某板岩粗粒料湿化特性三轴试验研究

朱俊高; MohamedA.ALsakran; 龚选; 轩向阳; 吉恩跃

某板岩粗粒料湿化特性三轴试验研究 English Version

1. 河海大学岩土力学与堤坝工程教育部重点实验室，江苏南京 210098;
2. 河海大学岩土工程科学研究所，江苏南京 210098

基金项目: 高等学校学科创新引智计划资助（B13024）；高等学校博士学科点专项科研基金（20110094110002）；住房和城乡建设部科学技术计划项目（2012-K3-9）

详细信息

作者简介:
朱俊高(1964- )，男，博士，教授，主要从事土体基本性质与本构模型、土石坝工程研究方面的研究。E-mail: zhujungao@hhu.edu.cn。

中图分类号: TU411
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出版历程
- 收稿日期: 2012-04-25
- 发布日期: 2013-01-31

Triaxial tests on wetting deformation behavior of a slate rockfill material

1. Key Laboratory of Ministry of Education for Geomechanics and Embankment Engineering, Hohai University, Nanjing 210098, China;
2. Geotechnical Research Institute, Hohai University, Nanjing 210098, China

摘要

摘要: 对某板岩粗粒料进行了大型三轴湿化变形试验，分析了湿化体积应变、湿化剪应变等随围压、应力水平变化关系。试验结果表明：湿化体积应变、湿化剪应变随着围压增大或应力水平的提高而增大。利用试验结果研究了沈珠江湿化变形模型对试验所用的板岩粗粒料的适用性。结果显示，沈珠江模型不能满意地反映湿化体积应变，但是，能较好地反映湿化剪应变与应力状态的关系。分析湿化后剪切强度性质，发现不同应力水平下湿化对粗粒土的强度指标影响很小。
- 湿化变形 /
- 大型三轴试验 /
- 强度指标 /
- 沈珠江模型
Abstract: A number of large-scale triaxial tests are performed to investigate the wetting deformation behavior of a slate rockfill material. The relationship among wetting volumetric strain, shear strain, confining pressure and stress level is analyzed. The test results show that the wetting volumetric strain and the shear strain increase with the increase of both the confining pressure and the stress level. Using the test results, the applicability of Shen's wetting deformation model is verified for the test soil. It is found that Shen’s wetting deformation model can not satisfactorily reflect the wetting volumetric strain, but it can suitably reflect the relationship between the wetting shear strain and the stress state. By analyzing the shear strength behavior after wetting, the wetting under different stress levels has little influence on the strength parameter of the coarse-grained soil.
- wetting deformation /
- large-scale triaxial test /
- strength parameter /
- Shen's model

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参考文献(17)

[1]	左元明,沈珠江. 坝壳砂砾料浸水变形特性的测定[J]. 水利水运科学研究, 1989(1):107-113 ZUO Yuan-ming, SHEN Zhu-jiang. Deformation character of gravel sand due to wetting[J]. Journal of Nanjing Hydraulic Research Institute, 1989(1):107-113. (in Chinese))
[2]	魏松,朱俊高. 粗粒土料湿化变形三轴试验研究[J]. 岩石力学, 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))
[3]	刘新喜,夏元友,刘祖德,等. 复杂应力下强风化软岩湿化变形试验研究[J]. 岩石力学与工程学报, 2006,25(5):925-930 LIU Xin-xi, XIA Yuan-you, LIU Zu-de,et al. Experimental study on slaking deformation of intense weathering soft rock under complicated stress conditions[J]. Chinese Journal of Rock Mechanics and Engineering, 2006,25(5):925-930. (in Chinese))
[4]	左永振,程展林,姜景山,等. 粗粒料湿化变形后的抗剪强度分析[J]. 岩土力学, 2008,29(增刊):559-562 ZUO Yong-zhen, CHENG Zhan-lin, JIANG Jing-shan,et al. Analysis of shearing strength after wetting deformation of coarse-grained materials[J]. Rock and Soil Mechanics, 2008,29(S0):559-562. (in Chinese) )
[5]	魏松,朱俊高. 粗粒料湿化变形三轴试验中几个问题[J]. 水利水运工程学报, 2006(1):19-23 WEI Song, ZHU Jun-gao. Discussion on some problems in triaxial wetting test of coarse-grained materials[J]. Hydro-Science and Engineering, 2006(1):19-23. (in Chinese) )
[6]	程展林,左永振,丁红顺,等. 堆石料湿化特性试验研究[J]. 岩土工程学报, 2010,32(2):243-247 CHENG Zhan-lin, ZUO Yong-zhen, DING Hong-shun,et al. Wetting characteristics of coarse-grained materials[J]. Chinese Journal of Geotechnical Engineering, 2010,32(2):243-247. (in Chinese))
[7]	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 of coarse aggregate under high triaxial stress condition[J]. Chinese Journal of Rock Mechanics and Engineering, 2004,23(2):231-234. (in Chinese))
[8]	彭凯,朱俊高,王观琪. 堆石料湿化变形三轴试验研究[J]. 中南大学学报自然科学版, 2010,41(5):1953-1960 PENG Kai, ZHU Jun-gao, WANG Guan-qi. Study on slaking deformation of rockfill materials by triaxial test[J]. Journal of Central South University (Natural Science Edition), 2010,41(5):1953-1960. (in Chinese))
[9]	朱文君,张宗亮,袁友仁,等. 粗粒料单向压缩湿化变形试验研究[J]. 水利水运工程学报, 2009(3):99-102 ZHU Wen-jun, ZHANG Zong-liang, Yuan you-ren,et al. Study on wetting deformation behavior of coarse-grained materials under axial compression condition[J]. Hydro-science and Engineering, 2009(3):99-102. (in Chinese))
[10]	李广信. 堆石料的湿化试验和数值模型[J]. 岩土工程学报, 1990,12(5):58-64 LI Guang-xin. Study on wetting of rock fill[J]. Chinese Journal of Geotechnical Engineering, 1990,12(5):58-64. (in Chinese))
[11]	ESCUDER I, ANDREU J, RECHEA M. An analysis of stress-strain behaviour and wetting effects on quarried rock shells[J]. Can Geotechnical Journal, 2005,42(1):51-60
[12]	董建筑,王瑞骏. 黑河水库初次蓄水大坝湿化变形有限元分析[J]. 水资源与水工程学报, 2004,15(1):71-77 DONG Jian-zhu, WANG Rui-jun. Finite element analysis of wetting deformation for Heihe earth dam during reservoir filling[J]. Journal of Water Resources and Water Engineering, 2004,15(1):71-77. (in Chinese))
[13]	王登银,孙义. 湿化作用对粘土斜心墙坝应力变形影响[J]. 三峡大学学报, 2008,30(5):13-17 WANG Deng-yin, SUN Yi. Effect of humidification on stress deformation of earth dam with inclined clay core[J]. Journal of China Three gorges University, 2008,30(5):13-17. (in Chinese))
[14]	王登银,王永明,孙义,等. 湿化效应对沥青混凝土心墙坝的应力变形影响[J]. 水电能源科学, 2008,26(4):112-115 WANG Deng-yin, WANG Yong-ming, SUN Yi,et al. Effect of humidification on stress deformation of earth-rockfill dam with asphalt concrete core[J]. Water Resources and Power, 2008,26(4):112-115. (in Chinese))
[15]	沈珠江,王剑平. 土质心墙坝填筑及蓄水变形的数值模拟[J]. 水利水运科学研究, 1988(4):47-63 SHEN Zhu-jiang, WANG Jian-ping. Numerical simulation of construction behavior of clay core dam and its movement due to reservoir impounding[J]. Journal of Nanjing Hydraulic Research Institute, 1988(4):48-63. (in Chinese))
[16]	李全明,于玉贞,张丙印,等. 黄河公伯峡面板堆石坝三维湿化变形分析[J]. 水力发电学报, 2005,24(3):24-29 LI Quan-ming, YU Yu-zhen, ZHANG Bing-yin,et al. Three-dimensional analysis for the wetting deformation of Gongboxia concrete faced rock-fill dam on the Yellow River[J]. Journal of Hydroelectric Engineering, 2005,24(3):24-29. (inChinese)
[17]	王富强,郑瑞华,张嘎,等. 积石峡面板堆石坝湿化变形分析[J]. 水力发电学报, 2009,28(2):56-60 WANG Fu-qiang, ZHENG Rui-hua, ZHANG Ga,et al. Slaking deformation analysis for Jishixia concrete faced rockfill dam[J]. Journal of Hydroelectric Engineering, 2009,28(2):56-60. (in Chinese))