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[http://www.sinorockbolt.com/[*Rock bolt*]] in tunneling and underground mining, steel rod inserted in a hole drilled into the roof or walls of a rock formation to provide support to the roof or sides of the cavity. Rock bolt reinforcement can be used in any excavation geometry, is simple and quick to apply, and is relatively inexpensive. The installation can be fully mechanized. The length of the bolts and their spacing can be varied, depending on the reinforcement requirements.
[http://www.mrxu.org/[*Rock bolts support*]] the face of a rock slope or cut. When securing the face of an excavation, rock bolts are used to support the unstable rock on the surface to the more stable rock behind the excavation. Roof bolts anchor the overhead portion of the tunnel excavation to the more stable rock above it. Anchor bolts serve to connect a structure to its foundation and can be used when securing wind turbines, tower structures, sign posts, stairways, and buildings.
Sinorock has long been recognized as a pioneer in the civil engineering and construction industries for developing alternative solutions for conventional structural applications. Our rock bolt can be easily and quickly driven with conventional construction tools, little soil disturbance and is considered a low impact solution.

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