There is a limestone surface mine, the annual output of 4 million tons. The stripping ratio is 0: 1. The...

There is a limestone surface mine, the annual output of 4 million tons. The stripping ratio is 0: 1. The compressive strength is 80 Mpa. The bench is 12 meters high. From the surface there is a farmer building, the distance is 200 meters.

The surface of the year working time is 300 days, one day only one class work class (8 hours). For this surface, I have exploded every three days. Please finish the blasting design of this surface mine?