Soil Nailing
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The Soil Nailing method has been developed at BAUER Spezialtiefbau within the framework of a research project. The project was supported by the German Federal Ministry for Research and Technology. While natural soil as a rule is of adequate compressive strength it shows relatively low levels of tensile strength and shear strength. Soil nailing serves to improve the load-bearing behaviour of natural soil. The basic principle of soil nailing is to place reinforcement in bar form – so-called soil nails – into the natural soil in an effort to increase its tensile strength and shear strength. The original subsoil is therefore turned into a composite body which in terms of load-bearing behaviour is similar to a gravity wall capable of taking up external forces so that the soil is integrated into the structure as a structural component. In a number of actual applications, soil nailing proved to be the only economically viable solution. This refers to slope stabilization projects as well as to the preparation of excavation pits under extremely difficult conditions. |
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