| 摘要 |
PURPOSE: A drain method of guiding water collection in a rock-slope is provided to suppress ice on a road during the winter due to drainage to a slope direction. CONSTITUTION: A drain method of guiding water collection in a rock-slope comprises following steps. Drain holes are alternately and radially punched from the outside of the slope to the inside of the slope in the opposite direction of the slope direction based on a water pumping hole in order to decrease the groundwater level inside the rock slope. The collected subsurface water is pumped to the upper part for outflow to collect and guide subsurface water. |
