| 疏排桩锚-土钉墙组合支护结构稳定性分析 |
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| 引用本文： | 吴忠诚,杨志银,罗小满,汪新平,李良祥. 疏排桩锚-土钉墙组合支护结构稳定性分析[J]. 岩石力学与工程学报, 2006, 25(Z2): 3607-3613 |
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| 作者姓名： | 吴忠诚 杨志银 罗小满 汪新平 李良祥 |
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| 作者单位： | 1. 冶金工业部建筑研究总院,深圳分院,广东,深圳,518054;中山大学,地球科学系,广东,广州,510275
2. 冶金工业部建筑研究总院,深圳分院,广东,深圳,518054 |
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| 摘 要： | 疏排桩锚-土钉墙组合支护结构是复合土钉墙发展的趋势之一,此结构可有效地突破复合土钉墙在控制及预测位移方面的局限性,并增大了土钉墙的支护深度,增强其适用性及应用范围。以拱形理论为基础,分析土压力的传递及应力重分布的机制与特点,研究支护结构变形性状特征。据此,提出该支护方式的局部及整体稳定性计算公式,建立了受力及稳定性计算模型,并结合实例进行了相关验证。
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| 关 键 词： | 土力学 疏排桩 土钉墙 稳定性 土拱作用 土压力 |
| 文章编号： | 1000-6915(2006)增2-3607-07 |
| 修稿时间： | 2006-05-18 |
STABILITY ANALYSIS OF SCATTERED ROW PILE-SOIL-NAILED WALL PROTECTION STRUCTURE |
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| WU Zhongcheng,YANG Zhiying,LUO Xiaoman,WANG Xinping,LI Liangxiang. STABILITY ANALYSIS OF SCATTERED ROW PILE-SOIL-NAILED WALL PROTECTION STRUCTURE[J]. Chinese Journal of Rock Mechanics and Engineering, 2006, 25(Z2): 3607-3613 |
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| Authors: | WU Zhongcheng YANG Zhiying LUO Xiaoman WANG Xinping LI Liangxiang |
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| Abstract: | Scattered row piles-soil-nailed wall protection structure is one of important directions of the composite soil-nailed wall.It can effectively avoid the disadvantages of controlling and evaluation the displacement of the composite soil-nailed wall.When properly employed,its protection depth can be extended and the application scope can be enlarged.Based on soil arch effect theory,the mechanism and characteristics of transferring and redistributing of the soil pressure are analyzed;and the strain characteristics of the protection(support) structure is researched.The formula for calculating the local and holistic stability of the protection structure is brought forward;and the calculating model for analyzing the stress and stability of the protection structure is set up.Finally,the model is validated by an engineering case. |
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| Keywords: | soil mechanics scattered row piles soil-nailed wall stability soil arch effect earth pressure |
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