紧邻高边坡深基坑开挖监测联合支护体系的建立

Establishment of Combined Support System for Excavation Monitoring of Deep Foundation Pit Adjacent to High Slope

在山岭地区的工程建设过程中,紧邻边坡的深基坑频繁出现,为了便于动态掌握基坑稳定性随开挖的变化及验证设计计算的合理性、实现基坑的信息化施工,监测工作的顺利进行显得尤为重要。论文以郴州市人民东路下穿青年大道基坑开挖支护工程为例,详细论述了基坑监测体系的建立,根据场地特点建立能够动态观测基坑侧壁位移及结构应力变化的联合监测体系。经实践证明,该监测体系起到了很好的监测效果,确保了项目的顺利完成,并可为类似环境条件下的工程监测网的建立提供参考。

In the process of engineering construction in mountain area, the deep foundation pit close to the slope appears frequently. In order to grasp the dynamic change of foundation pit stability with excavation, verify the rationality of design and calculation, and realize the information construction of foundation pit, the smooth progress of monitoring work is particularly important. Taking the foundation pit excavation and support project of Renmin East Road under Qingnian Avenue in Chenzhou City as an example, this paper discusses the establishment of the foundation pit monitoring system in detail. According to the characteristics of the site, a joint monitoring system which can dynamically observe the displacement of the side wall of the foundation pit and the change of the structural stress is established. The practice proves that the monitoring system has a good monitoring effect, ensures the smooth completion of the project, and can provide reference for the establishment of engineering monitoring network under similar environmental conditions.