| 压力分散型锚索作用效果的数值模拟分析 |
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| 引用本文： | 夏元友,范卫琴,芮瑞,王艳丽. 压力分散型锚索作用效果的数值模拟分析[J]. 岩土力学, 2008, 29(11): 3144-3148 |
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| 作者姓名： | 夏元友 范卫琴 芮瑞 王艳丽 |
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| 作者单位： | 武汉理工大学,武汉,430070 |
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| 基金项目： | 国家自然科学基金 ， 湖北省青年杰出人才基金 ， 广东省科技计划 |
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| 摘 要： | 通过FLAC3D程序,用实体单元模拟了岩体和砂浆体,用结构单元来模拟锚索,在砂浆体和岩体间设置接触面,对锚索施加预应力时采用新的建模方法,即通过结构单元来模拟压力分散型锚索的承压板,代替在承压板的位置施加均布力的方法,建立预应力锚固数值仿真模型.通过模拟试验,分析了接触面单元、岩体单元以及砂浆体单元的应力云图等,更加清晰地显示了压力分散型预应力锚索作用下岩体沿锚索轴向的应力、砂浆体与孔壁之间的粘结应力分布等情况.
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| 关 键 词： | 压力分散型锚索 数值模拟 锚固机理 |
| 收稿时间： | 2007-02-06 |
Numerical simulation analysis of pressure diffusion anchor cable's effect mechanism |
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| XIA Yuan-you,FAN Wei-qin,RUI Rui,WANG Yan-li. Numerical simulation analysis of pressure diffusion anchor cable's effect mechanism[J]. Rock and Soil Mechanics, 2008, 29(11): 3144-3148 |
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| Authors: | XIA Yuan-you FAN Wei-qin RUI Rui WANG Yan-li |
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| Affiliation: | Wuhan University of Technology, Wuhan 430070, China |
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| Abstract: | In this paper ,the rock and mortar is simulated by solid mass element, the cable is simulated by structural element, the interface is setted between the rock and mortar, and the prestress is applied to the cable according to the new method in FLAC3D program,that is to say , the board in pressure diffusion anchor cable is simulated by structural element rather than the distributed loads gained by the theoretical analysis are applied to the board. And then the numerical simulation model of prestress anchorage... |
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| Keywords: | pressure dispersion-type cable numerical simulation anchoring and reinforcing mechanism |
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