نتایج جستجو برای: concrete dam
تعداد نتایج: 88416 فیلتر نتایج به سال:
Abstract Seismic analysis of a fractured dam is generally complex problem. This paper presents an earthquake behavior investigation concrete gravity considering dam-reservoir--foundation rock interaction. The Koyna profile, located in India, adopted this study. nonlinear finite element analyses are conducted taking into account empty and full reservoir cases, to exhibit the hydrodynamic e ect w...
Abstract The simulation of Concrete Gravitational Dam burst floods is an important research content in the field disaster prevention and mitigation water conservancy projects. Due to extreme rainfall, earthquake, structure failure etc., concrete gravitational dam usually breaks a short time period. break flood will give risk downstream communities. Taking Kaliwa Philippines as example, based on...
The seepage and slope stability are very important and necessary in the dam dirt are, therefore, in this context, numerous applications to predict and calculate the rate of leakage has been prepared that than the experimental time and cost savings for the analysis of liquids before construction of earth dams need. In this study, safety factors for slope stability software Kaboodwal plaxis two-...
this study simulates the temperature field and temperature stress of concrete face slabs, considering the cold waves that occur during construction as well as the contact friction between the face slabs and the cushion layer. the results show that when a cold wave occurs during construction, the surface and center temperature of the face slabs continually drop with the outside air temperature, ...
In this article, an analytical model is presented for the simulation of the thermal behavior of dams that are subjected to the environmental thermal action during service. The method of solution adopted as well as the evaluation of the different parameters is described in detail. Also, the theoretical results that are predicted by the model are compared with experimental results obtained throug...
Plastic concrete consists of aggregates, cement, water and bentonite, mixed at a high water cement ratio, to produce a ductile material. It is used for creating an impermeable barrier (cut-off wall) for containment of contaminated sites or seepage control in highly permeable dam foundations. The effects of water to binder ratio and clay dosage on mechanical properties of plastic concrete were i...
In this paper, case study on outlet cracking is first conducted for the Goupitan and Xiaowan arch dams. A nonlinear FEM method is then implemented to study effects of the outlets on integral stability of the Xiluodu arch dam under two loading conditions, i.e., normal loading and overloading conditions. On the basis of the case study and the numerical modelling, the outlet cracking mechanism, ri...
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