| 基于ABAQUS的地下隧洞开挖及围岩稳定性分析 |
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| 引用本文： | 都辉,任旭华,张继勋,吾克尔.吾买尔.基于ABAQUS的地下隧洞开挖及围岩稳定性分析[J].三峡大学学报(自然科学版),2014(2):28-32. |
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| 作者姓名： | 都辉 任旭华 张继勋 吾克尔.吾买尔 |
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| 作者单位： | 河海大学 |
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| 基金项目： | 国家科技支撑计划课题(2012BAK03B04);河海大学水文水资源与水利工程科学国家重点实验室开放基金(2011491211) |
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| 摘 要： | 以ANSYS为平台建立了有限元分析模型,采用ABAQUS作为计算和后处理软件,对工程区的地应力场开展了研究,分析了有断层贯穿的隧洞开挖及支护后围岩的稳定性,探究了提高围岩体参数的等效模拟方法的可行性.分析结果表明,断层对隧洞开挖后的围岩应力及位移均有不利的影响,容易出现应力集中现象;锚杆采用等效参数模拟的结果是合理、简捷的;支护系统提高了围岩体的稳定性.
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| 关 键 词： | ABAQUS 地应力 稳定性 断层 锚杆 支护系统 |
Excavation of Underground Tunnels and Stability Analysis of Surrounding Rock Based on ABAQUS |
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| Institution: | Du Hui, Ren Xuhua, Zhang Jixun, Wukeer Wumaier (College of Water Conservancy ＆ Hydropower Engineering, Hohai Univ. , Nanjing 210098, China) |
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| Abstract: | The platform of ANSYS is used to establish the finite element used of SU as the calculating and rrounding rock throug post-processing software to study ground h a fault is also analyzed when the tunnel stress analysis model; and ABAQUS is field of project area. The stability is excavated and the surrounding rock is supported. The feasibility of equivalent parameter method that is improving the material properties is investigated. The results show that the fault has disadvantageous influence on stress and displacement of surrounding rock when the tunnel is excavated. The stress concentration phenomenon easily occurs. The result of using equivalent parameter method to simulate anchor bolts action is reasonable and simple. The supporting system improves the stability of surrounding rock mass. |
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| Keywords: | ABAQUS ground stress stability fault anchor bolts supporting system |
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