25-08-2017, 09:32 PM
Soil Nailing
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Introduction
Soil nailing is a technique in which soil slopes, excavations or retaining walls are reinforced by the insertion of relatively slender elements - normally steel reinforcing bars.
Literature Review
"New Austrian Tunneling Method" (NATM), in which grouted rock bolts and shotcrete were used for supporting tunnels
The use of grouted "soil nails" and driven soil nails, which consist of solid steel bars and steel angle iron, continued to grow in the 1970's, in France, Germany and north America
The first wall built in France using current soil nail techniques was reported to have been built in Versailles
Soil uses
Soil nailing is used to reinforce
-tunnels wall support
-soil cut slopes
-retaining wall support
-excavations,
-disturbed terrain and
-natural hillsides stabilize
Conclusion
Soil nail construction has been shown to be a simple technology and does not need complex machines.
This method can provide a lower construction, period, and can provide good stabilize for slope failure.
Soil nailing has some advantages and some limitation. So, proper investigation and design should be taken.
soil nailing should be avoided in some cases