Confining a watercourse within a defined channel has clear benefits; the consequences of uncontrolled water can be devastating.This is particularly relevant within urban areas, adjacent to infrastructure or precious agricultural lands. These river training works protect the channel banks and bed to limit the effect of the hydraulic shear forces, preventing erosion, scour, land-loss and sediment transport.
The channel banks may also be unstable and require structural support; our retaining walls and soil reinforcement
solutions, appropriately designed and specified for use in a fluvial environment are ideal.
The cross section of the channel is fundamental to the performance of the conveyance capacity of the watercourse. River training works typically require both banks and the channel bed to be protected, thereby maintaining the position of the watercourse.
Incorporating soil bioengineering techniques within the solution rapidly promotes vegetation and recolonisation of the banks.
The stability of mass gravity retaining walls relies upon the structural integrity of the units, and their filled mass, to support or contain unstable earth slopes. In order to select the optimum retaining wall solution, key considerations include:
• The geotechnical parameters of the retained and foundation soils
• The presence of water and hydrostatic loads
• External loads from structures and live or seismic loads
• The simplicity and speed of construction
A channel section may feature a combination of solutions to contain the flow:
- A low flow main channel with gabions and Reno Mattresses
- A high flow ‘overtop’ channel with MacMat® R for flood or storm conditions
Selecting an appropriate solution should consider the availability of materials at the project site. Re-using site-won materials, for example river cobbles, within the hydraulic works dramatically reduces the carbon footprint of the solution,yet can deliver equivalentperformance.
The intended function of the watercourse strongly influences the design parameters and solutions
selected. This may be to:
- Maintain navigation in canals
- Provide efficient irrigation for agricultural processes
Particular attention is required if river traffic will cause
wave action, or other complex flow conditions, such as
propeller currents.
Great for you
Dson Industries is an expert in the design / build / consulting for the construction of Mass Gravity Gabion Channeling Works and Retaining Walls .
