1 前言在南水北调中线工程的定线工作中,横断面测量的工作占的比重最大,在传统的横断面测量中,将仪器放置在断面基点上,向线路的左右两侧施测,但是在线路中地形起伏变化较大,或者障碍物的影响,通视条件受到限制,有可能施测一个断面需要多次搬动仪器,给测量工作带来很大的不便。如采用全站 1 Introduction In the alignment work of the South-to-North Water Diversion Project, the work of cross-section measurement occupies the largest proportion. In the traditional cross-section measurement, the instrument is placed on the cross-section base point and measured to the left and right of the line, The great fluctuation in the terrain, or obstacles, the viewing conditions are limited, it is possible to measure a cross-section need to move the instrument several times, to the measurement of great inconvenience. If using the whole station