Patent ID: 8911177

Claim:
A stowing method for a goaf of potash salt ore, the method comprising: making a wall slurry into barricades inside underground tunnels in a goaf of potash salt ore, the barricades have the same area as the sectional area of a tunnel and has a thickness of 0.5 to 5 meters, with an interval between adjacent barricades of 5 to 100 meters; and filling a filling slurry between said barricades, wherein, said wall slurry is comprised of the following ingredients by weight: a tail liquid of potash salt ore: 20˜40%; a tailing of potash salt ore: 30˜60%; a first gelling agent: 8˜25%; and a modifier: 2˜8%; wherein, said filling slurry is comprised of the following ingredients by weight: a tail liquid of potash salt ore: 17˜46%; a tailing of potash salt ore: 50˜80%; and a second gelling agent: 1˜5%.