نتایج جستجو برای: coarse grain soil

تعداد نتایج: 265184  

Journal: :مهندسی عمران و محیط زیست امیرکبیر 0
نازنین سهرابی کارشناسی ارشد، بخش راه و ساختمان و محیط زیست، دانشگاه شیراز نادر هاتف استاد، بخش راه و ساختمان و محیط زیست، دانشگاه شیراز

the pull- out strength of the reinforcement has a significant role on the function of the most reinforced soil structures. since the coarse grain soils have a better interaction with the reinforcement, they are mostly used in these structures. in most situations, we have to transfer these granular soils from the borrow area, usually far from the site of the project. this will impose a considera...

ژورنال: علوم آب و خاک 2014
اختصاصی, محمدرضا, عظیم‌زاده, حمیدرضا, فتوحی, فرزانه,

Soil surface roughness (SSR) is one of the important factors in wind and water erosion studies and control. Several parameters such as surface rock fragments influence SSR. Main objectives of this paper are to study and compare (Allmarass) random roughness (RR) and tortuosity (Tb) indices in coarse, medium and fine grain plains of Yazd-Ardakan and investigate the relationship between indices an...

Journal: :Canadian Geotechnical Journal 2022

The interlayer soil identified in conventional French rail track corresponds to a mixture of fine and coarse grains. To investigate the role fines soil-water retention property such mixture, different grain contents f v dry densities ρ d–f were considered. filter paper method was applied measure matric suction. Mercury intrusion porosimetry tests performed observe microstructure soil. In terms ...

2013
Krishna Gudi

In developing country like India due to the remarkable development in road infrastructure, Soil stabilization has become the major issue in construction activity. Stabilization is an unavoidable for the purpose of highway and runway construction, stabilization denotes improvement in both strength and durability which are related to performance. Stabilization is a method of processing available ...

2008
F. Börner B. Weihnacht

Introduction Conclusions References Tables Figures ◭ ◮ ◭ ◮ Back Close Full Screen / Esc Papers published in Hydrology and Earth System Sciences Discussions are under open-access review for the journal Hydrology and Earth System Sciences Abstract Introduction Conclusions References Tables Figures ◭ ◮ ◭ ◮ Back Close Full Screen / Esc Abstract We studied the changes of geophysical parameters on a ...

Journal: :Sustainability 2023

Coarse-grained red sandstone soil is often used as embankment filling material but prone to being broken by extrusion, which lowers the stability of roadbed. This paper aimed clarify influence variation in coarse-grain content on mechanical properties coarse-grained soil. Soil with a grain size greater than 5 mm regarded soil, and soils different contents coarse grains were prepared cylindrical...

ژورنال: آبخیزداری ایران 2020
Haghani, Zahra, Vaezi, Ali Reza,

This study was conducted to investigate the effect of slope gradient and soil physical properties (grain size distribution, bulk density, aggregate stability and permeability) on water erosion in the furrows of rainfed farms under fallow conditions. The furrows with 6 m length were installed in five rainfed farms with 6.1, 10.6, 14.8, 20.7 and 27.1% slope steepness at three replications. Resul...

1996
David K. Lowenthal Vincent W. Freeh

A coarse-grain parallel program typically has one thread (task) per processor, whereas a ne-grain program has one thread for each independent unit of work. Although there are several advantages to ne-grain parallelism, conventional wisdom is that coarse-grain parallelism is more eecient. This paper illustrates the advantages of ne-grain parallelism and presents an eecient implementation for sha...

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