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[1]吴能森,赖榕洲,邹文平,等.含水率对花岗岩残积土邓肯\|张模型参数影响[J].武汉工程大学学报,2013,(09):18-23.[doi:103969/jissn16742869201309004]
　WU Neng\|sen,LAI Rong\|zhou,ZOU Wen\|ping,et al.Influence of moisture content on parameters of Duncan\|Chang model for granite residual soil[J].Journal of Wuhan Institute of Technology,2013,(09):18-23.[doi:103969/jissn16742869201309004]
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《武汉工程大学学报》[ISSN:1674-2869/CN:42-1779/TQ]

卷:
期数:
2013年09期
页码:
18-23
栏目:
资源与土木工程
出版日期:
2013-10-10

文章信息/Info

Title:
Influence of moisture content on parameters of Duncan\|Chang model for granite residual soil
文章编号:
16742869(2013)09001806
作者:
吴能森; 赖榕洲; 邹文平; 林智雄; 徐青
福建农林大学交通与土木工程学院，福建 福州350002
Author(s):
WU Neng\|sen;  LAI Rong\|zhou;  ZOU Wen\|ping;  LIN Zhi\|xiong;  XU Qing
College of Transportation and Civil Engineering Agriculture and Forestry University, Fuzhou 350002, China
关键词:
三轴压缩试验; 应力\|应变曲线; 变形特征; 影响规律
Keywords:
triaxial compression test; stress\|strain curve; deformation characteristics; influencing rule
分类号:
TU411
DOI:
103969/jissn16742869201309004
文献标志码:
A
摘要:
制作了不同含水率花岗岩残积土击实试样，进行一系列固结排水三轴试验.得出在不同围压和不同含水率条件下，花岗岩残积土击实试样在三向应力作用下均呈现鼓胀破坏的变形特征，其固结排水应力\|应变曲线均为加工硬化型，与邓肯\|张模型的条件式基本吻合.通过邓肯\|张模型参数的计算与分析，得知含水率对花岗岩残积土的邓肯\|张模型参数整体上影响较大，其中粘聚力受影响最显著，无因次指数n和低围压时的初始变形模量受影响较显著，基本规律为：抗剪强度指标粘聚力、内摩擦角值，初始变形模量及无因次基数K均随着含水率的增大而减小；无因次指数、破坏比随含水率的增大而增大；各参数与含水率关系曲线均在最优含水率处出现拐点，且当含水率大于最优含水率时，其对各参数的影响不同程度地加大.
Abstract:
A series of triaxial consolidation drained tests were done under different surrounding pressures on the granite residual soil samples of different moisture contents. The result shows that under different surrounding pressures and different moisture contents, the granite residual soil samples in triaxial stress present bulging deformation failure characteristics, all stress\|strain curves show the property of work\|hardening which coincides with the conditional formula of Duncan\|Chang model basically. The calculation and analysis of the Duncan\|Chang model parameters shows that the moisture content of granite residual soils has a considerable influence on the Duncan\|Chang model parameters overall, in which cohesion c is the most significant, and the dimensionless index and initial deformation modulus under small confining pressure are comparatively significant, the basic rule is as follows: with the growth of the moisture content, the shear strength indexes, the initial deformation modulus and the dimensionless radix continue to decrease, while the parameters of dimensionless index and failure stress ratio continue to increase; all parameter\|water content curves appear inflection point at the optimum moisture content, when the moisture content is greater than its optimal value, the effect of moisture content on the parameters increases to different degrees.

参考文献/References:

\[1\]吴能森．结构性花岗岩残积土的特性及工程问题研究\[D\]．南京：南京林业大学，2005：51\|55．WU Nengsen. A study on characteristics and some engineering problems of granite residual soil with structural nature\[D\]. Nanjing: Nanjing Forestry University, 2005: 51\|55. (in Chinese)\[2\]吴能森．花岗岩残积土的崩解性及软化损伤参数研究\[J\]．河北建筑科技学院学报，2006，23(3)：58\|62． WU Nengsen. A study on calving property and softening damage parameter of granite residual soil\[J\]. Journal of Hebei Institute of Architectural Science and Technology，2006, 23(3): 58\|62. (in Chinese)\[3\]李险峰．含水率对金坪子滑坡土体力学特性的影响\[J\]．武汉工程大学学报，2012，34(3)：27\|31． LI Xianfeng. Impact of moisture content on mechanical properties of Jinpingzi slip soil\[J\]. Journal of Wuhan Institute of Technology，2012,34(3): 27\|31. (in Chinese)\[4\]张学言，闫澍旺．岩土塑性力学基础\[M\]．天津：天津大学出版社，2004：60\|65． ZHANG Xueyan, YAN Shuwang．Fundamentals of geotechnics plasticity\[M\]. Tianjin: Tianjin University Press, 2004: 60\|65. (in Chinese)\[5\]Kondner R L. Hyperbolic Stress\|stain Response: Cohesive soils\[J\]. Journal of the Soil Mechanics and Foundations Division ASCE, 1963, 89(SM1): 115\|143. \[6\]Duncan J M, Chang C Y. Nonlinear analysis of Stress and Strain in Soils\[J\].Journal of the Soil Mechanics and Foundations Division ASCE, 1970, 96(SM5): 1629\|1653.\[7\]水利部南京水利科学研究院．GB/T 50123\|1999 土工试验方法标准\[S\]．北京：中国计划出版社．Nanjing Hydraulic Research Institute. GB/T 50123\|1999 Standard for soil test method\[S\]. Beijing: China Planning Press. (in Chinese)\[8\]胡中雄．土力学与环境土工学\[M\]．上海：同济大学出版社，1997：146． HU Zhongxiong. Soil mechanics and environmental geotechnics\[M\]. Shanghai: Tongji University Press,1997: 146. (in Chinese)

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备注/Memo

备注/Memo:
收稿日期：20130626基金项目：福建省自然科学基金项目(2007J0357)；福建省高等学校科技项目(JA09073)；福州大学土木工程国家级实验教学中心第三期创新性实验研究项目(IRP2012-3)；福建农林大学创新(培育)团队建设项目(Pytd12006).作者简介：吴能森(1964\|)，男，福建福清人，教授，博士，博士研究生导师.研究方向：岩土力学及地下工程.
更新日期/Last Update: 2013-10-11