| 土钉支护结构的极限分析方法 |
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| 引用本文： | 屠毓敏,王建江.土钉支护结构的极限分析方法[J].岩土力学,2006,27(9):1559-1562. |
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| 作者姓名： | 屠毓敏 王建江 |
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| 作者单位： | 1.浙江大学 土木工程学系，杭州 310027；2.浙江大学 建筑工程学院，杭州 310027 |
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| 摘 要： | 土钉支护结构一般均按极限状态进行设计，其中稳定性验算为设计之重点。根据土钉支护结构的特点，从分析土钉支护结构的破坏模式入手，利用土坡的极限破坏理论和结构体的塑性极限分析方法，研究了土钉支护结构旋转滑动破坏的可能性，并依此来分析土钉支护结构的稳定性。研究表明，对位于软弱地基中的土钉支护结构，土钉结构本身的极限破坏的可能性很大，在工程设计中宜采用钢管击入土钉，以增强其抗弯能力。
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| 关 键 词： | 土钉支护 稳定性 极限分析 |
| 文章编号： | 1000-7598-（2006）09-1559-04 |
| 收稿时间： | 2004-11-30 |
| 修稿时间： | 2004年11月30 |
Limit analysis of soil-nailing protecting structures |
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| TU Yu-min,WANG Jian-jiang.Limit analysis of soil-nailing protecting structures[J].Rock and Soil Mechanics,2006,27(9):1559-1562. |
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| Authors: | TU Yu-min WANG Jian-jiang |
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| Institution: | 1.Department of Civil Engineering, Zhejiang University, Hangzhou 310027, China; 2. College of Civil Engineering and Architecture, Zhejiang University, Hangzhou 310027, China |
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| Abstract: | The soil-nailing protecting structure is designed by limiting condition generally; and in all, to check its stability is important in design. According to the structure characteristics ,analyzing the breakage pattern of soil-nailing protecting structure, making use of the limit broke theories of the slope and the limit analysis method of the structure body, this paper studied that the revolving and gliding breakage of the soil-nailing protecting structure occurred possibly. Depending on this, the stability of the soil-nailing protecting structure was analyzed. The research results show that the soil-nailing structure was broken possibly itself in the weak foundation. The steel pipe shot buries soil-nailing was properly adopted in order to strengthen its bending resistance in engineering design. |
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| Keywords: | soil-nailing protection stability limit analysis |
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