Design and precision evaluation of GPS network near the wells in Longwangzhuang mine

In order to perform the mine connection measurement,transfer the coordinate system to the underground,and serve all kinds of construction of the GPS technology is applied to design the survey control network near the wind well and deputy well in the longwangzhuang mine.Through the field observation,data processing and precision evaluation in the office,the coordinates of the control network points near the well are obtained.The results of the survey adjustment show that the accuracy of survey control network near the wells in the longwangzhuang mine is very high,and completely meets the engineering requirements.