Consolidation Deformation Analyses of the Embankment Foundation Ground by Elasto-plastic Finite Element Method In the case of the embankment in the right bank of Ariake-kantaku new Shiroishi sluiceway

In this paper, the results of the consolidation deformation analyses, which were carried out to clear the behavior of the foundation ground during/after the construction of the embankment in the right bank of New Shiroishi sluiceway, were described. These analyses were based on the infinitesimal and...

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Published inTransactions of The Japanese Society of Irrigation, Drainage and Reclamation Engineering Vol. 1999; no. 202; pp. 453 - 465,a1
Main Authors HIGASHI, Takahiro, TAKAYAMA, Masateru, IIMORI, Saburo, NISHINO, Kazuo
Format Journal Article
LanguageJapanese
Published The Japanese Society of Irrigation, Drainage and Rural Engineering 25.08.1999
Subjects
Consolidation deformation analysis
Elasto-plastic finite element method
Embankment
Finite deformation analysis
Infinitesimal deformation analysis
Soft ground
Subsidence
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Summary:In this paper, the results of the consolidation deformation analyses, which were carried out to clear the behavior of the foundation ground during/after the construction of the embankment in the right bank of New Shiroishi sluiceway, were described. These analyses were based on the infinitesimal and finite deformation theories. From comparing the results obtained by the analyses with the results of the field observation, it was cleared that the settlement obtained by finite deformation analysis, in which the coefficient of permeability k ten times greater than k obtained by standard consolidation tests was used, on condition that there was the inundation on the surface was well coincident with the observed one. And then, finite deformation analyses, in which the reduction of the total head in the aquifers (i.e. sand layers) was taken into consideration, were carried out. As a result, the settlement obtained by the analysis using the variation pattern of the total head, which was similar to the variation pattern of the ground water level at Saga prefecture's subsidence observational well nearest new Shiroishi sluiceway and whose maximum reduction value of the total head was 4m, was well coincident with the observed one.
ISSN:0387-2335
1884-7234
DOI:10.11408/jsidre1965.1999.453