نتایج جستجو برای: earth dams

تعداد نتایج: 101458  

Journal: :Water 2022

The construction of a cut-off wall is common reinforcement method for earth rock dams. At present, compared with the in-depth study on homogeneous dams, more and attention being paid to stability deformation dams strengthened by concrete wall. In this study, aiming at Wujing project dam wall, influence water level rise fall slope, body, crack width crest were analyzed numerical calculation in s...

Journal: :IOP Conference Series: Earth and Environmental Science 2019

Journal: :Earth System Science Data 2022

Abstract. Data and knowledge of surface water bodies (SWB), including large lakes reservoirs (surface areas > 1 km2), are critical for the management sustainability resources. However, existing global or national dam datasets have georeferenced coordinate offsets many reservoirs, some not reported separately. In this study, we generated China's bodies, Large Dams, Reservoirs, Lakes (China-LD...

2014
DANA PROCHAZKOVA

Natural disasters threaten the humans from time immemorial. They are caused both by the processes in the Earth core and Earth surface, or in the atmosphere, and by the processes in the vicinity of the Planet. From the current knowledge it follows that in human system various phenomena take place in the development process that are the expression of its development or of the development of syste...

Journal: :caspian journal of mathematical sciences 2015
a. a. neamaty y. khalili

in this paper, we obtain a suitable mathematical model for the seismic response of dams. by using the shear beam model (sb model), we give a mathematical formulation that it is a partial differential equation and transform it to the sturm-liouville equation.

2004
Xiaodong Zhang Zhiping Liu Chuan Liang Qiang Fu

Many permanent spillway tunnels of high earth-rock dams are rebuilt from their diversion tunnels. Scour problem is focused because of their high water head and velocity. Energy Approach is a new method to Estimating Scour and is used here to estimate the depth of scour downstream of 1 spillway tunnel of Zipingpu Project. The method is illustrated working fine by comparing its results with data ...

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