隧道围岩的复合结构特性及其荷载效应

doi:10.13722/j.cnki.jrme.2015.0900

Abstract
Figure/Table
References
Related Citation (15)

Download: PDF (1097 KB) HTML (1 KB)
Export: BibTeX | EndNote (RIS)

Abstract Based on the structure feature and behavior subject to disturbance，a structural model was established for complicated surrounding rock in tunnel engineering. The model specified the structure stability and calculation method of load effect，and realized the coupling of the load-structure model with the stratum-structure model. After excavation，the initial stress is released and the pressure is transferred，usually in a form of pressure arch. The failure of surrounding rock shows a progressive character. The concept of deep buried and shallow buried surrounding rock was put forward according to the stability. The different structure features among rock groups resulted in the discontinuous and phase-dependent character of the failure of deep buried surrounding rock. Surrounding rock in the same group move synchronously and its simultaneous failure gives rise to the outside rock formation to sustain the stability of the exterior rock，that is，a composite arch structure varied with time and space. Each deep buried rock group consists of structure layer and load layer. For rocks in the structure layer，they usually own larger thickness，strength and stiffness，so as to maintain the stability of the rocks in this group. In contrast，rocks with small thickness，strength and stiffness are classified as load layer，exerting on the structure layer. The instability mechanism of structure layer was revealed and the corresponding criterion was presented. The load effect of complicated surrounding rock in tunnel engineering is composed of the given pressure of shallow buried surrounding rock and deformation pressure of the deep buried surrounding rock. The former depends on the scope and character of the shallow buried surrounding rock and the latter depends on the controlled state and stiffness of theforce transfer layer.

Key words： tunnelling engineering compound structure of surrounding rock internal and external surrounding rock aggregate failure characteristics load effect

	Service

	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors

Cite this article:

URL:

http://www.rockmech.org/EN/10.13722/j.cnki.jrme.2015.0900 OR http://www.rockmech.org/EN/Y2016/V35/I3/456

[12]	李树清，王卫军，潘长良. 深部巷道围岩承载结构的数值分析[J].岩土工程学报，2006，28(3)：377–381.(LI Shuqing，WANG Weijun，PAN Changliang. Numerical analysis on support structure of rock around deep roadway[J]. Chinese Journal of Geotechnical Engineering，2006，28(3)：377–381.(in Chinese))
[15]	房倩，张顶立，王毅远，等. 圆形洞室围岩破坏模式模型试验研究[J]. 岩石力学与工程学报，2011，30(3)：564–571.(FANG Qian，ZHANG Dingli，WANG Yiyuan，et al. Model test study of failure modes of surrounding rock for circular caverns[J]. Chinese Journal of Rock Mechanics and Engineering，2011，30(3)：564–571.(in Chinese))
[2]	范文，俞茂宏，陈立伟，等. 考虑剪胀及软化的洞室围岩弹塑性分析的统一解[J]. 岩石力学与工程学报，2004，23(19)：3 213–3 220. (FAN Wen，YU Maohong，CHEN Liwei，et al. Unified elastoplastic solution for surrounding rocks of openings with consideration of material dilatancy and softening[J]. Chinese Journal of Rock Mechanics and Engineering，2004，23(19)：3 213–3 220.(in Chinese))
[3]	李英杰，张顶立，刘保国，等. 考虑围岩性质劣化的深埋软弱隧道破坏机制数值模拟研究[J]. 土木工程学报，2012，45(9)：156–166. (LI Yingjie，ZHANG Dingli，LIU Baoguo，et al. Numerical simulation study on failure mechanism of deep soft-weak tunnel considering surrounding rock deterioration[J]. China Civil Engineering Journal，2012，45(9)：156–166.(in Chinese)) " target="_blank">
[5]	赵学勐，王璐. 黄土拱作用机制剖析[J]. 岩土力学，2009，30(增2)：9–12.(ZHAO Xuemeng，WANG Lu. Analysis of mechanism of loess arching[J]. Rock and Soil Mechanics，2009，30(Supp.2)：9–12.(in Chinese)) " target="_blank">
[6]	杨锡武，张永兴. 公路高填方涵洞土压力变化规律及计算方法研究[J]. 土木工程学报，2005，38(9)：119–126.(YANG Xiwu，ZHANG Yongxing. A study on the earth pressure theory for gigh fill culverts[J]. China Civil Engineering Journal，2005，38(9)：119–126.(in Chinese))
[9]	王晓鸿，王家来，梁发云. 应变软化岩土材料内扩孔问题解析解[J]. 工程力学，1999，16(5)：71–76.(WANG Xiaohong，WANG Jialai，LIANG Fayun. Analytical solution to expansion of cavity in strain softening materials[J]. Engineering Mechanics，1999，16(5)：71–76. (in Chinese))
[10]	蒋明镜，沈珠江. 考虑材料软化特性的柱形孔扩张问题[J]. 岩土工程学报，1995，17(4)：10–19.(JIANG Mingjing，SHEN Zhujiang. Expansion of cylindrical cavity of materials with strain softening behaviour[J]. Chinese Journal of Geotechnical Engineering，1995，17(4)：10–19.(in Chinese))
[13]	余伟健，高谦，朱川曲. 深部软弱围岩叠加拱承载体强度理论及应用研究[J]. 岩石力学与工程学报，2010，29(10)：2 135–2 142. (YU Weijian，GAO Qian，ZHU Chuanqu. Study of strength theory and application of overlap arch bearing body for deep soft surrounding rock[J]. Chinese Journal of Rock Mechanics and Engineering，2010，29(10)：2 135–2 142.(in Chinese))
[16]	陈立平，张顶立，房倩，等. 一种基于数值应力场的强度各向异性边坡稳定性分析方法[J]. 岩土力学，2014，35(12)：3 611–3 618. (CHEN Liping，ZHANG Dingli，FANG Qian，et al. A new search algorithm for strength anisotropy slope stability analysis based on numerical stress field[J]. Rock and Soil Mechanics，2014，35(12)：3 611–3 618. (in Chinese))
[17]	侯公羽. 围岩–支护作用机制评述及其流变变形机制概念模型的建立与分析[J]. 岩石力学与工程学报，2008，27(增2)：3 618–3 629. (HOU Gongyu. Review of interaction mechanism between surrounding rock and support and analysis of conceptual model of rheological deformation mechanism[J]. Chinese Journal of Rock Mechanics and Engineering，2008，27(Supp.2)：3 618–3 629.(in Chinese)) " target="_blank">
[18]	左建平，谢和平，吴爱民，等. 深部煤岩单体及组合体的破坏机制与力学特性研究[J]. 岩石力学与工程学报，2011，30(1)：84–92. (ZUO Jianping，XIE Heping，WU Aimin，et al. Investigation on failure mechanisms and mechanical behaviors of deep coal-rock single body and combined body[J]. Chinese Journal of Rock Mechanics and Engineering，2011，30(1)：84–92.(in Chinese))
[1]	张顶立，陈峰宾，房倩. 隧道初期支护结构受力特性及适用性研究[J]. 工程力学，2014，31(7)：78–84.(ZHANG Dingli，CHEN Fengbin，FANG Qian. Study on mechanical characteristics and applicability of primary lining used in tunnel[J]. Engineering Mechanics，2014，31(7)：78–84.(in Chinese))
[4]	张顶立，王梦恕，高军，等. 复杂围岩条件下大跨隧道修建技术研究[J]. 岩石力学与工程学报，2003，22(2)：290–296.(ZHANG Dingli，WANG Mengshu，GAO Jun，et al. Construction technique of large-spanned tunnel under condition of complicated surrounding rocks[J]. Chinese Journal of Rock Mechanics and Engineering，2003，22(2)：290–296.(in Chinese))
[7]	JIANG Y，YONEDA H，TANABASHI Y. Theoretical estimation of loosening pressure on tunnels in soft rocks[J]. Tunnelling and Underground Space Technology，2001，16(1)：99–105. " target="_blank">
[8]	蒋明镜，沈珠江. 考虑剪胀的线性软化模型柱形孔扩张问题[J]. 岩石力学与工程学报，1997，16(6)：550–557.(JIANG Mingjing，SHEN Zhujiang. On expansion of cylindrical cavity with linear softening and shear dilatation behaviour[J]. Chinese Journal of Rock Mechanics and Engineering，1997，16(6)：550–557.(in Chinese))
[11]	马念杰，张益东. 圆形巷道围岩变形压力新解法[J]. 岩石力学与工程学报，1996，15(1)：84–89.(MA Nianjie，ZHANG Yidong. A new analysis on ground pressures around openings[J]. Chinese Journal of Rock Mechanics and Engineering，1996，15(1)：84–89.(in Chinese))
[14]	沈华章，王水林，刘泉声. 模拟应变软化岩石三轴试验过程曲线[J]. 岩土力学，2014，35(6)：1 647–1 654.(SHEN Huazhang，WANG Shuilin，LIU Quansheng. Simulation of constitutive curves for strain-softening rock in triaxial compression[J]. Rock and Soil Mechanics，2014，35(6)：1 647–1 654.(in Chinese))
[19]	张顶立，李倩倩，房倩，等. 隧道施工影响下城市复杂地层的变形机制及预测方法[J]. 岩石力学与工程学报，2014，33(12)：2 504– 2 516.(ZHANG Dingli，LI Qianqian，FANG Qian，et al. Deformation mechanism and prediction method for tunneling in complex urban ground conditions[J]. Chinese Journal of Rock Mechanics and Engineering，2014，33(12)：2 504–2 516.(in Chinese))