1∶10隧道锚缩尺模型的变形及应力特性

doi:10.13722/j.cnki.jrme.2014.0896

Abstract
Figure/Table
References (9)
Related Citation (15)

Download: PDF (1985 KB) HTML (1 KB)
Export: BibTeX | EndNote (RIS)

Abstract During field scale model test of tunnel-type anchorage，the deformation of anchorage and surrounding rock are monitored by multipoint displacement meter，the strain of anchorage are monitored by strain gauge，the deformation and its history of anchorage and surrounding rock are monitored by AE. Then，3D numerical simulation of test are also performed，the analysis is focused on the deformation and stress characteristics of tunnel-type anchorage. The results show that anchorage model undergo four phases in turn：When the load is less than 5.8–7.1 MN，the deformation of anchorage model is in elastic phase. When the load is less than 19.5 MN，the deformation of tunnel-type anchorage model is in elastic-plastic phase. When the load is greater than 19.5 MN and less than 23.7 MN，the deformation of tunnel-type anchorage mode is in the yield phase. When the load is greater than 23.7 MN，the deformation of tunnel-type anchorage mode is in rheological phase. And according to the developing of the plastic zone，the potential slip surface of tunnel-type anchorage is the bottom contact surface between anchorage and the rock mass. Rock mass above the rear anchorage would be damaged due to excessive tensile stress，which can lead to instability of tunnel-type anchorage.

Key words： tunneling engineering tunnel-type anchorage scale model test acoustic emission three-dimensional numerical simulation

	Service

	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors
	PANG Zhengjiang1
	SUN Haojie2
	LAI Qibo2
	YANG Yi1
	FAN Lei1

Cite this article:

PANG Zhengjiang1,SUN Haojie2,LAI Qibo2, et al. DEFORMATION AND STRESS CHARACTERISTICS OF TUNNEL-TYPE ANCHORAGE MODEL ON SCALE 1∶10[J]. , 2015, 34(S2): 3972-3978.

URL:

https://rockmech.whrsm.ac.cn/EN/10.13722/j.cnki.jrme.2014.0896 OR https://rockmech.whrsm.ac.cn/EN/Y2015/V34/IS2/3972

[1]	夏才初，程鸿鑫，李荣强. 广东虎门大桥东锚碇现场结构模型试验研究[J]. 岩石力学与工程学报，1997，16(6)：571-576.(XIACaichu，CHENGHongxing，LIRongqiang. Test study on field structure model of the east anchorage of Guangdong Humen bridge[J]. Chinese Journal RockMechanics and Engineering，1997，16(6)：571-576.(in Chinese))
[2]	肖本职，吴相超，彭朝全. 重庆鹅公岩大桥隧道锚碇围岩稳定性[J]. 岩石力学与工程学报，2005，24(增2)：5591-5597.(XIAO Benzhi，WU Xiangchao，PENG Chaoquan. Stability of the anchorage wall rock of tunnel for Chongqing Egongyan bridge[J]. Chinese Journal of Rock Mechanics and Engineering，2005，24(Supp.2)：5591-5597.(in Chinese))
[3]	肖本职，吴相超. 鹅公岩长江大桥东锚碇围岩极限承载力GM(1，1)模型预测研究[J]．长江科学院院报，2005，22(1)：35-38.(XIAO Benzhi，WU Xiangchao.Stability of the anchorage wall rock of tunnel forchongqing egongyan bridge[J].Journal of Yangtze River Scientific Research Institute，2005，22(1)：35-38.(in Chinese))
[4]	朱杰兵，邬爱清，黄正佳，等. 四渡河特大悬索桥隧道锚模型拉拔试验研究[J]. 长江科学院院报，2006，23(4)：51-55.(ZHU Jiebing，WU Aiqing，HUANG Zhengjia，et al.Pulling test of anchorage model of Siduhe Suspension bridge[J].Journal of Yangtze River Scientific Research Institute，2006，23(4)：51-55.(in Chinese))
[5]	邬爱清，彭元诚，黄正佳，等. 超大跨度悬索桥隧道锚承载特性的岩石力学综合研究[J]. 岩石力学与工程学报，2010，29(3)：433-
44	1.(WU Aiqin，PENG Yuanchen，HUANG Zhengjia，et al. Rock mechanics comprehensive study of bearing capacity characteristics of tunnel anchorage for super-large span suspension bridge[J]. Chinese Journal of Rock Mechanics and Engineering，2010，29(3)：433-441.(in Chinese))
[6]	胡波，赵海滨，王思敬，等. 隧道锚围岩拉拔模型试验研究及数值模拟[J]. 岩土力学，2009，30(6)：1575-1582.(HU Bo，ZHAO Haibin，WANG Sijing，et al. Rock and soil mechanics pull-out model test for tunnel anchorage and numerical analysis[J]. Rock and Soil Mechanics，2009，30(6)：1575-1582.(in Chinese))
[7]	赵海斌，于新华，彭运动，等. 坝陵河大桥隧道锚围岩力学特性原位试验研究[J]. 河海大学学报：自然科学版，2009，37(6)：680-684.(ZHAO Haibin，YU Xinhua，PENG Yundong，et al. In-situ tests on mechanical properties of rock surrounding tunnel-type anchors of Balinghe Bridge[J]. Journal of Hohai University：Natural Science，2009，37(6)：680-684.(in Chinese))
[8]	胡波，曾钱帮，彭运动，等. 隧道锚碇围岩稳定分析及破坏模式研究[J]. 中国科学院研究生院学报，2008，25(4)：487-492.(HU Bo，ZEN Qianbang，PENG Yundong，et al. The stability and failure mode study on the tunnel anchorage rock masses[J]. Journal of the Graduate School of the Chinese Academy of Sciences，2008，25(4)：487-492.(in Chinese))
[9]	林韵梅. 实验岩石力学-模拟研究[M]. 北京：煤炭工业出版社. 1984：3-54.(LIN Yunmei. Experimental rock mechanics-simulation study[M]. Beijing：China Coal Industry Publishing House，1984：3-54.(in Chinese))