Page - 1115 - in Book of Full Papers - Symposium Hydro Engineering

Year of Construction Head water level 2000 397.2 m a.s.l. Number of turbines 2 Kaplan bulb turbines Impounding head 5.93 m Storage capacity 2’300 million m3 Capacity 23 MW Av. annual production 115 GWh Main water-retaining components 4 radial-gated weirs, each 14.50 m wide 3 piers, each 4.0 m wide Powerhouse (W x L): 37 m x 62 m Left and right abutment guide walls 3.1. DOCUMENTATION AND ARCHIVES The plant’s operator is responsible to maintain for each plant an archive with below indicated relevant plans and reports. These archives constitute an essential input basis for the in-depth safety assessment.  Design and as-built plans and information of as-built material’s properties based on QA&QC data collected during construction  Structural, hydrological and hydraulic analyses  Geotechnical investigations and geological observations  Plant operational reports  Annual inspection and monitoring reports  Reports on maintenance and functional tests of relevant appurtenant structures  Accident and operating anomalies reports  Surveillance manuals, O&M manuals and Emergency planning reports 3.2. ASSESSMENT OF ALL WATER-RETAINING AND SAFETY-CRITICAL APPURTENANT STRUCTURES BASED ON EXISTING DOCUMENTATION AND VISUAL INSPECTION After achieving overview of the plant’s relevant documentation, the team of civil, mechanical and electrical engineering experts and a geologist expert perform on-site visual inspections and a present state final qualitative evaluation. In 1115