砂土的稳态强度固结不排水三轴试验研究
|
摘要
稳态强度理论在土工抗震研究中具有重要意义。介绍了稳态强度理论的基本概念、稳态强度的固结不排水剪切试验方法及试验结果;论证了稳态线的存在性和唯一性;推求了e-p′-q空间内的稳态线方程,揭示了稳态内摩擦角是土体变形最终可动用的有效内摩擦角的物理含义,同时得到了由围压σ3、相对密度Dr确定稳态强度qss的方法。
The steady state strength theory is significant in earth structure aseismatic study. The steady state strength concepts,the consolidated-undrained triaxial shear test method and the test results are introduced. From the test and analysis,the existence and uniqueness of steady state line are demonstrated;and the steady state line equations are derived. An approach to determining the steady state strength qss from consolidation pressure σ3 and relative density Dr is presented;and the physical implication of steady state friction angle is revealed.
The steady state strength theory is significant in earth structure aseismatic study. The steady state strength concepts,the consolidated-undrained triaxial shear test method and the test results are introduced. From the test and analysis,the existence and uniqueness of steady state line are demonstrated;and the steady state line equations are derived. An approach to determining the steady state strength qss from consolidation pressure σ3 and relative density Dr is presented;and the physical implication of steady state friction angle is revealed.
引文
[1]Gu W H,Morgenstern N R,Robertson P K.Progressive failure of lower San Fernando dam[J].J.Geotech.Engrg.,ASCE,1993,119(2):333–349.
[2]Ishihara K,Yasuda S,Yoshida Y.Liquefaction-induced flow failure of embankments and residual strength of silty sands[J].Soils and Foundations,1990,30(3):69–80.
[3]高军伟,王洪瑾,周克骥,等.用稳态理论研究尾矿坝的抗震稳定性[A].第四届全国土动力学学术会议论文集[C].杭州:[s.n.],1994.43–46.(Gao Junwei,Wang Hongjin,Zhou Keji,et al.Seismic slope stability analysis of tailing dam using steady state[A].In:Proceedings of the4th Chinese Soil Dynamic Mechanics[C].Hangzhou:[s.n.],1994.43–46.(in Chinese))
[4]朱俊高,俞炯奇,姜朴.松砂液化后液化区渐进扩散的计算方法初探[J].水利学报,1998,(9):52–56.(Zhu Jungao,Yu Jiongqi,Jiang Pu.A numerical method for post liquefaction diffusion of liquefied zone in loose sand[J].Journal of Hydraulic Engineering,1998,(9):52–56.(in Chinese))
[5]王媛,姜朴,朱俊高,等.松粉砂地基地震后堤坝稳定性分析[J].水利学报,2000,(11):60–69.(Wang Yuan,Jiang Pu,Zhu Jungao,et al.Post-earthquake stability analysis of dike built on silty sand foundation[J].Journal of Hydraulic Engineering,2000,(11):60–69.(in Chinese))
[6]Ishihara K.Evaluation of residual strength of sandy soils[A].In:XIII ICSMFE[C].New Delhi,India:[s.n.],1994.175–181.
[7]Poulos S J.The steady state of deformation[J].J.Geotech.Engrg.Div.,ASCE,1981,107(5):553–562.
[8]Poulos S J,Castro G,France J W.Liquefaction evaluation procedure[J].J.Geotech.Engrg.,ASCE,1985,111(6):722–792.
[9]汪闻韶.土的动力强度和液化特性[M].北京:中国电力出版社,1997.(Wang Wenshao.Soil Dynamic Strength and Liquefaction Property[M].Beijing:China Electric Power Press,1997.(in Chinese))
[10]Castro G.Liquefaction and cyclic mobility of saturation sands[J].J.Geotech.Engrg.Div.,ASCE,1975,101(GT6):551–569.
[11]Castro G,Poulos S J.Factors affecting liquefaction and cyclic mobility[J].J.Geotech.Engrg.Div.,ASCE,1977,103(GT6):501–516.
[12]Verdugo R,Ishihara K.The steady state of sandy soils[J].Soils and Foundations,1996,36(2):81–91.
[13]Vaid Y P,Chung E K F,Keurbis R H.Stress path and steady state[J].J.Can.Geotech.,1990,27(1):1–7.
[14]Ishihara K.Liquefaction and flow failure during earthquakes[J].Geotechnique,1993,43(3):351–415.
[15]余湘娟,姜朴,魏松.砂土的稳态强度试验研究[J].河海大学学报,2001,29(1):50–54.(Yu Xiangjuan,Jiang Pu,Wei Song.Experimental research on the steady strength of sandy soils[J].Journal of Hohai University,2001,29(1):50–54.(in Chinese))
[16]中华人民共和国行业标准编写组.土工试验规程(SL237–1999)[S].北京:中国水利水电出版社,1999.(The Professional Standards Compilation Group of People′s Republic of China.Specification of Soil Test(SL237–1999)[S].Beijing:China Water Power Press,1999.(in Chinese))
[17]Zhang H M,Vinod K G.Quasi-steady state:A real behaviour?[J].J.Can.Geotech.,1997,34(5):749–761.
[18]Law K T,Lee C F,Luan M T,et al.Engineering behaviour of loose fill of granitic soil[A].In:Proceedings of the Special Sino-Japanese Forum on Performance and Evaluation of Soil Slopes under Earthquakes and Rainstorms[C].Dalian:Dalian University of Technology Press,1998.18–34.
[19]陈尧中,曾清祥.砂土状态参数与液化阻抗之研究[J].中国土木水利工程学刊,1998,10(1):139–144(Chen Yaochung,Ching-Hsiang Tseng.State parameters and liquefaction resistance of sand[J].Journal of the Chinese Institute of Civil and Hydraulic Engineering,1998,10(1):139–144.(in Chinese))
[20]赵成刚,尤昌龙.饱和砂土液化与稳态强度[J].土木工程学报,2001,34(3):90–96.(Zhao Chenggang,You Changlong.Liquefaction and steady state strength[J].China Civil Engineering Journal,2001,34(3):90–96.(in Chinese))
[21]蒋彭年.土的本构关系[M].北京:科学出版社,1982.(Jiang Pengnian.Soil Constitutive Relation[M].Beijing:Science Press,1982.(in Chinese))
[2]Ishihara K,Yasuda S,Yoshida Y.Liquefaction-induced flow failure of embankments and residual strength of silty sands[J].Soils and Foundations,1990,30(3):69–80.
[3]高军伟,王洪瑾,周克骥,等.用稳态理论研究尾矿坝的抗震稳定性[A].第四届全国土动力学学术会议论文集[C].杭州:[s.n.],1994.43–46.(Gao Junwei,Wang Hongjin,Zhou Keji,et al.Seismic slope stability analysis of tailing dam using steady state[A].In:Proceedings of the4th Chinese Soil Dynamic Mechanics[C].Hangzhou:[s.n.],1994.43–46.(in Chinese))
[4]朱俊高,俞炯奇,姜朴.松砂液化后液化区渐进扩散的计算方法初探[J].水利学报,1998,(9):52–56.(Zhu Jungao,Yu Jiongqi,Jiang Pu.A numerical method for post liquefaction diffusion of liquefied zone in loose sand[J].Journal of Hydraulic Engineering,1998,(9):52–56.(in Chinese))
[5]王媛,姜朴,朱俊高,等.松粉砂地基地震后堤坝稳定性分析[J].水利学报,2000,(11):60–69.(Wang Yuan,Jiang Pu,Zhu Jungao,et al.Post-earthquake stability analysis of dike built on silty sand foundation[J].Journal of Hydraulic Engineering,2000,(11):60–69.(in Chinese))
[6]Ishihara K.Evaluation of residual strength of sandy soils[A].In:XIII ICSMFE[C].New Delhi,India:[s.n.],1994.175–181.
[7]Poulos S J.The steady state of deformation[J].J.Geotech.Engrg.Div.,ASCE,1981,107(5):553–562.
[8]Poulos S J,Castro G,France J W.Liquefaction evaluation procedure[J].J.Geotech.Engrg.,ASCE,1985,111(6):722–792.
[9]汪闻韶.土的动力强度和液化特性[M].北京:中国电力出版社,1997.(Wang Wenshao.Soil Dynamic Strength and Liquefaction Property[M].Beijing:China Electric Power Press,1997.(in Chinese))
[10]Castro G.Liquefaction and cyclic mobility of saturation sands[J].J.Geotech.Engrg.Div.,ASCE,1975,101(GT6):551–569.
[11]Castro G,Poulos S J.Factors affecting liquefaction and cyclic mobility[J].J.Geotech.Engrg.Div.,ASCE,1977,103(GT6):501–516.
[12]Verdugo R,Ishihara K.The steady state of sandy soils[J].Soils and Foundations,1996,36(2):81–91.
[13]Vaid Y P,Chung E K F,Keurbis R H.Stress path and steady state[J].J.Can.Geotech.,1990,27(1):1–7.
[14]Ishihara K.Liquefaction and flow failure during earthquakes[J].Geotechnique,1993,43(3):351–415.
[15]余湘娟,姜朴,魏松.砂土的稳态强度试验研究[J].河海大学学报,2001,29(1):50–54.(Yu Xiangjuan,Jiang Pu,Wei Song.Experimental research on the steady strength of sandy soils[J].Journal of Hohai University,2001,29(1):50–54.(in Chinese))
[16]中华人民共和国行业标准编写组.土工试验规程(SL237–1999)[S].北京:中国水利水电出版社,1999.(The Professional Standards Compilation Group of People′s Republic of China.Specification of Soil Test(SL237–1999)[S].Beijing:China Water Power Press,1999.(in Chinese))
[17]Zhang H M,Vinod K G.Quasi-steady state:A real behaviour?[J].J.Can.Geotech.,1997,34(5):749–761.
[18]Law K T,Lee C F,Luan M T,et al.Engineering behaviour of loose fill of granitic soil[A].In:Proceedings of the Special Sino-Japanese Forum on Performance and Evaluation of Soil Slopes under Earthquakes and Rainstorms[C].Dalian:Dalian University of Technology Press,1998.18–34.
[19]陈尧中,曾清祥.砂土状态参数与液化阻抗之研究[J].中国土木水利工程学刊,1998,10(1):139–144(Chen Yaochung,Ching-Hsiang Tseng.State parameters and liquefaction resistance of sand[J].Journal of the Chinese Institute of Civil and Hydraulic Engineering,1998,10(1):139–144.(in Chinese))
[20]赵成刚,尤昌龙.饱和砂土液化与稳态强度[J].土木工程学报,2001,34(3):90–96.(Zhao Chenggang,You Changlong.Liquefaction and steady state strength[J].China Civil Engineering Journal,2001,34(3):90–96.(in Chinese))
[21]蒋彭年.土的本构关系[M].北京:科学出版社,1982.(Jiang Pengnian.Soil Constitutive Relation[M].Beijing:Science Press,1982.(in Chinese))
版权所有：© 2023 中国地质图书馆 中国地质调查局地学文献中心