What Are The Methods Of Mining In Order To Create Sand Blocks In West Bengal

For the construction of building and roads and create the sand blocks in west bengal, sand is being extracted from the rivers in West Bengal. For the construction industry, the companies are dredging the rivers in order to get impure free and good quality sands. There are some of the methods of extraction of sand. These are off-channel mining and in-stream mining.

In-stream Mining

In order to lower the cost of transportation of the sand, the in-stream sand mining is often done in locations which are along the route of the transportation or close to the end markets. This type of mining is extremely damaging to the aquatic ecosystem and properties. While the flow of sediment can get hamper by the over dredging of the streams, the channels can change its course. Hence, within the sustainable limits, one can do the mining activities without harming nature. There are few recommendations which are as follows -

• Setting an elevation below which the mining is not allowed
• On the basis of annual replacement levels, one should not permit a mining scale.
• There should be a long term monitoring mechanism.
• Limiting extraction methods to bar skimming
• Between May And September, one needs to limit the mining activities

Off Channel Mining

In changing the alluvial system, floodplain extraction or off- channel mining of river sand is done. As the meandering rivers flow across the flood plains, under this system it forms a possibility that the river channel would move towards the pit. This is a situation in which the river flows through the area left between the pit and river and is known as river capture. There are some recommendations, which can lessen the harm caused by off-channel mining.

• The the walk of the channel, one should keep the maximum depth of the pit.
• Away from the main channel, the off-channel extraction should be done.
• One needs to set up a long run monitoring mechanism.
• In order to provide the brought back to support the wetland habitat, pits should be redeemed for agriculture.
• In the long term, one should establish proper responsibility and accountability.

Mining Process Of Dolomite

There is a various process of dolomite mining, which is being practiced in the dolomite minesin arunachal pradesh.They are the removal of soil and vegetation layer, cruising and blasting of dolomite and transportation.

Conclusion: The sand and dolomite mining is one of the most profitable types of mining. To know more one can go the “Abhinna Group“ and check details.