基于水平测量的水利工程高程控制测量研究

Research on Height Control Survey of Hydraulic Engineering Based on Level Survey

水平高程测量结果往往会受到山区地形等因素的限制,导致测量结果产生误差,以某水利工程为研究背景,建立该水利工程的控制网,采用四等水准测量的方式进行测量,分析该测量方案下,水利工程高程、高差的准确性,得出以下结论:利用高精度大地水准面模型对测量数据进行处理后,其准确性较高,说明高精度大地水准面模型能有效消除山区等因素带来的误差影响。采用高精度大地水准面模型得出的高差及高程的精度较高,该模型可减小山区地势对测量带来的负面影响,提高高程测量的准确性,在实际工程中,采用高精度大地水准面模型对水利工程的高程进行测量的可行性较高。

The horizontal elevation measurement results are often limited by mountainous terrain and other factors,resulting in errors in the measurement results.Taking a certain water conservancy project as the research background,the control network of the water conservancy project is established,and the fourth-class leveling method is used for measurement,and the measurement plan is analyzed.Under the following conditions,the accuracy of the elevation and height difference of water conservancy projects,the fllowing conclusions are drawn:After processing the measurement data with a high-precision geoid model,its accuracy is high,indicating that the high-precision geoid model can effectively eliminate factors such as mountainous areas.error effects.The height difference and elevation obtained by using the high-precision geoid model have high accuracy.This model can reduce the negative impact of mountainous terrain on the measurement and improve the accuracy of elevation measurement.In actual engineering,the use of high-precision geoid The level surface model is more feasible to measure the elevation of hydraulic engineering.