Make Underground Roof Support Systems

Jennmar is a market leader in the supply of underground products and systems.

Make underground roof support systems.

Published inunderground support systems. Tensar mining systems address underground mine and tunnel applications including. Deliver and provide on site services and support for chemical roof support rock stabilization and ventilation sealing products to the mining and underground construction. Strata worldwide was founded on its line of engineered secondary roof supports for underground coal mining.

For underground infrastructure building in typical urban areas poor ground conditions and for all underground construction in weak and disturbed soils modern tunneling engineers have developed a face stabilization and protection system called tube umbrella or forepoling. Also used for pillar wrapping tensar tx and bx mining grid complies with msha cfr 30 part 7 criteria for. An underground roof is a deflecting surface just below grade that slopes away from the building and directs all that roof water away from the foundation. For example the working height may reduce or the density may need to increase.

Your support for life. Workers drilled holes through opposing rock sections and installed threaded rod. Originally introduced in 1993 the strata propsetter support system remains one of strata s top selling support props through out the world. Special volume 35 1987 pages 1 6.

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. Throughout the life of a mine the operational parameters for the powered roof supports can change. A breakthrough occurred in the 1920s when miners used the first mechanical rockbolts in u s. Canadian institute of mining and metallurgy.

Mining roof and wall support. Any impervious sheet material heavy duty polyethylene rubber membrane rigid insulation at least 3 feet wide is placed along the foundation about 8 to 12 inches below grade and sloped at. Thin sheets of plastic rubber or artificial rubber specially designed for home protection will need to be applied to the walls and the roof to make an earth sheltered residence watertight since the earth can easily pass on moisture to anything with which it comes in contact.