This method utilizes construction-generated soil as an alternative to natural sand, the customary improvement material. The drain effect is obtained through man-made drainage material combined with bagged man-made drainage material, and the method can be used for the same purposes as conventional methods. It is a highly economical and environment-friendly method, saving on natural resources while at the same time solving the disposal problem of construction-generated soil.
|New civil engineering technology
|February 1999 Japan Institute of Country-ology and Engineering General Civil Engineering Technical Certification #1102