Role Of Geo Bags In Soil Erosion

Ever since the geobags were started to be used, it has been observed that it not only provides robust protection against floods but also is very useful in arresting river bank and protecting beaches. Geobags are made out non-woven polyester and polypropylene fabrics that are filled with sand or soil and are laid on the embankments thereby creating a wall like structure which allows only the water to flow through them and holds back sediments, stones, pebble and other debris thereby contributing in the prevention of soil erosion. Geobags are generally used to build shore-protection structures. Few important applications and advantages of geo bags are mentioned here as under:

What Is River Bank Erosion?

River bank erosion occurs when water wears away at the banks of a river or stream. While river erosion is a naturally occurring process, human impact can increase its rate. Common contributing factors to river and stream bank erosion include:

· Clearing vegetation away from the river bank.

· Flooding.

· Intense rainfall.

· River bank saturation from non-river water.

· Stream and land use management.

· River straightening.

· River redirection around infrastructure or debris in the channel.

· Characteristics of the river bank soil.

While river bank erosion is an on-going issue, there are certain river bank control methods available that can slow down or even stop the process. Because erosion occurs in a natural environment on the water, most people prefer to use natural materials to control river bank erosion.

Non-woven geobags are used for their smooth, felt-like surface that allows water to flow through the fabric while still filtering particles. Non-woven geobags are used in areas that require subsurface filtration and stabilization and provide adequate drainage. Non-woven geobags are often found in asphalt overlays and in the under-structure of ponds. Non-woven geobags are permeable, so they’re ideal for areas where you need drainage and sediment control. Because nonwoven geotextiles are made with synthetic fibres, they’re UV- and rot-resistant.