对均质土坡滑裂面位置变化规律的定性分析

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英文篇名：Qualitative Analysis of Influence of Physical and Mechanical Indexes on Critical Slip Surface of Homogeneous Soil Slope 中文刊名：水电能源科学 英文刊名：Water Resources and Power 作者：卢坤林 ; 朱大勇 ; 闫艳 ; 丁二虎 英文作者：LU Kunlin ZHU Dayong YAN Yan DING Erhu(School of Civil Engineering ; Hefei University of Technology ; Hefei 230009 ; China) 中文关键词：土坡稳定性 ; 最危险滑面 ; 粘聚力 ; 内摩擦角 ; 重度 ; 边坡高度 ; 水平地震系数 英文关键词：slope stability analysis ; the critical slip surface ; cohesion ; internal friction angle ; unit weight ; slope height ; horizontal seismic coefficient 出版日期：2010-06-25 机构：合肥工业大学土木与水利工程学院; 年：2010 期：06 出版单位：水电能源科学

摘要

针对在土坡稳定性分析中最危险滑面的位置受众多因素的影响,采用临界滑动场理论分析了粘聚力、内摩擦角、土体重度、边坡高度及水平地震系数对不同坡比时均质土坡最危险滑面位置的影响。结果表明,滑面位置随粘聚力增大、内摩擦角减小而逐渐变深,坡高愈大滑面位置浅,重度影响轻微,随水平地震系数的增加坡顶处深度增大、在坡脚处深度减小。
In the slope stability analysis,the position of critical slip surface was determined by many factors.The influence of cohesion,internal friction angle,unit weight,slope height and horizontal seismic coefficient on the position of critical slip surface in homogeneous soil slopes with different slope ratios was discussed using the theory of critical slip field.The results show that,with other parameters invariant,the position of slip surface is deeper with the increase of cohesion and the decrease of internal friction angle,shallower with the increase of slope height,almost unchanged with the different unit weight,and deeper on top of slope but shallower on toe of slope with the increase of horizontal seismic coefficient.

引文

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