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Get economical and reliable solutions from the prime rock bolt and combination bolt supplier in Qatar!
Rock bolting is an economic, safe, and effective form of rock support. The reinforcing element (steel or GRP) is drilled and grouted in the ground. It can be either an active system with a predetermined level of stress or a passive system without any prestress. ForceTec is one of the leading rock bolt suppliers in Qatar and brings superior quality rock bolts for your construction needs.
Be it temporary support for tunnel roof, permanent support to stabilize slopes & embankments, or to fix rockfall barriers, rock bolts add strength to unstable rock masses and limit shear displacements. Rock Bolting is a method of fastening or strengthening closely jointed or highly fissured rocks in mines, tunnels, or rock abutments by inserting and firmly anchoring rock bolts. They are oriented perpendicular to the rock face or mine opening.
As short, low-capacity reinforcements, Rock Bolts increase the strength of unstable rock masses that show signs of instability or on newly cut rock slopes to prevent movement along with fractures and subsequent decrease of shearing resistance.
Various other types of Rock Bolts such as cable bolts, friction bolts (split bolt, expandable friction bolts), combination bolts, etc. are also available.
Combination Bolts
A combination bolt is an efficient and active rock reinforcement system that provides temporary rock support by immediate mechanical end anchorage using an expansion shell. It can be grouted later to improve corrosion protection provided by the polypropylene sleeve and steel surface coating. Once grouted, a combination bolt can be classified as a permanent support system. Steel surface coating consists of hot-dip galvanizing as per EN ISO 1461, zinc phosphating, and epoxy powder coating.
The combination bolt has a hemispherical dome at the anchorage through which the grout can be pumped. The grout flows through the polypropylene sleeve which then flows out at the end of the sleeve and fills the annular space between the sleeve and the surrounding rock. The buttons transfer the load from the rock to the bolt and act as a centralizer. Combination bolts are easy and fast to install & grout.
Coupled with excellent performance and reasonable pricing policy, ForceTec, the premier Rock Bolt and Combination Bolt supplier in Qatar, has considerably reduced bolt costs of their customer’s projects.
