Soil erosion is a concern for construction, especially in huge projects. When it comes to construction, focus on erosion control is increasing and manufacturers are continually looking to develop innovative products for erosion and sedimentation control.
Soil erosion can be caused by a variety of factors. Depending on this factor and the severity of the issue, solutions vary. This is the reason why there are different approaches when it comes to erosion control in construction projects.
However, erosion control during construction has several benefits. For instance, it can help preserve the construction site, and protect the new structures. Minimizing the environmental impact on the surrounding is another consideration.
In fact, the focus of erosion control is to reduce the environmental impact while simultaneously cutting costs. All that said; let’s talk about common ways of controlling erosion at construction sites:
1. Articulated Concrete Blocks
Articulated concrete blocks are available in a wide variety of thicknesses and shapes. They are used as revetment systems or sloping structures on waterway embankments or manmade drainage systems.
In simpler words, blocks of concrete are used to form a grid of units to act as slopes. They are helpful in erosion control by ensuring water runoff is as desired.
2. MSE Walls
MSE stands for Mechanically Stabilized Earth. MSE walls have largely replaced conventional concrete walls in recent years. These walls offer several advantages over traditional concrete such as speed of installation, improved erosion control, and adaptability.
3. Turbidity Barriers
Turbidity barriers are useful in multiple ways; they prevent soil erosion as well as water contamination. They are usually made of floating geotextile membrane and employed in various water bodies. They are anchored to the bottom with the help of weights and used for sediment control.
4. French Drains
French drain consists of an underground piping system that is used to channel water to an exit. Also known as drain tile, these pipes may also be perforated to allow water seeping into the soil underneath the tile. This water ensures erosion control while excess water is carried away.
5. Soil Nails
Soil nails involve drilling into the soil and placing steel bars deep into it. Soil nailing offers resistance against slope failures; the installation is simple as well. These nails—steel bars—have capped surfaces to create a barrier resembling that of a retaining wall.
6. Riprap
Riprap is effective for erosion control in areas of dense water runoff such as lake shores or riverbeds. It consists of a layer of interlocked stones that serves as a barrier on unstable slopes. Commonly, a synthetic geotextile is placed under the riprap to prevent soil displacement.
7. Dust Control
Dust control is applicable on all construction sites where there’s a risk of water or air pollution from the traveling dust. Dust presents the risk of wind erosion as well. Dust control techniques usually used for soil erosion control involve mister water, polymer additives, and silt fences.
8. Geotextiles
Geotextiles are commonly used for erosion control and soil improvement in a variety of construction projects such as roads, pipelines, and embankments. The type of geotextile used depends on the application.
For instance, open mesh weave, closed fabric, nonwoven surfaces are commonplace. When it comes to biodegradable products for erosion control, coir is leading the way. Coir products are proving to be very effective in erosion control on construction sites and farms.
Erosion control blankets and mats made out of coir (coconut fiber) present a great biodegradable alternative to the synthetic products. At RoLanka, we offer GeoNatural products for erosion control, restoration, and sediment control applications; get in touch with us now!