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长输天然气管线特殊地段的穿越施工
瘦脸方法
摘要:本文结合应张线山西支线管道工程施工实例，介绍长输天然气管线特殊地段的穿越施工。应张线山西支线管道工程峰峪-官堡段总体由东南向西北敷设，接自应县—又惊又喜张家口天然气输气管道3#阀室。3#一万英语阀室为本工程起点，终点为大同分输站。管道沿线所经的行政区域为山西省大同市大同县，经过地区为山前冲洪积平原及桑干河一级阶地区。管道设计压力6.3mpa，运行压力3.0～5.8mpa。管线采用φ508×7.1/8.7mml415螺旋/直缝埋弧焊钢管。
太平鼓
关键字：定向钻王宇涵>缩句大全;埋深;方案;连头;降水
abstract: this paper take yingzhang line shanxi branch pipeline engineering construction examples, introduces long distance natural gas pipeline crossing construction in special area. yingzhang line shanxi branch pipeline engineering of peak valley – the guanbu paragraph general was from southeast to northwest lying, then ziying country - zhangjiakou gas pipeline 3# valve chamber. 3# valve chamber was the project starting point, end point for datong distribution station. along the pipeline by administrative area of shanxi province datong datong county, after the region of piedmont alluvial plain and river level order area.
pipeline design pressure operating pressure of 6.3mpa, 3 ～ 5.8mpa. pipeline u 干一干φ 508 × 7.1/8.7mm l415 spiral / longitudinal submerged arc welding pipe.
