A rock fragmentation device and method is provided which includes a shaft and a plurality of expandable members positioned along a length thereof. The shaft has a hollow length therethrough for the passage of a pressurized fluid, and a plurality of feed apertures for delivery of the pressurized fluid to the expandable members. The shaft further includes a feed inlet for receiving the pressurized fluid from a hydraulic system. The plurality of expandable members each have an inner diameter dimensioned to receive the shaft in a tightly engaging connection, and are positioned on the shaft in fluid tight engagement effective for receiving pressurized fluid via the feed apertures without leaking fluid. The expandable members are expandable, upon filling with the pressurized fluid, to sufficient dimensions to break apart rock when fitted inside a cavity formed therein.

A rock fragmentation device and method is provided which includes a shaft and a plurality of expandable members positioned along a length thereof. The shaft has a hollow length therethrough for the passage of a pressurized fluid, and a plurality of feed apertures for delivery of the pressurized fluid to the expandable members. The shaft further includes a feed inlet for receiving the pressurized fluid from a hydraulic system. The plurality of expandable members each have an inner diameter dimensioned to receive the shaft in a tightly engaging connection, and are positioned on the shaft in fluid tight engagement effective for receiving pressurized fluid via the feed apertures without leaking fluid. The expandable members are expandable, upon filling with the pressurized fluid, to sufficient dimensions to break apart rock when fitted inside a cavity formed therein.

A rock fragmentation device and method is provided which includes a shaft and a plurality of expandable members positioned along a length thereof. The shaft has a hollow length therethrough for the passage of a pressurized fluid, and a plurality of feed apertures for delivery of the pressurized fluid to the expandable members. The shaft further includes a feed inlet for receiving the pressurized fluid from a hydraulic system. The plurality of expandable members each have an inner diameter dimensioned to receive the shaft in a tightly engaging connection, and are positioned on the shaft in fluid tight engagement effective for receiving pressurized fluid via the feed apertures without leaking fluid. The expandable members are expandable, upon filling with the pressurized fluid, to sufficient dimensions to break apart rock when fitted inside a cavity formed therein.

A rock fragmentation device and method is provided which includes a shaft and a plurality of expandable members positioned along a length thereof. The shaft has a hollow length therethrough for the passage of a pressurized fluid, and a plurality of feed apertures for delivery of the pressurized fluid to the expandable members. The shaft further includes a feed inlet for receiving the pressurized fluid from a hydraulic system. The plurality of expandable members each have an inner diameter dimensioned to receive the shaft in a tightly engaging connection, and are positioned on the shaft in fluid tight engagement effective for receiving pressurized fluid via the feed apertures without leaking fluid. The expandable members are expandable, upon filling with the pressurized fluid, to sufficient dimensions to break apart rock when fitted inside a cavity formed therein.

The present invention relates to a hybrid-type rock splitting packer using water pressure and rubber inflation pressure, and more specifically, the present invention comprises: a packer unit; a water pressure supply adjusting unit which comprises a water pressure pipe formed in the center inside the packer unit along the length direction, and first spray ports formed in the center of the water pressure pipe along the length direction so as to be spaced apart at predetermined intervals, and which supplies a certain level of water pressure to the first spray ports through the water pressure pipe; a shrinkage pressure supply unit which comprises a shrinkage pressure pipe installed on one side of the water pressure pipe so as to be spaced apart at a predetermined interval, and which supplies a certain level of hydraulic pressure or water pressure to the shrinkage pressure pipe; an inflation pressure supply unit which comprises an inflation pressure pipe installed on the other side of the water pressure pipe so as to be spaced apart at a predetermined interval, and which supplies a certain level of hydraulic pressure or water pressure to the inflation pressure pipe; and a crack expansion unit which is provided so as to be connected to the packer unit.

The present invention relates to a hybrid-type rock splitting packer using water pressure and rubber inflation pressure, and more specifically, the present invention comprises: a packer unit; a water pressure supply adjusting unit which comprises a water pressure pipe formed in the center inside the packer unit along the length direction, and first spray ports formed in the center of the water pressure pipe along the length direction so as to be spaced apart at predetermined intervals, and which supplies a certain level of water pressure to the first spray ports through the water pressure pipe; a shrinkage pressure supply unit which comprises a shrinkage pressure pipe installed on one side of the water pressure pipe so as to be spaced apart at a predetermined interval, and which supplies a certain level of hydraulic pressure or water pressure to the shrinkage pressure pipe; an inflation pressure supply unit which comprises an inflation pressure pipe installed on the other side of the water pressure pipe so as to be spaced apart at a predetermined interval, and which supplies a certain level of hydraulic pressure or water pressure to the inflation pressure pipe; and a crack expansion unit which is provided so as to be connected to the packer unit.