摘要
通过建立反分析模型，提出强夯后地基土变形模量的确定方法，即可根据计算所得的夯沉量随变形模量变化的关系曲线，运用单值反分析法，以达到夯实效果时的单击夯沉量来确定，进而结合载荷实验的基本理论，按相对沉降法预测夯后地基土的容许承载力。大量反演计算实例表明，所得结果精度满足工程要求，可靠性也较高，为预测强夯加固效果、检验原设计的合理性和改进强夯设计方案提供了一种新的分析途径。
In this paper,through establishing model of back analysis,the modulus of deformation for foundation after dynamic consolidation can be determined by single valued back analysis method, in which the settlement modulus of deformation curve and the final drop settlement for control of soil densification are used.Based on the basic theory of plate loading test,the allowable bearing capacity can be predicted by the relative settlement ratio method. Many practical examples of calculation show that the calculated results can satisfy the engineering demand and have high reliability.Therefore,a new method is provided to predict the improvement effect, to check the rationality of orignal design and to improve the design for dynamic consolidation.
出处
《岩土工程学报》
EI
CAS
CSCD
北大核心
1999年第2期153-157,共5页
Chinese Journal of Geotechnical Engineering
基金
国家自然科学基金
关键词
强夯法
变形模量
承载力
反分析法
dynamic consolidation,modulus of deformation,allowable bearing capacity,back analysis
