三峡升船机船厢室施工程序研究

Construction procedure study of ship chamber of Three Gorges Project ship lift

针对三峡升船机船厢室平衡重和船厢荷载的施加顺序对塔柱埋件结构部位变形的影响,对船厢室的施工顺序和设备安装顺序方案进行了研究,解决了船厢和平衡重荷载的施加顺序对螺母柱、齿条和纵向导向变位影响的施工技术难题。根据对塔柱结构进行的仿真计算结果,分析了船厢与平衡重荷载施加顺序分别对螺母柱、齿条、纵向导向部位横河向、顺河向和竖向变形的影响,通过对施工程序优化提出了合理的升船机船厢室的施工程序以及施工总进度计划安排。该施工程序能够使螺母柱、齿条、纵向导向、船厢结构与塔柱在各工况下的位移满足安全要求,并且基于该施工程序的施工进度满足升船机试运行要求。工程实践证明了本文所建立的三峡升船机船厢室施工程序的合理性与科学性,确保了三峡升船机船厢室的顺利施工,保障了升船机的安全运行,可为类似升船机船厢室的施工提供参考。

Aiming at the impact of load imposed order of balance weight and ship compartments on the the deformation of pillar and built-in structure parts, the construction order of ship compartments chamber and equipment installation sequence scheme are studied, which Solved the technical problems that the impact of load imposed order of balance weight and ship compartments on the the deformation of nut column, rack , and verti- cal direction displacement. According to the simulation results of pillar structure, the impact of the ship chamber and balance weight loading sequence to the nut, rack and vertical guide displacement in the direction across the river, along the river and vertical is analyzed. Reasonable ship lift ship compartments chamber construction pro-cedure and construction schedule arrangement are set by optimizing the construction procedures. The construc- tion procedures can make nut, rack, vertical direction, the structure of the ship compartments and pillar under various operating conditions on the displacement meet the safety requirements. And the procedures based on the construction progress of the construction can meet the requirements of ship lift commissioning. Engineering prac-tice proved that chamber construction procedures of Three Gorges Project lift ship established in this paper are reasonable and scientific which ensure the smooth construction of ship chamber of Three Gorges Project lift ship and guarantee the safe operation of ship lift. these construction procedures can provide a reference for similiar project.