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I was chatting with someone about sandy soils and collapsing pits a couple of weeks ago. The team they were working with had all sorts of clever but costly ideas but the locals took the approach of having covered superstructures to keep the rain off and they left the tailings around the outside of the pit so that the rain ran off away from the pit. Worked well for a couple of years until the pit was full.

You may want to tack down the guys at Bushproof (Madagascar)- they will have the answer to this question for sure. http://www.bushproof.com/

All the best,

Steve

I was chatting with someone about sandy soils and collapsing pits a couple of weeks ago. The team they were working with had all sorts of clever but costly ideas but the locals took the approach of having covered superstructures to keep the rain off and they left the tailings around the outside of the pit so that the rain ran off away from the pit. Worked well for a couple of years until the pit was full.

You may want to tack track down the guys at Bushproof (Madagascar)- they will have the answer to this question for sure. http://www.bushproof.com/

All the best,

Steve