Deformation detection methodology and engineering application for tailrace conduit in pumped-storage power stations

Abstract Through systematic analysis of the technical parameters and measurement principles of the total station scanner, this study validates the applicability of total station scanning technology for deformation monitoring in tailrace conduits of pumped-storage power stations. A comprehensive theoretical framework was established to clarify the technical approach and standardized operational procedures for deformation detection, with demonstrated measurement accuracy meeting engineering specifications. Implementing this methodology at the Xianju Pumped Storage Power Station, successful deformation detection was achieved in the first tailrace conduit. Field measurement data confirms the remarkable reliability and engineering applicability of the total station scanning method for deformation monitoring, providing an innovative solution for structural deformation detection in hydraulic pipeline systems of pumped-storage facilities.