中缅油气管道工程建设难点与创新设计

Construction diffi culties and technical innovation of the Myanmar-China Oil and Gas Pipeline

中缅油气管道是目前国内建设难度最大的管道,其线位受沿线地理和社会环境制约严重;沿线具有"三高四活跃"的不良地质特点,地震活动频繁,地震烈度高,地形起伏剧烈;国内首次天然气、原油与成品油长输管道长距离并行敷设;复杂山区管道大量采用山体隧道穿越方式,沿线河流多处采用跨越方式通过。通过解决管道建设难题,在管道并行、跨越、隧道、站场合建、地质灾害防治、管道抗震等方面实现了多项设计技术的改进和创新,提高了我国管道设计水平。

The Myanmar-China Oil and Gas Pipeline is the most challenging project in China now, its routing is severely restricted by the local geographic and social environments. Along the pipeline, there are adverse topography characteristics which is called ＂three highs and four actives＂ being its high earthquake frequency, high earthquake intensity and undulate terrain. It is also the fi rst project in China that nature gas, crude oil and refi ned oil long-distance pipelines are laid in parallel. The pipeline is often constructed crossing the mountains via tunnels and rivers via bridging. Against the problems in pipeline construction, a number of technical improvements and innovations are incorporated into the design of parallel pipeline arrangement, bridging, tunnel, station/terminal combination, geological disaster prevention, anti-seismic and etc., which triggered the pipeline design to a higher level in China.