大口径长输油气管道非开挖穿越的适应性  

Adaptability of trenchless crossing for large-diameter long-distance oil and gas pipeline

作　　者：张宝强[1] 焦如义[1] 袁会赞 张倩[1] 刘艳利[1] 

机构地区：[1]中国石油天然气管道科学研究院,河北廊坊065000 [2]中国石油天然气管道局抢险中心,河北廊坊065000

出　　处：《油气储运》2012年第11期871-873,886-887,共3页Oil & Gas Storage and Transportation

摘　　要：大口径长输油气管道非开挖穿越方式选择的合理性和正确性直接影响整个工程的工期、造价以及成败。从地质条件、穿越长度、管径、管道的保护与维修、施工效率、经济性和局限性等方面对比分析了水平定向钻、顶管、盾构3种常用大口径长输油气管道非开挖穿越方式的局限性和适应性,并给出一般选取原则。若地质条件适合,应首选定向钻穿越,顶管和盾构次之。若地质不适合水平定向钻穿越或受管道最小曲率半径的影响穿越距离较短(800m以内),应选择顶管穿越,穿越距离大于800m时,则采用盾构。Rationality and correctness in the trenchless crossing method selection for large-diameter long-distance oil and gas pipeline are related to duration,cost and success of the entire project.Limitations and adaptability of three common trenchless crossing methods such as horizontal directional drilling,pipe jacking and shield-driven tunneling are analyzed in terms of geological conditions,crossing length and pipe diameter,pipeline protection and maintenance,construction efficiency,economy and limitations,and general selection principle are provided.If geological conditions are suitable,directional drilling crossing method will be preferred,followed by the pipe jacking and shield-driven tunneling.If geological conditions are not suitable for the horizontal directional drilling crossing or the crossing distance is shorter (800 m or less) under the influence of minimum radius of curvature of the pipeline,the pipe jacking crossing method will be selected.When the crossing distance is greater than 800 m,the shield shall be used.

关 键 词：长输油气管道 非开挖穿越 适应性 水平定向钻 顶管 盾构 

分 类 号：TE89[石油与天然气工程—油气储运工程]