Sinorock rock anchor soil nail are good for tunneling

16/lug/2016 10:30:03 sinorocksoilnailing Contatta l'autore

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The origins of soil nail wall can be traced to a support system for underground excavations in rock referred to as the New Austrian 

Tunneling Method. This tunneling method consists of the installation of passive steel reinforcement in the rock followed by the application of reinforced shotcrete.

This concept of combining passive steel reinforcement and shotcrete has also been applied to the stabilization of rock slopes since the early 1960s. This ground-support technique relies on the mobilization of the tensile strength of the steel reinforcement at relatively small deformations in the surrounding ground. This support is enhanced by the continuity of the shotcrete. The combination of passive reinforcement and shotcrete when applied to soil, in lieu of rock, is termed soil nailing.

One of the first applications of soil nailing was in 1972 for a railroad widening project near Versailles, France, where an high cut-slope in sand was stabilized using soil nails. Because the method was cost-effective and the construction faster.

The Sinorock Soil Nail Retention Wall System reinforces the earth to construct gravity walls.

In this “soil nail" application, a Sinorock rock anchor soil nail acts in a bearing mode compared to grouted anchor, which relies on friction. This gives the Soil Nail Retention Wall System economic advantages. Bearing plates are spaced along the entire length of soil nail  anchors. They are ready for immediate loading as soon as installed.

Backhoes and skid-steer loaders can quickly rotate soil nail anchors into place. Anchor size and grid spacing are designed to local soil conditions and load requirements. A reinforced-shotcrete veneer often is applied to the wall face.

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