| 钻炸损伤对隧道开挖塑性区之发展影响探讨 |
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| 引用本文： | 张伟哲,陈志南.钻炸损伤对隧道开挖塑性区之发展影响探讨[J].隧道建设,2014,34(Z1):141-144. |
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| 作者姓名： | 张伟哲 陈志南 |
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| 作者单位： | （台湾科技大学营建工程系， 台北 10607） |
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| 摘 要： | 针对钻炸隧道周围损伤区域之工程特性进行探讨，利用三维数值分析软件FLAC 3D进行模式建置与数值模拟。首先就隧道假设没有损伤之情况模拟轮进开挖，针对三维应力再分配及塑性区发展等进行探讨；接着模拟隧道钻炸开挖产生损伤情况，再将此2种情况进行分析对比，最后归纳汇整出钻炸损伤对隧道应力变形、塑性区之发展影响。
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| 关 键 词： | 钻炸损伤 三维应力再分配 隧道塑性区 |
| 收稿时间： | 2014-06-13 |
Development of Plasticized Zone in Tunneling due to Blasting Damage |
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| Weiche CHANG,Cheenan CHEN.Development of Plasticized Zone in Tunneling due to Blasting Damage[J].Tunnel Construction,2014,34(Z1):141-144. |
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| Authors: | Weiche CHANG Cheenan CHEN |
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| Institution: | (Department of Construction Engineering , NTUST , Taipei 10607) |
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| Abstract: | This research focuses on the engineering characterization of plasticized zone in tunneling due to blasting damage. Simulation model is established and numerical simulation is made by means of three dimensional numerical software FLAC 3D. Firstly, the three dimensional stress redistribution and plasticized zone development are analyzed, assuming no blasting damage; Then, blasting damage is introduced; Finally, comparison and contrast is made between the simulation result of stress redistribution and plasticized zone development under non damage condition and that under damage condition, and the influence of the blasting damage on the stress redistribution and plasticized zone development is summarized. |
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| Keywords: | blasting damage three dimensional stress redistribution plasticized zone in tunneling |
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