基于精密三角高程测量的跨河水准测量应用研究  

Applied Research of Cross-river Leveling Based on Precision Trigonometric Leveling

作　　者：黄红梅 HUANG Hongmei(Guangdong Hydropower Second Bureau Group Co.,Ltd.,Guangzhou 511340,China)

机构地区：[1]广东水电二局股份有限公司,广州511340

出　　处：《广东水利水电》2024年第6期95-99,共5页Guangdong Water Resources and Hydropower

摘　　要：本文详细介绍了基于精密三角高程测量的跨河水准测量施测过程及计算原理,通过同时对向观测消除仪器高、地球曲率半径和大气垂直折光对高差的影响,解决了高精度棱镜高差测量问题,并应用于粤东城际铁路“一环一射线”YDZH-8标项目二等高程控制网复测,通过与全线采用传统几何水准测量方法进行对比分析,验证其可行性。In this paper,the measurement process and calculation principle of cross-river leveling based on precision triangulation are introduced in detail.By simultaneously surveying in opposite directions,to eliminate the influence of instrument height,Earth curvature radius,and atmospheric vertical refraction on height difference.And the problem of high precision measurement prism height difference is solved.The method has applied to remeasure the second level control network of YDZH-8 project of“One ring,one ray”of East Guangdong Intercity Railway.And by comparing and analyzing with the whole line using the traditional geometric leveling method,its feasibility was verified.

关 键 词：精密三角高程测量 跨河水准测量 水准测量 

分 类 号：P224.2[天文地球—大地测量学与测量工程]