三姓浅滩小古洞至牡丹江河口水准点的高程检测

Height Checking of Benchmarks in Sanxing Shallow Xiaogudong to the Mudanjiang River Mouth

探讨松花江三姓浅滩小古洞至牡丹江河口水准点高程检测网的布设、施测及精度分析方法,同时对经纬仪倾角法跨河水准测量在实际中的应用,以及北方沿江水准点高程变化的成因进行了研究。

The paper discusses the height checking network establishment,surveying and accuracy analysis,introduces the practical use of river crossing levelling by theodolite tilt angle method,and analyses the causes of height change of northern benchmarks along the river.