sponsored by the National Natural Science Foundation of China (Nos.41074010, 41104005 and 40904004);the Scientific Research Foundation of Key Laboratory for Land Environment and Disaster Monitoring of SBSM (Nos.LEDM2010B12 and LEDM2009A01) ;the Jiangsu Qinglan Project
Owing to the variability of mine surfaces, it is difficult to obtain the deformation monitoring data of the observation stations by traditional leveling technique. GPS RTK (Real-Time Kinematic) technique was employe...