Geofabrics range of Maccaferri rockfall drapery systems are designed to control rockfall movement by guiding falling debris to a collection point at the toe of the slope thus protecting structures from debris damage.
Produced by Maccaferri for over 140 years, double twist mesh is the most established technical rockfall protection solution in the world. Hexagonal woven mesh is supplied as rolls (both width and length selected by customer) for ease and economy of use.
Unlike single twist (‘chain link’) mesh the construction of DT mesh inhibits the propagation of tears making it an extremely durable and easy to use product. DT mesh is most commonly used in the form of a protective curtain/drapery. The mesh is suspended from and restrained by steel wire ropes and anchors, with adjacent rolls connected into a continuous curtain using high strength C-rings applied by mechanical or pneumatic tools.
WHAT CAN YOU USE IT FOR?
Maccaferri Rockfall Netting or Double Twist Mesh is typically used in both simple drapery systems and secured/pinned drapery system. Normally for smaller rock sizes or very thin layers of loose surface material when use for secured drapery with less undulating slope.
WHERE CAN YOU USE IT?
Double Twist steel wire mesh is a highly efficient mesh combining ease and flexibility of use with unsurpassed cost-effectiveness. It is typically used as an ‘at source control’ measure. Used around the world, Maccaferri rockfall netting mesh is proven to offer robust, long lasting and cost-effective rockfall protection. On moderately steep slopes, or those where some vegetation may grow, the mesh should be kept as close to the slope as possible. On very steep and/or near vertical slopes, the net must be anchored at the top of the cliff, and left unanchored at the bottom, thereby allowing rocks and debris to fall into a collection ditch at the toe of the slope.
ADVANTAGES
- Does not unravel if wire breakage occurs making it cost effective with low maintenance requirements
- Flexible and versatile to match existing slope and rock profiles
- Different levels of coating protection for durability in a wide range of environments
- Does not inhibit regrowth of vegetation
- No overlapping mesh on lateral connections means fast installation and minimal material wastage
INSTALLATION
Talk to our team about installation methods and referral to expert installers for your project.
DESIGN SUPPORT
To support design of rockfall protection we offer an advanced suite of software free to our clients.
To assist engineers with the design process, the Geofabrics team of engineering specialists are available to give technical advice in the use of the software as well as provide training in-house or via seminars. Our team can also provide certified design if required.