Abstract This article assesses the behavior of full-scale static load tests (SLTs) conducted with instrumentation for strain measurements, in order to provide insights into pile transfer curves along its length. A collection instrumented SLTs from a specific region offers valuable dataset geotechnical community, which can be leveraged machine learning-based neural network studies and probabilistic-statistical analysis, ultimately enhancing reliability regional semi-empirical methods. study...

This paper presents a hybrid numerical tool for nonlinear piled rafts analysis. The pile behavior is represented by hyperbolic function, which intends to simulate the variation in stiffness during loading. As of piles restricted very thin zone next interface, only linear elastic effects are considered interaction factors between foundation elements. influence using Kirchhoff or Mindlin plate finite elements model raft discussed. code was compared other well tested tools, three tests on...

This paper presents a simple method to apply the Ménard Pressuremeter Test (PMT) results for calibration of soil stiffness due primary deviatoric loading used in Hardening Soil (HS) Model. A hyperbolic extension is rebuild PMT pressure-expansion curve at small-strain values. The was applied simulate series tests using axisymmetric finite element analysis (FEA) and compared with conventional HS model consolidated drained triaxial reasonable accordance. Finally, FEA two static load...

This paper aims to analyze and describe the geotechnical behavior of a piled raft foundation tall building (53 floors, 172.4 m high) through monitoring strains in building’s columns piles, stresses at raft–soil interface, settlements. Field laboratory tests were performed, associated with axisymmetric three-dimensional finite element analysis assessment measured data. The pile suggests occurrence soil expansion, caused by excavation process, up approximately 6 months after was completed....

This paper presents the results of numerical predictions for an instrumented piled raft foundation a tall building in tropical soil. The analysis was performed using 3D finite element and included comparison settlements, pile loads, skin friction mobilisation, raft-soil contact pressure. Initially, geotechnical model defined based on field laboratory test data to conduct Class A prediction. Subsequently, soil parameters used were re-evaluated match measured aiming C study discusses main...

The need for understanding the interaction between elements of a piled-raft foundation system becomes relevant when one piles collapses, presents defect related to installation procedure, or it is sought optimise number meet criteria load capacity and admissible settlement. In paper, 20 small-scale 1g tests were performed in model foundations placed within cylindrical container. Pluviated sand under vertical loading was adopted evaluate cross-correlated qualitative behaviour piled rafts with...

O presente trabalho tem como objetivo verificar a aplicação de métodos semi-empíricos para o cálculo capacidade carga estacas hélice contínua da fundação uma obra construção civil em Goiânia-GO, considerando abordagem probabilística. Para verificação proposta, foram utilizados os desenvolvidos por Aoki e Velloso (1975), Décourt Quaresma (1978) Antunes Cabral (1996), bem método probabilístico Monte Carlo (METROPOLIS; ULAM, 1949). A variabilidade do solo foi considerada através dos resultados...

O trabalho analisa a evolução de recalques do edifício Hyde Park Cavalry Barracks, em Londres, partindo simulações numéricas axissimétricas elementos finitos. A edificação apresenta uma fundação tipo radier estaqueado, construído sobre espessa camada argila, representada pelo modelo constitutivo Cam-Clay modificado. Dados da obra e parâmetros solo foram obtidos através dos trabalhos Hooper (1973) Gasparre (2005). sequência etapas construtivas foi considerada os previstos comparados com dados...

This study presents the evaluation of performance grain silos reinforced by rigid inclusions in soils Central-West region Brazil, during its construction and operation. Therefore, a group eight with 32.4 m diameter, 30 height, 12,000 t storage capacity (each silo) was numerically analyzed using three-dimensional Finite Element Method (FEM, Plaxis 3D). The stratigraphy Experimental Field University Brasilia, Brazil (CEGUnB) considered analysis. system to reinforce soil beneath raft compared...

This technical note presents the results of two static load tests performed in a root micropile installed tropical lateritic soil profile. The were executed 6 years apart order to investigate for signs ageing effects pile side shear resistance and settlement behaviour. Despite measurements indicated an increase capacity first layer, did not show clear effects, which occurrence was analysed considering different mechanisms. Soil suction possibly contributes differences between tests, should...

The design of foundations for buildings subjected to unload–reload cycles generate the need understand reloading effects in piles. Commonly, such are found unsaturated soils, which also requires considering matric suction. This paper investigates soil suction and on behaviour piles from an experimental numerical approach. A bored pile built a tropical profile was sequence load tests, performed at different climate seasons. An average 85% decrease measured test dry season rainy one,...

Abstract The present paper aims to investigate the effects of defective piles in horizontally loaded piled raft foundations. Close real scale foundation models and intact three-piled systems were submitted horizontal load tests. used bored type drilled with 5 m length 0.25 diameter, connected a concrete founded on tropical soil profile at University Campinas research site. Based experimental data, tridimensional finite element analysis was initially calibrated consequently study pile...

Abstract For an increasingly sustainable livestock, the use of quality pastures is essential. In this aspect, development new hybrids appears in order to optimize weight gain animals on pasture. Thus, objective was analyze Nelore females kept five Brachiaria identified as 152,153,154,155 and 156, using cultivar Marandu a control treatment. The experiment conducted at "Capim Branco" experimental farm Federal University Uberlândia, completely randomized design (CRD), from April 2017 March...