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Estimation of precompression stress in an Ultisol cultivated with sugarcane [PDF]

Revista Brasileira de Engenharia Agrícola e Ambiental, 2019
Compressive soil properties are typically used for the understanding of compaction process. As an alternative to laboratory tests, pedo-transfer functions have been used to estimate the mechanical behaviour of soil as a function of soil physical ...
Pericles M. B. Mendes, Mário M. Rolim, Renato P. de Lima, Elvira M. R. Pedrosa, Uilka E. Tavares, Djalma E. Simões Neto   +5 more
doaj   +5 more sources

Comparison of Methods for Determining Precompression Stress Based on Computational Simulation [PDF]

Revista Brasileira de Ciência do Solo, 2016
There are many methods for determining precompression stress (σp), whose value is affected by the slope of the soil compression curve. This study was designed to evaluate the hypothesis that for a certain compression curve all methods used to determine ...
Anderson Rodrigo da Silva, Renato Paiva de Lima   +1 more
doaj   +4 more sources

Mechanical Soil Database—Part I: Impact of Bulk Density and Organic Matter on Precompression Stress and Consequences for Saturated Hydraulic Conductivity [PDF]

Frontiers in Environmental Science, 2022
The mechanical strength of agricultural soils depends on many soil properties and functions. The database, “soil strength and consequences for sustainable land use and soil management SOILMECHDAT-Kiel”, originates from the “Horn Research Group” includes ...
Richard Schroeder, Heiner Fleige, Carsten Hoffmann, Hans Joerg Vogel, Rainer Horn   +4 more
doaj   +3 more sources

Precompression stress and compression index depend on the property used to represent the soil deformation in the compression curve [PDF]

Ciência Rural, 2016
: During linear deformation (h) in a soil sample, the variation of the void ratio with respect to deformation (dε/dh) and the respective variation of soil bulk density (dρ/dh) are identical only for a specific value of h. Consequently, if two compression
Paulo Ivonir Gubiani, Quirijn de Jong Van Lier, José Miguel Reichert, Rafael Ziani Goulart, Eracilda Fontanela   +4 more
doaj   +5 more sources

A Novel Method for Estimating Soil Precompression Stress from Uniaxial Confined Compression Tests

Soil Science Society of America Journal, 2017
Core Ideas A new numerical method could detect the point of maximum curvature in the stress–strain relationship.
Mathieu Lamandé, Per Schjønning, Rodrigo Labouriau   +2 more
openalex   +5 more sources

Functional evaluation of the various calculation methods for precompression stress

Soil Use and Management, 2019
Abstract Precompression stress ( σ p ) is commonly used as an indicator for the load carrying capacity of a soil and its stress history. Several calculation methods have been proposed to determine
Jan De Pue, Gemmina Di Emidio, Adam Bezuijen, Wim Cornelis   +3 more
openalex   +3 more sources

In search of a sound scientific basis for quantification of soil precompression stress [PDF]

Soil Science Society of America Journal
Abstract Soil compaction is a serious threat to soil functions and ecosystem services. Persistent soil deformation takes place when mechanical stress exceeds soil strength. Risk assessment models typically assume soil to be elastic to a precompression stress level and plastic above this threshold.
Per Schjønning, Mathieu Lamandé
openalex   +3 more sources

Relationship of precompression stress with elasticity and plasticity indexes from uniaxial cyclic loading test

Soil and Tillage Research, 2018
Abstract The precompression stress (σ p ) has been considered as the soil load bearing capacity, because σ p theoretically separates predominantly elastic (loads lower than σ p ) from predominantly plastic (loads greater than σ p ) deformations.
Paulo Ivonir Gubiani, Patrícia Pértile, José Miguel Reichert   +2 more
openalex   +2 more sources

Damage evolution and constitutive model of limestone with horizontal fissure under the coupled effects of dry-wet cycling and precompression stress

International Journal of Mining Science and Technology
To reveal the influence of coupled effects of dry-wet cycling and precompression stress (CEDWCPS) on the damage evolution of limestone with horizontal fissure (LHF), a series of degradation and uniaxial compression tests were conducted, and a ...
Shunbo Zhang, Zhongping Yang, Yang Gao, Miao Liu, Shanmeng Hou   +4 more
doaj   +2 more sources

Spatial variability of precompression stress and volumetric water content of a red-yellow latosol (Oxisol)

Bioscience Journal, 2019
The intensive agricultural machinery traffic to which soils under coffee crops are exposed may cause significant changes in soil structure. The goals of this study were to: a) characterize the spatial variability of precompression stress (σp) and volumetric water content (θ) of a Red-Yellow Latosol (Oxisol) and determine their spatially dependent ...
Karina Marie Kamimura, Moacir de Souza Júnior, Marcelo Silva de Oliveira, Gérson Rodrigues dos Santos, Paulo Tácito Gontíjo Guimarães, Ayodele Ebenezer Ajayi   +5 more
openalex   +6 more sources