Static and Dynamic Analysis of Stress and Deformations of Răstoliţa Dam
Journal Title: Analele Universitatii "Dunarea de Jos" din Galati. Fascicula IX, Metalurgie si Stiinta Materialelor - Year 2016, Vol 39, Issue 4
Abstract
Large Dams are a particularly important case of seismic risk assessment. On the one hand, the dams themselves have a high value, having implications for the whole economy, through the production of electricity, water supply systems for irrigation and flood prevention etc. On the other hand, structural damage of a dam can lead to major disasters, the population exposure to effects caused by sudden floods. The situation in Romania is such that attention should be paid to the future safety of existing dams. The first reason is that these dams were designed and constructed on the basis of technical rules, which the majority are no longer in force; a second reason is the major climate changes in the last period, which have led to the accumulation of a large volume of water in increasingly large lakes. A third reason is, logically, the length of existing dams. In this paper is analysed the stress - deformation state that occurs in Răstoliţa dam body according to the type of rockfill; calculations were done for two cases, namely the completion of construction and, respectively, at the first filling of dam with water. The results show that after completion of construction, the maximum settlement is recorded in the central area of the dam, below the middle third; horizontal displacements of downstream prism are significantly higher compared to deformations of the upstream prism, in the area where the used material has a higher compressibility. Maximum principal normal stress registers some local distortions within acceptable limits; minimum principal normal stress presents important gradients in the contact zone downstream dam slope in the Ist stage with tuff-pyroclastic embankment layer and also in the first three layers of intercalated filling disposed near the slope. Stress increases due of hydrostatic pressure after the first filling does not lead to occurrence of stress concentrations in other zones than those reported at the completion of construction.
Authors and Affiliations
Mihaela TODERAŞ, Ciprian DANCIU
Keywords
Related Articles
- EP ID EP576965
- DOI -
- Views 98
- Downloads 0
Performance Management System for Purifying Polluted Industrial Water
In this paper we show an integrate system of water management and an efficient solution that is a floating dock, placed in the harbour area. Water quality is one of the most important elements for life support and contri...
Selective Growth of 1D Nanostructures Oxide Materials Using PDMS Stamp
The approach for selective growth of 1D nanostructured oxide materials using poly (dimethylsiloxane) (PDMS) stamp consists of using microcontact printing, as such the soft lithography technique, for transferring the patt...
Corrosion Behaviour of Aluminum Alloy 2024 - T3 in Acidic Environments
This research aimed at analysing the acidic corrosion behavior of aluminum alloy 2024-T3 commonly used in the aerospace. We study the variation of corrosion rate with immersion time at different values of H2SO4 concentra...
Scrap Quality and Metallurgical Effects Associated with Copper and Tin as Tramp Elements in the Casting Steels
The complex property requirements for steels make it essential that there is a thorough understanding of the influence of tramp elements on their properties. Surface aspects, metallurgical structure, mechanical propertie...
A Possibility to Decrease the Sintering Temperature of Corundum Ceramics
The ceramics consisting of more than 95%Al2O3 is called corundum ceramics. The name comes from the name of the α-crystalline form of the aluminum oxide - corundum. The basic technological process influencing the properti...