Soil nails are long and thin metal components (can be rod or tube), placed in the ground, through full-length grouting and other ways to make it combined with the ground as a whole, serve to restrain ground deformation and strengthen slopes.
Self-drilling rock bolt is a one-time completion of the three processes of drilling, soil nail implantation and grouting, which obviously improves the construction efficiency, in addition to the ground disturbance is very small, but also can be applied to the prestressing, which is conducive to reducing the support displacement of the slope. During the construction, while drilling, grouting is injected from the middle hole of the hollow anchor bar, the slurry overflows from the drill bit and mixes into the hydromud soil slurry with the strata of the drilling rod, which combines the self-drilling anchor and the strata into a whole after the slurry is solidified, i.e., both the effect of soil and the effect of soil nails can be reflected.
The sequence of soil nail construction can include five main processes:
a) preliminary work;
b) excavation / face preparation;
c) nail installation;
d) drainage installation;
e) facing installation and connection with nail heads.
NOTE: The order of these processes depends on compliance with the design construction sequence and requirements and can vary.
The advantages of use self-drilling rock bolt as soil nails include the following aspects:
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Phone: +86-17539592302
Email: sinorock@sinorockco.com
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