System and method for stabilizing a mine
AssigneeDrill Tech Drilling and Shoring, Inc.
InventorsPatrick Hugh Carr, Clay Robert Rathbun
Life of this patent
Estimating the term…
Abstract
An aggregate slinger for an underground void stabilization system, the aggregate slinger comprising a vertically extending shaft and a number of dispersing members. The vertically extending shaft is inserted through a ground hole into an underground void and rotated about a vertical axis in the ground hole. The dispersing members are configured to extend radially from a lower end of the vertically extending shaft in the underground void so that the dispersing members radially spread aggregate descending into the underground void from the ground hole to form a radially enlarged support column of aggregate in the underground void.
Claims19
An aggregate slinger for an underground void stabilization system, the aggregate slinger comprising:
- a vertically extending shaft configured to be inserted through a ground hole into an underground void and rotate about a vertical axis in the ground hole, the vertically extending shaft including opposing upper and lower ends;
- and
- a plurality of members configured to extend radially from the lower end of the vertically extending shaft in the underground void so that the plurality of members radially spread aggregate descending into the underground void from the ground hole to form a radially enlarged support column of aggregate in the underground void,
- wherein the plurality of members are circumferentially spaced unevenly around the vertical axis.
An aggregate slinger for an underground void stabilization system, the aggregate slinger comprising:
- a vertically extending shaft configured to be inserted through a ground hole into an underground void and rotate about a vertical axis in the ground hole, the vertically extending shaft including opposing upper and lower ends;
- a plurality of members configured to extend radially from the lower end of the vertically extending shaft in the underground void so that the plurality of members radially spread aggregate descending into the underground void from the ground hole to form a radially enlarged support column of aggregate in the underground void;
- and
- a bearing configured to be positioned in the ground hole such that the vertically extending shaft is aligned in the ground hole via the bearing, wherein the bearing includes a plurality of apertures for the aggregate to pass therethrough.
An aggregate slinger for an underground void stabilization system, the aggregate slinger comprising:
- a vertically extending shaft configured to be inserted through a ground hole into an underground void and rotate about a vertical axis in the ground hole, the vertically extending shaft including opposing upper and lower ends;
- and
- a plurality of members configured to extend radially from the lower end of the vertically extending shaft in the underground void so that the plurality of members radially spread aggregate descending into the underground void from the ground hole to form a radially enlarged support column of aggregate in the underground void,
- wherein each of the plurality of members is shiftable between a retracted position for lowering the plurality of members through the ground hole and a deployed position for radially spreading the aggregate, and
- wherein each of the plurality of members includes a plate oriented substantially horizontally when the member is in the deployed position.
Dependencies are inferred from the claim text.