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Research on durability and lifetime prediction of functionally gradient segment of shield tunnel
Author(s): 
Pages: 28-30
Year: Issue:  3
Journal: Ready-mixed Concrete

Keyword:  功能梯度材料 寿命预测 分层设计 耐久性;
Abstract: 针对隧道工程环境恶劣,要求混凝土材料耐久性高等特点,分析了隧道盾构管片耐久性的主要影响因素。以结构的耐久性为目标,采用功能梯度材料设计原理,提出了隧道盾构管片分层设计的技术路线。此外,还介绍了基于氯离子扩散理论模型的混凝土材料使用寿命预测方法,并对功能梯度盾构管片混凝土的使用寿命进行了对比计算和分析。
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