| 层状地层全长粘结型锚杆锚固力学效应分析 |
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| 引用本文： | 周丹.层状地层全长粘结型锚杆锚固力学效应分析[J].岩土工程技术,2012(1):28-30,45. |
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| 作者姓名： | 周丹 |
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| 作者单位： | 湖南楚翰建设工程有限公司,湖南长沙410116 |
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| 摘 要： | 考虑地层分层特征，根据剪切位移法基本原理，推导了拉拔荷载作用下层状地层全长粘结型锚杆位移、轴力及锚固体周边剪应力解析解，并结合FLAC模拟算例对比验证该方法的可行性；研究发现地层间界面处锚杆周边剪应力及轴力分布分别存在突变点和折点，其变化程度与地层物理力学性质有关，对此，提出了层状地层全长粘结型锚杆布置方案的建议。
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| 关 键 词： | 层状地层 全长粘结型锚杆 拉拔荷载 剪切位移法 力学效应分析 |
Mechanical Effect Analysis of Wholly Grouted Anchor in Layered Soil |
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| Zhou Dan.Mechanical Effect Analysis of Wholly Grouted Anchor in Layered Soil[J].Geotechnical Engineering Technique,2012(1):28-30,45. |
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| Authors: | Zhou Dan |
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| Institution: | Zhou Dan (Chuhan Construction Engineering Co. , LTD of Hunan,Changsha 410116, Hunan, Chins) |
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| Abstract: | Based on the shear displacement method and characteristics of soil distribution, the analytic solutions arepresented for anchor displacement, shear stress and axial force of wholly grouted anchor embedded in layered soil under pull force, the correctness is verified by engineering example compared with FLAC numerical calculation. It is discovered that the distribution curves of anchor shear stress have jump points, and the distribution curves of anchor axial force have turned the points in the layered soil interface, the amplitude of variation have some connection with physical and mechanical properties of layered soils, so, the installment measure of wholly grouted anchor embedded in layered soil is suggested. |
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| Keywords: | layered soil wholly grouted anchor pull force shear displacement method mechanical effect analysis |
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