针对沉降监测中普通水准观测方法无法实施的问题,本文通过对三角高程测量原理与误差来源的分析,研究了中间设站式三角高程测量实施沉降监测的方法,分析了观测精度及可行性。实验表明,该方法可以方便快捷地获取待监测体的沉降数据,提高了工作效率,测量精度达到了建筑变形测量等级二级精度要求。 Aiming at the problem that ordinary leveling observation method can not be implemented in settlement monitoring, this paper studies the method of settlement monitoring by triangulation elevation measurement based on the analysis of trigonometric height measurement principle and error source, and analyzes the observation accuracy and feasibility. Experiments show that this method can obtain the settlement data of the body to be monitored easily and quickly and improve the working efficiency. The accuracy of the measurement has reached the second-order accuracy requirement of the building deformation measurement level.