道路配套工程施工对运营地铁桥梁的影响分析
Analysis of the Impact of Road Supporting Project Construction on the Operation of Subway Bridges
张辉 1王观璐2
作者信息
- 1. 青岛地铁集团有限公司,山东 青岛 266100
- 2. 中交公路规划设计院有限公司,北京 100088
- 折叠
摘要
地铁保护区内施工作业要求高,施工前的安全评估及施工过程的监测和监护等,可以降低施工对既有结构安全和运营安全的影响.文中采用风险源辨识、有限元分析、监测的手段对既有结构耐久性及运营安全进行了分析,并提出了施工期管控的建议措施.由于开挖卸载量较小,且地铁高架桥持力层位于微风化岩层,施工对既有结构的变形影响较小.对地铁结构安全及运营安全主要体现在道路施工期及运营期管控方面.施工采取针对性的施工管控措施和进行防撞设计,可以减轻对地铁既有结构耐久性和运营的影响.
Abstract
The construction requirements in the subway protection area are high.Through the safety assessment before construction and the mo-nitoring and monitoring of the construction process,the impact of construction on the safety of existing structures and operation safety can be re-duced.In this paper,the durability and operation safety of existing structures are analyzed by means of risk source identification,finite element analysis and monitoring,and the suggestions and measures for construction period control are put forward.Due to the small amount of excava-tion and unloading,and the bearing layer of the subway viaduct is located in the slightly weathered rock layer,the construction has little effect on the deformation of the existing structure.The safety of subway structure and operation is mainly reflected in the control of road construction period and operation period.Targeted construction control measures and anti-collision design during the construction process can reduce the impact on the durability and operation of the existing subway structure.
关键词
地铁/高架桥梁/有限元Key words
Subway/Elevated bridge/Finite element引用本文复制引用
出版年
2024
国家科技期刊平台
NSTL
万方数据