浅谈高等级三角高程测量在水电工程高程测量中的应用

A Brief Discussion of the Application of High Order Trigonometric Leveling in the Elevation Survey of Hydroelectric Power Project

水电工程一般建在深山峡谷中,陡坎多、高差大,不利于几何水准测量。三角高程测量不受地形起伏限制,外业测量工作量小、速度快,作业人员少,在水电工程低精度高程测量中应用广泛。怎样提高三角高程测量精度,一直是大家关注的问题。本文介绍了溪洛渡水电站三角高程测量的实践经验供大家借鉴。

Hydropower projects are built in the mountains or deep valleys,whose scarps and large height difference are not favorable to geometric leveling.Unlimited by the undulating topography,trigonometric leveling is applied widely in low order elevation surveying because of its low field operation workload,quick speed and low consumption of human resource.It is concerned by all how to improve the accuracy of trigonometric leveling.This paper shares the experience of applying trigonometric leveling in Xiluodu hydropower plant.