中间设站法三角高程测量代替三等水准测量探讨

Discussion on Triangular Elevation Measurement with Intermediate Station Method Instead of Third-Class Leveling Surveying

介绍了中间设站法三角高程测量的工作原理、误差来源及观测方法;探讨了中间设站法三角高程测量代替水准测量的可能性,并使用0.5″全站仪在地形起伏较大地区选取若干测段进行实地测量,对中间设站法三角高程测量和三等水准测量的结果进行了实地验证;证明了在控制好观测距离、观测时间、垂直角等条件下,中间设站法三角高程测量可以代替三等水准测量,提高了工作效率,降低了工作强度,具有一定的实用性。

This paper introduces the working principle,error source and observation method of triangulation height measurement of intermediate station method,discusses the possibility of replacing leveling with triangle height measurement by intermediate station method,and uses 0.5″total station instrument to select several measuring sections in terrain undulating areas to carry out field measurement.The results of the leveling measurement have been verified in the field.It is proved that under the condition of controlling the observation distance,observation time,vertical angle,et c.,triangular elevation measurement with intermediate station method can replace third-class leveling surveying,which improves the working efficiency and reduces the work intensity,and has certain practicability.