Our rockfall protection mesh, BioMac® CC blankets and a gabion wall provided an effective combined solution to stabilize the San Fermin slope revetment
An erosion control and slope stabilization solution was needed at la Colorada mine in the state of Zacatecas, where waste materials from the mining process are stockpiled to form the San Fermin slope revetment. Our product mix offered an effective combined solution.
Operated by Pan American Silver, La Colorada is an underground silver mine located in the Sierra Madre in the state of Zacatecas, Mexico. The mine produces silver and gold, silver rich lead and zinc concentrates. Waste materials from the mining processes are stockpiled to form the San Fermin slope revetment, whose soil has no cohesion and is very expansive.
An erosion control solution was needed to stabilize the slope as a solids contact clarifier was to be constructed at its foot. We proposed a combined solution using our Double Twist (“DT”) mesh for rockfall protection and the BioMac® CC geomat for erosion control. Moreover, a gabion wall was installed as additional protection.
Engineered from our double twisted hexagonal woven steel wire, our DT mesh is a core component of our MacRO rockfall mitigation and natural hazard protection application area. It is used as a drapery system to prevent rocks and debris from falling on the facilities below.
BioMac® CC blankets provide immediate protection to vulnerable slopes to the effects of erosion. They are made of fully biodegradable coir fibres reinforced with a fine polypropylene scrim netting securely stitched on both sides during manufacturing. This product was designed to facilitate the re-establishment of vegetation on slopes.
Our gabions are cages which are engineered from double twisted hexagonal woven steel wire mesh. In this project, they were used to form a retaining structure acting as further protection from slope erosion.
For more information, you can download our case history here.