| 摘要 |
PURPOSE: A drainage system for a slope of the road is provided to dispose smoothly sewage generated from the slope by installing a drain net in front and rear sides of an H-shaped retaining wall and to prevent a structure from deforming by earth pressure. CONSTITUTION: A side drainage way(200) is mounted at the side of the road and composed of a retaining wall contact unit(220) and a road contact unit(230) protruded at both sides of a flat plate unit(210) and a plurality of pin holes(222) arranged at the retaining wall contact unit and combined with an H-shaped retaining wall(300) by a connection pin(270) to prevent movement. The H-shaped retaining wall is installed at the retaining wall contact unit of the side drainage way and composed of steel pile inserting grooves(310) formed on both longitudinal sides in a semi-circle form, net inserting grooves(320) formed in a width direction, respectively, drain holes(322) passing through upper, middle, and lower sides of the net inserting groove, and a pin hole(302) formed on one surface of the net inserting groove to combine the H-shaped retaining wall with the side drainage way. Plural rectangular drain nets(500) are settled in the net inserting grooves of the H-shaped retaining wall. A circular steel pile(700) connects the H-shaped retaining walls longitudinally, contacts with the H-shaped pile, and reinforces the ground bearing power by a three-stage tip reinforcing ring(710) formed at the lower part.
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