王猛;

• 1:海洋石油工程股份有限公司

摘要(Abstract)：

本文将非线性管土模型应用于海底管道悬跨评估中。对管土模型的关键参数进行了敏感性分析。结果表明,关键参数中的土壤接触力对土壤剪切刚度和吸附力比较敏感,而对无量纲化最大刚度、吸附力衰减长度和再沉降偏移系数不敏感。土壤剪切强度较大时,管道沉降量小,P-y曲线变化范围较窄。非线性土壤在循环载荷作用下发生软化,使跨肩处管道疲劳损伤减小,最大损伤出现在跨中。

关键词(KeyWords)： 自由悬跨;海底管道;非线性管土作用;疲劳

Abstract:

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基金项目(Foundation):

作者(Author): 王猛;

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参考文献(References)：

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