闫文朋

摘要：随着天然气的使用越來越普及，长输管道在施工建设中，难免会遇到山谷、河流等自然障碍，势必增加管道工程施工的难度和复杂性，特别是在河流比较深的地势，多采用双塔悬索跨越式工程。此种结构形式可以保证工程质量，但结构比较复杂，尤其是结构的安装施工颇具难度。基于此，结合大湘西天然气管道支干线白溪悬索跨越项目，从主塔固结、塔顶猫道锚固处理、循环牵引绳布置、主索架设、缆索吊机安装、索夹吊索安装、主梁安装、风缆锚固安装几个方面分析了管道悬索跨越工程的上部结构安装施工方法，有效减少了高空作业量，保证了施工的安全性及施工质量，以期对同类工程施工建设有一定的参考和借鉴。

关键词：悬索;上部结构;施工分析

中图分类号： U443.38文献标志码：A

文章编号：2095-5383（2020）04-0053-05

Analysis of Superstructure Construction of Pipeline Suspension Crossing Project

YAN Wenpeng

（China Railway 18th Bureau Group Construction and Installation Engineering Co.， Ltd.， Tianjin 300300，China）

Abstract：

With the increasing popularity ofnatural gas， the construction of long-distance pipeline will inevitably encounter natural obstacles such as valley and river， which will inevitably increase the difficulty and complexity of pipeline construction， especially in the deep river， the double tower suspension crossing project is often used. This kind of structure can guarantee the quality of the project， but the structure is more complicated， especially the installation and construction of the structure is quite difficult. Based on this， combined with the Baixi Pipeline Suspension Crossing Project of the Daxiangxi Natural Gas Pipeline Branch， the upper structure installation and construction methods of the pipeline suspension crossing project was analyzed from the following aspects：Main tower consolidation， catwalk anchorage treatment on the top of the tower， circulating traction rope arrangement， main cable erection， cable crane installation， cable clamp sling installation， main beam installation and wind cable anchorage installation. This method effectively reduces the amount of high-altitude operations and ensures the safety and quality of construction. It is hoped that there will be a certain reference and reference for the construction of similar projects.

Keywords：suspension; superstructure; construction analysis

近年来，长输管道工程施工项目比较多，在具体施工中经常遇到地势陡峭的峡谷、深度较大的河流，传统开挖埋设施工方法无法满足实际地形地貌的需求。此时，多采用双塔悬索跨越施工方法。双塔悬索跨越工程，跨越能力比较大，且管道受力情况比较小，非常适用于山地、河流等比较深且无法顺利穿越的工程，具有非常广泛的实用性。但此种工程上部结构非常复杂，施工难度比较大，施工工艺多变，技术含量比较高[1]。如：循环索设计安装、管道的发送、悬索的调整等都是施工的重难点，需要采用先进、适宜的施工工艺，才能保证各项施工任务高效、安全的完成。……