| 压力型锚杆锚固段的应力分布规律研究 |
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| 引用本文： | 卢黎,张永兴,吴曙光. 压力型锚杆锚固段的应力分布规律研究[J]. 岩土力学, 2008, 29(6): 1517-1520 |
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| 作者姓名： | 卢黎 张永兴 吴曙光 |
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| 作者单位： | 重庆大学 土木工程学院，重庆 400045 |
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| 摘 要： | 根据Kelvin解，推导了压力型锚杆锚固段的弹性黏结应力和正应力分布方程。在推导过程中，考虑了三向应力状态对锚固段黏结应力的提高作用。经过与现场试验实测数据的对比分析，验证了理论计算公式的可靠性。采用软质岩体条件下的参数，对锚固段应力分布进行了计算，总结了岩石条件下锚固段应力分布特点，并分析了各种岩土参数变化对锚固段应力分布的影响，为压力型锚杆的进一步理论研究和工程实践提供了基础。
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| 关 键 词： | 压力型锚杆 锚固段 黏结应力 弹性分析 |
| 文章编号： | 1000-7598-(2008)06-1517-04 |
| 收稿时间： | 2006-10-10 |
| 修稿时间： | 2006-10-10 |
Distribution of stresses on bonded length of compression type rock bolt |
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| LU Li,ZHANG Yong-xing,WU Shu-guang. Distribution of stresses on bonded length of compression type rock bolt[J]. Rock and Soil Mechanics, 2008, 29(6): 1517-1520 |
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| Authors: | LU Li ZHANG Yong-xing WU Shu-guang |
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| Affiliation: | College of Civil Engineering ,Chongqing University, Chongqing 400045, China |
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| Abstract: | According to the Kelvin’s solution，considering three-dimensional stress state，the distribution formulas of normal stress and shear stress(that is, friction on the interface between the grout and the rock) along bonded length of compression type rock bolt are derived. Comparing with the in-situ experimental data, dependability of the formulas are proved. The stresses distribution along bonded length is analyzed with various parameters of soft rocks. This research offers a basis for the compression type rock bolts. |
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| Keywords: | compression type rock bolt bonded length shear stress elastic analysis |
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