نتایج جستجو برای: earth dam

تعداد نتایج: 105935  

M. AsadolahiPajouh Majdedin Mir Hosseini, R. Bahrami

The number of constructed dams has been largely increased due to high demands of water supplies, and earth dams are the most common types since they are more compatible to the environment. Nevertheless, the stability of these important structures during earthquakes has to be carefully evaluated and guaranteed. In the past, earth dams usually designed with pure clay core, but in recent decades t...

The optimal management of water resources needs to learn exact and up to date, of how the conditions governing the resources and the status of their future forecasts. one of the methods of management of water resources use methods of the multi criteria decision making. The purpose of this research to choose the best place for the purpose of the earth-fill dam found to develop sustainable water ...

The main goal of preset research is investigate the effects of vertical component of Near-Fault and Far-Field earthquake records on the probability of overtopping induced damage of earth dam due to the reduction of freeboard due to the settlement of dam crest. In this respect 12 different earthquake record are selected. Nonlinear dynamic analysis of earth dam is implemented with FLAC 3D using F...

Ali Ghanbari , Navid Hasani , S.Ali Asghar Hosseini,

There are varieties of techniques for calculating natural frequency of the structures. Nevertheless, these equations are less developed in the geotechnical structures such as slopes, buttress group, dams, and retaining walls. In earth dams, with respecting to the dimensions and weight of dam, soil-structure interaction is of prime importance for finding seismic parameters including natural freq...

Journal: :تحقیقات آب و خاک ایران 0
حجت احمدی استادیار گروه آب دانشگاه ارومیه حسین رضایی دانشیار گروه آب دانشگاه ارومیه کامران زینالزاده استادیار گروه آب دانشگاه ارومیه

seepage analysis through earth dams is employed to determine the water loss. moreover, as the magnitude of pore pressure in dam body is calculated using seepage analysis, this analysis plays an important role on the stability analysis in these types of structures. as the hydraulic conductivity of the earth dam materials, is considered as one of the effective parameters on the magnitude of seepa...

Journal: :civil engineering infrastructures journal 0
farzin salmasi water engineering department, faculty of agriculture, university of tabriz, tabriz, iran. behnam mansuri m.sc. student of hydraulic structures, university of tabriz, tabriz, iran amir raufi m.sc. student of hydraulic structures, university of azad ahar, ahar, iran.

relief wells are used extensively to relieve excess hydrostatic pressure in pervious foundation strata overlain by impervious top strata, conditions which often exist landward of levees and downstream of dams and hydraulic structures. placing well outlets in below-surface trenches or collector pipes helps dry up seepage areas downstream of levees and dams. relief wells are often used in combina...

B.Ebrahimian and M.Vafaeian,

In spite of the fact that the effect of earthquake on earth dams has been widely studied during the past decades, the complicated behavior of such earth structures against different seismological characteristics is still unknown. Such ambiguities necessitate more accurate studies using more comprehensive computation tools to achieve new results describing the behavior of such structures subject...

B.Ebrahimian and M.Vafaeian,

In spite of the fact that the effect of earthquake on earth dams has been widely studied during the past decades, the complicated behavior of such earth structures against different seismological characteristics is still unknown. Such ambiguities necessitate more accurate studies using more comprehensive computation tools to achieve new results describing the behavior of such structures subject...

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