| 红砂岩地区某加筋土挡土墙凸形拐角鼓胀病害分析 |
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| 引用本文： | 刘晓明,袁振宇,陈昌富,赵明华.红砂岩地区某加筋土挡土墙凸形拐角鼓胀病害分析[J].土木工程学报,2011(Z2). |
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| 作者姓名： | 刘晓明 袁振宇 陈昌富 赵明华 |
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| 作者单位： | 湖南大学;广东省建设工程质量安全监督检测总站; |
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| 基金项目： | 国家自然科学基金(50808076) |
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| 摘 要： | 对某红砂岩地区加筋土挡土墙鼓胀病害实例进行介绍和分析。首先介绍加筋土挡土墙的原设计情况,然后介绍该挡土墙凸形拐角处发生的上部面板鼓胀现象及变形量测结果。紧扣加筋土挡墙凸角区特点,分析凸角区鼓胀变形的原因:第一,在分析凸角锚固区筋带拉力增长系数与凸角长度关系的基础上,认为锚固区筋带作用合力增大是鼓胀变形的主要原因;第二,通过分析筋-土锚固特点,认为凸角区因筋带重叠导致筋带间土体水平位移增大、筋带自由段长度增大,导致筋带变形增大是鼓胀原因之二;第三,认为凸角段地形为边坡稳定不利地段,是凸角段挡墙面板容易产生鼓胀的原因。
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| 关 键 词： | 加筋土挡墙 鼓胀 锚固区 重叠 |
Analysis of convex corner bulging deterioration of reinforced earth retaining wall in red sandstone area |
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| Liu Xiaoming Yuan Zhenyu, Chen Changfu Zhao Minghua.Analysis of convex corner bulging deterioration of reinforced earth retaining wall in red sandstone area[J].China Civil Engineering Journal,2011(Z2). |
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| Authors: | Liu Xiaoming Yuan Zhenyu Chen Changfu Zhao Minghua |
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| Affiliation: | Liu Xiaoming1 Yuan Zhenyu1,2 Chen Changfu1 Zhao Minghua1 (1.Hunan University,Changsha 410082,China,2.General Station of Construction Engineering Quality Safety Supervision and Testing of Guangdong Province,Guangzhou 510500,China) |
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| Abstract: | A case history of bulging deterioration of a reinforced earth retaining wall in red sandstone area is introduced.The design of the retaining wall is introduced in detail,and the bulging phenomenon and the measuring results of bulging outline of the retaining wall is described.According to the characteristics of convex form,causes of the bulging deterioration of the retaining wall are investigated.First,based on the analysis of the relationship between increasing coefficient of tension force and convex corne... |
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| Keywords: | reinforced earth retaining wall bulging anchorage overlap |
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