Geovala: a new constructive technique for buried pipes / Geovala: um novo processo construtivo para dutos enterrados

AUTOR(ES)

Paulo Márcio Fernandes Viana

DATA DE PUBLICAÇÃO

2003

RESUMO

This thesis presents the development of an unpublished constructive technique for buried pipes entitled Geovala. This technique comprises of the installation of a geosynthetic over a trench, filled or not with soft material, located above the pipe with the main objective of reducing the loads on the structure. To evaluate the proposed technique small and large scale testing programs were carried out at the laboratory of geosynthetics of the School of Engineering at Sao Carlos EESC/USP. In this testing program it was possible to verify that the Geovala system can reduce drastically the loads on the walls of the pipe and in the surrounding soil. Besides, an analytical method was proposed to predict the vertical displacement, deformations and tensile stress on the geosynthetic, during the constructive process and surcharge. Finally, it was verified that the displacements of the geotextile predicted by the analytical method were similar to the displacements recorded in the experimental tests.

ASSUNTO(S)

duto geotêxtil vala load reduction solo reforçado pipe geotextile trench redução de esforços reinforced soil

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