ROCK-FILL DAM DEFORMATION CONTROL METHOD

摘要

A rock-fill dam deformation control method comprises the following steps of: preparing a pasty stable grouting liquid and cement mortar; drilling holes in the dam body of the rock-fill dam, the holes comprising stable grouting liquid grouting holes for sealing, and filling grouting holes; and grouting: injecting the pasty stable grouting liquid into two rows of holes around a filling grouting area to make the pasty stable grouting liquid and a concrete panel on the upstream side of the rock-fill dam form an enclosed area; injecting the cement mortar into holes in the grouting area in an orifice filling mode after the pasty stable grouting liquid has been injected for 14 days, and controlling the rock-fill dam deformation after the grouting area has been grouted for 28 days. The method can improve the deformation resistance of the rock-fill dam, the deformation of the dam body can be controlled, the grouting quality can be guaranteed, and may be applied to unsafe rock-fill dam or water resources and hydropower engineering rock-fill deformation control.