中缅油气管道跨越双管同桥的可行性分析  

Feasibility analysis on the overhead crossing in one pipe-bridge for Sino-Myanmar Oil/Gas Pipelines

作　　者：詹胜文[1] 冯义军[1] 伍兴中 左雷斌[3] 

机构地区：[1]中国石油天然气管道局国内事业部,河北廊坊065000 [2]湖南省邵阳市第二设计研究院,湖南邵阳413403 [3]中国石油天然气管道工程有限公司,河北廊坊065000

出　　处：《油气储运》2011年第11期827-829,5,共3页Oil & Gas Storage and Transportation

摘　　要：中缅油气管道工程为油气双管并行敷设,管道通过怒江、澜沧江等V形山间峡谷时,需要采用跨越方式通过。针对中缅油气管道双管并行敷设的特点,对跨越处油气管道双管是否同桥进行了论证。介绍了国内外标准对双管同桥布置的要求,列举了国内外双管跨越实例。从结构设计和运营角度对比分析了双管同桥布置与单管分桥布置方案的安全性、经济性、环保性及风险概率,并提出了中缅管道跨越同桥的设计方案,详细介绍了管桥基础、塔架、索系、应力分析、管材、防腐,以及阀室、避雷和预警监测设计。Sino-Myanmar Oil/Gas Pipelines designed are parallelly laid.The pipelines will pass through many V-shaped valleys in Nujiang River,Lancangjiang River,etc.,and it is necessary to adopt the overhead crossing method in the pipelines'construction.Based on the parallel laying design principle,the paper discusses the feasibility in sharing the overhead crossing facilities for the two pipelines.The requirement adopted in foreign pipeline projects for overhead crossing with one pipe-bridge is introduced,and the case study is also given.From the viewpoint of design and operation,the issues are analyzed and compared in safety,economy,environment protection and risk probability for the two pipelines in the sharing and one pipeline with the pipe-bridge.Furthermore,the design scenario for the two pipelines'sharing is proposed.The design in the pipe-bridge foundation,tower,cable,stress analysis,pipe material,corrosion control,valve chamber,lightning protection and forewarning system are presented in detail.

关 键 词：油气管道 并行 跨越 同桥 可行性 

分 类 号：TE976[石油与天然气工程—石油机械设备]