Land Use of Waste Disposal Sites
Junji Okada*, Satoshi Ono** and Koji Kubota***Abstract
The application of the usual geotechnical engineering to wastes-reclaimed ground is often difficult because of the variety and transition of the waste materials. On the other hand, the land use of waste disposal sites tends to increase due to social needs for its effective use and the backup of the progress of studies concerning waste materials and wastes-reclaimed ground. In this paper, at first, the characteristics and estimation of these sites are summarized in term of engineering based on previous studies, and some factors that should be noted in case of planning, design and construction of structures on the site are pointed out. Secondly, it is described in term of environmental pollution how to apply counter measures against the polluted leachate in wastes-reclaimed ground. In addition, the structure of the vertical seepage control work installed in the ground as a counter measure for the use of the site disposal facility is discussed and its performance is estimated. Furthermore, the permiability of sheet piles that will be an important theme in near future is discussed.
Key words: wastes, land use, controlled type landfill site, characteristics of ground, soil investigation, seepage control work