نتایج جستجو برای: karkheh embankment dam

تعداد نتایج: 14403  

2014
Young-Moon Kim Ki-Pyo You Jang-Youl You

Artificial structures such as embankments built during the construction of highways influence the surrounding airflow. Various types of damage can occur due to changes in the wind velocity and temperature around highway embankments. However, no study has accurately measured micrometeorological changes (wind velocity and temperature) due to embankments. This study conducted a wind tunnel test an...

Journal: :Nucleation and Atmospheric Aerosols 2023

In dam construction stages when an earth embankment has retained a reservoir with constant water surface elevation for long time, seepage conditions within the will be reach steady state. If it is necessary to drain quickly, pore-water pressures in may remain relatively high while stabling effect of reservoir's weight along upstream (U/S) side removed. This process referring as "Rapid Drawdown"...

Journal: :Canadian Geotechnical Journal 2023

Seasonal subsurface temperature monitoring, which exploits the fact that increased seepage flow may locally alter distribution, is a useful approach for leakage monitoring and evaluation within embankment dams their foundations. At Mactaquac Generating Station, New Brunswick, Canada, spatial temporal variations of have been monitored modelled at steeply inclined interface between compacted clay...

Journal: :Waste management 2006
Sungmin Yoon Monica Prezzi Nayyar Zia Siddiki Bumjoo Kim

Use of tire shreds in construction projects, such as highway embankments, is becoming an accepted way of beneficially recycling scrap tires. However, in the last decade there was a decline in the use of pure tire shreds as fill materials in embankment construction, as they are susceptible to fire hazards due to the development of exothermic reactions. Tire shred-sand mixtures, on the other hand...

Journal: :محیط شناسی 0
علی سلاجقه دانشکدة منابع طبیعی دانشگاه تهران، دانشیار گروه احیا مناطق خشک و کوهستانی سمانه رضوی زاده دانشکدة منابع طبیعی دانشگاه تهران، کارشناس ارشد آبخیزداری و عضو باشگاه پژوهشگران جوان نعمت الله خراسانی دانشکدة منابع طبیعی دانشگاه تهران، استاد گروه محیط زیست مینا حمیدی فر کارشناس ارشد محیط زیست سوسن سلاجقه دانشکدة منابع طبیعی دانشگاه تهران ، دانشجوی کارشناسی ارشد محیط زیست

in the case of iran with arid and semiarid climate and lack of freshwater, pay attention to water quality and its effective factors is necessary. karkheh watershed is more than 5 million hectares in area and with biggest soil dam in asia, which has widespread land use changes in last decades. the most important factors of water volume and water resources reduction are aridity and improper land ...

Journal: :Technobius 2022

For embankment slope stability, soil cohesivity is one of the most important shear strength parameters. The effect cohesiveness on stability a homogeneous dam under rapid drawdown loading conditions was examined in this study. With use numerical modeling GeoStudio, different situations were explored based (0 kN/m2, 5 10 and 15 kN/m2) 1 m per day rate. factor safety value obtained from long-term...

M. Asadolahi Pajouh R. Bahrami Seyed Majdedin Mir Mohammad Hosseini

The water supply is the crucial problem of human beings in the world. Earth dams are usually the most important structures to store and manage the main sources: surface waters. The safety of earth dams in different conditions especially under earthquake loadings plays a vital role in sustainable developments. Recently, mixed-clay soil is widely used as water- seal material in the core of earth ...

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