长江科学院院报2017，Vol.34Issue(11)：66-71,6.DOI:10.11988/ckyyb.20160754
静载荷试验确定复合地基承载力的安全储备研究
A Safety Reserve Index Evaluating the Bearing Capacity of Composite Foundation Based on Loading Test
赖夏蕾 1简文彬2
作者信息
- 1. 福州大学环境与资源学院,福州350108
- 2. 福州大学岩土工程与工程地质研究所,福州350108
- 折叠
摘要
Abstract
In some projects there are restrictions in static loading tests and thus the characteristic load bearing capacity is unable to be determined.Through analyzing a project of cement-soil pile composite foundation,the ultimate bearing capacity of the piles and composite foundation is predicted with "gray model" under limited test conditions.Meanwhile,the ratio of the bearing capacity to the characteristic bearing capacity determined from relative deformation is defined as safety reserve index "K",and 113 groups of static loading test are analyzed to obtain the K value of this region.The statistical result is confirmed by the project.It should be noticed that K is a regional and experiential value,and it can be used to predict the ultimate bearing capacity of cement-soil pile composite foundation based on the known bearing capacity determined by relative deformation.关键词
水泥土搅拌桩/静载荷试验/复合地基承载力/安全系数/灰色模型Key words
cment-soil piles/static loading test/bearing capacity of composite foundation/safety reserve/gray model分类
建筑与水利引用本文复制引用
赖夏蕾,简文彬..静载荷试验确定复合地基承载力的安全储备研究[J].长江科学院院报,2017,34(11):66-71,6.
