| 基于FLAC~(3D)的大伙房水库引水隧洞围岩变形分析 |
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| 引用本文： | 刘凯,杨子荣.基于FLAC~(3D)的大伙房水库引水隧洞围岩变形分析[J].中国西部科技,2010,9(11):27-28. |
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| 作者姓名： | 刘凯 杨子荣 |
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| 作者单位： | 辽宁工程技术大学资源与环境工程学院,辽宁阜新,123000 |
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| 摘 要： | 圆形洞室开挖后,使原来处于挤压状态的围岩失去支撑而向洞内松动变形;如果这种变形超过了围岩本身所能承受的能力,则围岩就要发生破坏。本文应用FLAC3D数值模拟软件对15+800～15+900段隧洞围岩的变形进行了分析和评价。结果表明,地下洞室开挖穿过断层带时,围岩的塑性区域会增大;围岩在同一开挖方式下,破碎带及其周围围岩变形规律基本相同,但位移值差异较大。
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| 关 键 词： | FLAC3D 隧洞 断层 围岩变形 |
Surrounding Rocks Deformation Analysis of Dahuofang Diversion Tunnel Based On FLAC3D |
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| LIU Kai,YANG Zi-rong.Surrounding Rocks Deformation Analysis of Dahuofang Diversion Tunnel Based On FLAC3D[J].Science and Technology of West China,2010,9(11):27-28. |
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| Authors: | LIU Kai YANG Zi-rong |
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| Institution: | (College of Resource and Environment Engineering,Liaoning Technical University,Fuxin,Liaoning 123000) |
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| Abstract: | After the round caverns are excavated,the surrounding rocks in the state of being pressed become unsupported and deformed,and even they will be damaged.Based on 3D Fast Lagrangian Analysis of Continua method,the surrounding rocks deformation of 15＋800～ 15＋900 section of Dahuofang diversion tunnel is analyzed and evaluated by FLAC3D numerical simulation software.The results show that the plastic region of surrounding rocks will be expanded when underground caverns are excavated through fault zones,and deformation behavior of crushed zones and surrounding rocks around them are basically the same,but their displacement value are greatly different in the same way of excavation. |
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| Keywords: | FLAC3D |
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