三峡升船机塔柱横梁贝雷架支撑体系的安装与拆除属于高空立体交叉作业，而且施工场地狭窄、施工强度大，贝雷架的安装与拆除所受到的施工干扰大，是三峡升船机塔柱施工中的难题之一。本文通过对贝雷架施工作业环境的系统分析，根据不同部位的特点与要求，制定了有针对性的包括施工设备布置、吊装单元划分、吊点设置、各部位拆除方案在内的塔柱横梁贝雷架安装及拆除施工技术体系。该技术体系在三峡升船机贝雷架安装及拆除工程中得到顺利实施，塔柱横梁贝雷架支撑系统的施工进度、施工成本及施工安全均实现了良好的效果，表明该技术方案合理可靠。本文中贝雷架的安装与拆除施工技术体系可为类似条件下的贝雷架安装和拆除施工提供参考借鉴。

The installation and demolition of Bailey truss support system of Three Gorges Project ship lift belongs to be grade separation operation. Because of the narrow construction site, high construction strength, and big construction disturbance, the installation and demolition of Bailey truss has been one of the construction problems of Three Gorges Project. The installation and demolition technology system of bailey truss support system has been established based on the analysis of construction environment and the characteristics and requirements of different parts. The technology system contains the layout of construction equipment, the division of lifting units, the set of lifting point, and demolition plans of different parts and so on. This technology system ensures the smooth implementation of the installation and demolition of bailey truss. Construction schedule, cost, and safety of this project have achieved good results, and this technology system can provide a reference for similar project.