| 摘要 |
<p>PURPOSE:To facilitate execution, to increase a treatment amount and to prevent the leakage of pollutants by spraying a spray material prepared by mixing cement, sand, silica fume or the like to the recessed part excavated in the ground to solidify the surface layer of the recessed part and throwing waste on the surface layer to level the surface of waste before covering the waste with soft water permeable soil. CONSTITUTION:A recessed part 2 whose normal plane part 3 has a relatively steep slope is excavated in the ground 1 and a spray material prepared by mixing cement, sand, silica fume and water is sprayed to the surface of the recessed part to form a surface layer 4 and, after the surface layer 4 is solidified, waste B is thrown on the surface layer 4 and the surface of the waste B is leveled to be covered with soft water permeable soil. As a result, compactness being the characteristic of mortar concrete is improved by silica fume and uniform density is obtained to enhance strength or the close adhesiveness with the ground 1. Therefore, the damage to the surface layer 4 due to the wt. of the waste is prevented and the normal plane part 3 can be executed with a steep incline and the possible throwing amount of the waste B can be increased.</p> |
