地下管线管体破坏模式分类与发生机制

Mode classification and mechanism of failure of underground pipeline body

在对地下管线震害的大量文献资料进行搜集研究的基础上,依据宏观表现形式和微观破坏现象将管体破坏归纳总结为3个大类、9种典型破坏模式,并对每种破坏模式进行了深入的成因机理分析。基于所提的破坏模式分类和成因机理分析,现场工程师将能快速准确地对地下管线管体震害的破坏模式进行识别,根据其表现形式和内在的成因机理科学合理地选择调控维护措施。所述方法为地下管线抗震设计和现场施工提供了理论依据和实践经验,具有显著的经济效益。

Based on collecting and researching a great amount of documents of seismic damages to underground pipeline, this paper sums up three main types of pipeline damages and nine typical destruction patterns according to the macro damage forms and the micro damage phenomena, and have an in-depth analysis of the cause and the mechanism of each destruction model. With the classification of models and the analyses of cause and mechanisms, the on-the-spot engineers can identify the destruction pattern of seismic damage of the underground pipeline body promptly and exactly, choose the measures of management and maintenance scientifically and rationally in line with its forms and internal cause. At the same time, this paper provides theoretical foundations and practical experience for the anti-seismic design and the spot constructions of the underground pipeline, which shows remarkable economic benefits.