Hydraulic structures called longitudinal protection structures run parallel to the direction of a river. These structures often span a substantial distance and are frequently built on or supporting existing natural banks.
They provide a number of functions, including:
- Erosion control
- Meandering control
- Containment of the usual flow channel
- Flood protection
Even though erosion is lessened by a trained water channel, the natural longitudinal or transverse currents can nevertheless erode the river banks or the toe of the banks, rendering them unstable. In order to resist these forces, the river bank protection solution must be sufficiently strong and well-designed.
A structure is needed to maintain the bank while also providing ongoing erosion protection when the channel bank is excessively steep and prone to erosion. Flexible double twist hexagonal mesh gabion walls or reinforced soil systems are frequently used. In these testing circumstances, a flexible system is crucial, along with adequate corrosion protection for the wire utilised in the gabions. According to local laws, heavily galvanised wire with an extra polymer coating is needed.
A straightforward erosion protection strategy might be appropriate when the channel bank is geotechnically stable. The slope might gradually erode and become steeper without this protection, eventually becoming unstable.
We provide a graded, logical range of hydraulic erosion protection techniques, including biodegradable biomats, artificial reinforced and unreinforced 3-D geomats, and conventional double twist steel wire-based products Gabions and Mattresses, so that the level of intervention is appropriate to the erosion risk you face.
We also provide methods for natural engineering. In order to establish the optimal conditions for the natural re-vegetation of the slope, soil bioengineering relies on the combination of man-made materials and plants. The man-made materials offer immediate and continuous protection to the local situation. The vegetation’s roots are securely embedded in the erosion control.
