Control survey is the fundamental work in geological survey and an important step in coal exploration geological survey.Reliable control point results can effectively guarantee the spatial position of survey points in the follow-up work of coal exploration,and can improve the accuracy of the geologic map of the whole survey area.Compared to traditional control surveying techniques,GNSS technology plays a crucial role in geological exploration engineering surveying operations thanks to its characteristics of automation,all-weather,high accuracy,high efficiency,and no need for inter station visibility.Taking the coal exploration in H exploration area in Yongchang County,Gansu Province as an example,this paper briefly analyzes the principle of the survey of E-class GNSS control points and the implementation steps of the control survey project.Through the analysis of the data processing results,reliable data are obtained.From the design of the control network to the mapping point survey,the coal exploration geological survey is more reliable and accurate.
关键词
E级GNSS控制测量/控制点/基线解算/网平差
Key words
E-class GNSS control survey/control points/baseline solution/network adjustment
维普
万方数据