| 加筋水泥土墙复合土钉支护的现场测试研究 |
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| 引用本文： | 司马军,刘祖德,徐书平.加筋水泥土墙复合土钉支护的现场测试研究[J].岩土力学,2007,28(2):371-375. |
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| 作者姓名： | 司马军 刘祖德 徐书平 |
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| 作者单位： | 武汉大学 土木建筑工程学院，武汉 430072 |
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| 基金项目： | 致谢：本次现场测试工作得到了中冶集团武汉勘察研究院邓小雄经理、机械部第三勘察院刘晖工程师等的支持和帮助,在此一并致谢! |
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| 摘 要： | 结合武汉某深基坑支护工程，介绍了加筋水泥土墙复合土钉这一新型支护形式。通过对加筋水泥土和土钉的应力、位移进行测试和分析，研究了加筋水泥土墙复合土钉支护的工作机理。主要结论为：(1)支护变形特点为上大下小。(2)在一定的应力水平下水泥土和加筋体可以共同工作。(3)加筋水泥土墙在施工过程中起重要支挡作用。(4)支护结构的工作机理主要为挡墙效应、加筋效应和锚固效应。
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| 关 键 词： | 基坑支护 复合土钉 加筋水泥土墙 现场测试 |
| 文章编号： | 1000-7598-（2007）02-0371-05 |
| 收稿时间： | 2005-04-12 |
| 修稿时间： | 2005-04-12 |
Field testing study on composite soil nail with reinforced cement retaining wall |
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| SI Ma-jun,LIU Zu-de,XU Shu-ping.Field testing study on composite soil nail with reinforced cement retaining wall[J].Rock and Soil Mechanics,2007,28(2):371-375. |
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| Authors: | SI Ma-jun LIU Zu-de XU Shu-ping |
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| Institution: | School of Civil Engineer，Wuhan University，Wuhan 430072，China |
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| Abstract: | A kind of new composite soil nailing with reinforced cemented-soil wall is described and applied in a foundation excavation project in wuhan.A field investigation with extensive instrumentation and data collection is carried out,then the behaviors of the new composite soil nailing are further investigated based on the measurement.The main results are(:1) the defection is large at the top and little at the bottom;(2) cemented soil and reinforcing bar can work together at some level of stress;(3) the reinforced cemented-soil wall plays an important role during construction;(4) the behaviors of this supporting system include retaining-wall effect,reinforcing effect and anchor effect. |
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| Keywords: | excavation support composite soil nailing reinforced cement retaining wall field test |
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