断层泥动剪切模量和阻尼比影响因素试验研究
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摘要
利用GDS共振柱试验系统对不同干密度、不同含水率的断层泥试样进行了动剪切模量和阻尼比试验研究。结果表明,使用Hardin-Drnevich双曲线模型能够较好地描述断层泥的动剪切模量随剪应变的变化趋势;随干密度增加,动剪切模量和阻尼比均增大;而随含水率增加,动剪切模量和阻尼比均减小;归一化动剪切模量试验点主要位于Seed和Idriss提出的砂土G/G_(max)~γ曲线变动范围内,且与Sun和Seed推荐黏性土曲线变化趋势一致;在半对数坐标系中,阻尼比与动剪应变呈良好的线性关系,并给出了拟合关系式。
Dynamic shear modulus and damping ratio test of fault gouge with different dry density values or water contents are performed using GDS resonant column system. The results show that the relationship between dynamic shear modulus and dynamic shear strain can be well fitted by Hardin-Drnevich hyperbolic model. The dynamic shear modulus and the damping ratio both increase with the dry density,while decrease with water content. Experimental points of normalized dynamic shear modulus are mainly located in the range of the G / Gmax~ γ curve of sand which is proposed by Seed and Idriss,and in accordance with the trend of cohesive soil which is proposed by Sun and Seed.The damping ratio changes linearly with the dynamic shear strain under semilog coordination. The fitting formula is suggested.
Dynamic shear modulus and damping ratio test of fault gouge with different dry density values or water contents are performed using GDS resonant column system. The results show that the relationship between dynamic shear modulus and dynamic shear strain can be well fitted by Hardin-Drnevich hyperbolic model. The dynamic shear modulus and the damping ratio both increase with the dry density,while decrease with water content. Experimental points of normalized dynamic shear modulus are mainly located in the range of the G / Gmax~ γ curve of sand which is proposed by Seed and Idriss,and in accordance with the trend of cohesive soil which is proposed by Sun and Seed.The damping ratio changes linearly with the dynamic shear strain under semilog coordination. The fitting formula is suggested.
引文
Chen G X,Xie J F,Zhang K X.1995.The emprical evaluation of soi moduli and damping ratio for dynamic anatysis[J].Earthquak Engineering and Engineering Vibration,15(1):73~84.
Fan G,Zhang J J,Fu X,et al.2015.Large-scale shaking table test o dynamic response of bedding rock slopes with slit intercalation[J]Chinese Journal of Rock Mechanics and Engineering,34(9)1750~1757.
He C R,Verberne B A,Spiers C J.2011.Frictional properties o sedimentary rocks and natural fault gouge from Longmenshan faul zone and their implications[J].Chinese Journal of Rock Mechanic and Engineering,30(1):113~131.
Huang Z Q,Li H Y,Ma S,et al.2004.Stability analysis and reliabilit evaluation of slope of block construction for rock mass[J].Chines Journal of Rock Mechanics and Engineering,23(24):4200~4205
Liu B,Nie D X.2006.Study on relation between strength parameter and water content of gouge[J].Chinese Journal of Geotechnica Engineering,28(12):2164~2167.
LüX F,Chen P X,Yang Y J,et al.2010.The resonant column test stud on marine silty clay[J].World Earthquake Engineering,26(S1)1~5.
Luo Y S,Tian K L.2005.Dynamic shear modulus and damping ratio o unsaturated loess[J].Journal of Hydraulic Engineering,36(7)830~834.
Seed HB,Idriss IM.1970.Soil moduli and damping factors for dynami response analyses[R].Berkeley.Earthquake Engineering Research Center,University of California.
Shao S M.1994.Present condition and progress of fault gouge[J]Earthquake Research in Plateau,6(3):51~56.
Sun JI,Golesorkhi R,Seed HB.1988.Dynamic moduli and dampin ratios for cohesive soils[M].Earthquake Engineering Research Center,University of California.
Wu Z Q,Cao J J,Lin P W,et al.2015.XRD study on deep-seated faul gouge in Dongsheng-miao polymetallic pyrite deposit,Inne Mongolia[J].China Mining Magazine,24(4):77~82.
Xie D Y.2011.Soil dynamics[M].Beijing:High Education Press.
Zhang L,He C R.2014.Frictional properties of clay minerals and thei effect on fault behavior[J].Progress in Geophysics,29(2):620~629.
Zhou R G,Cheng B F,Gao Y S,et al.1998.Relationship between creep behavior of fault gouge and its water contents[J].Journal o Engineering Geology,6(3):217~222.
陈国兴,谢君斐,张克绪.1995.土的动模量和阻尼比的经验估计[J].地震工程与工程振动,15(1):73~84.
范刚,张建经,付晓,等.2015.含泥化夹层顺层岩质边坡动力响应大型振动台试验研究[J].岩石力学与工程学报,34(9):1750~1757.
何昌荣,Verberne B A,Spiers C J.2011.龙门山断裂带沉积岩和天然断层泥的摩擦滑动性质与启示[J].岩石力学与工程学报,3(1):113~131.
黄志全,李华晔,马莎,等.2004.岩石边坡块状结构岩体稳定性分析和可靠性评价[J].岩石力学与工程学报,23(24):4200~4205.
刘彬,聂德新.2006.断层泥强度参数与含水率关系研究[J].岩土工程学报,28(12):2164~2167.
吕小飞,陈培雄,杨义菊,等.2010.海洋粉质黏土共振柱试验研究[J].世界地震工程,26(S1):1~5.
骆亚生,田堪良.2005.非饱和黄土的动剪模量与阻尼比[J].水利学报,36(7):830~834.
邵顺妹.1994.断层泥研究的现状和进展[J].高原地震,6(3):51~56.
吴政权,曹建劲,林鹏威,等.2015.内蒙古东升庙多金属硫铁矿床深部断层泥XRD分析及其意义[J].中国矿业,24(4):77~82.
谢定义.2011.土动力学[M].北京:高等教育出版社.
张雷,何昌荣.2014.黏土矿物的摩擦滑动特性及对断层力学性质的影响[J].地球物理学进展,29(2):620~629.
周瑞光,成彬芳,高玉生,等.1998.断层泥蠕变特性与含水量的关系研究[J].工程地质学报,6(3):217~222.
Fan G,Zhang J J,Fu X,et al.2015.Large-scale shaking table test o dynamic response of bedding rock slopes with slit intercalation[J]Chinese Journal of Rock Mechanics and Engineering,34(9)1750~1757.
He C R,Verberne B A,Spiers C J.2011.Frictional properties o sedimentary rocks and natural fault gouge from Longmenshan faul zone and their implications[J].Chinese Journal of Rock Mechanic and Engineering,30(1):113~131.
Huang Z Q,Li H Y,Ma S,et al.2004.Stability analysis and reliabilit evaluation of slope of block construction for rock mass[J].Chines Journal of Rock Mechanics and Engineering,23(24):4200~4205
Liu B,Nie D X.2006.Study on relation between strength parameter and water content of gouge[J].Chinese Journal of Geotechnica Engineering,28(12):2164~2167.
LüX F,Chen P X,Yang Y J,et al.2010.The resonant column test stud on marine silty clay[J].World Earthquake Engineering,26(S1)1~5.
Luo Y S,Tian K L.2005.Dynamic shear modulus and damping ratio o unsaturated loess[J].Journal of Hydraulic Engineering,36(7)830~834.
Seed HB,Idriss IM.1970.Soil moduli and damping factors for dynami response analyses[R].Berkeley.Earthquake Engineering Research Center,University of California.
Shao S M.1994.Present condition and progress of fault gouge[J]Earthquake Research in Plateau,6(3):51~56.
Sun JI,Golesorkhi R,Seed HB.1988.Dynamic moduli and dampin ratios for cohesive soils[M].Earthquake Engineering Research Center,University of California.
Wu Z Q,Cao J J,Lin P W,et al.2015.XRD study on deep-seated faul gouge in Dongsheng-miao polymetallic pyrite deposit,Inne Mongolia[J].China Mining Magazine,24(4):77~82.
Xie D Y.2011.Soil dynamics[M].Beijing:High Education Press.
Zhang L,He C R.2014.Frictional properties of clay minerals and thei effect on fault behavior[J].Progress in Geophysics,29(2):620~629.
Zhou R G,Cheng B F,Gao Y S,et al.1998.Relationship between creep behavior of fault gouge and its water contents[J].Journal o Engineering Geology,6(3):217~222.
陈国兴,谢君斐,张克绪.1995.土的动模量和阻尼比的经验估计[J].地震工程与工程振动,15(1):73~84.
范刚,张建经,付晓,等.2015.含泥化夹层顺层岩质边坡动力响应大型振动台试验研究[J].岩石力学与工程学报,34(9):1750~1757.
何昌荣,Verberne B A,Spiers C J.2011.龙门山断裂带沉积岩和天然断层泥的摩擦滑动性质与启示[J].岩石力学与工程学报,3(1):113~131.
黄志全,李华晔,马莎,等.2004.岩石边坡块状结构岩体稳定性分析和可靠性评价[J].岩石力学与工程学报,23(24):4200~4205.
刘彬,聂德新.2006.断层泥强度参数与含水率关系研究[J].岩土工程学报,28(12):2164~2167.
吕小飞,陈培雄,杨义菊,等.2010.海洋粉质黏土共振柱试验研究[J].世界地震工程,26(S1):1~5.
骆亚生,田堪良.2005.非饱和黄土的动剪模量与阻尼比[J].水利学报,36(7):830~834.
邵顺妹.1994.断层泥研究的现状和进展[J].高原地震,6(3):51~56.
吴政权,曹建劲,林鹏威,等.2015.内蒙古东升庙多金属硫铁矿床深部断层泥XRD分析及其意义[J].中国矿业,24(4):77~82.
谢定义.2011.土动力学[M].北京:高等教育出版社.
张雷,何昌荣.2014.黏土矿物的摩擦滑动特性及对断层力学性质的影响[J].地球物理学进展,29(2):620~629.
周瑞光,成彬芳,高玉生,等.1998.断层泥蠕变特性与含水量的关系研究[J].工程地质学报,6(3):217~222.