Results 71 to 80 of about 164 (124)

Alterações estruturais e mecânicas de solo de várzea cultivado com arroz irrigado por inundação Structural and mechanical changes in a lowland soil under flooded rice

Revista Brasileira de Ciência do Solo, 2013
A conversão de área natural para área de uso agrícola pode degradar a estrutura do solo, favorecendo a ocorrência de compactação. Este trabalho teve por objetivo avaliar as alterações nas propriedades físico-hídricas e mecânicas de um Gleissolo Háplico ...
Marcelo Ivan Mentges, José Miguel Reichert, Paulo Ivonir Gubiani, Dalvan José Reinert, Alencar Xavier   +4 more
doaj  

A remote sensing approach to estimate the load bearing capacity of soil

Information Processing in Agriculture
Preconsolidation pressure (σP) of soil can be considered as an indicator of the Load Bearing Capacity (LBC), which is the tolerated surface pressure before compaction, often caused by the traffic of agricultural machinery.
Italo Rômulo Mendes de Souza, Edson Eyji Sano, Renato Paiva de Lima, Anderson Rodrigo da Silva   +3 more
doaj   +1 more source

Numerical Implementation of Isotropic Consolidation of Clayey Soils

Acta Polytechnica, 2003
This paper reports on implementation of several numerical techniques to solve a set of governing equations resulting from simple one dimensional isotropic consolidation of soils that behave according to the Cam clay model.
T. Janda, M. Kuklík, M. Šejnoha
doaj  

Development of Pre-consolidation Pressure Dependence of Mixed Hardening Multisurface Hyperplasticity Model for Better Prediction of Earthquakes Ground Response Analysis

Jurnal Teknik Sipil, 2011
. It was known that soil behavior is dependent upon the history of loading and exhibits hardening behavior when deformed plastically. This paper presents a formulation of mixed hardening multisurface hyperplasticity model with stiffness factors of the ...
Dedi Apriadi, Halida Yunita, Suched Likitlersuang, Thirapong Pipatpongsa   +3 more
doaj  

Preconsolidation Pressure and Creep Settlements:estimations based on results of oedometer tests

, 1995
The paper describes results of geotechnical investigations carried out in order to estimate the state of consolidation in Holocene silt and clay sediments of unusual thickness. The clay and silt sediments are overlain by 30 meters of sand,  sedimented within the latest 1000 years.
openaire   +3 more sources

Rapid determination of the preconsolidation pressure and elastic moduli of a cohesive soil. [PDF]

, 2018
openaire   +1 more source

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Preconsolidation pressure of desiccated soils

International Journal of Geotechnical Engineering, 2008
Abstract During desiccation soils are subjected to very high shrinkage stresses, often of the order of 1000 kPa. However, studies on re-saturated desiccated soils do not always show evidence of these soils being subjected to very high stresses. This paper address this important issue and the reason can be attributed to the type of saturation, either by
Retnamony Robinson, Mehter Allam
exaly   +2 more sources

Experimental study of a pseudo-preconsolidation pressure in frozen soils

Cold Regions Science and Technology, 2010
Abstract Preconsolidation pressure ( p c ) is an important parameter in soil mechanics. For conventional unfrozen soils, p c is an index of the loading history and has a close relationship with the mechanical properties of soils. For frozen soils, special structures exist due to the interaction between ice and soil grains.
Jilin Qi
exaly   +2 more sources

soilphysics: An R package to determine soil preconsolidation pressure

Computers and Geosciences, 2015
Preconsolidation pressure is a parameter obtained from the soil compression curve and has been used as an indicator of load-bearing capacity of soil, as well as to characterize the impacts suffered by the use of machines. Despite its importance in soil physics, there is a few software or computational routines to support its determination.
Anderson Rodrigo da Silva
exaly   +2 more sources

Dissipated strain energy method for determining preconsolidation pressure

Canadian Geotechnical Journal, 2004
The dissipated strain energy method (DSEM), a new method for determining the preconsolidation pressure, is presented in this paper. Compared with the energy method, the DSEM uses dissipated strain energy and the slope of the unloading–reloading cycle (in the strain energy – effective consolidation stress space) for the plot to minimize the sample ...
L B Wang, J D Frost
exaly   +2 more sources