| 三峡库区巫山新城超高加筋挡墙变形破坏及修复研究 |
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| 引用本文： | 殷跃平, 鄢毅, 陈波, 唐辉明, 林彤. 2003: 三峡库区巫山新城超高加筋挡墙变形破坏及修复研究. 工程地质学报, 11(1): 89-99. |
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| 作者姓名： | 殷跃平 鄢毅 陈波 唐辉明 林彤 |
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| 作者单位： | 1.国土资源部中国地质调查局,北京100035;;2.中国地质大学武汉,武汉430000 |
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| 摘 要： | 结合三峡库区弃渣灾害的防治和回填增地,以巫山新城加筋土挡墙等实际工程为典型进行剖析,对加筋土挡墙,特别是超高加筋土挡墙变形破坏机制和过程进行了系统深入的研究。从加筋土挡墙填土物理力学性质室内试验研究入手,采用FLAC等数值计算方法,系统地研究了加筋土挡墙的应力状况和变形破坏特性。将离心模拟技术应用于超高多级加筋土挡墙(H=57m)的研究中,进行了三级加筋土挡墙的离心模型试验,对加筋土挡墙墙背土压力分布规律、挡墙面板和填土的沉降情况以及拉筋的拉力分布规律进行了详细而系统的研究。特别是精心设计出离心模型试验中三级挡墙的面板与拉筋的联结,较真实地反映了实际工程中加筋土挡墙整体复合结构的力学特性。根据研究结果,提出了巫山新城加筋土挡墙修复加固方案,编制了设计报告,并加以实施。目前,修复加固工程效果良好。 对库区,乃至全国超高加筋土挡墙的建设均有指导和示范作用。
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| 关 键 词： | 三峡 加筋土挡墙 FLAC模拟 离心机模拟 |
| 文章编号： | 1004-9665/2003/11(01)-0089-11 |
| 收稿时间： | 2002-11-15 |
| 修稿时间： | 2002-11-15 |
DEFORMATION AND FAILURE OF SUPER-HIGH REINFORCED RETAINING WALL AND ITS REMEDIATION IN WUSHAN NEW TOWN ON THE THREE-GORGES RESERVOIR |
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| YIN Yueping, YAN Yi, CHEN Bo, TANG Huiming, LIN Tong. 2003: DEFORMATION AND FAILURE OF SUPER-HIGH REINFORCED RETAINING WALL AND ITS REMEDIATION IN WUSHAN NEW TOWN ON THE THREE-GORGES RESERVOIR. JOURNAL OF ENGINEERING GEOLOGY, 11(1): 89-99. |
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| Authors: | YIN Yueping YAN Yi CHEN Bo TANG Huiming LIN Tong |
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| Affiliation: | 1.China Geology Survey, Beijing,100035;;2.China University of Geoscience, Wuhan 43000 |
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| Abstract: | A super high reinforced retaining wall 57 m high is analyzed in combination with waste soil & rock disposal and enlargement of land use by filling in the Wushan county, an typical site of relocation of the Three Gorges. The FLAC is applied to simulating stress state, deformation and failure process. And the pressure distribution at the wall back, subsidence of plate and filling, and fabric belt tense force is studied by using centrifuge modeling, a model of three-step wall is setup. A complete program is suggested to remedy the damage wall. |
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| Keywords: | Three-Gorges Reinforced retaining wall FLAC Centrifuge modelling |
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