[1]李慧,贾红晶,程学磊,等.考虑轴平移技术系统误差的边坡稳定性分析[J].深圳大学学报理工版,2017,34(No.5(441-550)):495-500.
 Li Hui,Jia Hongjing,Cheng Xuelei,et al.Stability analysis of slope after considering system error of axis-translation technique[J].Journal of Shenzhen University Science and Engineering,2017,34(No.5(441-550)):495-500.
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考虑轴平移技术系统误差的边坡稳定性分析()
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《深圳大学学报理工版》[ISSN:1000-2618/CN:44-1401/N]

卷:
第34卷
期数:
2017年No.5(441-550)
页码:
495-500
栏目:
土木建筑工程
出版日期:
2017-09-30

文章信息/Info

Title:
Stability analysis of slope after considering system error of axis-translation technique
作者:
李慧1贾红晶2程学磊3桂超4潘林娜2张瑞敏1
1) 郑州工商学院建筑工程学院,河南郑州 451400;2) 天津城建大学土木工程学院,天津 300384;3) 大连海事大学土木工程系,辽宁大连 116026;4) 新乡学院土木工程与建筑学院,河南新乡 453003
Author(s):
Li Hui1 Jia Hongjing2 Cheng Xuelei3 Gui Chao4 Pan Linna2 and Zhang Ruimin1
1) School of Civil Engineering, Zhengzhou Technology and Business University, Zhengzhou 451400, Henan Province, P.R.China2) School of Civil Engineering, Tianjin Chengjian University, Tianjin 300384, P.R.China3) Department of Civil Engineering, Dalian Maritime University, Dalian 116026, Liaoning Province, P.R.China4) School of Civil Engineering and Architecture, Xinxiang University, Xinxiang 453003, Henan Province, P.R.China
关键词:
岩土力学饱和度渗透系数土水特征曲线塑性区
Keywords:
soil mechanics saturation permeability coefficient soil water characteristic curve plastic zone
文献标志码:
A
摘要:
为分析非饱和土边坡的稳定性,研究了渗透系数与基质吸力的关系,考虑了饱和度对渗透系数的影响,建立了非饱和土不同强度下的土-水特征曲线(soil water characteristic curve,SWCC). 利用Abaqus有限元模拟软件分别模拟了轴平移技术实测的SWCC和应用修正计算方法修正的SWCC,分析了坡内孔隙水压力变化、坡体变形和坡内塑性区出现的区域. 研究表明,直接应用轴平移技术测试的SWCC进行边坡稳定性分析时,得到的坡内土体变形、等效塑性区较实际情况偏小,土的真实强度将被放大,存在安全隐患;应用SWCC修正计算方法,更接近边坡内土体的实际情况,并能降低工程隐患.
Abstract:
In order to analyze the stability of unsaturated soil slope, we investigate the influence of saturation on permeability coefficient. We establish the relationship between the soil water characteristic curve (SWCC) and the unsaturated soil strength under the consideration of the permeability coefficient and matric suction. Using Abaqus finite element simulation software, we also compare SWCCs measured by axis-translation technique and modified calculation method, and analyze of pore water pressure, the slope position, slope deformation, and the plastic zone of the slope. The results show that the direct analysis of slope stability by SWCC with axis-translation technique will give smaller slope deformation and smaller equivalent the plastic zone than those of the real situation, and the real strength will be exaggerated. So the risk of security exists. The application of SWCC with correction calculation method can better grasp the real situation in the slope soil and reduce the engineering hidden trouble.

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更新日期/Last Update: 2017-09-11