Underground Applications: Mining Roof and Wall Support

Tensar® Mining Systems address underground mine and tunnel applications including:

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. Also used for pillar wrapping, Tensar TX and BX Mining Grid complies with MSHA CFR 30, Part 7 criteria for permanent applications.

Roof Control – Tensar TX Mining Grid and Tensar UX3340 Roof Mats provide up to the strength of 8-gauge welded wire panels (comparable to 4 in. x 4 in. gauge wire panels) with the benefits of a lightweight polymer product. With their greater surface area coverage, Tensar TX Mining Grid and Tensar Roof Mats dramatically reduce the occurrence of rock fall-through. Corrosion-resistant, they also meet MSHA CFR 30, Part 7 criteria. (In hard rock where CFR 30, Part 7 standards are not required, Minex Rock Mesh may be used.)

Longwall Screens – Flame-retardant Minex Rock Mesh has reduced longwall moves from weeks to days, saving mining operations hundreds of thousands of dollars. The mesh features weight characteristics similar to Tensar Mining Grid, but with eight times the strength and increased flexibility. With strength bands knitted directly into the material, Minex Rock Mesh has largely replaced wire rope reinforcement (NM200X20011R). Unlike chain link, sections of Minex mesh screen can be assembled above ground and easily transported underground for installation. Strengths up to 800kn x 800kn are available.

Highwall Screens – Tensar Mining Grids secure steep highwall faces to control falling debris at mine entrances. Since large sections of grid can be pre-sized and taken to the top of the cut for installation, they’re easier to handle and install than chain link. Strong, lightweight and corrosion-resistant, mining grids provide a superior alternative to wire mesh. 

Underground Applications: Mining Roof and Wall Support

Strong, lightweight and corrosion-resistant, mining grids provide a superior alternative to wire mesh.

Road Reinforcement – When soft bottom conditions require effective base reinforcement, the Spectra® Roadway Improvement System featuring Tensar® TriAx® Geogrid is the ideal solution. A layer of TriAx Geogrid topped with suitable aggregate distributes wheel loads over a wider area to increase bearing capacity and extend service life. TriAx Geogrid also reduces the aggregate thickness required, and unlike poured concrete pads, no special equipment is needed for installation. Tensar Geogrids have routinely supported 50-ton loads underground.

TriAx® Geogrid and the use thereof are protected by U.S. Patent No. 7,001,112.

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