佐賀平野における帯状構造物の地盤調査間隔について

概要

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This paper proposes a reasonable interval for soil investigation along with road and embankment. Several examples are presented in comparison; one is soil profile described by two boring data of about 500 meter distance, and another is soil profile drawn on the basis of conepenetration-test (CPT) conducted in 100 meter pitch. Results clearly show that the longer the investigation distance, the soil profile becomes simpler, and there is a risk of overlooking the existences a sand layer that works as drain layer, a liquefaction layer, a thick soft clay layer, and also other important geological information. Conclusion is derived that reasonable way of investigation of soil profile for designing road and embankment is to conduct a least number of boring together with supplemental CPT in 100m pitch, not only from viewpoint of getting proper soil profile but also from cost performance.
社団法人地盤工学会の論文
2004-11-01