Dimensioning of flexible surface stabilization systems made from high-tensile wire meshes in combination with nailing and anchoring in soil and rock

摘要

After a rockfall event of approximately 500m~3 in 2001 onto a National Road in Odernheim, Germany, as well as after a rock slide event of approximately 2,000m~3 in 2002 damaging a residential area on the Island of Helgoland, Germany, both slopes have been successfully stabilized with a flexible high-tensile steel wire mesh in combination with nailing. This widely used way to stabilize soil and rock slopes is economical and a good alternative to rigid concrete liner walls or massive supporting structures. Special concepts have been developed for dimensioning of flexible surface stabilization systems in steeper soil or heavily weathered loosened rock slopes, but also on jointed and layered rock in which the bodies liable to break out are determined by joint and layer planes. Stabilizations implemented in soil and rock slopes confirm that these measures are suitable for practical application.