| 土钉支护体系基于增量法的设计计算 |
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| 引用本文： | 郭院成,李峰,秦会采. 土钉支护体系基于增量法的设计计算[J]. 建筑科学, 2007, 23(7): 54-56 |
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| 作者姓名： | 郭院成 李峰 秦会采 |
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| 作者单位： | 郑州大学,土木工程学院,郑州,450002;同济大学,地下建筑工程系,上海,200092 |
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| 摘 要： | 土钉支护机理为加固机制上的锚固机制;土钉支护中土钉力的增量计算方法能较准确地反映施工过程对土钉力产生、发展、变化的决定性影响。本文从边坡锚固稳定的思想出发,采用增量计算方法计算了土钉支护中土钉的受力,解决了采用该方法时的计算模式、开挖过程中的土钉增量比例系数的确定等问题。最后根据本文方法通过实际工程的增量法设计计算,并通过现场监测结果验证了增量法计算结果的合理性。
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| 关 键 词： | 土钉支护 增量法 边坡锚固 土钉轴力计算 |
| 文章编号： | 1002-8528（2007）07-0054-03 |
| 收稿时间： | 2006-01-05 |
| 修稿时间： | 2006-01-05 |
Soil Pressure Results Determined by Incremental Approach in Soil-Nailing Structures |
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| GUO Yuan-cheng,LI Feng,QIN Hui-lai. Soil Pressure Results Determined by Incremental Approach in Soil-Nailing Structures[J]. Building Science, 2007, 23(7): 54-56 |
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| Authors: | GUO Yuan-cheng LI Feng QIN Hui-lai |
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| Affiliation: | 1.School of Civil Engineering, Zhengzhou University, Zhengzhou 450002, China ;2.Department of Under-Ground Building Engineering, Tongji University, Shanghai 200092, China |
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| Abstract: | The working mechanism of Soil-Nailing structure is a combination of soil reinforcing and anchoring.The Incremental Approach(IA),which is employed to determine the force in soil nails,is able to describe the main factors which result in the nail force's occurrence,development and changing.Based on the anchorage theory in slope stability,the IA concept is applied to determine the force in nails.In this way,the calculation model,the nail force increment coefficient and some other issues are discussed.Finally,with a case study,by using the suggested methodology in the paper,the Incremental Approach is verified by the field deformation monitoring results. |
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| Keywords: | soil-nailing retaining structure incremental approach slope anchorage axis force calculation of soil-nails |
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