| 中缅管道悬索跨越非对称性桥身安装实践 |
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| 引用本文： | 张杰,张安,罗子波.中缅管道悬索跨越非对称性桥身安装实践[J].油气储运,2014(3):302-305. |
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| 作者姓名： | 张杰 张安 罗子波 |
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| 作者单位： | [1]四川石油天然气建设工程有限责任公司,四川成都610215 [2]中国石油管道建设项目经理部,北京100000 |
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| 基金项目： | 基金项目：中国石油集团川庆钻探工程有限公司2011--2012年科技项目“跨越施工技术在中缅管道工程中的应用研究”,2011-56. |
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| 摘 要： | 中缅管道悬索跨越工程多建在山谷、河流上，两岸施工条件复杂，通常不具备对称安装条件。针对该问题提出非对称方法进行悬索跨越桥身安装。利用仿真计算分析非对称施工时跨越结构的受力状况，结合施工缆索等措施，优化吊装工序及预偏措施，完成桥身安装。通过中缅管道悬索跨越工程的实践，实现了从跨越一岸向另一岸进行桥身的安装，桥身安装过程中结构受力合理，成桥线形符合设计要求。通过此技术的实施，证明非对称安装技术能够满足特殊地形下桥身安装施工需要，顺利解决了对称法桥身施工对施工场地要求较高的问题，能够取得良好的经济效益与社会效益。（图5，表1，参9）
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| 关 键 词： | 中缅管道 悬索 跨越 非对称 非线性 |
Practice in asymmetrical bridge installation of suspension cable crossing on China-Myanmar Pipeline |
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| ZHANG Jie,ZHANG An,LUO Zibo.Practice in asymmetrical bridge installation of suspension cable crossing on China-Myanmar Pipeline[J].Oil & Gas Storage and Transportation,2014(3):302-305. |
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| Authors: | ZHANG Jie ZHANG An LUO Zibo |
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| Institution: | 1. Sichuan Petroleum Construction Engineering Co. Ltd., Chengdu, Sichuan, 610215; 2. PetroChina Pipeline Construction Project Management Dept, Beijing, 100000) |
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| Abstract: | Suspension cable crossing projects are mostly built across valleys and rivers, but the construction conditions of both sides of valleys and rivers are complicated, seldom meeting the requirements of symmetric installation. To solve this problem, an asymmetric method for bridge installation of suspension cable is proposed. The stress of crossing structure during asymmetric construction is analyzed by simulation. According to construction cables, the hoisting process and pre- bias measures are optimized and the installation of bridge is finished. By the construction of suspension cable crossing project for China-Myanmar Pipeline, the installation of bridge from one side to another is realized and the stress status of structure during bridge installation is reasonable, the alignment of bridge also meet the design requirements. The implementation of this technique proves that asymmetric installation technique can meet the installation and construction requirements of bridges in special terrains and successfully solve the problem that symmetric method has high requirements on construction sites, moreover, achieving good economic benefit and social benefit. （5 Figures, 1 Table, 9 References） |
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| Keywords: | China-Myanmar Pipeline suspension cable crossing asymmetric non-linear |
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