نتایج جستجو برای: silty sand

تعداد نتایج: 29299  

Journal: :Applied sciences 2023

The ground in Saemangeum has a high water level and is mostly composed of silty soil sand, which makes it susceptible to liquefaction seepage effects. To investigate the seismic response geotextile tube-reinforced embankment shallow foundations laid on liquefiable soil, simple spring type shaking table apparatus was developed. variation acceleration shear stress-strain relationship were investi...

ژورنال: علوم آب و خاک 2015
واعظی, علی‌رضا, وطنی, امین,

Rill erosion is the detachment and transport of soil particles by concentrated flow of runoff. It is the most common form of water erosion in the hill slopes. Rill erodibility is the rate at which soil particle is detached and transported by shear force of the concentrated flow. The study was conducted to determine the rill erodibility in different soil textures in Zanjan province using a rainf...

ژورنال: علوم آب و خاک 2004
حمیدرضا فولادمند, , علیرضا سپاسخواه, , جانب‌اله نیازی, ,

To obtain soil-moisture characteristic curve experimentally is time-consuming and usually subject to considerable errors. So, many investigators have tried to predict soil-moisture characteristic curve by different models. One of these models predicts soil moisture characteristic curve based on soil particle size distribution and bulk density. In this model, soil particle size distribution curv...

حمیدرضا فولادمند, , علیرضا سپاسخواه, , جانب‌اله نیازی, ,

To obtain soil-moisture characteristic curve experimentally is time-consuming and usually subject to considerable errors. So, many investigators have tried to predict soil-moisture characteristic curve by different models. One of these models predicts soil moisture characteristic curve based on soil particle size distribution and bulk density. In this model, soil particle size distribution curv...

2016
L. W. Boyd L. R. Bartek B. P. Luyendyk D. Wilson B. Luyendyk

Contrasting sub-ice shelf, sub glacial and glacial marine deposition: Implications for ice shelf stability" (2007). Related Publications from ANDRILL Affiliates. Paper 10. Summary Data from cores collected from sites that were beneath the Ross Ice Shelf until 2000 and 2002 indicate that sub-ice shelf lithofacies are distinguishable from sub-glacial and glacial marine facies. Glacial marine sedi...

1997
Stephen F. Pekar Kenneth G. Miller Richard K. Olsson

We formally name the Sewell Point and Atlantic City Formations, two distinct Oligocene lithologic units identified in subsurface strata in New Jersey. These formations are stratotypified at the Ocean Drilling Program Leg 150X Atlantic City and Cape May boreholes. The lower to upper Oligocene Sewell Point Formation consists of glauconitic clays and silts and clayey glauconite sand. It can be dif...

2000
M. Dõ G. A. Grosso

The Mollisols from the Pampas Region of Argentina have been described as presenting different compactability behaviors under agricultural systems. The purpose of this study was to provide information on the inherent soil factors related to the susceptibility to compaction. Total organic carbon (TOC), texture (CLAY, SILT, SAND), water retention at 0.33 kPa (WR), Proctor maximum bulk density (BDM...

Journal: :International Journal of Geo-Engineering 2021

Abstract Suffusion is the phenomenon responsible for internal erosion, and process by which finer soil particles are moved through constrictions between larger seepage forces. Generally, gap-graded known to be susceptible suffusion. Meanwhile, suffusion of well-graded silty sand resulting behavior not well understood. Moreover, previous researches on laboratory tests focused study critical hydr...

Journal: :MATEC web of conferences 2021

-Soil compaction in cropping systems, caused by the external pressure of machinery, creates impermeable layers that restrict water and nutrient cycles reducing agricultural production. To evaluate matric suction effects on distribution with depth stresses a soil, use Jet Fill tensiometers were installed at two different depths (i.e. 0.15 m, 0.30 m) soil profile constituted silty sand gravel (SM...

Journal: : 2021

The coastal area of the Ma river delta is formed by interaction continental and marine processes, between neo-tectonic activities exogenous natural factors human during Late Holocene. Using remote sensing geoscience research methods (granulometry, paleontology, geochemistry, clay mineralogy) geomorphological studies (geneses, morphology, dynamics) combined with field survey, this area, except d...

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