For example the working height may reduce or the density may need to increase.
Mine roof support.
Fundamentals of coal mine roof support by christopher mark ph d 1 and thomas m.
The can is a yieldable secondary roof support made from a confined core of cementitious composite encased in a cylindrical steel canister which resembles a can.
Rib control white and reflective tensar tx and bx mining grid products provide effective rib control for soft minerals while tensar ux3340 roof mats and minex rock mesh address the most demanding hard rock and tunneling applications.
Timber is the most commonly used material for support in a mine as it is cheap and easily available.
Our original version mk1 was developed for tabular ore bodies with mining widths of up to 6m in deep level gold mines.
Roof support reconfiguration throughout the life of a mine the operational parameters for the powered roof supports can change.
We design deliver and provide on site services and support for chemical roof support rock stabilization and ventilation sealing products to the mining and underground construction.
The can handles mine floor heaving and roof sag better than any other type of support available today.
We will continue to explore and transform chemical solutions into innovative new products.
Sal props are available in lengths upto 9 m.
Rock support is the term widely used to describe the procedures and materials used to improve the stability and maintain the load bearing capacity of rock near to the boundaries of an underground excavation.
The strength of the rock depends on geology and the loads are applied primarily by the in situ and mining induced stresses.
Strata worldwide was founded on its line of engineered secondary roof supports for underground coal mining.
Originally introduced in 1993 the strata propsetter support system remains one of strata s top selling support props through out the world.