katia bicalho

Universidade Federal do Espirito Santo, Engenharia Civil, Faculty Member

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Papers by katia bicalho

Improvement of Loose Sand with Clayey Bands by Sand Columns

by Uberescilas Polido and katia bicalho

Deep Foundations 2002, 2002

ABSTRACT

Laboratory Behaviour of Rio de Janeiro Soft Clays. Part 1: Index and Compression Properties

Soils and Rocks

This paper describes the Index and compression properties of Rio de Janeiro sedimentary clays pro... more This paper describes the Index and compression properties of Rio de Janeiro sedimentary clays properties and behaviour of ten deposits of soft to medium clays, situated in industrialized and residential areas of Rio de Janeiro City and Rio de Janeiro State. The data reported in this paper is a summary of the geotechnical properties obtained from laboratory and in situ tests carried out under well-defined contour and drainage conditions. The deposits are described in terms of its index properties, stress history, compressibility, consolidation and strength properties.

Numerical modelling Study of the influence of climatic effects on the soil temperature and suction changes

CRC Press eBooks, Jan 17, 2013

Settlement predictions of footings on sands using probabilistic analysis

Journal of rock mechanics and geotechnical engineering, Apr 1, 2016

The design of footings on sands is often controlled by settlement rather than bearing capacity. T... more The design of footings on sands is often controlled by settlement rather than bearing capacity. Therefore, settlement predictions are essential in the design of shallow foundations. However, predicted settlements of footings are highly dependent on the chosen elastic modulus and the used method. This paper presents the use of probabilistic analysis to evaluate the variability of predicted settlements of footings on sands, focusing on the load curve (predicted settlements) characterization. Three methodologies, the firstand second-order second-moment (FOSM and SOSM), and Monte Carlo simulation (MCS), for calculating the mean and variance of the estimated settlements through Schmertmann (1970)'s equation, are presented and discussed. The soil beneath the footing is treated as an uncorrelated layered material, so the total settlement and variance are found by adding up the increments of the layers. The deformability modulus (E Si) is considered as the only independent random variable. As an example of application, a hypothetical case of a typical subsoil in the state of Espirito Santo, southeast of Brazil, is evaluated. The results indicate that there is a significant similarity between the SOSM and MCS methods, while the FOSM method underestimates the results due to the non-consideration of the high-order terms in Taylor's series. The contribution of the knowledge of the uncertainties in settlement prediction can provide a safer design.

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Comparative study of data from geotechnical field penetration tests on sandy subsoils

Proceedings of the Institution of Civil Engineers, May 3, 2022

The main objective of the work reported in this paper was to compare standard penetration test (S... more The main objective of the work reported in this paper was to compare standard penetration test (SPT), dynamic probing (DP) and cone penetration test (CPT) data for uniformly graded sandy soils located in the southeast Brazilian coastal region of Grande Vitória, Espírito Santo (GV-ES). Previously reported datasets of laboratory and field penetration test data concerning the variations of some soil parameters associated with the investigated correlations were also evaluated. The correlations analysis addressed the influences of textural characteristics, especially grain size distribution, and relative density on the obtained CPT–SPT and DP–SPT linear correlations using a newly compiled experimental database for GV-ES sands and the previously published datasets. Correlations were determined using statistical inference, specifically by simple linear regression and analysis of residues for several groups of experimental data.

Comparison of the Casagrande and Fall Cone Methods for Liquid Limit Determinations in Different Clay Soils

Revista Brasileira De Ciencia Do Solo, 2019

How to cite: Crevelin LG, Bicalho KV. Comparison of the Casagrande and Fall Cone methods for liqu... more

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Estudo de correlações entre sondagens SPT e resultados de ensaios de penetração contínua PD e CPT para diferentes subsolos arenosos

Universidade Federal do Espírito Santo, Aug 1, 2018

A Deus que me carregou quando não tive forças e por colocar em meu caminho pessoas que me ajudam,... more A Deus que me carregou quando não tive forças e por colocar em meu caminho pessoas que me ajudam, inspiram e encorajam a ser cada dia melhor. À professora Katia Vanessa Bicalho pela orientação, amizade, paciência e por compreender a vida corrida de uma mestranda-professora que trabalha a 361 km de Vitória e que por vezes se enrolou entre prazos de artigo e planejamento de aulas. À Banca Examinadora que prontamente aceitou o convite de fazer parte deste trabalho. Cada um de alguma forma (que talvez nem saibam) marcou minha vida com ensinamentos, apostilas, extensas conversas sobre a vida ou palavras de calma antes da apresentação do meu artigo no congresso. Ao professor Adelmo Inácio Bertolde que sempre me recebeu em sua sala e sanou minhas dúvidas de estatística com muito humor e disposição. À equipe e alunos da Faculdade do Sul da Bahia que me acolheram calorosamente e confiam no meu trabalho. Principalmente à Dayanne e Simone que compartilham da exaustiva saga de morar e trabalhar em cidades diferentes, e se tornaram muito mais que colegas de trabalho. Ao Rodrigo, sinônimo de paciência, compreensão, companheirismo e amor. Obrigada por incentivar meus sonhos e me ajudar a torna-los possíveis. Aos meus amigos que compreendem a falta de tempo e a ausência nos encontros. Em especial à Helena e Fernanda que entendem essa fase de mestrado, me escutam, me fazem rir e não me deixaram desanimar em nenhum momento dessa jornada. Aos meus irmãos, primos, tios e à minha avó, que sempre me apoiam e os quais tomo como modelo de ética e princípios. Em especial agradecimento ao meu pai, primeiro pesquisador que conheci na vida, que sempre me incentivou a estudar e nunca me deixou esquecer que ser negro é ter que sempre dar o melhor de si. E à minha mãe, por demonstrar que mulher pode ser o que ela quiser, e que mesmo que a batalha seja densa, pode ser feita com muito amor.

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Improvement of Loose Sand with Clayey Bands by Sand Columns

by Reno Castello and katia bicalho

Deep Foundations 2002, 2002

This paper analyzes the application of a technique for improvement of loose sandy soils supportin... more This paper analyzes the application of a technique for improvement of loose sandy soils supporting heavily loaded structures using shallow foundation. The technique used was deep compaction through sand columns driven with Frankitype equipment, and shallow compaction by vibratory plate. Results of the compaction processes are presented and discussed to provide guidance for future projects. The discussion includes distance from the sand column, initial relative density, time delay for results verification after compaction, and depth. The analyses demonstrate the method efficiency.

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Influência da distribuição granulométrica nos parâmetros da equação de van Genuchten

Evaluation of the Soil-Water Retention Curves of Different Unsaturated Silt-Sand Soil Mixtures

A Better Understanding of the Soil-Atmosphere Interaction in an Embankment Through Long-Term Monitoring

HAL (Le Centre pour la Communication Scientifique Directe), Jun 13, 2018

-Le projet TerDOUEST a permis la réalisation d'un remblai expérimental réalisé en limon et argile... more -Le projet TerDOUEST a permis la réalisation d'un remblai expérimental réalisé en limon et argiles traitées à la chaux et/ou aux liants hydrauliques. Cet ouvrage a été largement instrumenté par des sondes TDR et de succion. L'exploitation de 4 années d'enregistrement des teneurs en eau volumiques et des succions est présentée dans cet article. La présentation d'une courbe de rétention d'eau avec les données du site ouvre la discussion sur les phénomènes ayant réellement lieu dans le matériau traité et l'ouvrage. ABSTRACT-The TerDOUEST project constructed a large-scale experimental embankment with compacted lime treated clays. The field instrumentation included spatial and temporal changes of the soil suction and water content at predefined locations within the embankment, as well as measurements of rainfall data, collected during 4 years. Field soil water retention curves of the lime treated clay were reconstructed through simultaneous field measurements of soil suction and water content. The results illustrated the importance of field measurements in optimizing the design of earthen landfill covers and in controlling their long-term performance.

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Artificial neural networks in the analysis of compressibility of marine clays of Grande Vitória, ES, Brazil

Study of suction-water content calibrations for the Whatman No. 42 filter paper

The filter paper method (FPM) is probably the simplest of the methods available for estimating th... more The filter paper method (FPM) is probably the simplest of the methods available for estimating the soil suction (s). The FPM can be used over a wide suction range (30 kPa < s < 30000 kPa). The FPM calculates soil suction indirectly by measuring the gravimetric water content (w) of the filter paper at equilibrium that is related to soil suction through a predetermined s-w calibration curve. A number of s-w calibration functions for the Whatman No. 42 filter paper have been published in the literature. This paper presents and discusses graphical and statistical comparisons of several calibrations (bilinear and single equations) proposed at the literature for the Whatman No. 42 filter paper for different levels of suction. The results show that the variations observed in the evaluated calibrations are smaller than the expected variability observed in the established techniques for measuring or controlling soil suction for 30 kPa < s < 10000 kPa.info:eu-repo/semantics/publishedVersio

Avaliação de curvas de calibração do método do papel filtro tipo Whatman nº42 utilizadas para estimar sucção matricial em solos não saturados

Field monitoring of an experimental embankment constructed with two treated fine-grained soils

CRC Press eBooks, Sep 23, 2020

Use of fall cones to determine Atterberg limits: a review

Geotechnique, Jul 1, 2020

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Simulation des variations de la teneur en eau et de la temperature dues aux interactions sol-atmosphere

Une serie d'analyses numeriques a ete effectuee pour etudier la sensibilite des variations de... more Une serie d'analyses numeriques a ete effectuee pour etudier la sensibilite des variations de la teneur en eau, de la pression d'eau et de la temperature aux profils de temperature initiale (PTI). Le modele sol-atmosphere est utilise pour calculer le taux d'evaporation et du flux de chaleur en surface du sol ; les equations de transfert d'eau (liquide - loi de Darcy et valeur - loi de Fick) couplees a l'equation du flux de chaleur (de Vries, 1987) sont resolues pour determiner les profils de temperature, de la teneur en eau ou de la pression d'eau. Les resultats montrent qu'il est important de connaitre le bilan d'eau dans l'atmosphere pour determiner differents profils dans le sol. Les resultats suggerent egalement que le PTI peut influer sur les profils de temperature mais son influence sur la pression d'eau et sur la teneur en eau volumique est faible. (Titre en anglais : Simulations of water content and temperature changes due to groung-atmospheric interactions). (A). (Voir fiche generale F101403 et fiches specifiques F101404 a F101415).

Aplicação de métodos quantitativos de mapeamento de deslizamento de terra nas encostas de Vitória, ES

Estudo Comparativo da Evaporação de Solos não Saturados Através de Métodos Empíricos em duas regiões da frança

Estudo das características de compressibilidade unidimensional e plasticidade de misturas de argila e areia

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