1results about How to "Effectively stop" patented technology

The application provides a hydrogeological drilling layered water-stopping device and method. The water-stopping device comprises a drill bit and a drill pipe, the outer side of the drill pipe is provided with a plurality of arc-shaped water-stopping plates, the plurality of arc-shaped water-stopping plates are arranged in a circumferential annular array along the drill pipe, adjacent arc-shaped water-stopping plates are fixedly connected through elastic arc-shaped water-stopping belts, and a plurality of insertion tubes are dispersedly arranged on the outer wall of the arc-shaped water-stopping plates; a driving device for pushing the arc-shaped water-stopping plates outward is arranged in the drill pipe, and the driving device is connected with the arc-shaped water-stopping plates through at least two groups of transmission mechanisms. The drill bit is drilled downward from the ground, the arc-shaped water-stopping plates and the arc-shaped water-stopping belts are outwardly moved and attached to the hole wall, and the insertion tubes are fixed on the hole wall of the drill hole to stop water, so that the water is effectively stopped, and the water gushing out in the drilling process enters the water storage tank through the water inlet channel, and then the water is pumped away and discharged through the driving pipe, so that the hole is prevented from being blocked by water.