轻型动力触探检测地基承载力的影响因素研究  

Study on Factors Affecting the Accuracy of Testing the Bearing Capacity of Foundation by Light Cone Dynamic Penetration Test

作　　者：王佳欣 刘晓 徐燕[3] 幺华丞 WANG Jiaxin;LIU Xiao;XU Yan;YAO Huacheng(Jilin Forestry Survey and Design Institute,Changchun 130022,China;Jilin Research and Design Institute of Building Science,Changchun 130011,China;Jilin University,Changchun 130012,China)

机构地区：[1]吉林省林业勘察设计研究院,长春130022 [2]吉林省建筑科学研究设计院,长春130011 [3]吉林大学,长春130012

出　　处：《路基工程》2025年第1期74-78,共5页Subgrade Engineering

摘　　要：针对在地基检验中采用轻型圆锥动力触探试验常出现地基承载力偏低,检测得出的地基土承载力特征值与勘察单位的建议值差异过大的问题,结合长春某工程项目,根据多组动探检测数据统计,分析造成检测值偏低的影响因素,并提出临界影响深度的取值方法和检测建议。In the foundation soil test,when the light cone dynamic penetration test was used,the bearing capacity of the foundation detected was often low,and the difference between the characteristic value of subsoil bearing capacity and the recommended value given by Geological Exploration Company was too large.In this paper,combined with a project in Changchun,the data of several groups of light dynamic penetration tests were processed and counted,and the influencing factors that caused the low testing value were analyzed,and then the calculation method and detection suggestions of critical affect-depth were put forward.

关 键 词：轻型圆锥动力触探 临界影响深度 地基承载力特征值 黏性土 地基检验 

分 类 号：TU442[建筑科学—岩土工程]