基于GNSS技术与全站仪在圆柱形建筑点位测设中的应用及精度分析

Application and Accuracy Analysis of GNSS Technology and Total Station in the Location Survey of Cylindrical Building

全球导航定位技术(GNSS)快速发展,在建筑工程领域的应用越来越广泛。本文主要介绍了GNSS技术的发展、定位原理、测设精度,结合实际工程案例分析GNSS接收机和全站仪对圆柱形建筑物点位测设的方法以及定位精度,解决了传统点位测设方法过程复杂、效率低下、精度不一等问题。利用GNSS接收机和全站仪把圆柱形建筑物底部的基坑主要轴线和次要轴线以及重要的节点,通过与0.5 s全站仪复测点位坐标进行对比分析,体现出了GNSS技术和全站仪对圆柱形建筑物快速有效高精度的定位。实验结果表明,GNSS技术和全站仪点位测设操作简单,精度较高,仪器费用较低,而且测设精度能够满足建筑工程要求,可以为同类工程提供实践支持。

With the rapid development of global navigation and positioning technology,the field of construction engineering is more and more widely used.In this paper,the development of GNSS technology,the principle of positioning and the accuracy of measurement are introduced in detail.Combined with practical engineering cases,this paper analyzes the method and positioning accuracy of GNSS receiver and total station for cylindrical building point location,which makes up for the complex process,low efficiency and different accuracy of traditional point location methods.The GNSS receiver and total station are used to compare the main axis,secondary axis and important nodes of the foundation pit at the bottom of the cylindrical building with the coordinates of the retest points of the 0.5 s total station,which shows the rapid,effective and high-precision positioning method of the GNSS technology and total station for the cylindrical building.The experimental results show that the GNSS technology and total station point location measurement are simple in operation,high in accuracy and low in instrument cost,and the measurement accuracy can meet the requirements of construction engineering greatly,which can provide practical support for similar projects.