周小平
土木工程、岩土工程、隧道工程
个性化签名
- 姓名:周小平
- 目前身份:
- 担任导师情况:
- 学位:
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学术头衔:
博士生导师, 教育部“新世纪优秀人才支持计划”入选者
- 职称:-
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学科领域:
岩土力学
- 研究兴趣:土木工程、岩土工程、隧道工程
周小平:重庆大学土木工程学院教授、博士生导师。
研究方向:土木工程、岩土工程、隧道工程
个人简历:
1988.9-1992.7 南方冶金学院就读工业与民用建筑专业,获得学士学位
1992.9-1995.7 昆明理工大学就读岩土工程专业,获得硕士学位
1995.9-1997.9 云南农业大学水利水电建筑工程系任教
1997.9-2000.12 重庆建筑大学就读岩土工程专业,获得博士学位
2001.3-2003.3 上海交通大学建筑工程和力学学院进行博士后研究工作
2006.11 重庆大学任教授
科研项目:
用CT细观测试技研究岩体卸荷特性(ct-02-07-16)(2002-2003年度中国长江三峡工程开发总公司课题)(横向) (项目负责人)(9万)
国家“八五”科技攻关课题(85-106-01-02-03)“大厂铜坑矿细脉带地压及充填体稳定性监测”(第二参加人) (国家级)
国家自然基金(59879012)三维有限元跟踪复杂边界条件地基滑动面(第二参加人)
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主页访问
2233
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关注数
0
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成果阅读
670
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成果数
20
周小平, Xiao-ping Zhou*
International Journal of Solids and Structures 41(2004)1725-1738,-0001,():
-1年11月30日
Stress redistribution induced by excavation results in the tensile zone in parts of the surrounding rock mass. It is significant to analyze the localization of deformation and damage, and to study the complete stress-strain relation for mesoscopic heterogeneous rock under dynamic uniaxial tensile loading. On the basis of micromechanics, the complete stress-strain relation including linear elasticity, nonlinear hardening, rapid stress drop and strain softening is obtained. The behaviors of rapid stress drop and strain softening are due to localization of deformation and damage. The constitutive model, which analyze localization of deformation and damage, is distinct from the conventional model. Theoretical predictions have shown to consistent with the experimental results.
Dynamic uniaxial tensile loading, Mesoscopic heterogeneous rock, Micromechanics, Localization of damage and deformation, The complete stress-strain relation
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22浏览
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130下载
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引用
周小平, Xiaoping Zhou a, b, *, Qiuling Ha c, Yongxing Zhang a, Keshan Zhu a
International Journal of Rock Mechanics & Mining Sciences 41 (2004) 311-319,-0001,():
-1年11月30日
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39浏览
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【期刊论文】A New Fracture Criterion for a Crack under Combined Mode Loading
周小平, ZHOU Xiao-ping, (周小平), WANG Jian-hua(王建华)
Journal of Shanghai Jiaotong University, Vol.E-8, No.1, 2003, 89~91,-0001,():
-1年11月30日
A new fracture criterion was proposed. The physical explanation of the criterion is that crack will propa-gate when the minimum strain energy-density in iso-hoop-stress curve reach a critical strength of the material con-sidered. The resulting curve of critical fracture of mixed-mode cracks shows that the present fracture is efficient and more accurate than the previous criteria.
fracture criterion, combined mode loading, minimum strain energy-density in iso-hoop-stress curve
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52浏览
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88下载
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引用
周小平, ZHOU Xiao-ping*(周小平), WANG Jian-hua(王建华), HUANG Yu-bin(黄煜镔)
Journal of Shanghai Jiaotong University, Vol.E28, No.2, 2003, 115~117,-0001,():
-1年11月30日
The near crack line analysis method was used to investigate a crack loaded by a pair of point shear forces in an infinite plate in an elastic-perfectly plastic solid. The analytical solution was obtained, that is the elastic-plas-tic fields near crack line and law that the length of the plastic zone along the crack line is varied with external loads. The results are sufficiently precise near the crack line and are not confined by small scale yielding condi-tions.
near crack line, elastic-plastic analysis, a pair of point shear forces
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68浏览
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引用
周小平, Jian-hua Wang a, *, Xiao-ping Zhou b
Mechanics Research Communications 31(2004)415-420,-0001,():
-1年11月30日
The near crack line analysis method is used to investigate a center crack loaded by two pairs of point tensile forces in an infinite plate in an elastic-perfectly plastic solid, and the analytical solutions are obtained in this paper. These solutions include: the elastic-plastic stress field near the crack line, the law that the length of the plastic zone along the crack line is varied with an external loads and the bearing capacity of an infinite plate with a center crack. The results of this paper are sufficiently precise near the crack line because the assumptions of the small scale yielding theory have not been used and no other assumptions have been taken.
Near crack line analysis, Elastic-plastic analytical solution, Two pairs of point tensile forces
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24浏览
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53下载
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引用
周小平, Xiao-ping Zhou*
International Journal of Solids and Structures 41(2004)1725-1738,-0001,():
-1年11月30日
Stress redistribution induced by excavation results in the tensile zone in parts of the surrounding rock mass. It is significant to analyze the localization of deformation and damage, and to study the complete stress-strain relation for mesoscopic heterogeneous rock under dynamic uniaxial tensile loading. On the basis of micromechanics, the complete stress-strain relation including linear elasticity, nonlinear hardening, rapid stress drop and strain softening is obtained. The behaviors of rapid stress drop and strain softening are due to localization of deformation and damage. The constitutive model, which analyze localization of deformation and damage, is distinct from the conventional model. Theoretical predictions have shown to consistent with the experimental results.
Dynamic uniaxial tensile loading, Mesoscopic heterogeneous rock, Micromechanics, Localization of damage and deformation, The complete stress-strain relation
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24浏览
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0点赞
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0收藏
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51下载
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引用
周小平, Xiao-ping Zhou a, b, *, Jian-hua Wang b
Mechanics Research Communications 32(2005)161-171,-0001,():
-1年11月30日
It is of important significance to study the coalescence mechanism of splitting failure of crack-weakened rock masses under compressive loads. In this paper, a simplified mechanism of crack propagation, in which the crack grows along the direction of maximum principal compressive stress, is proposed. Thus, only mode I is taken into account in the formulation and solution. On the basis of the near crack line analysis method, the elastic-plastic stress field near the crack line is analyzed, and the law that the length of the plastic zone along the crack line is varied with an external loads have been established by the matching condition of the elastic-plastic fields on the boundary, the coalescence stress and the strength properties of rock masses have been determined. The solution is a function of the geometry of the crack array. The results show that the crack coalescence depends on the crack interface friction coefficient, the sliding crack spacing, orientation of the cracks, and the crack half-length. The conclusions are of important significance for rock mass engineering.
Compressive loads, Rock masses with intermittent joints, Splitting failure, Coalescence mechanism
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48浏览
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81下载
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【期刊论文】A New Nonlinear Yieid Criterion
周小平, ZHOU Xiao-ping, , (周小平), ZHANG Yong-xing(张永兴), WANG Jian-hua(王建华)
Journal of Shanghai Jiaotong University (Science). Vo1.E-9, No.1, 2004. 31~33,-0001,():
-1年11月30日
Many experimental results show that a wide class of ductile materials obey often nonlinear behavior. thus it is im portant to propose a nonlinear criterion describing nonlinear behavior of ductile m ateria1. A new non-linear yield criterion was proposed which gives a series of new failure criteria, establishes a relationship among var-ious failure criteria, and encom passes previous yield criteria as special cases or approximations. The criterion is ca-pable of being expressed in a sim ple m athem atical expression and through a particular physical concept, it also agree with some experimental data. It may therefore serve as a possible admissible isotropic yield criterion.
new nonlinear yield criterion, sim ple mathematical expression, isotropic yield criterion
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37浏览
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113下载
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周小平, , 张永兴, 朱可善
岩土工程学报,2003,25(5):606~610,-0001,():
-1年11月30日
研究了中低围压条件下细观非均匀性岩石的变形局部化问题和全过程应力应变关系。研究表明,全过程应力应变关系包括线弹性阶段、非线性强化阶段和应变软化阶段。分析了产生应变软化的主要原因是损伤和变形局部化,将损伤和变形局部化引入本构模型是和以往本构模型的重要区别。通过和实验对比分析验证了模型的正确性和有效性。
中低围压, 细观非均匀性岩石, 损伤和变形局部化, 全过程应力应变关系
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27浏览
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