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KAMY is the worldwide leader in manufacturing hydraulic cutters, road headers, tunnel support systems, and other specialized machinery used in the tunneling, mining, and construction industries. Through KAMY’s years of experience and innovative thinking, we can provide custom engineered solutions for nearly any project requiring rock excavation or concrete demolition.

KAMY is the leading manufacturer of roadheaders in the weight class of 13-80 tons weight. Our roadheaders offer interchangeable cutter heads, both transverse and axial and are custom engraved for each project. Our hydraulic cutters are suitable for material with uniaxial compressive strength ranging from 500 to 25,000 pounds per square inch. All of our products can be utilized in a variety of applications from rock excavation, trenching, demolition and concrete, to underwater cutting, tunneling, and scaling.

Rock bolt - Wikipedia

A rock bolt is a long anchor bolt, for stabilizing rock excavations, which may be used in tunnels or rock cuts. It transfers load from the unstable exterior to the confined (and much stronger) interior of the rock …

World's leading rock bolt manufacturer-Sinorock®

Rock bolt: 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

Rock bolt | mining | Britannica.com

Our Services Rock Bolts Unstable cliffs, and rock faces frequent the Northern Beaches. Falling rocks and boulders pose a real threat to both life and property. Retaining Wall Constructions are licenced and experienced contractors, able to assess rock faces and take suitable precautionary action to...

Rock bolts - Retaining Wall Constructions

Alibaba.com offers 10,308 rock bolt products. About 20% of these are anchors, 9% are other fiberglass products, and 8% are bolts. A wide variety of rock bolt options are available to you, such as anchor bolt, wall anchor, and concrete anchor.

Rock Bolt, Rock Bolt Suppliers and Manufacturers at ...

Rock Bolts: Stabilize your project with fully grouted SN Anchors or DYWIDAG Expansion Shell Anchors. Click here for technical details.

DYWIDAG Rock Bolts - DSI EMEA

THREADBAR ® Resin Anchored Rock Bolts. Resin bolts, bonded to rock or concrete by a fast curling polyester resin grout, are used extensively for slope stabilization, tie backs, tie downs, and for roof bolts.

System Description - DSI USA

Rock bolting systems are used to stabilize excavated rock mass in underground mines and tunnelling. Rock bolts are systematically arranged to transfer the load from the unstable surface or exterior of the rock, to the much stronger interior part of the rock. The rock mass can be reinforced by different types of rock bolts. Epiroc offers the ...

Ground support - Epiroc

The short rockbolts aim to build up a bolt-rock ‘shield’ surrounding the opening and the long cablebolts suspend the ‘shield’ to competent and stable rock formations behind the failure zone. It is required that the cablebolts must be able to tolerate a significant displacement in order that they function properly without premature failure.

Principles of rockbolting design - ScienceDirect

Williams Form Engineering Corporation has been providing threaded steel bars and accessories for rock anchors, soil anchors, high capacity concrete anchors, micro piles, tie rods, tie backs, self drilling anchors, post tensioning systems, and concrete forming hardware systems in the construction industry for over 80 years.

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