نتایج جستجو برای: clayey soil

تعداد نتایج: 181371  

Journal: :International Journal for Research in Applied Science and Engineering Technology 2019

Journal: :Journal of ICT, design, engineering and techological science 2022

The leakage of oil products which results in making the soil pollute or impure and alter its physical mechanical properties due to presence hydrocarbons it. Those cannot be passed into through pores become congest on top land. Hence it is necessary indicate know geotechnical contaminated soil. Recently modern technique an encompassing laboratorial system intends encourage improve high level det...

Journal: :تحقیقات مهندسی کشاورزی 0
نادر عباسی عضو هیأت علمی موسسه تحقیقات فنی و مهندسی کشاورزی مهدی اویسی ها فارغ التحصیل کارشناسی ارشد رشته خاک و پی محمد موحدان پژوهشگر موسسه تحقیقات فنی و مهندسی کشاورزی

the engineering properties of soils are generally affected by parameters such as mineral type, structure, and pore water salinity. the existing solutes of soil play a role in the electrochemical forces between particles and can change the index and mechanical properties of soil, including cohesion, compressibility, and compactibility. this study investigated the effect of sodium chloride, sodiu...

2012
Greg J. Retallack

Three main features of paleosols are useful for distinguishing them from enclosing rocks: root traces, soil horizons, and soil structures. Fossil root traces are best preserved in formerly waterlogged paleosols. In oxidized paleosols their organic matter may not be preserved, but root traces can be recognized by their irregular, tubular shape, and by their downward tapering and branching. Often...

2010
Jinlong Zhou Guomin Li Feng Liu Yiping Wang Xiaojing Guo

According to the characteristics of groundwater in arid area, this paper proposes DRAV model for groundwater vulnerability assessment, where D is groundwater depth, R is the net recharge of aquifer, A is the aquifer characteristics, and V is the lithology of vadose zone. As a case study, the paper assesses the vulnerability of pore phreatic water in Tarim Basin of Xinjiang, China by using the D...

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