Effect of Permeability and Compressibility of Permeable Gravelly Sand Layers on Long-term Settlement of Pleistocene Deposits

Autor:	JANG, Wooyoung, MIMURA, Mamoru
Jazyk:	japonština
Rok vydání:	2005
Předmět:	Pleistocene gravelly sand layer elasto-viscoplastic finite element analysis せん断弾性係数 弾粘塑性FEM 511.27 擬似過圧密更新統粘土 511.3 透水係数 過剰間隙水圧 更新統砂礫層 coefficient of permeability excess pore water pressure elastic shear modulus quasi-overconsolidated Pleistocene clay
Zdroj:	京都大学防災研究所年報. B. 48:383-393
ISSN:	0386-412X
Popis:	大阪港では更新統砂礫層が厚く、十分な透水性を有しており、k=10^-3cm/s以上の透水係数であれば、その透水性は更新統粘土地盤の沈下性状にほとんど影響しないことがわかった。埋立初期からの更新統全層の沈下実測結果との比較から，更新統砂礫層の剛性はかなり大きく，地下水位低下に伴う有効応力変化によって生じる更新統砂礫層の圧縮量から算定する大倉らの手法で求めた値がパラメータとして妥当であることがわかった。 A series of elasto-viscoplastic finite element analyses is carried out to investigate the effect of the permeability and compressibility of the Pleistocene gravelly sand layers on the stress-deformation characteristics of the Pleistocene deposits in Osaka Port. The relevant procedure to evaluate the rigidity of the Pleistocene gravelly sand layers is also introduced. It is found that the estimation of the elastic shear modulus, G0 as well as permeability of the Pleistocene gravelly sand layers plays a significant role for the settlement prediction of the reclaimed islands in Osaka Port.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=jairo_______::341e75d8ae05f6626ff391a8aa1e4992 http://hdl.handle.net/2433/26519 Zobrazit plný text záznamu