摘要
从工程实践的角度,对软土地基平板载荷试验的稳定标准问题进行了研究,对比分析了不同尺寸荷载板慢速法、准慢速法、快速法载荷试验对承载力特征值和极限值判定的差异,分析了《工程地质手册》中外推法公式对软土地基载荷试验的适用性,改进了《工程地质手册》中外推法公式,提出用外推法及拟合法来综合描述慢速法与快速法的相互关系。
The stability standards for plate load tests on soft foundation are studied based on the engineering practice. The differences of determing the characteristic values of bearing capacity and the ultimate values of bearing capacity among the slow method, the quasi-slow method and the quick method under different loading plates are analyzed. Through the analysis, the applicability of the extrapolation formula to the plate load tests on soft foundation is investigated. The extrapolation formula is improved. The extrapolation formula and the fitting method are proposed to describe the interrelation between the slow method and the quick method.
出处
《岩土工程学报》
EI
CAS
CSCD
北大核心
2017年第S2期87-90,共4页
Chinese Journal of Geotechnical Engineering
基金
现代建筑设计集团科研项目(15-1类-0016-基
15-1类-0024-基)
关键词
软土地基
载荷试验
承载力判定
稳定标准
外推法公式
soft foundation
plate load test
determination of bearing capacity
stability standard
extrapolation formula
