瑞利波法在确定冲积土地基承载力中的应用  

Application of Rayleigh wave method in determining foundation bearing capacities of alluvial soils

作　　者：鲁道洪[1,2] 许强[1] 

机构地区：[1]成都理工大学地质灾害防治与地质环境保护国家重点实验室,成都610059 [2]绵阳市川交公路规划勘察设计有限公司,四川绵阳621000

出　　处：《工程勘察》2012年第6期71-76,共6页Geotechnical Investigation & Surveying

摘　　要：以安县晓坝镇旁边的茶坪河一级阶地为研究场地,利用瑞利波勘探技术结合原位钻探技术,对该场地土层进行了大致划分。基于瑞利波法测得的大量剪切波波速数据、静力触探和标准贯入试验计算的地基承载力数据,分别建立了粉质粘土和砂土的上述两物理量之间的定量关系式。统计和回归分析表明,剪切波速度和地基承载力之间存在线性关系。该试验研究结果有助于快捷、经济地确定河流冲积土的地基承载力,进一步扩展了瑞利波法在岩土工程勘探中的应用。Taking the first-order terrace of Chaping River near Xiaoba town in An＇ xian county as the study site, a rough division of the strata has been done by using the Rayleigh wave exploration technique and the field boring exploration technique. Based on large amounts of shear wave velocity data obtained from Rayleigh wave method and on the foundation bearing capacities calculated from static penetration test and standard penetration test, the quantitative relationships between these two variables for silty clay and sand have been established respectively. The statistic and regression results show the linear relationship between the two variables. The study results contribute to determine the bearing capacity of alluvial soils fast and economically, and spread the application of Rayleigh wave method in geotechnical engineering exploration.

关 键 词：瑞利波法 静力触探试验 标准贯入试验 剪切波速度 地基承载力 

分 类 号：P631.4[天文地球—地质矿产勘探]