免棱镜全站仪在市政污水管网中的应用

Application of Prism-free Total Station in Municipal Sewage Pipeline

在城市污水管网新建过程中,前期测量勘测环境中往往有很多不确定因素,特别是在城市市中心繁华路段,所以一般常用的全站仪有棱镜模式在测量过程中存在很高的危险系数。此时,全站仪无棱镜模式就有着明显的优势,在拥有高精度的同时,也保证了工作效率和测量人员的安全。根据采用全站仪有棱镜和无棱镜模式,结合现场实测数据进行平面位置和高程数据进行精度分析,最终评估全站仪免棱镜模式的精度可靠性。

During the construction of urban sewage pipe network,there are many uncertainties in the pre-survey environment,especially in the busy section of urban center.Therefore,the prism mode of the general total station has a high risk factor in the measurement process.At this time,the total station has obvious advantages without prism mode.It not only has high accuracy,but also guarantees the working efficiency and the safety of the measuring personnel.In this paper,the accuracy of plane position and elevation data is analyzed by combining field measured data,and the accuracy and reliability of Prism-free mode of the total station is finally evaluated.