Load-bearing capacity and its relationships with the physical and mechanical attributes of cohesive soil

Lima, Renato Paiva de; Rolim, Mário M.; Oliveira, V. S.; Silva, Anderson Rodrigo; Pedrosa, Elvira M. R.; Ferreira, Rinaldo Luíz Caraciolo

doi:10.1016/j.jterra.2015.01.001

Cited by 17 publications

(4 citation statements)

References 23 publications

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“…One of the surprising aspects of the model was the positive effect of SOM on load bearing capacity. From literature, this relationship is mostly negative (Lima et al, 2015; Pereira et al, 2007). A possible explanation for this could be the nature of gravimetric moisture determination.…”

Section: Discussionmentioning

confidence: 99%

Higher density swards have a higher load bearing capacity

Janssen

Hoekstra

Eekeren

2023

Grass and Forage Science

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Increasing the water table is an important pathway to reduce greenhouse gas emissions from peaty soils. In order to continue utilizing grasslands on these soils, methods to increase load bearing capacity at a higher water table are sought. The objective of this study was to assess the effect of sward density on load bearing capacity, measured as both penetration resistance and the newly developed method measuring load bearing capacity through impact depth. Simultaneously, a new method to measure load bearing capacity through impact depth was developed. The study was conducted between 2018 and 2020 on 14 different farms in the western peat meadow district in the Netherlands, where the sward density measured with the point quadrat method ranged from 24% to 92%. Swards with a higher sward density showed a higher load bearing capacity than swards with a lower density. In a modelling approach an increase from 30% sward density to 90% sward density could result in a lengthening of the grazing season between three (11%) and six weeks (22%), depending on the soil moisture conditions. Load bearing capacity was also highly correlated with gravimetric soil moisture content as wetter conditions lowered load bearing capacity. In order to capture load bearing capacity more accurately a new measurement device was constructed which represents treading cattle. Both output (impact depth) and method (resembles cow hoof) are close to practice, which makes it a very suitable method allowing for easy interpretation by farmers.

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Section: Discussionmentioning

confidence: 99%

Higher density swards have a higher load bearing capacity

Janssen

Hoekstra

Eekeren

2023

Grass and Forage Science

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“…No Estado de Pernambuco a cultura tem limitantes na sua produtividade, pois as plantações encontramse em áreas onde predominam solos de tabuleiros e alguns com caraterísticas coesa, de endurecimento e limitações quando compactados com o trafego agrícola. (OECD/FAO, 2016;LIMA et al, 2015).…”

Section: Introductionunclassified

Infiltração de água em Ultisol com diferentes tempos de produção de cana-de-açúcar no semiárido brasileiro

Ortiz

Rolim

Silva

et al. 2020

AGROPECUÁRIA NO SEMIÁRIDO

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A cultura da cana-de-açúcar no Estado de Pernambuco, Brasil, apresenta algumas dificuldades de produtividade. Geralmente, as plantações estão em áreas com solos tabuleiros costeiros, que apresentam baixa disponibilidade de água para as plantas, e ainda, quando o preparo do solo é inadequado, restringe-se a infiltração, reduzindo, todavia, mais essa disponibilidade da água. Contudo, objetivou-se avaliar a infiltração de um Utisol/Argissolo com diferentes tempos de plantio de cana-de-açúcar, através de um simulador de chuva. O experimento foi conduzido em condições de campo, no município de Carpina, Brasil. Foram selecionadas três lotes de cana-de-açúcar, sendo classificadas como: primeira folha, terceira folha e quinta folha, e com tempos de plantio de 44, 40 e 15 anos, respectivamente. A infiltração foi avaliada pela taxa de infiltração, em uma área de 15 m2 e com três repetições. Os valores médios da infiltração do solo variaram entre 31 e 36,5 mm h-1, embora as áreas de primeira e terceira folha tiveram reduzida a infiltração em comparação com a quinta folha. A análise de cluster permitiu formar dois grupos pelas semelhanças nas respostas, destacando que a área de quinta folha foi diferente das outras áreas e com a maior capacidade de infiltração do solo.

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“…According to Lima et al (2015), the most important soil compressibility variable is precompression stress; its relationship with the soil water content enabled to achieve load-bearing capacity (LBC), which indicates the maximum pressure that a soil can withstand at a given water content with no increase in soil compaction (Taylor 1948;Dias Júnior and Pierce 1995;Souza et al 2012). A scenario in which contact pressure of wheelsets exceeds soil loadbearing capacity leads to a non-recoverable structural degradation (Silva et al 2009;Vischi Filho et al 2015); therefore, to define the load-bearing capacity of a given soil, management strategies should be defined to apply pressures below the preconsolidation pressure in order to avoid soil structural degradation (Souza et al 2012).…”

Section: Introductionmentioning

confidence: 99%

Soil Load-Bearing Capacity and Development of Root System in Area Under Sugarcane with Traffic Control in Brazil

et al. 2018

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Attempts to achieve reduced traffic area and favorable conditions for sugarcane field durability have been made increasingly necessary to use traffic control techniques in areas of sugarcane production. Our goal was to assess the benefits of traffic control for sugarcane cultivation areas by using a load-bearing capacity modeling and developing a root system. Our experiment was conducted in a sugarcane cultivation area in the region of Nova Europa, São Paulo, Brazil, by assessing the following treatments: T1 = sugarcane planted with row spacing of 1.50 m managed without autopilot; T2 = sugarcane planted with row spacing of 1.50 m managed with autopilot; T3 = sugarcane planted with row spacing of 1.5 9 0.90 m managed with autopilot. Soil sampling occurred at layers of 0.00-0.15 and 0.15-0.30 m in inter-row center and seedbed region. Our results reveal that the use of autopilot in the seedbed area is less influenced by machinery traffic, which guarantees preserved soil structure maintenance in the plant row region. Mathematical models of the inter-row center presented higher load-bearing capacity values than the seedbed region for all treatments, layers, and cycles assessed. Additionally, load-bearing capacity increases as the sugarcane cultivation cycles evolve, including higher soil load-bearing capacity at the first ratoon cane cycle in relation to the cane-plant cycle. Finally, the sugarcane crop root system has good distribution during the cane-plant cycle; however, the first ratoon cane cycle has a downward trend for the plant rows in the inter-row center because of intensive machine traffic.

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Load-bearing capacity and its relationships with the physical and mechanical attributes of cohesive soil

Cited by 17 publications

References 23 publications

Higher density swards have a higher load bearing capacity

Higher density swards have a higher load bearing capacity

Infiltração de água em Ultisol com diferentes tempos de produção de cana-de-açúcar no semiárido brasileiro

Soil Load-Bearing Capacity and Development of Root System in Area Under Sugarcane with Traffic Control in Brazil

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