Currently Line 4 of the São Paulo Metro comprises 9km long, with its expansion will add 3.8km. Th... more Currently Line 4 of the São Paulo Metro comprises 9km long, with its expansion will add 3.8km. The Phase 3 project of extension of this line comprises continuation of the line extending on 2.3km. In this excerpt will be included the Largo do Taboão Station, covering two excavated trench areas. These trenches will be excavated in basement rocks of the São Paulo Basin, being characteristic the resulting heterogeneity of gneissic banding, displaying a structural pattern of topographic highs and lows, ranging vertically and horizontally, implying a structural limitation on the behavior of the massive regarding the excavation and the contention. Near the station several boreholes were performed, some of which were televised and were interpreted using the methodology proposed by Oliveira[1] for the implementation and interpretation of data from optical televiewer. This article presents a summary of how these data were essential in geological-geotechnical characterization of the mass and its discontinuities, providing the basis for the station stability analysis. For this purpose it was used the kinematic analysis from Hoek and Bray[2] and key blocks theory from Goodman and Shi[3], comparing the obtained results with an analysis with the Software Swedge[4].
Currently Line 4 of the São Paulo Metro comprises 9km long, with its expansion will add 3.8km. Th... more Currently Line 4 of the São Paulo Metro comprises 9km long, with its expansion will add 3.8km. The Phase 3 project of extension of this line comprises continuation of the line extending on 2.3km. In this excerpt will be included the Largo do Taboão Station, covering two excavated trench areas. These trenches will be excavated in basement rocks of the São Paulo Basin, being characteristic the resulting heterogeneity of gneissic banding, displaying a structural pattern of topographic highs and lows, ranging vertically and horizontally, implying a structural limitation on the behavior of the massive regarding the excavation and the contention. Near the station several boreholes were performed, some of which were televised and were interpreted using the methodology proposed by Oliveira[1] for the implementation and interpretation of data from optical televiewer. This article presents a summary of how these data were essential in geological-geotechnical characterization of the mass and its discontinuities, providing the basis for the station stability analysis. For this purpose it was used the kinematic analysis from Hoek and Bray[2] and key blocks theory from Goodman and Shi[3], comparing the obtained results with an analysis with the Software Swedge[4].
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These trenches will be excavated in basement rocks of the São Paulo Basin, being characteristic the resulting heterogeneity of gneissic banding, displaying a structural pattern of topographic highs and lows, ranging vertically and horizontally, implying a structural limitation on the behavior of the massive regarding the excavation and the contention.
Near the station several boreholes were performed, some of which were televised and were interpreted using the methodology proposed by Oliveira[1] for the implementation and interpretation of data from optical televiewer.
This article presents a summary of how these data were essential in geological-geotechnical characterization of the mass and its discontinuities, providing the basis for the station stability analysis. For this purpose it was used the kinematic analysis from Hoek and Bray[2] and key blocks theory from Goodman and Shi[3], comparing the obtained results with an analysis with the Software Swedge[4].
These trenches will be excavated in basement rocks of the São Paulo Basin, being characteristic the resulting heterogeneity of gneissic banding, displaying a structural pattern of topographic highs and lows, ranging vertically and horizontally, implying a structural limitation on the behavior of the massive regarding the excavation and the contention.
Near the station several boreholes were performed, some of which were televised and were interpreted using the methodology proposed by Oliveira[1] for the implementation and interpretation of data from optical televiewer.
This article presents a summary of how these data were essential in geological-geotechnical characterization of the mass and its discontinuities, providing the basis for the station stability analysis. For this purpose it was used the kinematic analysis from Hoek and Bray[2] and key blocks theory from Goodman and Shi[3], comparing the obtained results with an analysis with the Software Swedge[4].