深基坑开挖支护变形规律与控制

Deformation Law and Control of Deep Foundation Pit Excavation Support

随着基坑不断加大,改变了地下水和原有土质的应力,这就对支护的结构提出了更高的要求,以防工程维护结构产生变形甚至损坏。分析了深基坑护体系的概念,通过数学预测方法和时空效应对深基坑支护结构的变形规律进行分析,并提出了相应的控制方法,对于防止支护结构变形,更好地优化工程维护具有参考价值。

The design of deep foundation pit support structure is the main procedure in underground engineering. With the continuous increase of foundation pits,the stress of groundwater and original soil is changed. Higher requirements are placed on the structure of the support to prevent deformation or even damage to the engineering maintenance structure. This paper analyzes the concept of deep foundation pit protection system,analyzes the deformation law of deep foundation pit support structure by mathematical prediction method and space-time effect,and proposes corresponding control method to better prevent deformation of support structure and optimize it. Engineering maintenance has a reference value.