| 汤屯高速公路A匝道高边坡变形分析及应急治理 |
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| 引用本文： | 邹正明.汤屯高速公路A匝道高边坡变形分析及应急治理[J].公路交通技术,2007(4):16-19. |
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| 作者姓名： | 邹正明 |
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| 作者单位： | 合肥工业大学,合肥,230011;安徽省交通投资集团,合肥,230011 |
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| 摘 要： | 汤屯高速公路A匝道高边坡为变质砂岩组成的顺层边坡,施工开挖到第2级中部时边坡后缘出现一弧形裂缝,变形破坏模式表现为滑移-弯曲变形。鉴于该工程的重要性,根据设计、科研单位的意见,在监测结果指导下,对边坡采用框架预应力锚索进行应急治理,边坡变形基本稳定后再施工抗滑桩。从方案实施效果上看,由于该应急措施的采取使得其后的抗滑桩施工较为顺利,应急处理方案是有效的。监测结果表明,治理措施效果较好,目前边坡已处于稳定状态。
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| 关 键 词： | 顺层边坡 滑移-弯曲 预应力锚索 应急治理 |
| 文章编号： | 1009-6477（2007）04-0016-04 |
| 修稿时间： | 2006-12-04 |
Analysis of Deformation in High Slope on Ramp A of Tangtun Expressway and Trouble-Shooting |
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| Zou Zhengmin.Analysis of Deformation in High Slope on Ramp A of Tangtun Expressway and Trouble-Shooting[J].Technology of Highway and Transport,2007(4):16-19. |
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| Authors: | Zou Zhengmin |
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| Abstract: | Slope on ramp A of Tangtun Expressway is a bedding rock slope.During excavation in the middle of layer 2,there is an arc crack occurs at rear edge of the slope,the deformation and failure mode is shown as slide-bending deformation.For this project is important,according to suggestions by the designer and researching unit,under instruction by supervision results,frame prestress anchoring cable is used on slope for emergent treatment,anti-slide piles will be arranged after slope deformation stabilized.In view of result of this solution, it has meliorate downstream anti-slide pile construction,the emergent treatment solution is effective.The result of monitoring shows the effect of treatment is fine and the slope is now in stable status. |
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| Keywords: | bedding rock slope slide-bending prestressed anchoring cable emergent treatment |
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