回填软土中管道上浮力测试及计算方法

倪伟杰; 朱斌; 陈仁朋; 周建; 黄博

doi:10.11779/CJGE201403021

回填软土中管道上浮力测试及计算方法 English Version

倪伟杰^{1, 2},
朱斌^{1, 2},
陈仁朋^{1, 2},
周建^{1, 2},
黄博^{1, 2}

1. 软弱土与环境土工教育部重点实验室（浙江大学）,浙江杭州 310058; 2. 浙江大学土木工程系,浙江杭州 310058

基金项目: 国家自然科学基金项目（51179169,51225804,U1234204,51178427）; 中央高校基本科研业务费专项资金项目（2012FZA4019）

详细信息

作者简介:
倪伟杰(1989- )，男，硕士研究生，主要从事管道工程等方面的研究。E-mail: niweijie89@163.com。

中图分类号: TU43
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出版历程
- 收稿日期: 2013-04-06
- 发布日期: 2014-03-19

Tests and methods for buoyancy of pipelines in backfill soft clay

NI Wei-jie^{1, 2},
ZHU Bin^{1, 2},
CHEN Ren-peng^{1, 2},
ZHOU Jian^{1, 2},
HUANG Bo^{1, 2}

1. MOE Key Laboratory of Soft Soils and Geoenvironmental Engineering, Zhejiang University, Hangzhou 310058, China; 2. Department of Civil Engineering, Zhejiang University, Hangzhou 310058, China

摘要

摘要: 管道已成为中国油气等流体输送的重要方式,在沿海软土地区中浅埋管道上浮事故屡有发生,严重威胁着能源生命线工程的安全。研发了一套回填软土中浅埋管道上浮力测试的装置及方法,针对常用输气管道开展了足尺模型试验,获得了不同扰动程度软土中的管-土相互作用及管道上浮力,揭示了回填软土中管道的上浮机理。基于多批次不同扰动程度软土中管道上浮力的测试结果,提出了与回填软土不排水剪强度相关的管道上浮力计算方法。
- 模型试验 /
- 管道 /
- 浮力 /
- 软土
Abstract: The pipeline has become an important way for the transmission of oil, gas and other fluid in China. However, floating accidents of shallow pipelines often occur in coastal soft clay areas, which seriously threaten the security of energy lifeline engineering. A set of test devices and methods for buoyancy of pipeline are proposed. Full scale model tests on commonly-used gas pipeline are carried out to get pipe-soil interaction and pipeline buoyancy in soft clay with different disturbance degrees, and then the mechanism of pipeline floating is revealed. Furthermore, a calculation method for prediction of buoyancy of pipelines, which is related to the undrained shear strength of backfill soft clay, is proposed based on the test results of buoyancy of pipelines in several batches of backfill soft clay with different disturbance degrees.
- model test /
- pipeline /
- buoyancy /
- soft clay

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参考文献(12)

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