本文根据唐山地区的东、中、西三条剖面上的地震喷砂的物质成分和理化性质等分析,探讨了不同烈度区液化砂土的颗粒成分、化学成分、物理性质及砂颗粒形态等变化规律,并根据这些规律,编制出以物质成分和性质为基础的、具有多种因素的砂土液化判别图。该图可供砂土液化预测、砂土液化研究者参考。 Based on the material composition and physicochemical properties of the sand blasting on the east, middle and west sections of Tangshan area, this paper discusses the variation of the particle composition, chemical composition, physical properties and sand particle morphology of the liquefied sand in different intensity regions , And according to these rules, we draw out the sand liquefaction discrimination map based on the material composition and properties with many factors. The figure is available for prediction of sand liquefaction, sand liquefaction researchers reference.