深埋大断面公路隧道松散荷载计算方法研究

doi:10.13722/j.cnki.jrme.2016.0384

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摘要

通过数值模拟与理论分析手段，开展深埋大断面公路隧道松散荷载计算方法研究。采用应变软化模型分析深埋大断面公路隧道分步施工中塌落拱的发展规律，结果表明：分步开挖大断面隧道可有效控制塌落拱的扩展，隧道塌落拱是各导坑开挖逐步积累的结果，传统荷载计算方法可用于开挖过程中各导坑松散荷载的计算，但不适用于大断面隧道最终成型时的松散荷载计算。因此，以状态设计法为基础，动态设计为手段，充分体现临时支护的作用，提出深埋大断面公路隧道分步施工松散荷载计算公式，并进行应用；通过与马林隧道的实测数据对比，表明该方法应用于深埋大断面公路隧道松散荷载计算时具有较高的准确度。研究成果可以为确定该类隧道支护参数提供设计依据。

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关键词 ：隧道工程, 深埋大断面隧道, 分步施工, 松散荷载

Abstract：

Research on calculating method for loose load of deep-buried large cross-section road tunnel has been done through numerical simulation and theoretical analysis method. Evolution rule of Slumping arch in deep-buried large cross-section road tunnel excavation by steps is analyzed by numerical method with the strain-softening model. The result indicates that excavations of large cross-section tunnel by steps can effectively control the slumping arch expansion，slumping arch of tunnel is the accumulation of that of headings，and traditional method can be used for calculating the loose load of heading in the process of the excavation，but not for that of large cross-section tunnel. So，the calculating method for loose load of deep-buried large cross-section tunnel in the process of excavation by steps is introduced and put into use. It is based on the state design method，carried out with the means of dynamic design，and fully embodies the role of temporary support. By compared with the measured data of Malin tunnel，it indicates that high accuracy can be reached with the method applied to calculate the loose load of deep-buried large cross-section road tunnel. These research results can provide design basis for supporting parameters determination of the similar tunnel.

Key words： tunnel engineering deep-buried large cross-section tunnel excavation by steps loose load

引用本文:

万飞，许崇帮，王华牢. 深埋大断面公路隧道松散荷载计算方法研究[J]. 岩石力学与工程学报, 2017, 36(S1): 3423-3430.
WAN Fei，XU Chongbang，WANG Hualao. Study on calculating method for loosening load of deep-buried large cross-section road tunnel. , 2017, 36(S1): 3423-3430.

链接本文:

https://rockmech.whrsm.ac.cn/CN/10.13722/j.cnki.jrme.2016.0384 或 https://rockmech.whrsm.ac.cn/CN/Y2017/V36/IS1/3423

[1] 曲海锋，杨重存，朱合华，等. 公路隧道围岩压力研究与发展[J]. 地下空间与工程学报，2007，3(3)：536–543.(QU Haifeng，YANG Zhongcun，ZHU Hehua，et al. Research and development on surrounding rock pressure of road tunnel[J]. Chinese Journal of Underground Space and Engineering，2007，3(3)：536–543.(in Chinese))

[2] 曲海锋，朱合华，蔡永昌. 扁平大跨度公路隧道松动荷载计算方法探讨[J]. 岩土力学，2008，29(4)：989–994. (QU Haifeng，ZHU Hehua，CAI Yongchang. Discussion on calculation of loose load on extra-large cross-section and large-span road tunnel[J]. Rock and Soil Mechanics，2008，29(4)：989–994.(in Chinese))

[3] 郑康成，丁文其，金威，等. 特大断面隧道分步施工动态压力拱分析研究[J]. 岩土工程学报，2015，37(增1)：72–77.(ZHENG Kangcheng，DING Wenqi，JIN Wei，et al. Experimental and numerical study on staged construction pressure arch of super large section tunnel[J]. Chinese Journal of Geotechnical Engineering，2015，37(Supp.1)：72–77.(in Chinese))

[4] 兰州铁道学院《隧道工程》编写组. 隧道工程[M]. 北京：人民铁道出版社，1977：198–200.(The Tunnel Engineering Compilation Group of Lanzhou Railway University. Tunnel engineering[M]. Beijing：China Railway Publishing Press，1977：198–200.(in Chinese))

[5] 梁晓丹，刘刚，赵坚，等. 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)：314–317. (LIANG Xiaodan，LIU Gang，ZHAO Jian，et al. Definition and analysis of arching action in underground rock engineering[J]. Journal of Hohai University：Natural Sciences，2005，33(3)：314–317.(in Chinese))

[6] 汪成兵. 均质岩体中隧道围岩破坏过程的试验与数值模拟[J]. 岩土力学，2012，33(1)：103–108.(WANG Chengbing. Laboratory and numerical investigation on failure process of tunnel constructed in homogeneous rock[J]. Rock and Soil Mechanics，2012，33(1)：103–108.(in Chinese))

[7] 李奎. 水平层状隧道围岩压力拱理论研究[博士学位论文][D]. 成都：西南交通大学，2010.(LI Kui. Pressure arch theory study of horizontal bedded tunnel surrounding rock[Ph. D. Thesis][D]. Chengdu：Southwest Jiaotong University，2010.(in Chinese))

[8] 曲海锋. 扁平特大断面公路隧道荷载模式及应用研究[博士学位论文][D]. 上海：同济大学，2007.(QU Haifeng. Study on load mode of

road tunnel with extra-large cross-section and low flat-ratio and its application[Ph. D. Thesis][D]. Shanghai：Tongji University，2007.(in Chinese))

[9] 朱合华，曲海锋，蔡永昌，等. 大断面公路隧道的过程设计方法研究[J]. 岩石力学与工程学报，2011，30(增2)：3 450–3 456.(ZHU Hehua，QU Haifeng，CAI Yongchang，et al. Study of process design method of large cross-section road tunnel[J]. Chinese Journal of Rock Mechanics and Engineering，2011，30(Supp.2)：3 450–3 456.(in Chinese))

[10] 曲海锋. 扁平特大断面隧道修筑及研究概述[J]. 隧道建设，2009，29(2)：166–171.(QU Haifeng. An overview on construction and research of super-large cross-section tunnels with low height-span ratios[J]. Tunnel Construction，2009，29(2)：166–171.(in Chinese))

[11] 李利平，李术才，赵勇，等. 超大断面隧道软弱破碎围岩渐进破坏过程三维地质力学模型试验研究[J]. 岩石力学与工程学报，2012，31(3)：550–560.(LI Liping，LI Shucai，ZHAO Yong，et al. 3D geomechanical model for progressive failure progress of weak broken surrounding rock in super large section tunnel[J]. Chinese Journal of Rock Mechanics and Engineering，2012，31(3)：550–560. (in Chinese))

[12] 夏才初，龚建伍，唐颖，等. 大断面小净距公路隧道现场监测分析研究[J]. 岩石力学与工程学报，2007，26(1)：44–50.(XIA Caichu，GONG Jianwu，TANG Ying，et al. Study on site monitoring of large-section highway tunnels with small clear spacing[J]. Chinese Journal of Rock Mechanics and Engineering，2007，26(1)：44–50.(in Chinese))

[13] 王水林，郑宏，刘泉声，等. 应变软化岩体分析原理及其应用[J]. 岩土力学，2014，35(3)：609–622.(WANG Shuilin，ZHENG Hong，LIU Quansheng，et al. Principle of analysis of strain-softening rock mass and its application[J]. Rock and Soil Mechanics，2014，35(3)：609–622.(in Chinese))

[14] 郑颖人，邱陈瑜，张红，等. 关于土体隧洞围岩稳定性分析方法的探索[J]. 岩石力学与工程学报，2008，27(10)：1 968–1 980. (ZHENG Yingren，QIU Chenyu，ZHANG Hong，et al. Exploration of stability analysis methods for surrounding rocks of soil tunnel[J]. Chinese Journal of Rock Mechanics and Engineering，2008，27(10)：1 968–1 980.(in Chinese))

[15] 中华人民共和国行业标准编写组. JTGD70—2004公路隧道设计规范[S]. 北京：人民交通出版社，2004.(The Professional Standards Compilation Group of People¢s Republic of China. JTGD70—2004 Code for design of road tunnel[S]. Beijing：China Communications Press，2004.(in Chinese))

[16] XU C B，XIA C C，WANG H L. The study on a new loads calculation method of muti-arch and extra large cross section tunnels[J]. Applied Mechanics and Materials，2011，(94/96)：1 159–1 165.