中文核心期刊
CSCD来源期刊
中国科技核心期刊
RCCSE中国核心学术期刊

重庆交通大学学报(自然科学版) ›› 2008, Vol. 27 ›› Issue (2): 228-231.

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裸洞隧道病害形成耦合机理分析

李明1,2, 陈洪凯1, 叶四桥1,2   

  1. 1. 重庆交通大学 岩土工程研究所, 重庆 400074;
    2. 西南交通大学 土木工程学院, 四川 成都 610031
  • 收稿日期:2007-06-15 修回日期:2007-08-30 出版日期:2008-04-20 发布日期:2016-11-14
  • 作者简介:李明(1978-),男,河南南阳人,讲师,博士研究生,主要从事危岩及公路隧道健康研究。E-mail:lijianming7805@126.com;Tel:13594153628。
  • 基金资助:
    国家自然科学基金项目(50678182);重庆交通大学青年基金资助项目

Coupling Mechanism Analysis on Cavern Tunnel Disease Forming

LI Ming1,2, CHEN Hong-kai1, YE Si-qiao1,2   

  1. 1. Instisute of Geotechnical Engineering, Chongqing Jiaotong University, Chongqing 400074, China;
    2. School of Civil Engineering, Southwest Jiaotong University, Sichuan Chengdu 610031, China
  • Received:2007-06-15 Revised:2007-08-30 Online:2008-04-20 Published:2016-11-14

摘要: 裸洞隧道病害的产生主要是地下应力场在损伤、渗流、温度等因素的耦合作用下形成的,是非常复杂的非线性耦合过程。从裸洞隧道开挖后的弹塑性应力场出发,使用Bui损伤模型与地下水渗流场组成的激励-反应耦合系统加以研究病害形成的耦合机理。结果表明,裸洞隧道病害明显产生是损伤和渗流耦合强度因子在0.5左右产生的,随着隧道围岩裂隙的扩展和损伤程度的加剧,围岩塑性区半径随水压力的增加而迅速增大,加速隧道病害的产生,这为探明裸洞隧道病害形成机理研究、治理与防护起到一定的理论指导意义。

关键词: 裸洞隧道, 病害, 非线性耦合, 渗流

Abstract: Cavern tunnel diseases, mostly forming underground stress field under the action of damage,seepage,temperature and other factors, are very complicated nonlinear coupling process. Using the stimulate-response coupling system made up of Bui damage model and seepage field, the result shows that the diseases will be formed obviously when the coupling strength factor is about 0.5, with the cranny expanding and the damage increasing in the surrounding rock; the plastic radius of underground rock is increasing with the porous hydraulic pressure; it speeds tunnel diseases to come into being; it has some positive significance with guidance to prove up the coupling mechanism, the repair and the protection of the cavern tunnel.

Key words: cavern tunnel, disease, nonlinear coupling, seepage

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