排水・補強両効果を考慮した複合不織布による火山灰質粘性土急勾配補強盛土の設計法試案

概要

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Recent development of new geosynthetics such as composite fabrics has been able to construct steep earthfill utilized high water content volcanic cohesive soils such as Kanto loam and/or even construction by-products which have never been used as fill materials. Recent developed composite fabric has almost the same tensile strength of geogrid and of course drainage effect. However, current design method of the steep reinforced earthfill with nonwoven fabric has not considered its reinforced effect and strength increase of cohesive soil by consolidation. Therefore, this paper deals with a proposal of new design method of a steep reinforced earthfill taking strength increase of volcanic cohesive soil with high water content by consolidation, characteristics of soil-fabric interaction and reinforced effect of composite fabric into account.
長崎大学の論文