摘要
在隧道病害日益增多的背景下,保障隧道全寿命的运营安全和高效是现在和将来必须面对的问题。区别于其他建筑或设备,隧道具有纵向长线性、横向自相似、埋于地下的特点,使得既有维养策略难以适用于隧道结构。本文总结分析了预制拼装式隧道病害类型和原因,提出了五层病害分类方法和三界八门病因分类方法;分析了隧道构造特殊性和病害的特殊性,揭示了隧道维养特殊性;从隧道服役要求和角度,分析了维养的前提条件和维养的目的;在三界八门病因分类的基础上,提出预制拼装式隧道病害宏观动态演化机理;在演化机理和维养特殊性的基础上,提出了适用于隧道的前摄性维养策略。本研究成果不仅适用于预制拼装式隧道,也适用于现浇式隧道,对地下结构类工程也具有理论指导和工程借鉴意义。
In the context of the increasing number of tunnel diseases,ensuring safe and efficient operation throughout the tunnel life is an issue that must be faced now and in the future.Unlike other buildings or equipment,tunnels are a linear longitudinal,self-similar transversely,and buried underground,making it difficult to apply existing maintenance strategies to tunnel structures.For prefabricated assembled tunnels,engineering research and theoretical analysis were used to propose a suitable forward-looking maintenance strategy for the tunnels.The research includes:firstly,summarizing the types and causes of prefabricated assembled tunnel diseases,proposing a five-layer disease classification method and a three-world,eight-door disease cause classification method.Then,the special characteristics of tunnel structure and diseases are analyzed to reveal the special characteristics of tunnel maintenance.Then,the prerequisites of maintenance and the purpose of maintenance are analyzed from the tunnel service requirements and perspectives.Then,the macro dynamic evolution mechanism of prefabricated assembled tunnel disease is proposed based on the classification of the three boundaries and the eight causes of disease.Finally,a pre-collective maintenance strategy applicable to tunnels is proposed based on the evolutionary mechanism and maintenance specificity.The research results are not only applicable to prefabricated assembled tunnels,but also to cast-in-place tunnels,and also have theoretical guidance and engineering reference significance for underground structure-type projects.
作者
李攀
谢雄耀
Li Pan;Xie Xiongyao(School of Civil Engineering,Tongji University,Shanghai 200092,P.R.China)
出处
《地下空间与工程学报》
CSCD
北大核心
2023年第2期650-661,共12页
Chinese Journal of Underground Space and Engineering
基金
国家重点研发计划(2019YFC0605100,2019YFC0605103)
国家自然科学基金(51978431,52038008)
上海市科技发展基金(20DZ1202004)。
关键词
隧道
病害
维养
策略
前摄性
tunnels
disease
maintenance
strategy
forward maintenance
