| 基于ABAQUS的高强让压锚杆数值模拟及支护评价 |
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| 引用本文： | 项力,肖明,孟鹏.基于ABAQUS的高强让压锚杆数值模拟及支护评价[J].水电能源科学,2016,34(5):141-145. |
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| 作者姓名： | 项力 肖明 孟鹏 |
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| 作者单位： | 武汉大学 a. 水资源与水电工程科学国家重点实验室； b. 水工岩石力学教育部重点实验室， 湖北 武汉 430072) |
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| 基金项目： | 国家重点基础研究发展计划项目(2015CB057904)；教育部博士点基金项目(20130141110015) |
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| 摘 要： | 为实现高强让压锚杆的剪切加固与主动让压性能在商业软件中的数值模拟，依据高强让压锚杆的力学模型和变形模式，考虑其横向剪切性质及主动让压性能，利用FORTRAN语言平台对材料二次开发，并嵌入ABAQUS软件平台，在此基础上引入有限元强度折减法，同时从围岩与锚杆两方面评价高强让压锚杆的支护效果。结合滇中引水工程楚雄取引水隧洞支护实例，进一步验证了高强让压锚杆支护的有效性，为高强让压锚杆的数值分析提供了一种新方法和一个新平台。
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| 关 键 词： | 高强让压锚杆 ABAQUS二次开发 有限元强度折减 数值模拟 |
Numerical Simulation and Support Evaluation of High Strength Yieldable Bolts Based on ABAQUS |
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| Abstract: | To simulate the performance of shear reinforcement and initiatively yield of the high strength yieldable bolts in commercial software, according to the mechanical model and deformation pattern, and considering the lateral shear and initiatively yield performance, a secondary development of the material of the high strength yieldable bolts is developed based on Fortran and embedded to ABAQUS. On this basis, the strength reduction of FEM (SRFEM) is introduced to evaluate the support effect from both the surrounding rock and bolt sides. Combining Chuxiong tunnel support of Dianzhong diversion water project, the effectiveness of the high strength yieldable bolts is verified. Thus, it provides a new method and a new platform to simulate the high strength yieldable bolts. |
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