نتایج جستجو برای: atterberg limits

تعداد نتایج: 121957  

ژورنال: علوم آب و خاک 2015
سلطانیان, سمانه , عابدی کوپایی, جهانگیر , قیصری, مهدی ,

Lack of knowledge on soil geotechnical properties can cause many problems in the construction and maintenance of irrigation and drainage networks. In general, all of unconventional soils such as gypsiferous soils can cause some problems to irrigation canals. Some studies have been conducted on a variety of problematic soils, but still there is a need for more research activities and field studi...

Journal: :Bulletin of the mineral research and exploration 2023

Atterberg limits are important index parameters used to classify soils for various engineering applications. Engineering properties of predicted through simple correlations with and thereby the behavior qualitatively assessed. There two popular methods determining liquid limit, plastic limit is commonly determined adopting rolling thread methods. To avoid operator related variations in by conve...

Journal: :Geoderma 2021

Atterberg limits are broadly used for engineering and geology purposes as well in agricultural environmental applications. Laboratory methods their determination are, however, laborious, destructive tool dependent. The aim of this study was to test the feasibility using visible near-infrared spectroscopy (vis–NIRS) a fast accurate alternative conventional measurements (LL PL) PI 229 geographica...

Journal: :Geotechnics 2021

Among the most commonly specified tests in geotechnical engineering industry, liquid limit and plastic are principally used for (i) deducing useful design parameter values from existing correlations with these consistency limits (ii) classifying fine-grained soils, typically employing Casagrande-style plasticity chart. This updated state-of-the-art review paper gives a comprehensive presentatio...

2004
Howard A. Perko Robert W. Thompson John D. Nelson

Determination of the suction compression index, Ch, is necessary for predicting expansive soil heave based on soil suction. The CLOD Test is a convenient laboratory procedure for determining Ch, however it is not widely used. Rather, engineers often rely upon empirical correlations to find Ch. A laboratory investigation was conducted to verify previously established empirical relationships. The...

Journal: :تحقیقات آب و خاک ایران 0
سمانه کارگر علی رئیسی حسن رحیمی

gypsum found in the soil beneath the foundation of structures, specially hydraulic structures, can cause serious damage to them. the mechanical behavior of gypsiferous soils has not so far been investigated in detail except for the works of petrukhin (1993). here, it has been tried to investigate the mechanical behavior and the effect of soil being leached on settlement and strength of these ki...

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