等应力比路径下粗粒土湿化试验研究
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摘要
采用古水面板坝玄武岩堆石料进行了等应力比路径下的粗粒土湿化试验。试验结果表明,在等应力比路径下的土体的湿化变形不仅受应力状态的影响还受加载应力路径的影响。在传统湿化变形公式中引入应力路径参量,并采用体积应力和参考应力水平描述应力状态对湿化变形的影响,建立了等应力比路径下的湿化变形公式。所建立的湿化变形公式能够很好地描述等应力比路径下的粗粒土湿化变形。
The wetting tests of coarse-grained soil under the equal stress ratio path are performed using the basalt rockfill of Gushui concrete face rockfill dam. The tests results show that the wetting deformation of soil under equal stress ratio path is affected by stress state and loading stress path. The stress path is added in the traditional wetting deformation formula, and the volumetric stress and reference stress level are used to simulate the influences of stress state on the wetting deformation. A formula for the wetting deformation under equal stress ratio path is developed. The developed formula can accurately simulate the wetting deformation of the coarse-grained soil under equal stress ratio path.
The wetting tests of coarse-grained soil under the equal stress ratio path are performed using the basalt rockfill of Gushui concrete face rockfill dam. The tests results show that the wetting deformation of soil under equal stress ratio path is affected by stress state and loading stress path. The stress path is added in the traditional wetting deformation formula, and the volumetric stress and reference stress level are used to simulate the influences of stress state on the wetting deformation. A formula for the wetting deformation under equal stress ratio path is developed. The developed formula can accurately simulate the wetting deformation of the coarse-grained soil under equal stress ratio path.
引文
[1]华东水利学院.土石坝工程[M].北京:水利水电出版社,1978.(East China Institute of Water Resources.Embankment dam[M].Beijing:Water conservancy and Hydropower Press,1978.(in Chinese))
[2]陈明致,金来鋆.堆石坝设计[M].北京:水利出版社,1982.(CHEN Ming-zhi,JIN Lai-yun.Rockfill dam design[M].Beijing:Water Conservancy Press,1982.(in Chinese))
[3]郦能惠.密云水库走马庄副坝裂缝原因分析[R].北京:清华大学,1965.(LI Neng-hui.Analysis on the causes of cracks in the secondary dam of Miyun Reservoir[R].Beijing:Tsinghua University,1965.(in Chinese))
[4]李志烈.土石坝初次蓄水的湿陷问题研究[D].北京:清华大学,1986.(LI Zhi-lie.Study on collapsibility of earth rock dam during initial impoundment[D].Beijing:Tsinghua University,1986.(in Chinese))
[5]李鹏,李振,刘金禹.粗粒料的大型高压三轴湿化试验研究[J].岩石力学与工程学报,2004,23(2):231-234.(LI Peng,LI Zhen,LIU Jin-yu.Slaking test study of coarse aggregate under high triaxial stress condition[J].Chinese Journal of Rock Mechanics and Engineering,2004,23(2):231-234.(in Chinese))
[6]魏松,朱俊高.粗粒土料湿化变形三轴实验研究[J].岩土力学,2007,28(8):1609-1614.(WEI Song,ZHU Jun-gao.Study on wetting behavior of coarse-grained soil in triaxial test[J].Rock and Soil Mechanics,2007,28(8):1609-1614.(in Chinese))
[7]魏松,朱俊高.粗粒料三轴湿化颗粒破碎研究实验[J].岩石力学与工程学报,2006,25(6):1152-1158.(WEI Song,ZHU Jun-gao.Study on wetting breakage of coarse-grained materials in triaxial test[J].Chinese Journal of Rock Mechanics and Engineering.2006,25(6):1252-1258.(in Chinese))
[8]张丙印,吕明治,高莲士.粗粒土大型三轴试验中橡皮膜嵌入量对体变的影响及校正[J].水利水电技术,2003,34(2):30-33.(ZHANG Bing-yin,LüMin-zhi,GAOLian-shi.Correction of membrane penetration in large-scale triaxial tests for granular materials[J].Water Resources and Hydropower Engineering,2003,34(2):30-33.(in Chinese))
[9]古兴伟,沈蓉,张永全.复杂应力路径下糯扎渡堆石料应力-应变特征研究[J].岩石力学与工程学报,2008,27(1):3251-3260.(GU Xing-wei,SHEN Rong,ZHANGYong-quan.Study on stress-strain properties of rockfill materials under different stress paths in Nuozhadu project[J].Chinese Journal of Rock Mechanics and Engineering,2008,27(1):3251-3260.(in Chinese))
[10]杨光,张丙印,于玉贞,等.不同应力路径下粗粒料的颗粒破碎试验研究[J].水利学报,2010,41(3):338-342.(YANG Guang,ZHANG Bing-yin,YU Yu-zhen,et al.An experimental study on particle breakage of coarse-grained materials under various stress paths[J].Journal of Hydraulic Engineering,2010,41(3):338-342.(in Chinese))
[11]王远,张胜,敖大华,等.复杂应力路径下堆石料的颗粒破碎特性研究[J].岩土工程学报,2018,40(4):668-706.(WANG Yuan,ZHANG Sheng,AO Da-hua,et al.Particle breakage characteristics of rockfills under complex stress paths[J].Chinese Journal of Geotechnical Engineering,2018,40(4):668-706.(in Chinese))
[12]李广信.堆石料的湿化试验和数学模型[J].岩土工程学报,1990,12(5):58-64.(LI Guang-xin.Slaking test and mathematical model of rockfill materials[J].Chinese Journal of Geotechnical Engineering,1990,12(5):58-64.(in Chinese))
[13]缪林昌,殷宗泽.非饱和土的剪切强度[J].岩土力学,1999,20(3):1-6.(MIAO Lin-chang,YIN Zong-ze.Shear strength of unsaturated soils[J].Rock and Soil Mechanics,1999,20(3):1-6.(in Chinese))
[14]沈珠江.坝料土的应力应变关系及其测定方法的初步研究[R].南京:南京水利科学研究院,1985.(SHENZhu-jiang.Preliminary research on the stress-strain relationship of dam material soil and its determination[R].Nanjing:Nanjing Hydraulic Research Institute,1985.(in Chinese))
[15]明经平,赵维炳.粉煤灰湿陷变形的三轴试验和计算[J].岩土力学,2004,25(增刊):32-38.(MING Jing-ping,ZHAO Wei-bing.Triaxial test and calculation about collapsibility deformation of coal ash[J].Rock and Soil Mechanics,2004,25(S0):32-38.(in Chinese))
[16]魏松.粗粒土浸水湿化变形特性试验及其数值模型研究[D].南京:河海大学,2006.(WEI Song.Study on wetting deformation behaviour and numerical model of coarsegrained materials[D].Nanjing:Hohai University,2006.(in Chinese))
[17]SL237-1999土工试验规程[S].1999.(SL237-1999Specification of soil test[S].1999.(in Chinese))
[18]李国英,王禄仕,米占宽.土质心墙堆石坝应力和变形研究[J].岩石力学与工程学报,2004,23(8):1363-1369.(LIGuo-ying,WANG Lu-shi,MI Zhan-kuang.Research on stress-strain behaviour of soil core rockfilldam[J].Chinese Journal of Rock Mechanics and Engineering,2004,23(8):1363-1369.(in Chinese))
[19]傅华,韩华强,赵晓菊.堆石料湿化变形特性试验研究[J].水利与建筑工程学报,2010,8(6):50-53.(FU Hua,HAN Hua-qiang,ZHAO Xiao-ju.Experimental study on slaking deformation properties of rockfill[J].Journal of Water Resources and Architectural Engineering,2010,8(6):50-53.(in Chinese))
[20]相彪.筑坝堆石料应力路径本构关系研究[D].大连:大连理工大学,2009.(XIANG Biao.Study on constitutive relations of dam rockfill considering the effect of stress path[D].Dalian:Dalian University of Technology,2009.(in Chinese))
[2]陈明致,金来鋆.堆石坝设计[M].北京:水利出版社,1982.(CHEN Ming-zhi,JIN Lai-yun.Rockfill dam design[M].Beijing:Water Conservancy Press,1982.(in Chinese))
[3]郦能惠.密云水库走马庄副坝裂缝原因分析[R].北京:清华大学,1965.(LI Neng-hui.Analysis on the causes of cracks in the secondary dam of Miyun Reservoir[R].Beijing:Tsinghua University,1965.(in Chinese))
[4]李志烈.土石坝初次蓄水的湿陷问题研究[D].北京:清华大学,1986.(LI Zhi-lie.Study on collapsibility of earth rock dam during initial impoundment[D].Beijing:Tsinghua University,1986.(in Chinese))
[5]李鹏,李振,刘金禹.粗粒料的大型高压三轴湿化试验研究[J].岩石力学与工程学报,2004,23(2):231-234.(LI Peng,LI Zhen,LIU Jin-yu.Slaking test study of coarse aggregate under high triaxial stress condition[J].Chinese Journal of Rock Mechanics and Engineering,2004,23(2):231-234.(in Chinese))
[6]魏松,朱俊高.粗粒土料湿化变形三轴实验研究[J].岩土力学,2007,28(8):1609-1614.(WEI Song,ZHU Jun-gao.Study on wetting behavior of coarse-grained soil in triaxial test[J].Rock and Soil Mechanics,2007,28(8):1609-1614.(in Chinese))
[7]魏松,朱俊高.粗粒料三轴湿化颗粒破碎研究实验[J].岩石力学与工程学报,2006,25(6):1152-1158.(WEI Song,ZHU Jun-gao.Study on wetting breakage of coarse-grained materials in triaxial test[J].Chinese Journal of Rock Mechanics and Engineering.2006,25(6):1252-1258.(in Chinese))
[8]张丙印,吕明治,高莲士.粗粒土大型三轴试验中橡皮膜嵌入量对体变的影响及校正[J].水利水电技术,2003,34(2):30-33.(ZHANG Bing-yin,LüMin-zhi,GAOLian-shi.Correction of membrane penetration in large-scale triaxial tests for granular materials[J].Water Resources and Hydropower Engineering,2003,34(2):30-33.(in Chinese))
[9]古兴伟,沈蓉,张永全.复杂应力路径下糯扎渡堆石料应力-应变特征研究[J].岩石力学与工程学报,2008,27(1):3251-3260.(GU Xing-wei,SHEN Rong,ZHANGYong-quan.Study on stress-strain properties of rockfill materials under different stress paths in Nuozhadu project[J].Chinese Journal of Rock Mechanics and Engineering,2008,27(1):3251-3260.(in Chinese))
[10]杨光,张丙印,于玉贞,等.不同应力路径下粗粒料的颗粒破碎试验研究[J].水利学报,2010,41(3):338-342.(YANG Guang,ZHANG Bing-yin,YU Yu-zhen,et al.An experimental study on particle breakage of coarse-grained materials under various stress paths[J].Journal of Hydraulic Engineering,2010,41(3):338-342.(in Chinese))
[11]王远,张胜,敖大华,等.复杂应力路径下堆石料的颗粒破碎特性研究[J].岩土工程学报,2018,40(4):668-706.(WANG Yuan,ZHANG Sheng,AO Da-hua,et al.Particle breakage characteristics of rockfills under complex stress paths[J].Chinese Journal of Geotechnical Engineering,2018,40(4):668-706.(in Chinese))
[12]李广信.堆石料的湿化试验和数学模型[J].岩土工程学报,1990,12(5):58-64.(LI Guang-xin.Slaking test and mathematical model of rockfill materials[J].Chinese Journal of Geotechnical Engineering,1990,12(5):58-64.(in Chinese))
[13]缪林昌,殷宗泽.非饱和土的剪切强度[J].岩土力学,1999,20(3):1-6.(MIAO Lin-chang,YIN Zong-ze.Shear strength of unsaturated soils[J].Rock and Soil Mechanics,1999,20(3):1-6.(in Chinese))
[14]沈珠江.坝料土的应力应变关系及其测定方法的初步研究[R].南京:南京水利科学研究院,1985.(SHENZhu-jiang.Preliminary research on the stress-strain relationship of dam material soil and its determination[R].Nanjing:Nanjing Hydraulic Research Institute,1985.(in Chinese))
[15]明经平,赵维炳.粉煤灰湿陷变形的三轴试验和计算[J].岩土力学,2004,25(增刊):32-38.(MING Jing-ping,ZHAO Wei-bing.Triaxial test and calculation about collapsibility deformation of coal ash[J].Rock and Soil Mechanics,2004,25(S0):32-38.(in Chinese))
[16]魏松.粗粒土浸水湿化变形特性试验及其数值模型研究[D].南京:河海大学,2006.(WEI Song.Study on wetting deformation behaviour and numerical model of coarsegrained materials[D].Nanjing:Hohai University,2006.(in Chinese))
[17]SL237-1999土工试验规程[S].1999.(SL237-1999Specification of soil test[S].1999.(in Chinese))
[18]李国英,王禄仕,米占宽.土质心墙堆石坝应力和变形研究[J].岩石力学与工程学报,2004,23(8):1363-1369.(LIGuo-ying,WANG Lu-shi,MI Zhan-kuang.Research on stress-strain behaviour of soil core rockfilldam[J].Chinese Journal of Rock Mechanics and Engineering,2004,23(8):1363-1369.(in Chinese))
[19]傅华,韩华强,赵晓菊.堆石料湿化变形特性试验研究[J].水利与建筑工程学报,2010,8(6):50-53.(FU Hua,HAN Hua-qiang,ZHAO Xiao-ju.Experimental study on slaking deformation properties of rockfill[J].Journal of Water Resources and Architectural Engineering,2010,8(6):50-53.(in Chinese))
[20]相彪.筑坝堆石料应力路径本构关系研究[D].大连:大连理工大学,2009.(XIANG Biao.Study on constitutive relations of dam rockfill considering the effect of stress path[D].Dalian:Dalian University of Technology,2009.(in Chinese))