| 抗浮锚杆应力-应变状态的线弹性理论分析 |
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| 引用本文： | 陈棠茵,王贤能.抗浮锚杆应力-应变状态的线弹性理论分析[J].岩土力学,2006,27(11):2033-2036. |
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| 作者姓名： | 陈棠茵 王贤能 |
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| 作者单位： | 1.西南科技大学 土木与建筑工程学院，四川 绵阳 621010；2.深圳工勘岩土工程有限公司，深圳 518026 |
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| 摘 要： | 假定抗浮锚杆各部分贡献的位移与锚杆轴力均呈线弹性关系，运用力学原理分析锚杆轴力与锚侧摩阻力、锚-土变形之间的相互关系，推导出锚杆的摩阻力、轴力及各部分变形与锚杆各参数的相互关系。实例验证结果表明：基于线弹性模型基础上建立的摩阻力、轴力和位移公式能够较好地描述垂向抗浮锚杆在弹性变形阶段的内力和变形形态；获得了抗浮锚杆摩阻力和剪切位移沿锚固长度的分布规律；证实了锚土界面处变形为土层抗浮锚杆变形的主要部分。
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| 关 键 词： | 抗浮锚杆 线弹性 摩阻力 轴力 剪切模量 |
| 文章编号： | 1000-7598-（2006）11-2033-05 |
| 收稿时间： | 2004-10-11 |
| 修稿时间： | 2004-10-112005-01-25 |
Linear elastic analysis of stress-strain state of anti-float anchor |
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| CHEN Tang-yin,WANG Xian-neng.Linear elastic analysis of stress-strain state of anti-float anchor[J].Rock and Soil Mechanics,2006,27(11):2033-2036. |
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| Authors: | CHEN Tang-yin WANG Xian-neng |
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| Institution: | 1.College of Civil and Architectural Engineering Southwest University of Science and Technology, Mianyang 621010, China 2.Shenzhen Gongkan Geotechnical Engineering Co. Ltd., Shenzhen 518026, China |
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| Abstract: | On the assumption that any part of displacement of anti-float anchor is linear elastic relation, the relations about frictional resistance, axial force and displacement between soil and bolt can be derived by applying the mechanics theory. The example shows that based on the linear elastic analysis model, the formulas of frictional resistance, axial force and displacement can describe the elastic stress and strain better. The distribution of frictional resistance and shear displacement along the anti- float anchoring length are obtained. It comfirms that the shear displacement between the bolt and surrounding soil is main displacement for the bolts buried in soil. |
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| Keywords: | anti-float anchor linear elasticity frictional resistance axial force shear modulus |
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