GNSS技术在基坑水平位移监测中的应用研究  

Application of GNSS technology in horizontal displacement monitoring of building excavation

作　　者：张建坤[1] 王智[1] 谷冰峰 贾亮[1] 

机构地区：[1]北京市勘察设计研究院有限公司,北京100038

出　　处：《工程勘察》2016年第10期61-65,共5页Geotechnical Investigation & Surveying

基　　金：北京市优秀人才培养基金--首都(特大城市)道路交通安全运营地下风险预防技术研究资助

摘　　要：基坑桩顶水平位移监测是获取基坑围护结构体系安全状态的重要手段,本文介绍了目前常规基坑桩顶水平位移监测方法存在的缺陷,提出采用GNSS技术进行基坑桩顶水平位移监测,并以某工程为例对比分析了GNSS技术和常规监测方法在精度和可靠性方面的差异,结果证明GNSS技术完全适用于基坑桩顶水平位移监测,并分析得出了满足规范要求的最佳监测时段长度。The horizontal displacement monitoring is important for obtaining the retaining structure of the foundation pit system security state. This paper introduces the defects existing in the common foundation pile top horizontal displacement monitoring method,and proposes to use the GNSS technology to monitor the horizontal displacement. And taking a project as an example,the GNSS technique and conventional monitoring methods are compared in terms of accuracy and reliability and the best length of GNSS observation time is given for satisfying the specifications. The results show that the GNSS technique can be applied to the pile top horizontal displacement monitoring.

关 键 词：GNSS技术 基坑工程 基坑水平位移监测 

分 类 号：P228[天文地球—大地测量学与测量工程]