黄泛区饱和粉土动强度特性试验研究
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摘要
选取黄泛区滨德高速公路4组试样,其密度和黏粒含量各不相同。通过动三轴试验,研究了黄泛区饱和粉土的动强度特性,得出密实度和黏粒含量对动强度的影响规律。试验结果表明:在相同的黏粒含量、固结比和固结应力条件下,黄泛区粉土的动强度随着密实度的增大而增大;在相同的黏粒含量、干密度条件下,随着固结比的增大,黄泛区粉土的动强度有增大的趋势,但随着固结比的继续增大,动强度增大的幅度逐渐减小;在干密度相同时,动强度随着黏粒含量的增加呈增大的趋势。以上结论能够为今后公路工程中防治粉土液化提供重要的理论依据。
Four kinds of samples were obtained,and their density and content of clay were different from each other.The dynamic characteristics of saturated silt in the Yellow River flood area were studied.From the triaxial test results,it was showed that the dynamic strength of saturated silt was influenced by its density and content of clay.The dynamic strength increased with density when the content of clay、consolidation ratio and consolidation stress were the same.The dynamic strength increased with the consolidation ratio when the content of clay and dry density were the same.The dynamic strength increased with the content of clay when the dry density was the same.The conclusions provide an important theoretical basis for preventing liquefaction of silt in road construction.
Four kinds of samples were obtained,and their density and content of clay were different from each other.The dynamic characteristics of saturated silt in the Yellow River flood area were studied.From the triaxial test results,it was showed that the dynamic strength of saturated silt was influenced by its density and content of clay.The dynamic strength increased with density when the content of clay、consolidation ratio and consolidation stress were the same.The dynamic strength increased with the consolidation ratio when the content of clay and dry density were the same.The dynamic strength increased with the content of clay when the dry density was the same.The conclusions provide an important theoretical basis for preventing liquefaction of silt in road construction.
引文
[1]景立平,崔杰,李立云,等.徐州市棠张镇饱和粉土液化性能试验研究[J].地震工程与工程振动,2004,24(6):160-164.JING Liping,CUI Jie,LI Liyun,et al.Experimentalstudy of liquefaction behavior of saturated silt in Tang-zhang Town of Xuzhou City[J].Earthquake Engineeringand Engineering Vibration,2004,24(6):160-164.
[2]张建文,蒋关鲁,刘先峰.饱和粉土地基液化特性的振动台试验研究[J].路基工程,2006,128(5):84-86.ZHANG Jianwen,JIANG Guanlu,LIU Xianfeng.Shakingtable test of liquefiable behavior of saturated silty soilground[J].Subgrade Engineering,2006,128(5):84-86.
[3]龚晓南,熊传祥,项可祥,等.粘土结构性对其力学性质的影响及形成原因分析[J].水利学报,2000(10):43-47.GONG Xiaonan,XIONG Chuanxiang,XIANG Kexiang,et al.The formation of clay structure and its influence onmechanical characteristics of clay[J].Journal of Hydrau-lic Engineering,2000(10):43-47.
[4]黄博,陈云敏,殷建华,等.控制试样剪切模量的动三轴液化试验[J].岩土工程学报,2000,22(6):682-685.HUANG Bo,CHEN Yunmin,YIN Jianhua,et al.Cyclictriaxial tests with controlled elastic shear modulus of spec-imen[J].Journal of Geotechnical Engineering,2000,22(6):682-685.
[5]牛琪瑛,张素娇.地基土液化机理的研究[J].太原理工大学学报,2002,33(3):246-256.NIU Qiying,ZHANG Sujiao.Study on the mechanism ofliquefaction of foundation soil[J].Journal of Taiyuan U-niversity of Technology,2002,33(3):246-256.
[6]林霖.现代黄河水下三角洲粉土动力特性及液化破坏研究[D].青岛:中国海洋大学,2003.LIN Lin.Research on dynamic property and liquefactionrelated damages of silt in modern Yellow River SubmarineDelta[D].Qingdao:China Ocean University,2003.
[7]GALLAGHER P M,MITCHELL J K.Influence of colloi-dal silica grout on liquefaction potential and cyclic undr-ained behavior of loose sand[J].Soil Dynamics andEarthquake Engineering,2002,22(9-12):1017-1026.
[8]衡朝阳,何满潮,裘以惠.含黏粒砂土抗液化性能的试验研究[J].工程地质学报,2001,9(4):339-344.HENG Chaoyang,HE Manchao,QIU Yihui.Experimen-tal study of liquefaction-resistant characteristics of clayedsand[J].Journal of Engineering Geology,2001,9(4):339-334.
[9]SEED H B,TOKIMATSU K,HARDER L F,et al.In-fluence of SPT procedures in soil liquefaction resistance e-valuations[J].Journal of Geotechnical Engineering,ASCE,1985,111(12):1425-1445.
[10]阮永芬,巫志辉.饱和粉土的若干动力特性研究[J].岩土工程学报,1995,17(4):100-106.RUAN Yongfen,WU Zhihui.Some dynamic propertiesof saturated sandy soil[J].Chinese Journal of Geotechni-cal Engineering,1995,17(4):100-106.
[11]WIT P D,KRANENBURG C.The wave-induced lique-faction of cohesive sediment beds[J].Estuarine,Coastaland Shelf Estuarine,1997,45(2):261-271.
[12]TZANG S Y,OU S H.Laboratory flume study on mono-chromatic wave-fine sandy bed interactions[J].Soil Flu-idization Coastal Engineering,2006,53:965-982.
[13]汪闻韶.土的动力强度及液化特性[M].北京:建筑工业出版社,1996.
[14]张克绪,谢君斐.土动力学[M].北京:地震出版社,1989.
[15]曾长女,刘汉龙,周云东.粉土动力特性研究综述[J].防灾减灾工程学报,2005,25(1):99-104.ZENG Changn櫣,LIU Hanlong,ZHOU Yundong.Re-view of silty soil dynamic characteristics[J].Journal ofDisaster Preven and Mitigation Engineering,2005,25(1):99-104.
[2]张建文,蒋关鲁,刘先峰.饱和粉土地基液化特性的振动台试验研究[J].路基工程,2006,128(5):84-86.ZHANG Jianwen,JIANG Guanlu,LIU Xianfeng.Shakingtable test of liquefiable behavior of saturated silty soilground[J].Subgrade Engineering,2006,128(5):84-86.
[3]龚晓南,熊传祥,项可祥,等.粘土结构性对其力学性质的影响及形成原因分析[J].水利学报,2000(10):43-47.GONG Xiaonan,XIONG Chuanxiang,XIANG Kexiang,et al.The formation of clay structure and its influence onmechanical characteristics of clay[J].Journal of Hydrau-lic Engineering,2000(10):43-47.
[4]黄博,陈云敏,殷建华,等.控制试样剪切模量的动三轴液化试验[J].岩土工程学报,2000,22(6):682-685.HUANG Bo,CHEN Yunmin,YIN Jianhua,et al.Cyclictriaxial tests with controlled elastic shear modulus of spec-imen[J].Journal of Geotechnical Engineering,2000,22(6):682-685.
[5]牛琪瑛,张素娇.地基土液化机理的研究[J].太原理工大学学报,2002,33(3):246-256.NIU Qiying,ZHANG Sujiao.Study on the mechanism ofliquefaction of foundation soil[J].Journal of Taiyuan U-niversity of Technology,2002,33(3):246-256.
[6]林霖.现代黄河水下三角洲粉土动力特性及液化破坏研究[D].青岛:中国海洋大学,2003.LIN Lin.Research on dynamic property and liquefactionrelated damages of silt in modern Yellow River SubmarineDelta[D].Qingdao:China Ocean University,2003.
[7]GALLAGHER P M,MITCHELL J K.Influence of colloi-dal silica grout on liquefaction potential and cyclic undr-ained behavior of loose sand[J].Soil Dynamics andEarthquake Engineering,2002,22(9-12):1017-1026.
[8]衡朝阳,何满潮,裘以惠.含黏粒砂土抗液化性能的试验研究[J].工程地质学报,2001,9(4):339-344.HENG Chaoyang,HE Manchao,QIU Yihui.Experimen-tal study of liquefaction-resistant characteristics of clayedsand[J].Journal of Engineering Geology,2001,9(4):339-334.
[9]SEED H B,TOKIMATSU K,HARDER L F,et al.In-fluence of SPT procedures in soil liquefaction resistance e-valuations[J].Journal of Geotechnical Engineering,ASCE,1985,111(12):1425-1445.
[10]阮永芬,巫志辉.饱和粉土的若干动力特性研究[J].岩土工程学报,1995,17(4):100-106.RUAN Yongfen,WU Zhihui.Some dynamic propertiesof saturated sandy soil[J].Chinese Journal of Geotechni-cal Engineering,1995,17(4):100-106.
[11]WIT P D,KRANENBURG C.The wave-induced lique-faction of cohesive sediment beds[J].Estuarine,Coastaland Shelf Estuarine,1997,45(2):261-271.
[12]TZANG S Y,OU S H.Laboratory flume study on mono-chromatic wave-fine sandy bed interactions[J].Soil Flu-idization Coastal Engineering,2006,53:965-982.
[13]汪闻韶.土的动力强度及液化特性[M].北京:建筑工业出版社,1996.
[14]张克绪,谢君斐.土动力学[M].北京:地震出版社,1989.
[15]曾长女,刘汉龙,周云东.粉土动力特性研究综述[J].防灾减灾工程学报,2005,25(1):99-104.ZENG Changn櫣,LIU Hanlong,ZHOU Yundong.Re-view of silty soil dynamic characteristics[J].Journal ofDisaster Preven and Mitigation Engineering,2005,25(1):99-104.
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