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題 名 | 側向解壓引致之臺北粉質粘土之不排水潛變=Undrained Creep of Taipei Silty Clay Induced by Lateral Unloading |
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作 者 | 林宏達; 王建智; | 書刊名 | 中國土木水利工程學刊 |
卷 期 | 9:2 1997.06[民86.06] |
頁 次 | 頁201-209 |
分類號 | 441.12 |
關鍵詞 | 土壤潛變; 側向解壓; 軟粘土; Soil creep; Lateral unloading; Soft clay; |
語 文 | 中文(Chinese) |
中文摘要 | 本文根據臺北粉質粘土之均向壓密側向解壓不排水潛變試驗結果,探討由側向解 壓所引致之潛變行為,同時與先前完成之軸向加載潛變試驗結果相互比較。試驗結果顯示, 不同過壓密土壤具有相同潛變特性,但是軸向潛變量的大小不同。試驗結果也顯示正常壓密 及過壓密土壤之軸向潛量與 OCR 值呈一個簡單的冪次關係。 軸向加載與側向解壓試體,因 試驗過程主應力軸並未改變,二者的潛變行為非常相似,但側向解壓潛變試驗所量得之孔隙 水壓之變化情形較符合深開挖旁土壤之行為。 |
英文摘要 | A series of isotropically consolidated triaxial creep tests are per-fo rmed to investigate the undrained creep characteristics of Taipei silty clay induced by lateral unloading. Test results are compared with pre-vious results obtained by creep tests under axial loadings. Results show that clay specimens of different OCR exhibit the same creep character-istics. However, the amount of axial creep strain varies with OCR. The axial creep strain of overconsolidated specimens and normally consoli-dated specimens can be related with a simple power formulation using the parameter OCR. The undrained creep characteristics are similar un-der creep paths of axial loading the lateral unloading. However, the pore pressure response induced by lateral unloading creep that is closer to that measured in the excavation. |
本系統中英文摘要資訊取自各篇刊載內容。