Engineering behavior and classification of lateritic soils in relation to soil genesis

Tuncer, Erdil Riza

doi:10.31274/rtd-180813-397

Cited by 4 publications

(3 citation statements)

References 38 publications

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“…These difficulties of lifting and characterization are detached also by authors [23][24][25], and others, according to which the tropical grounds it has the reputation of there are "problematic soils" because of without being fitted in the classification systems usually used as they were developed for temperate climates; there is also the need to use adequate methods for them, since the destruction of the cement and its original structure compromises the analysis of its behavior.…”

Section: Characterization and Properties Of Lateritic Tropical Soilsmentioning

confidence: 99%

Tropical Soils: Considerations on Occurrence and Characteristics and Studies in Brazil

Aguiar¹

2022

New Approaches in Foundation Engineering

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Soil engineering is challenging as soils are found in different conditions of climate, topography and location and have properties that vary in depth and laterally. The tropical soils represent types of soils with similar characteristics and can be found in locations where tropical climate occurs. Inevitably, engineering projects must consider the particularities of these soils due to their genesis and the study of their properties, which requires investigations ranging from simpler methods to more complex field and laboratory tests, is essential to predict their behavior. In the case of lateritic soils, their differentiated characteristics impose additional challenges on designers since their classification does not fit perfectly into the classifications formulated for temperate climate soils. One limitation found in developing countries is that there are few or no geotechnical mappings and the knowledge of these soils are restricted at the central-south region of Brazil, where the major urban centres and the largest engineering companies and laboratories are located. Although studied by authors from all over the world, it is still possible to deepen the understanding of the properties of tropical soils and their application in the most diverse requests of civil engineering and others. This chapter was developed from bibliographic research.

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Section: Characterization and Properties Of Lateritic Tropical Soilsmentioning

confidence: 99%

Tropical Soils: Considerations on Occurrence and Characteristics and Studies in Brazil

Aguiar¹

2022

New Approaches in Foundation Engineering

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“…The lime and silica present in soil are precipitated out with the runoff from latosol zones and wetted hard rocks areas. Porous laterite stones are soft when in mines and become formed rich with iron and with patches of bauxites Das K et al 1995 [19] . The humus content is removed by bacteria's which can thrive in temperate zone.…”

Section: …………………………………………………………………………………………………… Introduction:-mentioning

confidence: 99%

Geo-Bio Chemistry of Wetlands in Laterite Mines, the Chilika Catchment, Odisha: Gis Study and Xrfspectroscopy Appraisal.

Das¹

2019

IJAR

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Int. J. Adv. Res. 7(3), 967-985 968 iron colour, due to high Fe 2 O 3 content and less clay.The laterite rocks is porous in mines are capping hill tops and adjacent plateau. The ferruginous rock covered by morrum (Soil form) extends underneath up to 12 to 15m by prolonged weathering covered by carboneous frustum and vegetation as overburden. The Laterites areas lies on the exposed surface of land and undergoes continuous deformation due to environmental changes. Laterites in Odisha cover 7000Km 2 of surface area which constitutes 4.5% of the total area of the state. As laterite rocks are good construction materials in those areas most of the areas are quarried and ditches are formed in quarry areas. The Water bodies are formed within these mines covering 20-30% of the quarry area and it is observed that the wet bodies are deprived of flora, fauna and especially aqua habitats. Economically the water bodies have least uses for the human uses and ecosystem. The water quality, physic chemical parameters are of concern in the ferruginous laterite zone. The natural building material are preferred in world as well graded admixture of both cohesive (clay and silt) and the cohesion less (gravel, chips and sand) and strong due to iron richness. Crops like cotton, rice, wheat, pulses, tea, coffee, rubber, coconut and cashews are cultivated in humus laterite soils though it is less yielding.Latosol stretches are found in Guatemala, Central Europe, Colombia, India, Burma, Precambrian shields of Brazil and Australia. The soil is acidic, low water retentivety and has less nitrogen and lime. They occur in parts of Tamil Nadu, Karnataka, Andhra Pradesh, Orissa and Jharkhand. Laterite soils in India:-The Laterite alternately called ferric rete is a left over ferruginous rock seen in tropics and subtropics has the mineralogical and chemical configuration of latosol/laterite governed by on their base rock manly bauxite. Laterite soil and red soils are not identical. The barren lands with red soils are formed by leaching process in tropical heavy rainfall areas. These soils are crystalline and red in colour due to little clay and more concentrations of iron, aluminum, manganese and nickel which is found in the hills of Deccan plateau, Karnataka, Kerala, Odisha, Assam and Meghalaya in India (Fig 1). But the less fertile, poorly crystalline laterite soils (morrum) are formed by weathering action of igneous and metamorphic rocks but dipper the extent richer the soil and more the fertility. The red colour of the soil is due to less clay content and higher gravel of red sand-stones https://brainly .in/ question / 1182741. Review of Literature:-Nomenclature, classification, morphological and analytical characteristics, global distribution, processes of horizon development, environmental conditions of laterites are analyzed by Alexander et. al., (1962) [2] , Maignien R., 1966 Fig 1: laterite locations map in India (Source: GSI map)

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“…Conversely, Tuncer (1976), Tuncer et al (1977), McBride et al (1987 and Kaspar (1988) have shown that volume change due to desiccation primarily affects the 0.1 to 10.0 micron diameter pores. This happens because the larger pores are subject to very low tensions which are not able to break down the large pore structure and the smaller pores possess greater structural stability (Tuncer et al, 1977).…”

Section: The Moisture Characteristic Curvementioning

confidence: 99%

Mechanics of unsaturated granular media

Levorson

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42 3.6 Conclusions 43 4. MOISTURE-PRESSURE RELATIONS IN SAND: EXPERIMENTAL RESULTS 44 4.1 Introduction 44 4.1.1 Background 44 4.2 The moisture characteristic curve 47 4.3 Measurement techniques 53 4.4 Experimental procedure 58 4.4.1 Sample preparation 58 4.4.2 Pressure measurement 58 iii 4.4.3 Density and moisture content measurements. . 59 4.4.4 Measurement precision and accuracy 61 4.5 Curve fitting technique and results 63 4.5.1 Analysis of the parameters a, n, and m. .. . 64 4.6 Experimental results and discussion 66

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Engineering behavior and classification of lateritic soils in relation to soil genesis

Cited by 4 publications

References 38 publications

Tropical Soils: Considerations on Occurrence and Characteristics and Studies in Brazil

Tropical Soils: Considerations on Occurrence and Characteristics and Studies in Brazil

Geo-Bio Chemistry of Wetlands in Laterite Mines, the Chilika Catchment, Odisha: Gis Study and Xrfspectroscopy Appraisal.

Mechanics of unsaturated granular media

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