本文从监测对象的选择、监测项目的确定、监测点的布置以及监测结果的评价等方面详细介绍了三峡升船机横梁支撑系统的安全监测情况。监测项目包括：贝雷架支撑系统在混凝土浇筑前后以及混凝土浇筑过程中的应力、应变和位移监测；相应的塔柱混凝土墙体结构变形监测；横梁排架的立杆垂直度和位移监测。通过监测结果与原型荷载试验中获取的基础数据的比较分析表明：在施工过程中，横梁混凝土支撑体系安全可靠，应力、应变和位移等监测指标均满足设计要求，能够保证横梁混凝土的顺利浇筑。同时，本工程在安全监测方面建立的方案与技术体系可为其他同类工程的安全监测提供参考和借鉴。

Safety monitoring on crossbeam supporting system of Three Gorges Project ship lift has been introduced in detail through the selection of monitoring objects, determination of monitoring items, arrangement of monitoring points and evaluation on monitoring results. The monitoring items include stress-strain and displacement monitoring of Bailey rack supporting system, deformation monitoring of tower column, verticality and displacement monitoring of bent. By comparing the monitoring results with the data acquired from prototype load tests, it shows that the crossbeam supporting system is very safe and reliable during the construction progress. At the same time, all the monitoring indexes can meet the design requirements. Meanwhile, the safety monitoring plan and technology system can provide a reference for the safety monitoring of other similar projects.