关于软土地区输气管道抗浮计算的探讨

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作者单位:: 中国石油集团工程设计有限责任公司华北分公司, 河北任丘 062552
North China Company of China Petroleum Engineering Co. Ltd., Renqiu 062552,China

关键词:: 软弱土;管道;抗浮;重塑土;抗剪强度;灵敏度
soft soil;pipeline;floatage resistance;remolded soil;shearing strength;sensitivity

摘要:: 广东珠海—中山天然气管道工程所经地段以海积冲积平原为主,软弱土的厚度为3.0～12.0m,管道完工后某些地段的管道有明显的上浮现象,文章根据软弱土灵敏度的大小,针对该管道上浮段和未上浮段分别提出了管道抗浮计算公式,对于软弱土地区管道抗浮设计及勘察具有参考价值。
Guangdong Zhuhai-Zhongshan natural gas pipeline passes mainly through the marine built alluvial plain with the soft soil depths of 3.0 ～12.0 m. Since the pipeline project was completed, obvious pipeline floating phenomena at some sites have occurred. In this paper, the floatage resistance calculation formulas for floated pipeline and for non-floated pipeline are respectively offered according to the soft soil sensitivities. It is helpful to floatage resistance design and survey of similar pipeline projects in soft soil areas.

2008,4(4): 24-26,4 收稿日期：2008-5-27

分类号：TE973

作者简介：司建国(1975-),男,河南方城人,工程师,1997年毕业于中国地质大学(武汉),现从事石油天然气管道勘察管理工作.