| 失稳加筋土挡土墙的联合加固技术 |
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| 引用本文： | 张志增,高永涛,马飞.失稳加筋土挡土墙的联合加固技术[J].北京科技大学学报,2006,28(10):917-920. |
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| 作者姓名： | 张志增 高永涛 马飞 |
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| 作者单位： | 1. 北京科技大学金属矿山高效开采与安全教育部重点实验室,北京,100083;清华大学水利水电工程系,北京,100084
2. 北京科技大学金属矿山高效开采与安全教育部重点实验室,北京,100083 |
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| 摘 要： | 为了研究加筋土挡土墙的破坏机理和加固技术,以某立交桥挡土墙加固工程为例,首先分析了加筋土挡土墙的失稳原因, 采用了喷射混凝土、预应力锚杆、注浆联合加固方案, 然后对施工中的主要技术难题进行研究并提出了解决方案, 最后用国际流行的软件FLAD2D进行数值模拟.加筋土挡土墙加固后预应力稳定, 墙面无变形, 表明联合加固方案是可行的.
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| 关 键 词： | 加筋土挡土墙 联合加固 锚固 注浆 失稳原因 加筋土挡土墙 加固技术 walls earth reinforced failure technique 变形 墙面 稳定 预应力锚杆 数值模拟 软件 国际 加固方案 施工 注浆 喷射混凝土 分析 |
| 收稿时间： | 2005-07-11 |
| 修稿时间： | 2006-04-25 |
United reinforcement technique on the failure of reinforced earth retaining walls |
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| ZHANG Zhizeng,GAO Yongtao,MA Fei.United reinforcement technique on the failure of reinforced earth retaining walls[J].Journal of University of Science and Technology Beijing,2006,28(10):917-920. |
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| Authors: | ZHANG Zhizeng GAO Yongtao MA Fei |
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| Institution: | 1. State Key Laboratory of High-efficient Mining and Safety for Metal Mines. University of Science and Technology Beijing, Beijing 100083 China; 2. Department of Hydraulic and Hydropower Engineering, Tsinghua University, Beijing 100084, China |
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| Abstract: | In order to study the failure mechanism and reinforcement technique of reinforced earth retaining walls,the reinforcement project of a crossroad was taken as an example. The failure mechanism was analyzed firstly. A united measure of shotcrete lining on the surface,pre-stressed anchor and injection was applied. Main problems in construction were discussed and solved. Lastly,the reinforcement effect was simulated with FLAC 2D . After the reinforcement,stable stress and little deformation indicate the united measure is effective. |
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| Keywords: | reinforced earth retaining wall united reinforcement anchorage injection |
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