Collapsible Soil
Mostrando 1-12 de 14 artigos, teses e dissertações.
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1. Comportamento de estacas escavadas de pequeno diâmetro em solo laterítico e colapsível da região de Campinas/SP / Behavior of bored piles of small diameter in collapsible and lateritic soil in the region of Campinas/SP
This paper aims to study the behavior of bored piles of small diameters, subjected to axial compression loads by static load tests carried out at the Field of Experimental Soil Mechanics and Foundation 2 at Unicamp. The CEMSF2 has a geological profile whose first layer is composed of silty clay, with coluvionar, lateritic, and collapsible features.This study
Publicado em: 2011
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2. Injected toe bored piles / Estacas escavadas com base injetada
Foram construídas bases injetadas próximas à superfície e estacas escavadas com base injetada no campo experimental de fundações do departamento de geotecnia da USP/São Carlos. As injeções de caldas de cimento portland foram realizadas como procedimento de melhoria do solo de apoio. Provas de carga estática em estruturas com e sem injeção determi
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 19/07/2010
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3. Behavior of concrete "mega" piles, installed in collapsible soil / Comportamento de estacas Mega de concreto, implantadas em solo colapsivel
There are very common cases of works that have problems due to the collapse of foundations and soil, and in the most of the works, the solution applied is the underpinning with Mega piles of concrete that, despite the wide use, there are few studies on this type of foundation. With the aim of add parameters to the technical means about this type of foundatio
Publicado em: 2009
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4. Curvas de retenção de agua de um solo coluvionar de Campinas obtidas mediante tecnicas de laboratorio e de campo / Soil water characteristic curve of a colluvial soil determined by techniques laboratory and field
This research focuses in to determine the relationship of moisture content (or degree of saturation) versus the value of the suction matrix, known as soil water characteristic curve (SWCC), to the soil surface layer of the Field Experimental of Soil Mechanics and Foundation of UNICAMP. This profile consists of colluvial, lateritic, porous, on condition unsat
Publicado em: 2008
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5. Análise do comportamento de estacas strauss submetidas a carregamento horizontal no solo da região de Londrina - PR
In Londrina city, Strauss piles are frequently used as retaining structure for building basement excavation, being submitted to horizontal load. However, the projects of such retaining structures are usually conducted using design methods that do not take the concrete cracking of pile transversal section and the properties of lateritic tropical soil into acc
Publicado em: 2008
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6. Modelação das deformações por colapso devidas à ascensão de lençol freático / Modeling of the collapse deformations due to rise of groundwater table
This thesis presents a case history of soil collapse that took place during and after reservoir filling of Três Irmãos dam in Brazil. The construction of this dam and subsequent reservoir filling has raised the local groundwater table up to 20 m, causing soil collapse that affected many buildings. Many field and laboratory tests were conducted to determine
Publicado em: 2007
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7. Estacas submetidas a esforços horizontais em solos colapsiveis do interior de São Paulo, nas condições natural, melhorada e inundada / Horizontally loaded piles in collapsible soils of the interior of the state of São Paulo, under the conditions of natural humidity, improved soil and pre-flooded soil
The problem with piles loaded horizontally at the top is frequently met in civil construction projects and there is a reduced bibliography on the parameters to be adopted in designoA more critical situation is that of horizontally loaded piles in high porosity, non saturated and collapsible soils. The objectives of this paper are: (1) produce subsidies for t
Publicado em: 2006
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8. Modelagem hidro-mecÃnica dos solos colapsÃveis de PetrolÃndia / Hydro-mechanical modeling of PetrolÃndia collapsible soil
This dissertation aims to reproduce the collapse behavior by hydration of a collapsible soil of PetrolÃndia municipality through a coupled hydro-mechanical modeling by finite element method. The experimental site was in an agricultural school which presented damages caused by collapse of the foundation soil. Souza Neto (2004) carried out a series of laborat
Publicado em: 2006
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9. Influences of structural aspects in soil collapse on the north of Paraná / Influências de aspectos estruturais no colapso de solos do norte do Paraná
Collapsible soils behavior, under the structural aspect, of three typical tropical soil profiles that occur in the region of North Paraná, considered representative in the national territory, are analysed at this thesis. Two of these profiles are classified by the pedology as Red Oxisoil, one of clayey texture and the other of medium texture. The third prof
Publicado em: 2005
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10. UtilizaÃÃo do pressiÃmetro MÃnard na identificaÃÃo e previsÃo de recalques em um solo colapsÃvel
This thesis presents a study involving pressuremeter tests (PMT) with main objective of evaluating variations in the behavior of a collapsible soil due to wetting, with application in design of shallow foundation. The studied area is the Agricultural School located in PetrolÃndia city, in a site with collapsible soils. The pressuremeter tests were performed
Publicado em: 2005
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11. Influência da dimensão e da sucção matricial no comportamento de fundações superficiais assentes em solo arenoso não-saturado / Size and matric influence in the behavior of shallow foundations in unsaturated sandy soils
The influence of matric suction and size of footings in the bearing capacity and settlement of shallow foundations in unsaturated sandy soils are analyzed. Fourteen plate load tests were performed in the first part of the research. Rigid metallic plates with diameters 0,20, 0,40, 0,80 m and one concrete circular footing with 1,50 m were used in the tests. Al
Publicado em: 2005
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12. Comportamento geomacÃnico de solos colapsÃveis e expansivos em Petrolina-PE: cartas de suscetibilidade
This paper presents susceptibility charters of occurring expansive and collapsible soils, as well as the outcomes from edometric assays of soils in the municipality of Petrolina-PE, this municipality, which is in a rolling economic expansion, lies in the interior place for mid SÃo Francisco; a region characterized by a semi-arid climate with rain taking pla
Publicado em: 2003