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Dynamic property of polypropylene fiber improved fly ash soil
Author(s): LIU Han-bing, HE Yan, WEI Hai-bin, LIU Hao
Pages: 672-
675
Year: 2010
Issue:
3
Journal: Journal of Jilin University(Engineering and Technology Edition)
Abstract: 在大量动三轴试验的基础上,研究了用聚丙烯纤维改良粉煤灰土的动力特性.试验结果表明:在相同围压下,改良土的动强度大于粉煤灰土的动强度,且两者的动强度都随着荷载循环次数的增加而下降,随着围压的增加而变大.当围压增大时,改良土的动强度提高幅度要大于粉煤灰土.在高围压下,纤维对试件的动强度影响较大.改良土受动应变的影响比粉煤灰土小,比较稳定.动模量Ed随动应变εd增大而递减.动应变相同时,改良土的动模量要...
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