نتایج جستجو برای: concrete dam foundation

تعداد نتایج: 178232  

2015
Feng Jin Yihong Zhou

Temperature control is a key factor which affects the construction quality of the mass concrete, which is also an important measure to prevent crack propagation. Lots of engineering practices show that most of temperature cracks come out in the form of the surface crack during the construction of the concrete dam. In addition, deep cracks and transverse cracks are usually developed by surface c...

Journal: :نشریه دانشکده فنی 0
آورل کزما علی یوسفی احمد قزل ایاغ

the testing equipment and the methods of field tests used for calculating the modulus of deformation and elasticity of the shah _ abass dam foundation rock are described here. the communication includes conclusions of which a sharp difference between the quality of the roc kin the right and in the left bank is the most important.

Journal: :journal of the structural engineering and geotechnics 0
seyed majdeddin mir mohammad hosseini prof. amirkabir univ. of technology, tehran- iran abdolhossein azadmaneshb b. sc. civil eng. mahab ghodss consulting eng. co., tehran- iran

in the construction process of a plastic concrete cut-off wall, concreting is usually performed using the termie pipe method. in this method, concreting is performed from the lowest point in the excavated trench (containing the slurry) using a funnel and the pipe connected to it. the concrete poured in the funnel gradually settles in the panel through the termie pipe which is beneath the slurry...

2014
Huai-shuai Shang Wei-qun Cao Bin Wang

Freezing-thawing resistance is a very significant characteristic for concrete in severe environment (such as cold region with the lowest temperature below 0°C). In this study, ordinary-air-entrained (O-A-E) concrete was produced in a laboratory environment; the compressive strength, cubic compressive strength of C50, C40, C30, C25, and C20 ordinary-air-entrained concrete, tensile strength, and ...

2004
O. Kobori Y. Taniguchi Y. Udagawa M. Hirano

There are about eighty thousand dangerous districts of landslides in Japan. We have constructed a great number of concrete earth holding dams for the purpose of disaster prevention. Most dams will be damaged over time by degradation, such as Alkali-aggregate reaction, salt, etc. Nondestructive dam inspection was done by the government. Many discussions have taken place to find the best solution...

Journal: :journal of structural engineering and geo-techniques 2015
seyed majdeddin mir mohammad hosseini abdolhossein azadmaneshb

in the construction process of a plastic concrete cut-off wall, concreting is usually performed using the termie pipe method. in this method, concreting is performed from the lowest point in the excavated trench (containing the slurry) using a funnel and the pipe connected to it. the concrete poured in the funnel gradually settles in the panel through the termie pipe which is beneath the slurry...

Journal: :Journal of The Korean Society of Agricultural Engineers 2004

Journal: :International Journal on Advanced Science, Engineering and Information Technology 2022

Dam foundations are generally affected by water leakage and seepage, posing a significant threat to the structure's safety. Such an artificial reservoir unconditionally assumes watertight foundation, as perfect possible, ensure its stability. This brings us back thinking about adequate treatment of foundation through injections grout curtain, which ensures watertightness ground good drainage sy...

2011
Theodor D. Popescu

Usually, dam monitoring systems are based on both boundary conditions (temperature, rainfall, water level, etc.) and structural responses (displacements, rotations, pore pressures, etc.). Statistical analysis tools are widely used to compare the current response of the dam with a whole set of recorded data, in order to determine eventual unwanted behaviors. The main drawback of this approach is...

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