Rock anchor soil nails are used for excavation support

10/mar/2016 08:56:05 sinorocksoilnailing Contatta l'autore

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Rock anchor soil nails are used commonly as part of retaining walls, and as part of a system to resist movement of a foundation. Most rock anchors consist of a pre drilled hole that is filled with grout material. A threaded steel anchor bar that is sheathed and is then inserted into the grouted hole and is tensioned to the appropriate specifications of the particular job. There are many sizes and weight capacities of rock anchors depending on whether they are for small house foundation type jobs or for retaining large structures such as bridges. Either way the use and installation are largely the same.

Rock anchor soil nails generally consist of steel (bars or strands) grouted in a drilled hole. A full-length hole is drilled through the soil and into the bond zone in soil or rock using casing if necessary. Thread bar or strand tendon is inserted into the hole and the hole is filled with high-strength grout. Any casing used is then extracted. The bars or strands are subsequently tensioned to the rock surface.


Anchors are often used to resist up-lift forces on foundations, for excavation support, or as a part of permanent retaining walls.  For more information regarding our rock ground anchors, or about how our other foundation repair services can help you, contact Sinorock today!

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