摘要
从砂土液化、基础位移、地震波效应三方面对管道的震害原因进行了分析,结合地下给排水管道的破坏形式,应用单因素分析方法对震害致使管道失效的主要因素进行了研究。研究结果表明:在地震烈度相同、地质构造相近的情况下大管径管道施工中应优先选择预应力钢筋混凝土管;给排水管道采用混凝土带型基础震害率较低;球墨铸铁管管径在DN200时抗震性能最佳。
The authors of this paper have studied the causes of the damage to pipelines from the aspects of liquefaction,foundation displacement and seismic wave effect and on the basis of the failure mode of underground water supply and drainage pipelines,examined the main causes of pipeline failure caused by earthquakes with single factor analysis method.The results show that in the case of the same seismic intensity and similar geological structure,the prestressed concrete pipe should be selected preferentially in the construction of large diameter pipelines,that the seismic damage to water supply and drainage pipelines with concrete belt foundation is low,and that the seismic performance of ductile iron pipes is the best when the pipe diameter is DN200.
出处
《唐山学院学报》
2017年第6期42-45,共4页
Journal of Tangshan University
基金
河北省科学技术研究与发展计划项目(13214521)
唐山市科学技术研究与发展计划项目(131302109b)
唐山学院市属重点实验室基金项目(13009B)
关键词
给水排水管道
失效模式
地震次生灾害
water supply and drainage pipeline
failure mode
earthquake secondary disaster
