中缅管道途经典型地质灾害影响区域的设计与建设

中缅油气管道是第一条敷设于滇西横断山脉地区的大口径、高压力长输油气管道，首次遭遇滇西复杂地形、复杂地质条件下的地灾群。介绍了该管道在地质灾害多发地段通过选用大变形钢管来提高管道本体抗应变破坏能力的做法，选取典型案例阐述了该管道在途经泥石流、滑坡、不稳定斜坡、危岩崩塌等各类典型地质灾害条件下时的敷设情形、地质灾害勘察结论、应对措施的选用和治理效果。以上设计建设方法与实践经验，对复杂地形和地质条件下的长输管道工程设计建设具有指导意义。（图4，参7）

Design and construction of Sino-Burma Oil-Gas Pipeline in typical geological hazard areas

Sino-Burma Oil-Gas Pipeline is the first long-distance, large-diameter and high-pressure oil and gas pipeline laid across Hengduan Mountains area in western Yunnan, which encounters clusters of geological hazard areas in complicated terrain and geological conditions for the first time. This paper introduces the method of choosing large deformation pipeline to improve the pipeline＇s ability in resisting strain failure in areas where geological hazard is highly likely to happen, discusses the laying situations, investigation conclusions of geological hazard, pertinence analysis and management effect of countermeasures as it comes across various typical geological hazards like mudslide, landslide, unstable slope, dangerous- rock slumping and so on. The above methods in design and construction and practical experience are of guiding significance to the design and construction of long-distance oil and gas pipeline under complicated terrain and geological conditions. （4 Figures, 7 References）