Jungel E.,Landestalsperrenverwaltung des Freistaates Sachsen
GWF, Wasser - Abwasser | Year: 2011
After the benchmarking process was established within the German water economy both in wasterwater treatment and water supply as an important instrument for hard check and efficiency increase of companies, a task force took the initiative to develop a benchmarking version to run barrages. Together with the company aquabench GmbH and the IWW Water Centre in a first step a process pattern for deployment benchmarking was proved. The task force was motivated by successful results to advance the process pattern to benchmark absorbed cost. The outworking is described below.
Fleischhauer S.,Landestalsperrenverwaltung des Freistaates Sachsen
WasserWirtschaft | Year: 2012
Levelings are predominantly carried out for the monitoring of the height of dams. Geometric levelings are usually used outside the dam structure. Hydrostatic levellings are frequently carried out in the constructions themselves. After several years of comparison measurements at the Dröda dam in Saxony, it could be determined, that under certain conditions the geometric leveling is an alternative to the hydrostatic leveling.
Schmidt J.,University of Siegen |
Wieland J.,University of Siegen |
Jensen J.,University of Siegen |
Findeisen B.,Landestalsperrenverwaltung des Freistaates Sachsen |
Haufe H.,Lahmeyer Hydroprojekt GmbH
WasserWirtschaft | Year: 2016
The Operation Upper Elbe Valley of the State Reservoir Administration of Saxony (LTV) is planning the restoration of the safety against overtopping of the Malter dam by expanding the spillway and the increase in the hydraulic capacity of the valves in the diversion tunnel. Due to the special structure geometries a hydraulic model test at a scale of 1:25 was necessary to review and optimize the performance of the preliminary design. Due to investigations of several component variants, as well as adjusted operating recommendations the preliminary design has been optimized and an effective convey of discharge has been proved.
Analysis of the behaviour of a 100-year-old dam before and while emptying, rehabilitation and test impoundment [Analyse des Verhaltens einer 100-jährigen Talsperre vor und bei Entleerung, Sanierung und Probestau]
Cherubim C.,Landestalsperrenverwaltung des Freistaates Sachsen
WasserWirtschaft | Year: 2014
The 100-year-old Klingenberg dam, the water source of Dresden, was renovated complex since 2006. In 2012 the refilling was carried out as test impoundment. There are long-term measurement series of structural monitoring available and it was required to define expectancy ranges and limits prior the refilling. Uplift pressure limits were exceeded during the refilling. The dam crest has significantly moved in the upstream-direction during the rehabilitation. The results of the analysis of monitoring data are presented and interpreted for three phases of operation furthermore the experiences of monitoring during refilling are summarized in the this paper.
Sieber H.-U.,Landestalsperrenverwaltung des Freistaates Sachsen |
Socher M.,Sachsisches Staatsministerium fur Umwelt und Landwirtschaft
WasserWirtschaft | Year: 2010
Dams and reservoirs are very Important for water management in Saxony/Germany. They fulfil multifunctional purposes in the most cases. Their safety must be in accordance with the rules of technique every time. Their operation is subjected to a continuous process of changing natural and socioeconomic conditions and circumstances. The measures for adapting the dams to these developing requirements realised during the last twenty years in Saxony will be presented.