| 土工织物加筋土坡变形和破坏过程的离心模型试验 |
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| 引用本文： | 张嘎,王爱霞,张建民,李焯芬.土工织物加筋土坡变形和破坏过程的离心模型试验[J].清华大学学报(自然科学版),2008(12). |
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| 作者姓名： | 张嘎 王爱霞 张建民 李焯芬 |
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| 作者单位： | 清华大学水利水电工程系;北京科技大学土木工程系; |
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| 基金项目： | 国家重点基础研究发展计划项目(2007CB714108); 国家自然科学基金资助项目(50679033) |
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| 摘 要： | 为了评价土工织物加筋土坡的稳定性,研究了土工织物对土坡变形和破坏过程的影响。在清华大学离心机上进行了自重加载条件下离心模型试验。采用离心场图像采集和非接触位移测量系统,测量了加载过程中土坡的位移场及其发展变化过程,对比了素土坡与土工织物加筋土坡的破坏模式和变形发展过程。试验结果表明:土工织物明显改变了土坡的破坏形态,滑裂面位置明显前移;土工织物的约束作用使得土体的变形趋向均匀,增强了土体的整体稳定性。
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| 关 键 词： | 土坡 离心模型试验 土工织物 应变局部化 |
Centrifuge modeling of the failure of geotextile-reinforced slopes |
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| ZHANG Ga,WANG Aixia,ZHANG Jianmin,LEE Chuofen.Centrifuge modeling of the failure of geotextile-reinforced slopes[J].Journal of Tsinghua University(Science and Technology),2008(12). |
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| Authors: | ZHANG Ga WANG Aixia ZHANG Jianmin LEE Chuofen |
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| Institution: | ZHANG Ga1,WANG Aixia2,ZHANG Jianmin1,LEE Chuofen1(1.Department of Hydraulic Engineering,Tsinghua University,Beijing 100084,China,2.Department of Civil Engineering,University of Science , Technology Beijing,Beijing 100083,China) |
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| Abstract: | The influence of the geotextiles on the deformation and failure of geotextile-reinforced slopes is a key issue in slope stability.Centrifugal model tests were conducted to investigate the failure of soil slopes reinforced using geotextiles.The deformation fields and their changes due to loading were measured using an image-based displacement measurement system.The failure and deformation of the geotextile-reinforced slope were investigated by comparing observations of reinforced and pure soil slopes.The res... |
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| Keywords: | slope centrifuge modeling geotextile progressive failure |
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