中哈干线管道设计标准差异、影响及建议

在中哈合作建设中亚天然气管道哈国段的过程中,由于两国对于长输管道设计所遵循的标准不一致,管道设计和建设遇到多个典型问题,包括管道穿越小沟渠改变壁厚的问题,管道穿越拟建铁路公路的问题,管道穿越活动地震断裂带的问题等.产生这些问题的原因是哈萨克斯坦采用的长输管道设计规范是20多年前苏联制定的规范,已经不适应当今长距离、大口径、大规模化的天然气管道建设要求.建议从基层工程师呼吁、企业高层或政府层面推动、争取采用国际标准这三个方面入手,推进哈国天然气管道设计和建设规范的修订,以利于今后在哈国同类项目的顺利开展.

Need to resolve differences in design standards for trunk pipeline construction in the Republic of Kazakhstan

Because of inconsistencies between the design standards applied by two countries(Kazakhstan and China) during construction of the Kazakhstan portion of the Trans-Asia Gas Pipeline,many typical design and construction problems arise regarding the first section of the pipeline,e.g.changing pipe wall thickness at points where the pipeline crosses small canals and ditches,rail-roads or motorways,and active earthquake fault zones.These problems arise because the Republic of Kazakhstan’ s design specifications were developed during the Soviet era that ended 20 years ago and do not meet today’s requirements for laying a huge, modern,big-diameter,long distance gas trunk pipeline. Grass-roots engineers are strongly urged to call on corporate executives involved to promote at government level the adoption of international design standards within Kazakhstan’ s sovereign jurisdiction,or at least amendment to the current design and construction specifications to facilitate successful completion of similar projects.