Results 11 to 20 of about 240 (174)

COMPRESSIBLITY AND PENETRABILITY OF LATOSSOLO VERMELHO-AMARELO DISTRÓFICO (OXISOL) UNDER VARIED MANAGEMENT SYSTEMS AND LAND USES

Revista Brasileira de Ciência do Solo, 2015
Soil compaction is one of the main degradation causes, provoked by inappropriate agricultural practices that override the limitations of the soil physical properties.
Eudes Neiva Júnior, Wellington Willian Rocha, Bruno Silva Pires, Múcio Mágno de Melo Farnezi, Moacir de Souza Dias Junior, Danilo Fernandes Borges de Freitas, Enilson de Barros Silva, Gianniini Alexsandra de Oliveira Carvalho   +7 more
doaj   +1 more source

Método alternativo de avaliação da pressão de preconsolidação por meio de um penetrômetro Alternative method for the evaluation of the preconsolidation pressure through a penetrometer

Revista Brasileira de Ciência do Solo, 2004
A curva de compressão do solo tem sido freqüentemente utilizada em estudos de compactação do solo. Essa curva representa graficamente a relação entre o logaritmo da pressão aplicada e a densidade do solo ou o índice de vazios.
M. S. Dias Junior, A. R. Silva, S. Fonseca, F. P. Leite   +3 more
doaj   +1 more source

Estimativa da capacidade de suporte de carga do solo a partir da avaliação da resistência à penetração Evaluation of soil resistance to penetration underlying soil load support capacity estimate

Revista Brasileira de Ciência do Solo, 2006
A pressão de preconsolidação, apesar das dificuldades inerentes à sua obtenção, representa uma medida útil do estado mecânico do solo para o seu uso, manejo e planejamento de sistemas de mecanização.
Claudia Liane Rodrigues de Lima, Alvaro Pires da Silva, Silvia Imhoff, Tairone Paiva Leão   +3 more
doaj   +1 more source

Compactibility of cohesive soils from tablelands as influenced by cassava wastewater [PDF]

Ciência e Agrotecnologia, 2023
Consolidation tests give important insights into soil compactibility. However, it requires equipment that is not always available. The costal tablelands in Northeastern Brazil have extensive areas of cohesive soils where compaction is an expressive ...
Raissa Homem Gonçalves, Júlio César Azevedo Nóbrega, Davi Ney Santos, Reginaldo Barboza da Silva, Ayodele Ebenezer Ajayi, José Maria de Lima   +5 more
doaj   +1 more source

Assessment of the soil compaction of two ultisols caused by logging operations Avaliação da compactação do solo de dois argissolos causada pelas operações de colheita florestal

Revista Brasileira de Ciência do Solo, 2008
The impact of wood loads on bulk density and preconsolidation pressure and of harvester and forwarder traffic on rut depth, bulk density and preconsolidation pressure of two Ultisols were examined in this study.
Moacir de Souza Dias Junior, Sérgio Ricardo Silva, Nadívio Souza dos Santos, Cezar Francisco Araujo-Junior   +3 more
doaj   +1 more source

Carbon Fiber Reinforced Thermoplastics: From Materials to Manufacturing and Applications. [PDF]

Adv Mater
A contemporary and critical review on carbon fiber reinforced thermoplastics. The common thermoplastic and carbon fiber applied in the manufacture of carbon fiber reinforced thermoplastics are summarized, and the processing and postprocessing methods are reviewed, with emphasis on state‐of‐the‐art welding techniques.
Wang HH, Huo S, Chevali V, Hall W, Offringa A, Song P, Wang H.   +6 more
europepmc   +2 more sources

Structural changes in latosols of the cerrado region: II - soil compressive behavior and modeling of additional compaction

Revista Brasileira de Ciência do Solo, 2011
Currently in Brazil, as in other parts of the world, the concern is great with the increase of degraded agricultural soil, which is mostly related to the occurrence of soil compaction.
Eduardo da Costa Severiano, Geraldo César de Oliveira, Moacir de Souza Dias Júnior, Katia Aparecida de Pinho Costa, Vinícius de Melo Benites, Silvio Marcos Ferreira Filho   +5 more
doaj   +1 more source

Spatial patterns of preconsolidation pressure and soil moisture along transects in two directions under coffee

Revista Brasileira de Ciência do Solo, 2011
Information on the spatial structure of soil physical and structural properties is needed to evaluate the soil quality. The purpose of this study was to investigate the spatial behavior of preconsolidation pressure and soil moisture in six transects ...
Ivoney Gontijo, Moacir de Souza Dias Junior, Paulo Tácito Gontijo Guimarães, Marcelo Silva de Oliveira, Ayodele Ebenezer Ajayi   +4 more
doaj   +1 more source

Loading rate effect on mechanical properties of an unsaturated silty sand [PDF]

MATEC Web of Conferences, 2021
This paper presents the results of an experimental study on the effects of testing rate on stress-strain behavior and volumetric changes of soil. A series of suction-controlled triaxial tests has been performed on reconstituted specimens of a silty sand (
Barahona Christian, Sandi Luis, Rojas Juan Carlos, Gemmina Di Emidio, Bezuijen Adam, Cornellis Wim   +5 more
doaj   +1 more source

MODELING OF SOIL LOAD-BEARING CAPACITY AS A FUNCTION OF SOIL MECHANICAL RESISTANCE TO PENETRATION

Revista Brasileira de Ciência do Solo, 2015
Estimation of soil load-bearing capacity from mathematical models that relate preconsolidation pressure (σp) to mechanical resistance to penetration (PR) and gravimetric soil water content (U) is important for defining strategies to prevent compaction of
Cícero Ortigara, Moacir Tuzzin de Moraes, Henrique Debiasi, Vanderlei Rodrigues da Silva, Julio Cezar Franchini, Felipe Bonini da Luz   +5 more
doaj   +1 more source