#### vanderghast

##### New Member

I have 165 meter rise in height over 500 meters, ie a 33% gradient over 500 meters. To get this down to 10% gradient, we would have to cut and fill 1.5 bank cubic meters, and the height of the cut would be up to 80 meters.

We are looking for the most cost effective and fastest to implement method, I am thinking of increasing the gradient. We have considered tunnels (expensive and slow to implement), conveyor transfer (moderate expensive and moderate implementation speed).

We are using standard tronton, or 3 axle trucks bearing 30 tonne loads with a total loaded weight of about 45 MT. We use MAN or HINO trucks.

I am considering several options for the gradient, 12%, 16%, 20%. With our current trucks, at 20% gradient, I would have to half load the trucks and maybe do a rehandle at the top of the slope, fully loading the trucks at the top of the hill.

Are there any better solutions?

a) are there any trucks of a similar size, or could we custom make/modify to do a 20% gradient? Since it is only 500 meters, if there are trucks which can handle the gradient, I would buy a few to use as shuttle, so we would transfer to these trucks and transfer back.

b) I was also thinking of a powered tow up the slope. Could we use either a tow truck of some sort just to get the trucks up the 500 meters? Or how about a towline from the top of the slope powered by a crane?