Gravity walls with anchors passive stabilizing bar to rock slopes in local roads

Miguel Angel Garcia Franesqui
Ingeniero de Caminos, Canales y Puertos
Professor, Department of Civil Engineering
University of Las Palmas

ABSTRACT
a solution for stabilizing vertical slopes and sustaining the expansion of a platform strongly fractured in actions to improve layout of a section of the GC-503 road on the island of Gran Canaria rock masses is presented, using a solution simple implementation and high environmental integration. In the difficult terrain, the road runs along a dividing narrow deep ravines whose width is reduced by a few points to almost the current platform of the road. The basic solution has been executing gravity walls of unreinforced concrete with facing a side view masonry used as permanent formwork base and reduced foundation adapted to the shape of the slope using passive anchors systematic adherents injected with cement grout, at the base of the masonry. It is also planned to stabilize the vertical rocky slope beneath the walls and the adjacent slopes.

KEYWORDS
Rock anchors, passive anchors adherents injected, gravity anchored walls, stitched rock mass, expansion of platforms.

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