全站仪中间自由设站法三角高程测量浅析

Trigonometric vertical distancemeasurement analysis by the method of freedom setting station

阐述了全站仪中间自由设站法三角高程测量的原理及精度分析,经理论分析,该方法在一定条件下可达到三等水准测量的精度要求,特别适合山区高速公路、铁路等线性工程的高程控制测量。

This paper elaborated the height measurement by the method of freedoms station at the midway and accuracy,and had proven this method can meet the requirements of three-order leveling precision and precision request under the definite condition,Specially suit the height measurement,such as mountain area superhighway and railroad...etc.control diagraph.