| 土钉墙-锚杆支护技术模型试验及有限元研究 |
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| 引用本文： | 王义重,王其勇,刘欢,傅旭东.土钉墙-锚杆支护技术模型试验及有限元研究[J].岩土力学,2011,32(Z2):222-227. |
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| 作者姓名： | 王义重 王其勇 刘欢 傅旭东 |
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| 作者单位： | 1. 武汉大学 岩土与结构工程安全湖北省重点实验室，武汉 430072；2. 武汉大学 土木建筑工程学院，武汉 430072； 3. 铁道第四勘察设计院，武汉 430062 |
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| 基金项目： | 武汉市青年科技晨光计划(No.20015005061) |
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| 摘 要： | 土钉复合土锚杆支护技术是对单一土钉墙技术的发展与改进，该方法具有施工简便，工期短，造价低廉等独特优点。虽然该方法已在工程中应用广泛，但土钉与土锚杆的复合支护的理论却还不完善。因此很有必要开展土钉墙复合土锚杆的模型试验，以加深对土钉与土锚杆复合支护体系的认识。通过多组模型试验，研究了在不同加载位置以及不同施工阶段下土钉的内力分配，基坑土体的位移场分布，不同加载位置下土钉及锚杆的支护效果等。结果表明：当超载较大且靠近基坑坑壁时，易出现直线型的滑动面，而超载距离坑壁较远，则较易出现圆弧状滑动面；锚杆对于控制滑动面出现有较强的作用，因此当超载靠近坡面时应将锚杆布置在坡面中上部，超载离坡面较远时，应布置在坡面下部
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| 关 键 词： | 土钉与锚杆 模型试验 有限元 |
| 收稿时间： | 2011-04-02 |
Laboratory model tests and finite eleent analysis of soil nails-anchors supporting technique of foundation pit excavation |
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| WANG Yi-zhong,WANG Qi-yong,LIU Huan,FU Xu-dong.Laboratory model tests and finite eleent analysis of soil nails-anchors supporting technique of foundation pit excavation[J].Rock and Soil Mechanics,2011,32(Z2):222-227. |
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| Authors: | WANG Yi-zhong WANG Qi-yong LIU Huan FU Xu-dong |
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| Institution: | 1. Key Laboratory of Geotechnical and Structural Engineering Safety of Hubei Province, Wuhan University, Wuhan 430072, China; 2. School of Civil and Architectural Engineering, Wuhan University, Wuhan 430072, China; 3. The Fourth Survey and Design Institute of China Railways, Wuhan 430072, China |
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| Abstract: | The composite supporting technology of soil nailing and bolting was developed from soil nailing technology;this technology is simple in construction,short construction period,low cost and has some other unique advantages.Although it has been widely used in engineering,but the theory of the composite supporting system is still imperfect and needs to be improved.Therefore it is essential to carry out model tests to deepen the knowledge of the composite system of soil nails and anchors.Through multiple sets of... |
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| Keywords: | soil nail anchor model test finite elements |
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