上海某工程场地砂土液化不同判别方法对比分析

Comparative Analysis on the Discrimination Methods of Sand Liquefaction at a Project Site in Shanghai

目前,建筑、铁路、公路等行业的砂土液化判别标准存在较大差异,在实际项目中常会遇到同一场地修建不同工程,由于执行不同行业规范,导致砂土液化判别结果存在差异。在分析GB 50011—2010《建筑抗震设计规范》和GB 50111—2006《铁路工程抗震设计规范》中砂土液化判别方法、原理及参数选取的基础上,结合上海市包头路某项目,比较2种规范砂土液化判别方法,探讨了两者的差异与优势,对研究区砂土液化判别标准进行探讨,进而对工程场地稳定性作出正确评价。

At present,there are quite differences in sand liquefaction discrimination standards in building,railways,highways and other industries.Due to the implementation of different industry standards in actual projects,the results of sand liquefaction discrimination are different for different projects built on the same site.On the premise of analyzing the discrimination methods,principles and parameter selection of sand liquefaction in GB 50011-2010 Building Seismic Design Code and GB 50111-2006 Railway Engineering Seismic Design Code,combined with a project on Baotou Road,Shanghai,the sand liquefaction discrimination methods of two standards are compared,and the differences and advantages of two methods are discussed.The discrimination criteria for sand liquefaction in the research area are discussed,and then the stability of the project site is reasonably evaluated.