深基坑水平位移监测方法的分析与比较

在深基坑开挖的施工过程中,采用何种方法进行水平位移监测,既能够保证精度,又可节省成本,是基坑施工监测的关键问题之一。本文讨论了四种常用的支护结构顶部水平位移监测方法,并将轴线法、单站改正法、前方交会法与测小角法进行精度比较,得出:测小角法与其他方法相比,计算简单、操作方便、监测精度较高,是目前基坑监测中运用较广泛的一种方法。

Monitoring Methods and Accuracy Analysis of Horizontal Displacement of Deep Foundation

During the excavation of deep foundation pit,which method we can adopt to monitor the horizontal displacement,that can not only ensure accuracy,but also cut costs,is a key issue to the foundation for the construction monitoring.This paper analysed four methods that are commonly used to monitor horizontal displacement of the top of supporting structure,the axis method,single-point correction method,forward intersection method were compared with small-angle measurement method,and that:small-angle measurement method has a simple calculation and a convenient operation and a high accuracy of monitoring,and is wider used in excavation monitoring.