PERMANENTLY STABILIZING A CREEPING SOIL SLOPE BY A FLEXIBLE SLOPE STABILIZATION SYSTEM
T. Hangartner 1 , D. Kurniawan 2 and C. Balg 3
ABSTRACT: The alignment of a new highway in the North of Greece required several massive cuts in soil slopes. Mainly due to creep movements within the superficial layer of a cut soil slope, the shotcrete facing reached its limitations and failed. The friction forces as a result of interaction between shotcrete facing and soil surface caused an overstressing of the stiff facing and finally its collapse. The shotcrete was removed and replaced by a flexible slope stabilization system consisting of a high-tensile steel wire mesh cover in combination with an adequate nailing. Flexible slope stabilization systems are widely used to stabilize soil and rock slopes. They are economical and a good alternative solution to stiff measures with shotcrete or massive structures with the possibility of revegetating stabilized slopes. Special concepts have been developed for the dimensioning of flexible slope stabilization systems considering superficial instabilities. Numerous implemented cases in soil as well as in rock with and without vegetated faces confirm that these measures are suitable for practical application.
Keywords: landslide, cut slope, flexible slope stabilization, highway
