尾水钢衬安装高效施工组织及工艺研究

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

摘要

尾水钢衬是水电站中尾水流道中的重要组成部分，其安装施工的质量和效率直接关系到整个工程的进度和质量。因此，对尾水钢衬安装现场的高效施工组织及安装工艺进行研究，具有重要的现实意义。主机预埋尾水钢衬安装阶段即是机电安装的开始，也是机组中心的起点，机坑内狭窄复杂的安装环境加之尾水钢衬本身体积大质量重等因素，致使其移动不便、安装组拼过程困难繁琐。通过机组间工序协调、合理的设计优化程序减少施工程序碰撞，高效有序完成前期预埋，节省建设期间工期、劳动成本。利用自制轨道运输台车进行管节就位，弥补了桥机限位、预埋锚钩拖拉等不便的缺陷，提高了工作安全性，加快管节精准就位和组拼精度，对尾水钢衬安装起到了省时省力的作用。高效地组织及工艺优化运用，最终实现进度、质量、安全、效益等多方位提升。

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.

关键词

水电站 / 尾水钢衬 / 机组中心 / 施工组织 / 工艺优化

Key words

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

Author summay

范贵隆(1978—), 男, 高级工程师, 学士, 主要从事水电站机电安装、新能源工程建设技术管理及项目管理研究。E-mail: [e-mail]