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題名 | 飽和凝聚性土壤之不排水異向性強度準則=An Anisotropic Undrained Strength Criterion for Saturated Cohesive Soils |
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作者 | 蘇世豐; 廖洪鈞; Su, Shi-fon; Liao, Hung-jiun; |
期刊 | 中國土木水利工程學刊 |
出版日期 | 19970300 |
卷期 | 9:1 1997.03[民86.03] |
頁次 | 頁57-64 |
分類號 | 441.12 |
語文 | chi |
關鍵詞 | 飽和凝聚性土壤; 異向性; K[feeb]壓密; 不排水剪力強度; Saturated cohesive soil; Anisotropy; K[feeb]consolidation; Undrained shear strength; |
中文摘要 | 凝聚性土壤因受本身異向性與Ko壓密作用之影響,到目前為止,尚未能完整地定 義出飽和凝聚性土壤之不排水強度準則。 有鑑於此, 本研究將針對凝聚性土壤的異向性與 Ko 壓密特質, 以及參數取得之簡易性,藉由三軸軸向壓縮不排水剪力強度與軸向伸張不排 水剪力強度,來建立一套較為完整的不排水異向性強度準則。本準則經多組試驗數據印證, 並與其他強度準則比較,均表現出較佳之適用性。 |
英文摘要 | Due to the inherent anisotropy and the Ko consolidation effect, the undrained strength criteria in the literature have not been able to fully describe the strength behavior of naturally deposited cohesive soil. This paper proposes an undrained stength criterion that can not only account for the soil anisotropy and the Ko consolidation effect but also represent better the undrained stength behavior of cohesive soil. To make this criterion more useful, the parameters needed are limited to two, namely, the axial compressive undrained shear strength (Sue) and the axial extension undrained shear strength (Sue). These parameters can be easily obtained from the traditional triaxial tests. The suitability of the proposed criterion has been validated satisfactorily. |
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