Research on efficient construction organization and technology for tailwater steel liner installation

Abstract

The tailwater steel liner is a crucial component of the tailrace system in hydropower stations, and the quality and efficiency of its installation directly impact the overall progress and quality of the project. Therefore, research on efficient on-site construction organization and installation techniques for tailwater steel liners holds significant practical value. The installation of the main unit's pre-embedded tailwater steel liner marks the beginning of the electromechanical installation phase and establishes the centerline reference of the unit. However, the narrow and complex environment within the machine pit, coupled with the large size and heavy weight of the tailwater steel liner, leads to difficulties in movement and assembly. Through effective coordination of procedures between units and rational design optimization to reduce process conflicts, the preliminary embedding work can be carried out efficiently and systematically, thereby saving construction time and labor costs. The use of custom-made rail-mounted transport trolleys for pipe section positioning overcomes the limitations of bridge crane constraints and the inconvenience of dragging pre-embedded anchor hooks, enhancing operational safety and improving the precision and efficiency of pipe section positioning and assembly. These optimized construction organization strategies and technologies ultimately achieve comprehensive improvements in project schedule, quality, safety, and overall benefits.

Keywords

hydropower station / tailwater steel liner / unit center / construction organization / process optimization