基于累积损伤理论的土石坝地震永久变形分析
|
摘要
以龙冈的在不规则荷载作用下土体应变的累积损伤理论为基础,提出了基于累积损伤理论的土石坝地震永久变形分析方法。采用大型静力和动力三轴仪,对某土石坝筑坝材料的静动变形特性进行了试验研究,确定了筑坝材料的静力和动力应力应变关系、累积应变模型和相应的材料参数。利用该方法,分别对在日本2008年6月14日岩手—宫城内陆M7.2级地震作用下该土石坝的在建坝体和竣工后坝体的地震永久变形特性进行了研究。结果表明:在建坝体的坝内沉降计算值与现场实测值基本吻合,并且通过与其它土石坝实测值的比较,说明竣工后坝体的坝顶沉降预测值在合理范围之内。
Based on the Tatsuoka's cumulative damage theory of soil strains under irregular loadings,a numerical analysis method for the earthquake-induced permanent deformation of rockfill dams is proposed.The mechanical experiments of the rockfill materials are carried out by use of the large static and dynamic triaxial apparatus,and the material parameters related to the stress-strain relationship and cumulative strain model are determined.By use of the proposed method,the earthquake-induced permanent deformation characteristics of the rockfill dam under construction and after completion are studied respectively for the Iwate-Miyagi Nairiku earthquake of M7.2 on 14 June 2008 in Japan.The results show that the earthquake-induced settlement computed by the proposed method is basically consistent with the measured one under the construction of the dam.Moreover,the predicted value of the earthquake-induced settlement at the crest after the completion of the dam is within the reasonable range by comparison of the measured data of the other similar dams.
Based on the Tatsuoka's cumulative damage theory of soil strains under irregular loadings,a numerical analysis method for the earthquake-induced permanent deformation of rockfill dams is proposed.The mechanical experiments of the rockfill materials are carried out by use of the large static and dynamic triaxial apparatus,and the material parameters related to the stress-strain relationship and cumulative strain model are determined.By use of the proposed method,the earthquake-induced permanent deformation characteristics of the rockfill dam under construction and after completion are studied respectively for the Iwate-Miyagi Nairiku earthquake of M7.2 on 14 June 2008 in Japan.The results show that the earthquake-induced settlement computed by the proposed method is basically consistent with the measured one under the construction of the dam.Moreover,the predicted value of the earthquake-induced settlement at the crest after the completion of the dam is within the reasonable range by comparison of the measured data of the other similar dams.
引文
[1]NEWMARK N M.Effects of earthquakes on dams andembankments[J].Géotechnique,1965,15(2):139–160.
[2]SERFF N,SEED H B,MAKDISI F I,et al.Earthquakeinduced deformations of earth dams[R].Report No.EERC7624,Earthquake Engineering Research Centre,University ofCalifornia,Berkeley,1976.
[3]TANIGUCHI E,WHITMAN R V,MARR W A.Prediction ofearthquake induced deformation of earth dams[J].Soils andFoundations,1983,23(4):126–132.
[4]陈生水,沈珠江.钢筋混凝土面板坝的地震永久变形分析[J].岩土工程学报,1990,12(3):66–72.(CHEN Sheng-shui,SHEN Zhu-jiang.Analysis of earthquake-induceddeformation of reinforced-concrete face rock-fill dam[J].Chinese Journal of Geotechnical Engineering,1990,12(3):66–72.(in Chinese))
[5]KUWANO J,ISHIHARA K,HAYA H.Analysis onpermanent deformation of embankments caused byearthquakes[J].Soils and Foundations,1991,31(3):97-110.
[6]刘汉龙,陆兆溱,钱家欢.土石坝地震永久变形分析[J].河海大学学报,1996,24(1):91–96.(LIU Han-long,LUZhao-zhen,QIAN Jia-huan.Earthquake-induced permanentdeformation of earth-rock dams[J].Journal of HohaiUniversity,1996,24(1):91–96.(in Chinese))
[7]迟世春,林皋,孔宪京.堆石料残余体应变对计算面板堆石坝永久变形的影响[J].水力发电学报,1998,60(1):59–67.(CHI Shi-chun,LIN Gao,KONG Xian-jing.Influenceof residual volumetric strain of rock fill material oncalculated permanent deformation of concrete faced rockfilldams[J].Journal of Hydroelectric Engineering,1998,60(1):59–67.(in Chinese))
[8]崔娟,沈振中.高沥青混凝土心墙混合坝地震永久变形特性[J].水电能源科学,2010,28(1):73–76.(CUI Juan,SHEN Zhen-zhong.Characteristics of earthquake inducedpermanent deformation of a high composite dam with asphaltconcrete core wall[J].Water Resources and Power,2010,28(1):73–76.(in Chinese))
[9]赵剑明,刘小生,刘启旺,等.先期震动对土石坝地震永久变形的影响[J].世界地震工程,2011,27(1):28–33.(ZHAO Jian-ming,LIU Xiao-sheng,LIU Qi-wang,et al.Study on the effect of pre-vibration on earthquake-inducedpermanent deformation of an earth-rock fill dam[J].WorldEarthquake Engineering,2011,27(1):28–33.(in Chinese))
[10]邹德高,徐斌,孔宪京,等.基于广义塑性模型的高面板堆石坝静、动力分析[J].水力发电学报,2011,30(6):109–116.(ZOU De-gao,XU Bin,KONG Xian-jing,et al.Staticand dynamic analysis of high concrete-face rockfill dambased on generalized plastic model[J].Journal ofHydroelectric Engineering,2011,30(6):109–116.(inChinese))
[11]TATSUOKA F,MAEDA S,OCHI K.Prediction of cyclicundrained strength of sand subjected to irregular loadings[J].Soils and Foundations,1986,26(2):73–90.
[12]沈珠江,徐刚.堆石料的动力变形特性[J].水利水运科学研究,1996,6(2):143–150.(SHEN Zhu-jiang,XU Gang.Deformation behavior of rock material under cyclicloading[J].Hydro-Science and Engineering,1996,6(2):143–150.(in Chinese))
[13]王昆耀,常亚屏,陈宁.往返荷载下粗粒土的残余变形特性[J].土木工程学报,2000,33(3):48–53.(WANGKun-yao,CHANG Ya-ping,CHEN Ning.Residualdeformation characteristics of coarse-grained soils undercyclic loading[J].China Civil Engineering Journal,2000,33(3):48–53.(in Chinese))
[14]黄茂松,李进军,李兴照.饱和软黏土的不排水循环累积变形特性[J].岩土工程学报,2006,28(7):891–895.(HUANG Mao-song,LI Jin-jun,LI Xing-zhao.Cumulativedeformation behaviour of soft clay in cyclic undrainedtests[J].Chinese Journal of Geotechnical Engineering,2006,28(7):891–895.(in Chinese))
[15]邹德高,孟凡伟,孔宪京,等.堆石料残余变形特性研究[J].岩土工程学报,2008,30(6):807–812.(ZOU De-gao,MENG Fan-wei,KONG Xian-jing,et al.Residualdeformation behavior of rock-fill materials[J].ChineseJournal of Geotechnical Engineering,2008,30(6):807–812.(in Chinese))
[16]OHMACHI T,TAHARA T.Nonlinear earthquake responsecharacteristics of a central clay core rockfill dam[J].Soils andFoundations,2011,51(2):227–238.
[2]SERFF N,SEED H B,MAKDISI F I,et al.Earthquakeinduced deformations of earth dams[R].Report No.EERC7624,Earthquake Engineering Research Centre,University ofCalifornia,Berkeley,1976.
[3]TANIGUCHI E,WHITMAN R V,MARR W A.Prediction ofearthquake induced deformation of earth dams[J].Soils andFoundations,1983,23(4):126–132.
[4]陈生水,沈珠江.钢筋混凝土面板坝的地震永久变形分析[J].岩土工程学报,1990,12(3):66–72.(CHEN Sheng-shui,SHEN Zhu-jiang.Analysis of earthquake-induceddeformation of reinforced-concrete face rock-fill dam[J].Chinese Journal of Geotechnical Engineering,1990,12(3):66–72.(in Chinese))
[5]KUWANO J,ISHIHARA K,HAYA H.Analysis onpermanent deformation of embankments caused byearthquakes[J].Soils and Foundations,1991,31(3):97-110.
[6]刘汉龙,陆兆溱,钱家欢.土石坝地震永久变形分析[J].河海大学学报,1996,24(1):91–96.(LIU Han-long,LUZhao-zhen,QIAN Jia-huan.Earthquake-induced permanentdeformation of earth-rock dams[J].Journal of HohaiUniversity,1996,24(1):91–96.(in Chinese))
[7]迟世春,林皋,孔宪京.堆石料残余体应变对计算面板堆石坝永久变形的影响[J].水力发电学报,1998,60(1):59–67.(CHI Shi-chun,LIN Gao,KONG Xian-jing.Influenceof residual volumetric strain of rock fill material oncalculated permanent deformation of concrete faced rockfilldams[J].Journal of Hydroelectric Engineering,1998,60(1):59–67.(in Chinese))
[8]崔娟,沈振中.高沥青混凝土心墙混合坝地震永久变形特性[J].水电能源科学,2010,28(1):73–76.(CUI Juan,SHEN Zhen-zhong.Characteristics of earthquake inducedpermanent deformation of a high composite dam with asphaltconcrete core wall[J].Water Resources and Power,2010,28(1):73–76.(in Chinese))
[9]赵剑明,刘小生,刘启旺,等.先期震动对土石坝地震永久变形的影响[J].世界地震工程,2011,27(1):28–33.(ZHAO Jian-ming,LIU Xiao-sheng,LIU Qi-wang,et al.Study on the effect of pre-vibration on earthquake-inducedpermanent deformation of an earth-rock fill dam[J].WorldEarthquake Engineering,2011,27(1):28–33.(in Chinese))
[10]邹德高,徐斌,孔宪京,等.基于广义塑性模型的高面板堆石坝静、动力分析[J].水力发电学报,2011,30(6):109–116.(ZOU De-gao,XU Bin,KONG Xian-jing,et al.Staticand dynamic analysis of high concrete-face rockfill dambased on generalized plastic model[J].Journal ofHydroelectric Engineering,2011,30(6):109–116.(inChinese))
[11]TATSUOKA F,MAEDA S,OCHI K.Prediction of cyclicundrained strength of sand subjected to irregular loadings[J].Soils and Foundations,1986,26(2):73–90.
[12]沈珠江,徐刚.堆石料的动力变形特性[J].水利水运科学研究,1996,6(2):143–150.(SHEN Zhu-jiang,XU Gang.Deformation behavior of rock material under cyclicloading[J].Hydro-Science and Engineering,1996,6(2):143–150.(in Chinese))
[13]王昆耀,常亚屏,陈宁.往返荷载下粗粒土的残余变形特性[J].土木工程学报,2000,33(3):48–53.(WANGKun-yao,CHANG Ya-ping,CHEN Ning.Residualdeformation characteristics of coarse-grained soils undercyclic loading[J].China Civil Engineering Journal,2000,33(3):48–53.(in Chinese))
[14]黄茂松,李进军,李兴照.饱和软黏土的不排水循环累积变形特性[J].岩土工程学报,2006,28(7):891–895.(HUANG Mao-song,LI Jin-jun,LI Xing-zhao.Cumulativedeformation behaviour of soft clay in cyclic undrainedtests[J].Chinese Journal of Geotechnical Engineering,2006,28(7):891–895.(in Chinese))
[15]邹德高,孟凡伟,孔宪京,等.堆石料残余变形特性研究[J].岩土工程学报,2008,30(6):807–812.(ZOU De-gao,MENG Fan-wei,KONG Xian-jing,et al.Residualdeformation behavior of rock-fill materials[J].ChineseJournal of Geotechnical Engineering,2008,30(6):807–812.(in Chinese))
[16]OHMACHI T,TAHARA T.Nonlinear earthquake responsecharacteristics of a central clay core rockfill dam[J].Soils andFoundations,2011,51(2):227–238.
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