泡沫混凝土劲性复合桩基础数值分析  

Analysis of Foamed Concrete Composite Pile Foundation

作　　者：王超 WANG Chao(PowerChina Shanghai Electric Power Engineering Co.,Ltd.,Shanghai 200025,China)

机构地区：[1]上海电力设计院有限公司,上海200025

出　　处：《电力勘测设计》2021年第S02期26-33,共8页Electric Power Survey & Design

摘　　要：岩溶地区地层一般为一定厚度的软弱土覆盖层,其下又存在有竖向起伏不定呈串珠状的薄顶板溶洞,难以作为合适的桩基持力层。利用ABAQUS有限元软件,建立岩溶地区泡沫混凝土劲性单桩和带承台的群桩复合地基模型,分析不同类型劲性单桩的工程特性和不同类型劲性复合桩基础的工程特性,揭示劲性复合桩地基的变形特性以及荷载传递规律,为岩溶地区地基处理加固提供理论依据。The stratum in karst area is generally a certain thickness of soft soil overburden,under which there is a thin roof cave with vertical fluctuation and bead shape,which is difficult to be used as a suitable pile foundation bearing stratum.In this study,the finite element software ABAQUS is used to establish the composite foundation model of foam concrete rigid single pile and pile caps.The engineering characteristics of different types of stiff single pile and the engineering properties of different types of stiff composite pile foundation are analyzed,and the deformation characteristics and load transfer rules of the composite foundation are revealed,which provides theory for foundation treatment and reinforcement in the karst area.Based on the analysis,this paper provides a useful reference for engineering designers.

关 键 词：岩溶 泡沫混凝土 复合桩基础 

分 类 号：P642[天文地球—工程地质学]