aiming to assess and control the safety during the construction of elevated bridges adjacent subway lines, the research object is the safety management during the construction of the elevated bridge adjacent Guangzhou Metro Line 4. The focus is on the evaluation of the risks possibly in the construction process, and the corresponding risk control measures are put forward. The work breakdown structure - risk breakdown structure (WBS-RBS) coupling analysis method is used to categorize and analyze various risks, such as foundation risk, infrastructure risk and settlement risk during the construction of elevated bridges. The MIDAS GTS/NX software is used to simulate the dynamic changes during the construction. Through the model simulation, the potential structural deformations and soil settlement during construction are predicted and analyzed. The results indicate that through the implementation of risk assessments and control measures, the safety hazards during the construction of elevated bridges are effectively avoided, and the risks during construction are reduced. Finally, it is suggested that the monitoring during the construction should be further strengthened to ensure the safety in combination with the detailed construction situation.