不良地质条件下的桩基础选型研究  

Research on Pile Foundation Selection Under Bad Geological Conditions

作　　者：王宇江 WANG Yu-jiang(Liaoning Zhongbo Engineering Survey Co,Ltd,Fushun 113122,China)

机构地区：[1]辽宁中博工程勘测有限公司,抚顺113122

出　　处：《建材世界》2024年第3期106-109,共4页The World of Building Materials

摘　　要：论文基于典型不良地质条件中的冻土地基分析,明确了冻土地基下桩基础形式,并基于桩基础应力分布,给出了最佳桩基础选型。结果表明:融土过程下桩基础位移更大,相对于冻土过程更危险。锥柱+直柱+底板基础形式在冻土不良地质环境下位移更小,且能承担荷载更大,该类型基础实用性更强。This article analyzes the frozen soil foundation under typical unfavorable geological conditions,clarifies the form of pile foundation under frozen soil foundation,and based on the stress distribution of pile foundation,provides the optimal selection of pile foundation.The results indicate that the displacement of pile foundation is greater during the thawing process,which is more dangerous compared to the frozen soil process.The form of cone column+straight column+bottom plate foundation has smaller displacement and can bear larger loads in adverse geological environments of frozen soil,making this type of foundation more practical.

关 键 词：不良地质 冻土环境 桩基础 有限元模型 选型优化 

分 类 号：TU473.1[建筑科学—结构工程]