[1]曹兴松,吴梦军,刘世雄,等.山地陡倾小交角层状岩体隧道围岩变形模拟[J].山地学报,2013,(04):385.
　CAO Xingsong,WU Mengjun,LIU Shixiong,et al.Deformation Simulation of Steep overdip Stratified Surrounding Rock for Small Angle between Tunnel and Rock Strike[J].Mountain Research,2013,(04):385.
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山地陡倾小交角层状岩体隧道围岩变形模拟()
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《山地学报》[ISSN:1008-2186/CN:51-1516]

卷:
期数:
2013年04期
页码:
385
栏目:
山地灾害
出版日期:
2013-01-01

文章信息/Info

Title:
Deformation Simulation of Steep overdip Stratified Surrounding Rock for Small Angle between Tunnel and Rock Strike
作者:
曹兴松;吴梦军;刘世雄;方林;王波;
1. 重庆建工集团股份有限公司，重庆 401122；
2. 招商局重庆交通科研设计院有限公司，重庆 400067
Author(s):
CAO Xingsong; WU Mengjun ; LIU Shixiong; FANG Lin; WANG Bo
1. Chongqing Construction Engineering Group Co., Ltd.，Chongqing 401122，China;
2.China Merchants Chong qing Communications Research & Design Institute Co., Ltd. Chong qing 400067，China
关键词:
陡倾; 层状岩体; 围岩变形; 模拟试验
Keywords:
steep overdip;  stratified rock mass;  surrounding rock deformation;  model test
分类号:
P642,P554
文献标志码:
A
摘要:
陡倾小交角层状岩体隧道围岩变形特征和一般的均质岩体隧道是不一样的。通过有限元计算和模型试验研究手段,以重庆涪南高速公路鸭江隧道工程为例,对陡倾小交角层状岩体隧道开挖过程中围岩的变形特征和机理进行了深入分析。研究结果表明:对于陡倾小交角层状岩体来说,层理面是主要控制结构面,隧道的开挖会导致一定范围内的岩层形成临空面,这部分岩层会向洞室产生滑移,从而引起地表的较大沉降;岩层倾角越大,地表沉降也会随之增大;与一般均质岩体隧道不同,陡倾小交角层状岩体隧道围岩变形具有非对称性,最大变形一般发生在顺层向。研究结论可供今后陡倾层状岩体隧道的施工设计参考。
Abstract:
Deformation characteristics of surrounding rock of tunnel in layered rock mass with steep dip angle and tunnel in homogenous rock mass is different. Based on Yajiang tunnel in funan highway in Chongqing, this paper makes a thorough analysis on deformation characteristics and mechanism of surrounding rock during excavation of tunnel in layered rock mass with steep dip angle by finite element calculation and model test. Research results show that: For layered rock mass with steep dip angle, bedding plane is the main structural plane, the tunnel excavation will cause the rock stratum in a certain range to become a free face, which will slip to the cavern to cause larger ground surface settlement. As the dip angle of rock stratum increases, the ground surface settlement will also increase. Deformation of surrounding rock of tunnel in layered rock mass with steep dip angle is asymmetric, and the Maximum deformation generally occurs in the bedding position, which is different from tunnel in homogenous rock mass. The conclusions can provide reference for future construction design of tunnel in layered rock mass with steep dip angle.

备注/Memo

备注/Memo:
收稿日期(Received date)：2013-05-25；改回日期(Accepted) : 2013-06-21。
基金项目（Foundation item）：重庆市交通委员会科技项目2010-5。[Chongqing Municipal Commitlee of Science and Techonlogy Project,No.2010-5.]
作者简介（Biography）：曹兴松（1972-），男，天津人，教授级 高级工程师，博士后，主要从事道桥及岩土、地下工程的研究。[Cao xing Song (1972-), male, Tianjin, senior engineer, postdoctoral, mainly engaged in bridge and geotechnical and underground engineering.] E-mail: songcx@126.com
更新日期/Last Update: 1900-01-01