钻炸损伤对隧道开挖塑性区之发展影响探讨

张伟哲; 陈志南

doi:10.3973/j.issn.1672-741X.2014.S.023

隧道建设 >

2014 , Vol. 34 >Issue 增刊: 141 - 144

DOI: https://doi.org/10.3973/j.issn.1672-741X.2014.S.023

研究与探索

钻炸损伤对隧道开挖塑性区之发展影响探讨

张伟哲 ,
陈志南

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（台湾科技大学营建工程系，台北 10607）

张伟哲（1988—），台湾云林人，2010年毕业于台湾科技大学，隧道专业，硕士，现攻读隧道及地下结构工程方面数值仿真分析。

收稿日期: 2014-06-13

网络出版日期: 2014-08-11

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Development of Plasticized Zone in Tunneling due to Blasting Damage

Weiche CHANG ,
Cheenan CHEN

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(Department of Construction Engineering , NTUST , Taipei 10607)

Received date: 2014-06-13

Online published: 2014-08-11

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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。

关键词： 钻炸损伤; 三维应力再分配; 隧道塑性区

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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(增刊) : 141 -144 . DOI: 10.3973/j.issn.1672-741X.2014.S.023

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.

Key words： blasting damage; threedimensional stress redistribution; plasticized zone in tunneling

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