鈴木麻里子 - Mariko Suzuki

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It becomes expensive to reconstruct an old earth-fill dam, because the suitable soil materials have to be borrowed in from some distance. The Japanese Society of Irrigation, Drainage and Rural Engineering, Dec. It is necessary to be said that the material is not only low cost but also mechanically stable and environmentally friendly. They have distinct zones of dissimilar material, a watertight clay core. Kawabata Toshinori, Suzuki Mariko, Uchida Kazunori, Suzuki Takeshi Japan has 210,000 earth-fill dams and many of them are located in the Hyogo prefecture. Thus, it was concluded that the dehydrated cake cannot be handled based on the commonly used soil standards. The suitable soil materials of impermeable core zone are very important; nevertheless it is difficult for us to secure them near the dam site. In addition, physical and mechanical tests were conducted on the dehydrated cake, and then its properties were compared with those of commonly used cohesive soils. The effective use of dehydrated cake discharged from crushed stone quarry is required to relieve the tightness of the residual capacities of disposal sites and to secure limited natural resources. In addition, it was found that reducing the water content and adjusting the particle size are effective in increasing the strength of dehydrated cake and that reducing the water content is particularly effective. Therefore, we made decision regarding the best mixture proportion based on the results of unconfined compression, and permeability tests. It was found that the dehydrated cake had significantly different properties from those of general cohesive soils, and it also did not match the mechanical properties of general compacted soils. In this paper, we proposed the using of the soil for impermeable core zone, using materials that should be recycled. In this study, a dehydrated cake discharged from crushed stone quarry with excellent caking properties was examined to see if it can be used for soil materials, such as impermeable materials. Such muddy soil reduced the volume of water kept in the reservoir and declined the quality of water. In addition, these earth-fill dams have large deposit of muddy soil in the reservoir. Though the muddy soil have to be removed, it is not easy to dispose it because of the high moisture content.。

鈴木 麻里子 - Mariko Suzuki

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鈴木 麻里子

SUZUKI Mariko (Graduate School of Agricultural Science / Department of Agricultural Engineering and Socio

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鈴木 麻里子

鈴木麻里子 - Mariko Suzuki

鈴木麻里子

鈴木麻里子