动力触探试验和标准贯入试验指标相关性研究  

Correlation Study of Dynamic Penetration Test Index and Standard Penetration Test Index

作　　者：牛建光[1] 孙成科[1] 蒯志要[1] 羊小云[1] 

机构地区：[1]中交第一航务工程勘察设计院有限公司,天津300222

出　　处：《港工技术》2013年第5期52-54,共3页Port Engineering Technology

摘　　要：在地基处理的效果检测中,圆锥动力触探试验因其具有贯入连续,设备简单,工期短等特点,具有广泛的应用。目前根据动探指标确定地基承载力还没有太多的经验公式,本文研究圆锥动力触探击数与标准贯入击数的相关性,将其折算为标准贯入击数后,查表得出承载力特征值,对比载荷试验结果,在地基检测中以便快速准确确定地基处理效果,是否达到设计要求。The effect detection results of foundation treatment show that conic dynamic penetration test（DPT） is of the advantages such as the continuity of penetration,simple equipment and shorter construction period,it has been widely applied. At present,only a few mpirical formulae are defined by using DPT index to determine the foundation bearing capacity. By studying the correlation of conic DPT and SPT blow counts,and converting DPT into SPT blow count,getting the bearing capacity characteristic value from the corresponding table,comparing the load test results,whether the foundation treatment effect meets the design requirements can be determined quickly and accurately in the foundation detection.

关 键 词：圆锥动力触探试验 标准贯入试验 静载荷试验 京唐港 地基处理 

分 类 号：TU413.5[建筑科学—岩土工程]