| 大变形巷道锚杆力学特性的数值模拟 |
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| 引用本文： | 漆泰岳.大变形巷道锚杆力学特性的数值模拟[J].西安科技大学学报,2003,23(4):379-381. |
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| 作者姓名： | 漆泰岳 |
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| 作者单位： | 西南交通大学,土木工程学院,四川,成都,610031 |
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| 基金项目： | 高等学校博士学科点专项基金资助项目(97029006) |
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| 摘 要： | 通过现场观测和实验室试验,对大变形巷道锚杆的力学特性进行了测试,揭示了锚杆与围岩相互作用全过程呈现:初撑、增阻、恒阻、降阻直至失效。论述了锚杆阻力下降和失效是大变形巷道锚杆支护所具有的基本规律。为此,对FLAC3.3中锚杆单元模型进行了修正,使其具备模拟锚杆损伤软化的功能,并将其成功地应用于实际工程中。
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| 关 键 词： | 大变形巷道 锚杆 力学特性 围岩控制 |
| 文章编号： | 1671-1912(2003)04-0379-03 |
| 修稿时间： | 2003年4月10日 |
Mechanical characteristics of rock bolts in the roadway with large deformation |
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| QI Tai-yue.Mechanical characteristics of rock bolts in the roadway with large deformation[J].JOurnal of XI’an University of Science and Technology,2003,23(4):379-381. |
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| Authors: | QI Tai-yue |
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| Abstract: | The mechanical characteristics of rock bolts in the roadway with large deformation were achieved from the in-situ monitoring and laboratory experiments, which show a process of pretension, rising, stabilizing, declining and the function-losing. The declining and the function-losing, damage and softening, are the mechanical characteristics of rock bolts in roadways with large deformation. Furthermore, the model of bolt element in FLAC 3.3, a software, was amended. As a result, the function of damage and softening of rock bolts may be simulated in this software. The research result has been successfully applied. |
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| Keywords: | roadway with large deformation rock bolt mechanical characteristics control of rocks |
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