Use of high-performance turf reinforcement Mats for erosion protection

Maccaferri Inc., Hagerstown, MD 21740, USA

^* Corresponding author: l.mottadelli@maccaferri.com

Abstract

High-Performance Turf Reinforcement Mats (HPTRM) are a specific type of geocomposite used for erosion protection. These innovative products are 3D mats made up mainly of synthetic fibers, which are combined with synthetic or metallic reinforcement to create a strong, durable material that can withstand the forces of water and soil movement. Their purpose is to enhance the topsoil resistance and support the natural vegetation of a slope. HPTRMs serve multiple purposes. They act as physical barriers, absorbing water, and wind impact on soil. They also curtail soil loss, fostering vegetation growth, and augmenting superficial soil layer shear strength. Critical to achieving a successful application, is that the TRM allows for fast and durable re-vegetation. The 3D open weave structure of the matting provides the soil with stability and grants plant root establishment. This contributes to slope stabilization and erosion prevention. Further, these mats retain moisture, fundamental for vegetation growth in dry environments. Over the years, the use of HPTRM is gaining popularity in several different applications. In this paper, we will illustrate three different applications. The first one is a soil veneer reinforcement on a long slope, where the HPTRM provided increased shear stress to prevent sliding of the topsoil in extreme weather conditions. The second is an installation in a hydraulic application as a soft armor lining. The third is a soil nailing application, where the HPTRM has been used in combination with anchors to improve the stability of a steep slope.