rock bolt system

Sinorock rock bolt system is a kind of fully threaded steel bar. rock bolt system can be drilled and grouted into loose or collapsing soils without a casing. The feature of the rock bolt system is that there is a hollow center in the middle of the bar. The hollow center is designed for simultaneous drilling and grouting and a rope thread for connection to standard drill tooling. rock bolt system is manufactured by cold rolling heavy wall steel tubing. Sinorock rock bolt system has a standard rope thread profile, which has all sizes include R thread from R25 to R51, T thread from T30 to T130. The rolling process refines the grain structure of the steel, increasing the yield strength and producing a durable drill rod suitable for a range of applications. Sinorock rock bolt system can be installed into a variety of different soils and ground conditions ranging from sand and gravel to inconsistent fill, boulders, rubble and weathered rock, as well as through footings and base slabs.

Here are the installation advantages of rock bolt system
1. rock bolt system is used with small drill rigs without casing in narrow spaces
2. It has the similar installation methods for all ground conditions, so it is convenient to use.
3. Simultaneous Drill and Grout Installation: anchor bolt system combines drilling and grouting into a single process. Thus, it improves the work efficiency greatly. 
4. No Casing Required: rock bolt system can be installed into loose or collapsing soils without the need for a temporary casing to support the borehole.
5. Rotary Percussive Drilling: Allows quick rates of installation, good directional stability and assists in the consolidation of the grout within the borehole.