Aterro estruturado com colunas de jet grouting e reforçado com geossintéticos construído sobre solo mole: caso de obra do encontro de ponte sobre o rio Curimataú, BR-101/RN
A structure foundation, whether a highway or a building, requires geotechnical conditions of stable soils, meaning that the planned investment is without risk. In case if that is non-existent, the geotechnical engineer should to do a needed analysis, in order to solve possible risks. The presence...
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| Formato: | Dissertação |
| Idioma: | por |
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| Endereço do item: | https://repositorio.ufrn.br/jspui/handle/123456789/25707 |
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| Resumo: | A structure foundation, whether a highway or a building, requires geotechnical
conditions of stable soils, meaning that the planned investment is without risk. In case
if that is non-existent, the geotechnical engineer should to do a needed analysis, in
order to solve possible risks. The presence of soft soil in any terrain, whether from
surface or even in sub horizontal layers, naturally makes necessary a stability
calculation, usually it involves computational analysis. This study contributes to a better
knowledge of the landfill technique over reinforced soft soils with jet grout column,
preceded for load transfer platform with geosynthetic, so as his evolutionary behavior
in consolidation transfer charge process resulting time. The study case place is
detailed and the made geotechnical investigation will be present. As the used
parameters are presented in landfill construction project over soft soil of the work
project of duplication of BR-101/RN highway, the called northeast corridor, his history
and geotechnical baseline. The methodology adopted shall be demonstrated to made
road structural reinforcement with jet grouting technique, being described how the
estimated parameters are used in modeling of system. The application of the proposed
methodology is presented using as geotechnical scenario the soil characteristics of the
Vale do Curimataú área. With this model utilization, it is intended to compare
numerically the displacement datas that was measured in field, this area has a failure
before this intervention study. Were observed a failure conditions and excessive
deformations and to stabilize it, was applied the jet grouting technique. The building
behavior was analyzed in post-construction period. To a successful performance of landfill over soft soil, it makes necessary a monitoring in all of the construction stages,
with installing control instruments to follow the soft layer and massif performance, the
movement soil evolution, the horizontal displacements, and prevent of some future
problems that could negatively affect the landfill stability |
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