考虑围岩短期蠕变效应的隧道双层初期支护变形控制研究

doi:10.13722/j.cnki.jrme.2022.0948

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摘要以华丽高速东马场1号隧道为工程背景，基于单轴压缩蠕变试验与现场监测，对泥质粉砂岩短期蠕变特征与蠕变参数进行分析，探究考虑围岩短期蠕变效应与施工扰动耦合影响下的隧道施工力学行为，在此基础上分析中台阶长度、第二层初期支护施作时机与初支封闭时间对隧道支护效果的影响以及敏感性。研究结果表明：不考虑围岩短期蠕变效应时，计算结果中拱底位移缩小了27.03%，塑性区面积缩小了16.91%；不同施工关键参数对隧道不同位置的变形控制效果存在差异；改变中台阶长度与第二层初期支护施作时机可以有效分配第一层与二层初期支护受力，初支封闭越早对支护结构受力越有利；敏感性分析结果：中台阶长度＞第二层初支支护时机＞初支封闭时间；可遵循“台阶增长、快支快封；台阶缩短、慢支慢封”的原则进行施工调控。

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	杨林霖1
	杨文波1
	田浩晟1
	寇昊1
	张航2
	刘冲亮3
	杨侨伟1
	何川1

关键词 ：隧道工程, 短期蠕变, 三台阶法, 双层初期支护, 施工关键参数, 敏感性分析

Abstract：Taking the Dongmachang No.1 tunnel of Huali Railway as the background，the short-term creep characteristics and creep parameters of muddy siltstone were analyzed by the uniaxial compression creep test and field monitoring，and the mechanical behavior of tunnel construction considering the coupling effect of short-term creep effect of surrounding rock and construction disturbance was explored. Then，the influence and the sensitivity of the mid-step length，the second layer of initial support installation timing as well as the initial support closure time on the tunnel support effects were analyzed. The results show that when the short-term creep effect of the surrounding rock is not taken into account，the displacement of the arch base is reduced by 27.03% and the area of the plastic zone is reduced by 16.91% in the calculation results. Different construction parameters have different effects on deformation control of each part of the tunnel. Changing the length of the mid-step and the timing of second layer initial support installation may efficiently distribute the support force of the first and second layers of the initial support；the earlier the initial support closure，the better the state of force in the tunnel. Sensitivity analysis results：mid-step length＞second layer of initial support installation timing＞initial support closure time. Construction control can be carried out according to the principle of “step growth，fast support and fast sealing; step shortening，slow support and slow sealing”.

Key words： tunnel engineering short term creep three-step method double primary support key construction parameters sensitivity analysis

引用本文:

杨林霖1，杨文波1，田浩晟1，寇昊1，张航2，刘冲亮3，杨侨伟1，何川1. 考虑围岩短期蠕变效应的隧道双层初期支护变形控制研究[J]. 岩石力学与工程学报, 2023, 42(7): 1731-1742.
YANG Linlin1，YANG Wenbo1，TIAN Haosheng1，KOU Hao1，ZHANG Hang2，LIU Chongliang3，YANG Qiaowei1，HE Chuan1. Study on deformation control of double-layered initial support in tunnels considering short-term creep effects of surrounding rock. , 2023, 42(7): 1731-1742.

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http://rockmech.whrsm.ac.cn/CN/10.13722/j.cnki.jrme.2022.0948 或 http://rockmech.whrsm.ac.cn/CN/Y2023/V42/I7/1731

[27]	金丰年. 考虑时间效应的围岩特征曲线[J]. 岩石力学与工程学报，1997，16(4)：51-60.(JIN Fengnian. Time dependent ground characteristic curves around tunnel[J]. Chinese Journal of Rock Mechanics and Engineering，1997，16(4)：51-60.(in Chinese))
[1]	李喆，江媛，姜礼杰，等. 我国隧道和地下工程施工技术与装备发展战略研究[J]. 隧道建设(中英文)，2021，41(10)：1 717-1 732. (LI Zhe，JIANG Yuan，JIANG Lijie，at al. Research on development strategy of tunnel and underground construction technology and equipment in China[J]. Tunnel Construction，2021，41(10)：1 717-1 732.(in Chinese))
[4]	汪波，郭新新，何川，等. 当前我国高地应力隧道支护技术特点及发展趋势浅析[J]. 现代隧道技术，2018，55(5)：1-10.(WANG Bo，GUO Xinxin，HE Chuan，et al. Analysis on the characteristics and development trends of the support technology of high ground stress tunnels in China[J]. Modern Tunnelling Technology，2018，55(5)：1-10.(in Chinese))
[7]	赵福善. 兰渝铁路两水隧道高地应力软岩大变形控制技术[J]. 隧道建设，2014，34(6)：546-553.(ZHAO Fushan. Technologies to control serious deformation of soft rocks with high ground stress：case study on Liangshui tunnel on Lanzhou—Chongqing railway[J]. Tunnel Construction，2014，34(6)：546-553.(in Chinese))
[9]	赵勇. 隧道软弱围岩变形机制与控制技术研究[博士学位论文][D]. 北京北京交通大学，2012.(ZHAO Yong. Study on deformation mechanism and control technology of weak rock surrounding tunnel[Ph. D. Thesis][D]. Beijing：Beijing Jiaotong University，2012.(in Chinese))
[11]	陈建勋，刘伟伟，陈丽俊，等. 绿泥石片岩地层大跨度公路隧道大变形控制及合理支护形式现场试验[J]. 中国公路学报，2020，33(12)：212-223.(CHEN Jianxun，LIU Weiwei，CHEN Lijun，et al. In-situ experimental study on large-deformation control and reasonable support forms for a large-span highway tunnel in chlorite schist[J]. China Journal of Highway and Transport，2020，33(12)：212-223.(in Chinese))
[14]	张俊儒，欧小强，郑强，等. 超大断面隧道在双层初期支护下的拆撑安全性研究[J]. 现代隧道技术，2018，55(6)：108-116.(ZHANG Junru，OU Xiaoqiang，ZHENG Qiang，et al. On safety in dismantling temporary strut of super-large tunnels with double-layer primary support[J]. Modern Tunnelling Technology，2018，55(6)：108-116.(in Chinese))
[17]	蒋海飞，刘东燕，黄伟，等. 高围压下高孔隙水压对岩石蠕变特性的影响[J]. 煤炭学报，2014，39(7)：1 248-1 256.(JIANG Haifei，LIU Dongyan，HUANG Wei，et al. Influence of high pore water pressure on creep properties of rock under high confining pressure[J]. Journal of China Coal Society，2014，39(7)：1 248-1 256.(in Chinese))
[5]	《中国公路学报》编辑部. 中国隧道工程学术研究综述•2015[J]. 中国公路学报，2015，28(5)：1-65.(Editorial Department of China Journal of Highway. Review on China?s tunnel engineering research：2015[J]. China Journal of Highway and Transport，2015，28(5)：1-65.(in Chinese))
[2]	关宝树. 软弱围岩隧道变形及其控制技术[J]. 隧道建设，2011，31(1)：1-17.(GUAN Baoshu. Deformation of tunnels with soft surrounding rocks and its control[J]. Tunnel Construction，2011，31(1)：1-17.(in Chinese))
[3]	张德华，刘士海，任少强. 高地应力软岩隧道中型钢与格栅支护适应性现场对比试验研究[J]. 岩石力学与工程学报，2014，33(11)：2 258-2 266.(ZHANG Dehua，LIU Shihai，REN Shaoqiang. Research on selection of steel and steel grid for tunnel support in soft rock with high geostress[J]. Chinese Journal of Rock Mechanics and Engineering，2014，33(11)：2 258-2 266.(in Chinese))
[12]	张德华，雷可，谭忠盛，等. 软岩大变形隧道双层初期支护承载性能对比试验研究[J]. 土木工程学报，2017，50(增2)：86-92. (ZHANG Dehua，LEI Ke，TAN Zhongsheng，et al. Field test on bearing and deformation properties of double primary layers applied to large deformation tunnel in weak rock[J]. China Civil Engineering Journal，2017，50(Supp.2)：86-92.(in Chinese))
[10]	杨建辉，沈恺，舒禄山，等. 基于BN的软岩隧道大变形风险机制与评估[J]. 铁道工程学报，2022，39(3)：81-86.(YANG Jianhui，SHEN Kai，SHU Lushan，et al. Risk mechanism and assessment of large deformation in soft rock tunnel[J]. Journal of Railway Engineering Society，2022，39(3)：81-86.(in Chinese))
[13]	李国良，宋冶，李雷，等. 大断面黄土隧道台阶法双层支护技术[J]. 中国工程科学，2014，16(8)：54-63.(LI Guoliang，SONG Zhi，LI Lei，et al. Double-layer support technology of large-section loess tunnel by benching method[J]. Strategic Study of CAE，2014，16(8)：54-63.(in Chinese))
[15]	张光伟，罗彦斌. 高地应力软岩隧道内层的初期支护施作时机[J]. 科学技术与工程，2020，20(34)：14 265-14 271.(ZHANG Guangwei，LUO Yanbin. Opportunity of the inner primary layer in soft rock tunnel with high ground stress[J]. Science Technology and Engineering，2020，20(34)：14 265-14 271.(in Chinese))
[19]	刘新喜，童庆闯，侯勇，等. 高应力泥质粉砂岩非线性蠕变损伤模型研究[J]. 中国公路学报，2018，31(2)：280-288.(LIU Xinxi，TONG Qingchuang，HOU Yong，et al. Research on nonlinear creep damage model of high stress argillaceous siltstone[J]. China Journal of Highway and Transport，2018，31(2)：280-288.(in Chinese))
[8]	田四明，吴克非，刘大刚，等. 软弱围岩隧道变形控制主动支护理念及技术[J]. 铁道学报，2021，43(6)：158-164.(TIAN Siming，WU Kefei，LIU Dagang，et al. Study on active support technology for deformation control of tunnels in soft surrounding rock[J]. Journal of the China Railway Society，2021，43(6)：158-164.(in Chinese))
[18]	YU H C，LIU H D，HUANG Z Q，et al. Experimental study on time-dependent behavior of silty mudstone from the three gorges reservoir area，China[J]. KSCE Journal of Civil Engineering，2017，21(3)：715-724.
[28]	林育梁. 软岩工程力学若干理论问题的探讨[J]. 岩石力学与工程学报，1999，18(6)：690-693.(LIN Yuliang. The research on several theoretical problems about engineering mechanics of soft rock[J]. Chinese Journal of Rock Mechanics and Engineering，1999，18(6)：690-693.(in Chinese))
[20]	左清军，吴立，李波，等. 富水泥质板岩隧道围岩蠕变力学特性研究[J]. 岩石力学与工程学报，2015，34(10)：2 047-2 056.(ZUO Qingjun，WU Li，LI Bo，et al. Creeping properities of water-rich argillaceous slate surrounding tunnel[J]. Chinese Journal of Rock Mechanics and Engineering，2015，34(10)：2 047-2 056.(in Chinese))
[22]	张海洋，徐文杰，王永刚. 隧道各向异性软岩力学参数反演及蠕变研究[J]. 地下空间与工程学报，2018，14(增1)：159-169.(ZHANG Haiyang，XU Wenjie，WANG Yonggang. Back analysis on mechanical parameters and creep property of transversely isotropic soft tunnel surrounding rock[J]. Chinese Journal of Underground Space and Engineering，2018，14(Supp.1)：159-169.(in Chinese))
[23]	曹文贵，李鹏，程晔. 高填石路堤蠕变本构模型及其参数反演分析与应用[J]. 岩土力学，2006，27(8)：1 299-1 304.(CAO Wengui，LI Peng，CHENG Ye. Study on constitutive model and its parameter?s back analysis of creep deformation for the high rockfill embankment and their application[J]. Rock and Soil Mechanics，2006，27(8)：1 299-1 304.(in Chinese))
[25]	XIAO J Z，DAI F C，WEI Y Q，et al. Cracking mechanism of secondary lining for a shallow and asymmetrically-loaded tunnel in loose deposits[J]. Tunnelling and Underground Space Technology，2014，5：13.
[30]	卢向勇，陈伟庚，邓皇适，等. 考虑围岩蠕变特性的隧道仰拱开挖时序性研究[J]. 铁道科学与工程学报，2020，17(4)：900-907.(LU Xiangyong，CHEN Weigeng，DENG Huangshi，et al. Study on time series of tunnel inverted arch excavation considering creep characteristics of surrounding rock[J]. Journal of Railway Science and Engineering，2020，17(4)：900-907.(in Chinese))
[6]	张祉道. 家竹箐隧道施工中支护大变形的整治[J]. 世界隧道，1997，(1)：7-16.(ZHANG Zhidao. Regulation of support large deformation for Jiazhuqing tunnel in construction[J]. Modern Tunnelling Technology，1997，(1)：7-16.(in Chinese))
[16]	田洪铭，陈卫忠，谭贤君，等. 高地应力软岩隧道合理支护方案研究[J]. 岩石力学与工程学报，2011，30(11)：2 285-2 292.(TIAN Hongming，CHEN Weizhong，TAN Xianjun，et al. Study of reasonable support scheme for soft rock tunnel in high geostress zone[J]. Chinese Journal of Rock Mechanics and Engineering，2011，30(11)：2 285-2 292.(in Chinese))
[26]	代聪. 高地应力场软岩隧道开挖与支护研究[博士学位论文][D]. 成都：西南交通大学，2018.(DAI Cong. Study on excavation and support of soft rock tunnel in Highland stress field[Ph. D. Thesis][D]： Chengdu：Southwest Jiaotong University，2018.(in Chinese))
[21]	赵旭峰，孙钧. 挤压性软岩流变参数反演与本构模型辨识[J]. 铁道工程学报，2008，(5)：5-8.(ZHAO Xufeng，SUN Jun. Inversion of mechanical parameters of squeezing soft rock and identification of rheological model[J]. Journal of Railway Engineering Society，2008，(5)：5-8.(in Chinese))
[24]	寇昊，何川，吴枋胤，等. 考虑走滑断裂活动影响的公路隧道初始地应力场反演分析[J]. 中国公路学报，2022，35(9)：321-330. (KOU Hao，HE Chuan，WU Fangyin，et al. Inversion analysis of initial geostress field of highway tunnel considering influence of strike-slip fault activity[J]. China Journal of Highway and Transport，2022，35(9)：321-330.(in Chinese))
[29]	苏永华，邹宇恒. 基于Hoek-Brown软化模型的支护结构稳定性分析[J]. 中南大学学报：自然科学版，2020，51(2)：453-463.(SU Yonghua，ZOU Yuheng. Stability analysis of support structure based on Hoek-Brown strain-softening model[J]. Journal of Central South University：Science and Technology，2020，51(2)：453-463.(in Chinese))