输电线路架空索道施工风险分析及性能评价研究
Risk Analysis and Performance Evaluation of Overhead Cableway Construction of Transmission Line

输电线路架空索道运输贯穿线路施工全过程，操作频繁、工作周期长，易产生结构件疲劳、磨损、变形等缺陷，形成安全隐患，造成人身、财产损失，是施工安全的关注重点。本文首先总结了架空索道常见的施工安全风险因素，对支架坍塌、地锚破坏、钢丝绳断裂、鞍座轴断裂、牵引机损坏、运行小车掉斗或滑索等施工事故进行了总结，并对各风险点产生的原因进行了分析。提出了输电线路架空索道的性能评价方法，包括资料审查、分析计算、现场检验和评价报告出具4部分内容，通过对架空索道的承载索、牵引索、支架、地锚等结构部件的运输状态分析，为输电线路施工架空索道提供了有效的现场监督检验方法。形成的性能评价方法适用于不同地形条件及结构型式的架空索道，为索道施工校核、评价工作提供了技术手段。
Freight ropeway transport runs through the whole construction process of transmission line. It is operated frequently with long working period. And its structural parts are easy to produce fatigue, wear, deformation and other defects. The result is to form safety risks and cause personal and property losses, which is the focus of construction safety. This paper first summarizes the common construction safety risk factors of the aerial ropeway, summarizes the construction accidents such as support collapse, ground anchor damage, steel wire rope fracture, saddle shaft fracture, tractor damage, trolley drop bucket or sliding cable, and analyzes the causes of each risk point. This paper puts forward the performance evaluation method of overhead cableway of transmission line, including data review, analysis and calculation, on-site inspection and the issuance of evaluation report. Through the analysis of the transportation state of the structural components of overhead cableway, such as bearing cable, traction cable, bracket and anchor, it provides an effective on-site supervision and inspection method for overhead cableway of transmission line construction. The safety evaluation method is suitable for different topographic conditions and structural types of freight ropeway, and provides technical means for the construction check and evaluation of ropeway.