The Application of Combined GPS.RTK with Electronic Level on High-precision Surface Monitoring

摘要

2351 working face of Daizhuang coal mine is paste filling working face, its mining method is full mining and full backfilling. It is expected that its surface deformation is very small and traditional surface deformation monitoring method is difficult to meet high-precision demand. In order to meet the high precision of measurement area in Daizhuang coal mine, the combination of GPS.RTK and electronic level were studied to measure filled working face, which has achieved good results.