锚杆加固作用下圆形隧道复合岩体围岩特征曲线解析方法研究

doi:10.13722/j.cnki.jrme.2017.0462

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Abstract In the traditional convergence-confinement method，bolts are usually considered as support structure，and the characteristic curve of supporting bolts is then derived individually. However，the support system cannot be constructed with the bolts only and must be constructed by combining the bolts with the rock mass. In this paper，the effect of bolt reinforcement on rock mass was considered. The analytical solution of the ground characteristic curve for bolted circular tunnel was derived with the homogenization method based on the theory of elasto-plasticity. The results of the analytical solution were compared with the ones from the numerical simulation. The proposed analytical solution of ground characteristic curve for bolted circular tunnel agrees well with the calculated results of FLAC3D. It was thus concluded that it is reasonable to combine the bolts with the rock mass as the composite bearing system. The accuracy of the proposed method was verified. Comparing with ground characteristic curves of unreinforced rock and bolted rock shows that bolts have the significant effect on the deformation of rock mass. The prestress and initial supporting time of bolts were considered in the proposed analytical solution. This study provides a relatively simple and rapid method for stability analysis of bolted tunnel.

Key words： tunneling engineering convergence-confinement method bolt reinforcement composite rock mass ground characteristic curve

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	Articles by authors
	YAN Qin
	LI Shuchen
	XIE Can
	WANG Manling
	DING Kui

Cite this article:

YAN Qin,LI Shuchen,XIE Can, et al. Analytical solution for ground characteristic curve of composite rock mass reinforced by bolts in circular tunnels[J]. , 2017, 36(12): 3021-3027.

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https://rockmech.whrsm.ac.cn/EN/10.13722/j.cnki.jrme.2017.0462 OR https://rockmech.whrsm.ac.cn/EN/Y2017/V36/I12/3021

[1]	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 and Transport. Review on china's tunnel engineering research：2015[J]. China Journal of Highway and Transport，2015，28(5)：1-65.(in Chinese))
[2]	尚彦军，史永跃，曾庆利，等. 昆明上公山隧道复杂地质条件下TBM卡机及护盾变形问题分析和对策[J]. 岩石力学与工程学报，2005，24(21)：60-65.(SHANG Yanjun，SHI Yongyue，ZENG Qingli， et al. TBM jamming and deformation in complicated geological conditions and engineering measures[J]. Chinese Journal of Rock Mechanics and Engineering，2005，24(21)：60-65.(in Chinese))
[3]	刘招伟，王明胜，方俊波. 高地应力大变形隧道支护系统的试验研究[J]. 土木工程学报，2010，43(5)：111-116.(LIU Zhaowei，WANG Mingsheng，FANG Junbo. In-situ study of reinforcement systems for tunnels under high geo-stress and large deformation[J]. China Civil Engineering Journal，2010，43(5)：111-116.(in Chinese))
[4]	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))
[5]	平洋，李树忱，汪雷. 贯通节理砂岩峰后变形试验研究及其在隧道支护中的应用[J]. 煤炭学报，2014，39(4)：644-650.(PING Yang，LI Shuchen，WANG Lei. Experimental study of post-peak deformation of sandstone with pre-existing transfixion joint and its application in tunnel support[J]. Journal of China Coal Society，2014，39(4)：644-650.(in Chinese))
[6]	李树忱，晏勤，谢璨，等. 膨胀性黄土隧道钢拱架-格栅联合支护力学特性研究[J]. 岩石力学与工程学报，2017，36(2)：446-456.(LI Shuchen，YAN Qin，XIE Can，et al. The mechanical behavior of composite supports of steel-grid in loess tunnel[J]. Chinese Journal of Rock Mechanics and Engineering，2017，36(2)：446-456.(in Chinese))
[7]	康红普，姜鹏飞，蔡嘉芳. 锚杆支护应力场测试与分析[J]. 煤炭学报，2014，39(8)：1 521-1 529.(KANG Hongpu，JIANG Pengfei，CAI Jiafang. Test and analysis on stress fields caused by rock bolting[J]. Journal of China Coal Society，2014，39(8)：1 521-1 529. (in Chinese))
[8]	王洪涛，王琦，王富奇，等. 不同锚固长度下巷道锚杆力学效应分析及应用[J]. 煤炭学报，2015，40(3)：509-515.(WANG Hongtao，WANG Qi，WANG Fuqi，et al. Mechanical effect analysis of bolts in roadway under different anchoring lengths and its application[J]. Journal of China Coal Society，2015，40(3)：509-515.(in Chinese))
[9]	王邓峮. 考虑锚杆预应力作用的锚固边坡稳定性研究[博士学位论文][D]. 兰州：兰州理工大学，2013.(WANG Dengqun. Stability analysis of slope supported by anchor considering prestress[Ph. D. Thesis][D]. Lanzhou：Lanzhou University of Technology，2013.(in Chinese)) " target="_blank">
[10]	ORESTE P P. Analysis of structural interaction in tunnels using the convergence-confinement approach[J]. Tunnelling and Underground Space Technology，2003，18(4)：347-363. " target="_blank">
[11]	关宝树. 隧道力学概论[M]. 成都：西南交通大学，1993：79-82.(GUAN Baoshu. General theory of tunnel mechanics[M]. Chengdu：Southwest Jiaotong University，1993：79-82.(in Chinese)) " target="_blank">
[12]	TAN C H. Difference solution of passive bolts reinforcement around a circular opening in elastoplastic rock mass[J]. International Journal of Rock Mechanics and Mining Sciences，2016，81：28-38. " target="_blank">
[13]	ORESTE P. Designing of radial bolting in tunnels[J]. Journal of Mining Science，2004，40(4)：384-394.
[14]	SAMIR M，DENISE B，EDUARDO C. Three- dimensional numerical simulation of rock deformation in bolt-supported tunnels：A homogenization approach[J]. Tunnelling and Underground Space Technology，2012，31：68-79. " target="_blank">
[15]	BOBET A，EINSTEIN H H. Tunnel reinforcement with rockbolts[J]. Tunnelling and Underground Space Technology，2011，26(1)：100-123.
[16]	CAI Y，JIANG Y J，DJAMALUDDIN I，et al. An analytical model considering interaction behavior of grouted rock bolts for convergence- confinement method in tunneling design[J]. International Journal of Rock Mechanics and Mining Sciences，2015，76：112-126. " target="_blank">
[17]	孟强，赵洪波，茹忠亮，等. 锚杆支护圆形隧洞弹塑性解[J]. 工程力学，2015，32(7)：17-25.(MENG Qiang，ZHAO Hongbo，RU Zhongliang，et al. Analytical solution for circular tunnels with rock bolts[J]. Engineering Mechanics，2015，32(7)：17-25.(in Chinese))
[18]	INDRARATNA B，KAISER P K. Analytical model for the design of grouted rock bolt[J]. International Journal for Numerical and Analytical Methods in Geomechanics，1990，14(4)：227-251. " target="_blank">
[19]	AHMAD F，MASOUD R. Analytical approach for the design of active grouted rockbolts in tunnel stability based on convergence-confinement method[J]. Tunnelling and Underground Space Technology，2009，24(4)：363-375.
[20]	张素敏，宋玉香，朱永全. 隧道围岩特性曲线数值模拟与分析[J]. 岩土力学，2004，25(3)：455-458.(ZHANG Sumin，SONG Yuxiang，ZHU Yongquan. Numerical simulation and analysis of ground reaction curve[J]. Rock and Soil Mechanics，2004，25(3)：455-458.(in Chinese))