SUCTION PREVENTIVE CONSTRUCTION METHOD FOR HYDRAULIC STRUCTURE

PROBLEM TO BE SOLVED: To obtain a suction preventive construction method for a hydraulic structure in which a water permeable function is not damaged by securing a wide water permeable part when an asphalt mat, to which a water permeable material in a mat shape whose surface is covered with a protective net is mounted along the lower face and the edge, is laid inside reclaiming earth and sand. SOLUTION: In the suction preventive construction method for the hydraulic structure in which the asphalt mat 6, to which the water permeable material 10 in the mat shape whose surface is covered with the protective net 9 is mounted along the lower face and the edge, is laid inside the reclaiming earth and sand 5, a plurality of water permeable holes 11 are provided to the asphalt mat 6 at proper intervals in the lower direction of the hydraulic structure such as a levee body 2.