摘要
针对软土地基的特性,提出了考虑土体抗力释放与结构模型随施工过程改变的计算模型,方法实质是将部分释放掉的抗力作为增量荷载的一部分,通过计算实现其在土弹簧中的重新分布,更加真实地反映软土基础支护实际情况。工程实例计算结果表明通过考虑土体抗力释放与结构模型改变更合理地反映土、桩、支撑之间的共同作用,其计算结果接近实测值。
Considering the characteristics of soft ground, it the calculation model is put torward considering the soil anti-force releasing and structural model changes with the construction process. The method essence is to release the partial anti-force as the part of increment loads. The anti-force distributes again among the soil spring by calculation, which reflects truly the supporting of soft grounds. The calculation result of example shows that the co-action among the soil, pile and supporting have been rationally reflected by means of considering the soil anti-force releasing and the change of structural model. The calculation results are close to the actual surveying results.
出处
《辽宁工程技术大学学报（自然科学版）》
CAS
北大核心
2005年第z1期117-119,共3页
Journal of Liaoning Technical University (Natural Science)
关键词
深基坑开挖
支护结构
变形
应力释放
荷载增量
the deep foundation excavating
supporting structure
deformation
the stress releasing
load increment
