深基坑开挖坑周土体变形时空效应初探

本文指出 ,在基坑设计工作中 ,应充分考虑时空效应 ,做到“随挖随支” ,约束其变形的产生 ,以减小土体强度的衰减而增加围抗结构的稳定性和安全性。最后 ,本文结合某工程实例进一步论证了深基坑开挖中存在着时空效应。

Preminary Investigation on Time-effect of Soil Deformation Around Deep Foundation Pit During Excavation

This paper points out that time-effect should be thoroughly considered in the design of foundation pit excavation.Bracing should be installed in time as the excavation is in process,So that the soil deformation can be controlled to lessen the weakening of soil strength and to increase the stability and safety of the bracing structure.The existance of time-space effect is further demonstrated by engineering practical example.