水电站高程控制测量方法的分析与探讨

Analysis and Discussion of Hydropower Station Elevation Control Survey Method

经对水电站前期勘测和施工测量控制网中电磁波测距三角高程代替水准测量方法的分析与探讨,电磁波测距一级三角高程导线网完全可以代替水准网(代替四等水准)作为测区的首级控制或加密高程控制(代替等外水准)。而且在现有的条件下是一种科学的、经济合理的作业手段。可以根据各地的实际情况提出自己的技术设计,以指明能代替哪一级的技术方案作为作业的依据。

The analysis and discussion on replacement of the level survey by the electromagnetic distance measuring triangle elevation in the early stage survey and construction survey control net for a hydropower project demonstrate that the electromagnetic distance measuring level I triangle elevation traverse net can completely replace level net（replacing class IV level） as primary control or refined elevation control（replacing below-order leveling） in the survey area. It is considered to be a scientifi c, economic and reasonable working approach under present circumstances. The working team can put forward its own technical design according to the actual conditions in various areas to show which level of survey could technically be replaced as their working basis.