摘要
在基坑开挖过程中,土体的受力特性非常复杂,不能简单地认为某个土体单元卸荷或加载。基坑工程现场实测结果反映:在局部时刻,土体加荷和卸载的情况都可能出现。采用考虑时间和位移效应的土压力模型和基于现场实测资料的反分析方法来分析土体受力特性,是简单且行之有效的。
In the process of pit excavation, the mechanical properties of the soil are very complicated and a soil unit should not be simply regarded as being loaded or unloaded. Site test result of a foundation pit shows that soil loading and unloading may sometimes occur simultaneously. It is a simple and effective way to analyze soil mechanical properties by means of earth pressure model considering time-displacement effect and back-analysis based on site test data.
出处
《建筑技术》
北大核心
2005年第12期888-890,共3页
Architecture Technology
基金
国家自然科学基金项目(50278042)
关键词
基坑开挖
土体受力
土压力模型
pit excavation
soil loading
earth pressure model
