软弱破碎连拱隧道松动区模型试验与分析

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摘要工程中连拱隧道围岩松动范围的确定对采取合理的支护手段和方法具有重要的理论价值和实际意义。以埋深100 m的公路连拱隧道为研究对象，利用室内模型试验，对软弱破碎围岩松动区的发展过程及范围进行研究，并采用压力盒量测围岩不同部位的应力，分析围岩松动区的应力场特征。利用FLAC软件对模型试验进行数值模拟，通过应力分析法和极限拉应变法判别松动区范围，并与模型试验结果进行对比分析，发现松动区内围岩切向应力大于径向应力，深埋条件下围岩更容易形成压力拱，应力分析法所得的松动区与模型试验结果更为接近，建议深埋隧道采用应力分析法判断松动区范围。

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关键词 ：隧道工程, 连拱隧道, 模型试验, 数值模拟, 松动区

Abstract：In the field of multi-arch tunnel，determining loose zone of surrounding rock has important theoretical value and practical significance for taking appropriate method for support in actual projects. By taking highway multi-arch tunnel with overburden depths of 100 m for example，a model test based on similar principle is implemented to study loose zone of the soft and fractured surrounding rock，and the characteristics of stress field in loose zone are analyzed through measuring pressure of different locations by pressure cells. FLAC software is applied to simulate model test. The range of loose zone is identified by stress analysis method and ultimate tensile strain method. Comparing with results of model test shows that tangential stress is greater than radius stress in loose zone，surrounding rock is more likely to form pressure arch under deep overburden condition. The range of loose zone decided by stress analysis method is closer to the results of model test，identifying loose zone is feasible for deep overburden tunnel by stress analysis method.

Key words： tunnelling engineering multi-arch tunnel model test numerical simulation loose zone

收稿日期: 2012-01-12

引用本文:

白浪峰1，2，徐前卫3，田龙岗1，2，段群苗4. 软弱破碎连拱隧道松动区模型试验与分析[J]. 岩石力学与工程学报, 2013, 32(s2): 3610-3618.
BAI Langfeng1，2，XU Qianwei3，TIAN Longgang1，2，DUAN Qunmiao4. MODEL TEST AND ANALYSIS OF LOOSE ZONE IN SOFT AND CRACKED SURROUNDING ROCK OF MULTI-ARCH TUNNEL. , 2013, 32(s2): 3610-3618.

链接本文:

https://rockmech.whrsm.ac.cn/CN/Y2013/V32/Is2/3610

[1]	林刚. 连拱隧道施工力学行为研究[博士学位论文][D]. 成都：西南交通大学，2005.(LIN Gang. Research on mechanical behavior of double-arch tunnel construction[Ph. D. Thesis][D]. Chengdu：Southwest Jiaotong University，2005.(in Chinese)) " target="_blank">
[2]	KAMATA H，MASHIMO H. Centrifuge model test of tinnel face reinforcement by bolting[J]. Tunneling and Underground Space Technology，2003，18(2/3)：205-207. " target="_blank">
[3]	MEGUID M A，SAADA O，NUNES M A，et al. Physical modeling of tunnels in soft ground：a review[J]. Tunneling and Underground Space Technology，2008，23(1)：187-192. " target="_blank">
[4]	深泰. 地质力学模型试验技术的进展[J]. 长江科学院院报， 2001，18(5)：32-36.(SHEN Tai. Development of geomechanic model experiment techniques[J]. Journal of Yangtze River Scientific Research Institute，2001，18(5)：32-36.(in Chinese))
[5]	王兵，谢锦昌. 偏压隧道模型试验及可靠度分析[J]. 工程力学，1998，15(1)：85-87.(WANG Bing，XIE Jinchang. Model test and reliability analysis for an unsymmetrically loaded tunnel[J]. Engineering Mechanics，1998，15(1)：85-87.(in Chinese))
[6]	STERPI D. An analysis of geotechnical problems involving strain softening effects[J]. International Journal for Numerical and Analytical Mechanics in Geomechanics，1999，23(13)：1 427-1 446. " target="_blank">
[7]	王戍平. 破碎围岩隧道的模拟试验研究[博士学位论文][D]. 杭州：浙江大学，2004.(WANG Shuping. Model test study on tunnel within cracked surrounding rock[Ph. D. Thesis][D]. Hangzhou：Zhejiang University，2004.(in Chinese)) " target="_blank">
[8]	董方庭，宋宏伟，郭志宏，等. 巷道围岩松动圈支护理论[J]. 煤炭学报，1994，19(1)：21-31.(DONG Fangting，SONG Hongwei，GUO Zhihong，et al. Roadway support theory based on broken rock zone[J]. Journal of China Coal Society，1994，19(1)：21-31.(in Chinese)) " target="_blank">
[9]	来弘鹏，林永贵，谢永利，等. 不同应力场下软弱围岩公路隧道的力学特征试验[J]. 中国公路学报，2008，21(4)：82-87.(LAI Hongpeng，LIN Yonggui，XIE Yongli，et al. Mechanical characteristic tests of soft-weak surrounding rock highway tunnel under different stress fields[J]. China Journal of Highway and Transport，2008，21(4)：82-87.(in Chinese)) " target="_blank">
[10]	林刚. 连拱公路隧道的合理施工方法研究[硕士学位论文][D]. 成都：西南交通大学，2002.(LIN Gang. Study on the reasonable construction technology of twin-bore highway tunnel[M. S. Thesis][D]. Chengdu：Southwest Jiaotong University，2002.(in Chinese)) " target="_blank">
[11]	顾金才，明治清. 锚固洞室洞周应变分布特征模型试验研究[J]. 岩土力学，1997，18(8)：112-113.(GU Jincai，MING Zhiqing. Model test study about strain distribution around anchorage tunnel surface[J]. Rock and Soil Mechanics，1997，18(8)：112-113.(in Chinese)) " target="_blank">
[12]	朱合华，黄锋，徐前卫. 变埋深下软弱破碎隧道围岩渐进性破坏试验与数值模拟[J]. 岩石力学与工程学报，2010，29(6)：1 113- 1 120.(ZHU Hehua，HUANG Feng，XU Qianwei. Model test and numerical simulation for progressive failure of weak and fractured tunnel surrounding rock under different overburden depths[J]. Chinese Journal of Rock Mechanics and Engineering，2010，29(6)：1 113- 1 120.(in Chinese)) " target="_blank">
[13]	林杭，曹平，赵延林，等. 强度折减法在Hoek-Brown准则中的应用[J]. 中南大学学报：自然科学版，2007，38(6)：1 219-1 223. (LIN Hang，CAO Ping，ZHAO Yanlin，et al. Application of strength reduction method in Hoek-Brown criterion[J]. Journal of Central South University：Science and Technology，2007，38(6)：1 219- 1 223.(in Chinese)) " target="_blank">
[14]	蒋树屏，刘洪洲，鲜学福. 大跨度扁坦隧道动态施工的相似模拟与数值分析[J]. 岩石力学与工程学报，2000，19(5)：567-572.(JIANG Shuping，LIU Hongzhou，XIAN Xuefu. Physical simulation and numerical analysis of dynamic construction behavior of large-span flat tunnel[J]. Chinese Journal of Rock Mechanics and Engineering，2000，19(5)：567-572.(in Chinese))
[15]	汪成兵，朱合华. 隧道塌方机制及其影响因素离散元模拟[J]. 岩土工程学报，2008，30(3)：450-456.(WANG Chengbing，ZHU Hehua. Physical simulation and numerical analysis of dynamic construction behavior of large-span flat tunnel[J]. Chinese Journal of Geotechnical Engineering，2008，30(3)：450-456.(in Chinese))
[16]	马涛. 浅埋隧道塌方处治方法研究[J]. 岩石力学与工程学报，2006，25(增2)：3 976-3 981.(MA Tao. Treatment method for collapse treatment of shallow-buried tunnel[J]. Chinese Journal of Rock Mechanics and Engineering，2006，25(Supp.2)：3 976-3 981.(in Chinese)) " target="_blank">
[17]	MANDAL S K，SINGH M M. Evaluating extent and causes of overbreak in tunnels[J]. Tunneling and Underground Space Technology，2009，24(1)：24-36. " target="_blank">
[18]	JEON S，KIM J，SEO Y，et al. Effect of a fault and weak plane on the stability of a tunnel in rock-a scaled model test and numerical analysis[J]. International Journal of Rock Mechanics and Mining Sciences，2004，41(3)：1-6. " target="_blank">
[19]	梁晓丹，刘刚，赵坚. 地下工程压力拱拱体的确定与成拱分析[J]. 河海大学学报：自然科学版，2005，33(3)：314-316.(LIANG Xiaodan，LIU Gang，ZHAO Jian. Identification and analysis on pressure arch in underground engineering[J]. Journal of Hohai University：Natural Sciences，2005，33(3)：314-316.(in Chinese)) " target="_blank">
[20]	梁晓丹，宋宏伟，赵坚. 隧道压力拱与围岩变形关系[J]. 西安科技大学学报，2008，28(4)：647-649.(LIANG Xiaodan，SONG Hongwei，ZHAO Jian. Relationship between pressure arch and deformation of surrounding rock in tunnel[J]. Journal of Xi?an University of Science and Technology，2008，28(4)：647-649.(in Chinese)) " target="_blank">
[21]	楚泽涵. 声波测井原理[M]. 北京：石油工业出版社，1987：120-123. (CHU Zehan. Principles of acoustic logging[M]. Beijing：Petroleum Industry Press，1987：120-123.(in Chinese)) " target="_blank">
[22]	STACEY T R. 地下岩石力学实用手册[M]. 朱浮声译. 北京：煤炭工业出版社，1990：205-215.( STACEY T R. Practical handbook for underground rock mechanics[M]. Translated by ZHU Fusheng. Beijing：Coal Industry Press，1990：205-215.(in Chinese)) " target="_blank">