湖北省中部地区某高铁桥梁沉降监测及分析

The monitoring and analysis on a high-speed railway bridge settlement in central Hubei Province

工程设计过程中,受车站建设、地形影响、资金约束等限制,桥梁工程在高铁建设领域扮演了重要角色,保障桥梁沉降满足运行要求是决定铁路建设顺利与否的关键问题之一。为探讨某高铁桥梁的沉降情况,依据地质条件、工程设计和规范要求,对桥梁沉降展开量测设计和监测评估,确定了监测点的布设方案和分析方式;通过开展监测点的沉降数值分析,达到揭示桥梁沉降状态和沉降发展趋势,进而确定沉降稳定情况和轨道平顺性的目的。分析结果表明,该段桥梁沉降趋于稳定,满足铁路运行要求。

During the engineering design process,the bridge engineering played an important role in high-speed railway construction field because of the limitation of railway station construction,the influence of topography and the restriction of funds,ensuring the bridge settlement meet the operational requirements was one of the key issues to determine whether the railway construction is smooth or not.In order to discuss the settlement situation a high-speed railway bridge,based on the geological conditions,engineering design and code requirements,this paper made the survey design and monitoring evaluation to bridge settlement,determined the layout scheme and analysis method of the monitoring points,through the settlement numerical analysis on monitoring points,revealed the settlement state and development trend of bridge,and determined the settlement stability situation and track smoothness.The analysis results showed that the settlement tends of the bridge to be stable and meet the requirements of railway operation.