【摘要】 大小兴安岭多年冻土区是中国重要的地理区域之一,特殊的高冰低温环境,使油气管道铺设方式的选择和由其引发的地质灾害治理显得尤为重要。通过对该区多条输油管道沿线不同季节的监测勘察,提出冻土区管道敷设方式优选地上式、地面式和廊道式。地埋式易诱发冻胀丘、冰椎、冻土沼泽、热融滑塌、水毁等不良地质现象,从而导致管道不均匀抬升下降,翘曲变形、露管或悬管等灾害多发。针对输油管线已发生的地质灾害,对比前后期不同的防治工程措施,提出了混凝土桩连系梁支撑架空治理管道融沉、截水墙结合植被护坡等更为有效的防治方法。更多还原

【Abstract】 Permafrost region is one of the important geographical regions in China,In the northeast regions in China,the choice of laying type of pipes and control Measures of geologic disaster is very important,The better way of laying pipes include laying on the ground,laying on the surface of the earth and laying in the corridor. Laying underground may cause geologic disaster. The main disadvantage of permafrost phenomena to pipeline include: frost mound,ice cone,permafrost swamp,thaw slumping,damaged,etc. They can cause the deformation of the pipeline or exposed. The better control measures include steady with concrete,energy dissipation cut-off wall,revetment with vegetation,etc.更多还原