火灾下隧道衬砌的安全设计

摘要
图/表
参考文献(17)
相关文章 (15)

全文: PDF (1024 KB) HTML (1 KB)
输出: BibTeX | EndNote (RIS)

摘要在考虑衬砌混凝土和钢筋在高温下的非线性以及非线性温度荷载曲线的基础上，有限元数值模拟计算可获得衬砌在火灾发生前后的内部荷载，并且由温度传播分析和非线性结构分析模型计算得到火灾中衬砌的承载能力。该计算模型考虑衬砌材料力学性能随温度升高而降低的应力释放系数以及围岩与隧道衬砌之间的相互作用。此计算与时间增量历史有关，即考虑不同燃烧时间段材料力学参数的改变。除给出此项目在奥地利境内火灾下一个隧道截面安全设计计算结果外，还在计算中考虑高温荷载以及由高温荷载产生的影响。计算结果可以更好地帮助理解隧道衬砌在高温下的力学行为，便于对隧道结构设计进行火灾条件下的设计校核以及制定隧道衬砌结构火灾安全设计规范，为隧道结构火灾安全方面的设计计算和研究提供参考。

	服务

	把本文推荐给朋友
	加入我的书架
	加入引用管理器
	E-mail Alert
	RSS
	作者相关文章
	蔡小林1
	SWOBODA G2
	陈文胜1
	吴从师1

关键词 ：隧道工程, 火灾, 隧道衬砌, 安全设计, 有限元模拟

Abstract：Based on the consideration of the nonlinear and nonlinear load-temperature curves of tunnel lining concrete and steel，the internal loads of lining before and after fire can be obtained by finite element numerical simulation；and the lining capacity in fire is got by the temperature spread analyses and nonlinear structural analysis model. The stress releasing coefficient of mechanical property of lining，which decreases with the temperature，and the interaction between tunnel lining and surrounding rock，is considered in the calculation model. The calculation is associated with the time increment history，in other words，the variation of mechanical parameters of materials at different fire time is considered. Besides the safety design results of a tunnel section in fire within Austrian region is put forward，the influence of high temperature load on the lining is also considered in the calculation. The calculation results can be better to help to explain the mechanical behavior of tunnel lining under high temperature. It can be convenient for the tunnel structure design check in fire and set the code for fire safety design of tunnel lining. The calculation results can also provide the reference to the design and study of tunnel lining in fire safety aspects.

Key words： tunnelling engineering fire tunnel lining safety design finite element simulation

引用本文:

蔡小林1，SWOBODA G2，陈文胜1，吴从师1. 火灾下隧道衬砌的安全设计[J]. 岩石力学与工程学报, 2010, 29(S2): 3805-3811.
CAI Xiaolin1，SWOBODA G2，CHEN Wensheng1，WU Congshi1. safety design of tunnel lining IN Fire. , 2010, 29(S2): 3805-3811.

链接本文:

https://rockmech.whrsm.ac.cn/CN/Y2010/V29/IS2/3805

[1] 肖建庄，王平，朱伯龙. 我国钢筋混凝土材料抗火性能研究回顾与分析[J]. 建筑材料学报，2003，6(2)：182–189.(XIAO Jianzhuang，WANG Ping，ZHU Bolong. Review on fire-resistance behavior of reinforced concrete in China[J]. Journal of Building Materials，2003，6(2)：182–189.(in Chinese))

[2] 逄靖华，陆洲导，袁廷明，等. 混凝土高温试验及高温后抗压残余强度研究[J]. 四川建筑科学研究，2007，33(3)：71–73，78.(PANG Jinghua，LU Zhoudao，YUAN Tingming，et al. Test of concrete under high temperature and the study of residual compressive strength after high temperature[J]. Sichuan Building Science，2007，33(3)：71–73，78.(in Chinese))

[3] 陈磊，李彬，滕桃居，等. 混凝土高温力学性能分析[J]. 混凝土，2003，(7)：26–28.(CHEN Lei，LI Bin，TENG Taoju，et al. Analysis of mechanical behavior of concrete under high temperature[J]. Concrete，2003，(7)：26–28.(in Chinese))

[4] 郑永乾，韩林海，经建生，等. 火灾下型钢混凝土梁力学性能的研究[J]. 工程力学，2008，25(9)：118–125.(ZHENG Yongqian，HAN Linhai，JING Jiansheng，et al. Research on behavior of steel reinforce concrete(SRC) beams in fire[J]. Engineering Mechanics，2008，25(9)：118–125.(in Chinese))

[5] 崔军，邵红，李刚. 隧道火灾后衬砌混凝土受损分析[J]. 中国市政工程，2006，(6)：64–65.(CUI Jun，SHAO Hong，LI Gang. Damage analysis of tunnel lining concrete after fire[J]. China Municipal Engineering，2006，(6)：64–65.(in Chinese))

[6] 彭立敏，刘小兵，王薇，等. 隧道衬砌的火灾损伤程度试验与检测方法研究[J]. 实验力学，1999，14(3)：395–401.(PENG Limin，LIU Xiaobing，WANG Wei，et al. Research on the damage degree of tunnel lining structure after fire accident and its detection[J]. Journal of Experimental Mechanics，1999，14(3)：395–401.(in Chinese))

[7] 姚坚，朱合华，闫治国，等. 隧道衬砌混凝土高温后力学性能试验研究[J]. 地下空间与工程学报，2007，3(1)：66–72.(YAO Jian，ZHU Hehua，YAN Zhiguo，et al. Experimental research on mechanical property of tunnel lining concrete after high temperature effect[J]. Chinese Journal of Underground Space and Engineering，2007，3(1)：66–72.(in Chinese))

[8] 张孟喜，黄瑾，贺小强，等. 火荷载下沉管隧道结构的热–力耦合分析[J]. 土木工程学报，2007，40(3)：83–87.(ZHANG Mengxi，HUANG Jin，HE Xiaoqiang，et al. Coupling analysis of thermal field and stress field for immersed tunnels under fire load[J]. China Civil Engineering Journal，2007，40(3)：83–87.(in Chinese))

[9] KUSTERLE W. Brandbestaedigkeit von Faser-，Stahl- und Stahlbeton[M]. BMfVIT，Strassenforschung：[s. n.]，2004.

[10] Bulletin d'Information du Comité Euro-International du Béton. Fire design of concrete structures in accordance with CEB/FIP model code 90[S]. Lausanne：[s. n.]，1991.

[11] Deutsches Institut für Normung. Planung von Stahlbeton und Spannbetontragwerken Teil 1–2：Allgemeine Regeln[S]. Berlin，German：[s. n.]，1995.

[12] International Organization for Standardization，ISO 834. Fire-resistance test[S]. ISO，Geneva，Switzerland：[s. n.]，1999.

[13] Brenner Eisenbahn GmbH(BEG). Gutachten und Berichte- Geo- mechanischer Bericht[R]. Münster，Deutschland：[s. n.]，2005

[14] SWOBODA G. Program system final—finite element analysis program for linear and nonlinear structures，version 7.1[M]. Innsbruck：Publisher of Innsbruck University，2001.

[15] 殷有泉. 固体力学非线性有限元引论[M]. 北京：清华大学出版社，1987.(YIN Youquan. Introduction to nonlinear FEM in solid mechanics[M]. Beijing：Tsinghua University Press，1987.(in Chinese))

[16] ZIENKIEWICZ O C，TAYLOR R L. The finite element method for solid and structural mechanics，sixth vision[M]. Elsevier，Oxford：[s. n.]，2005.

[17] LAABMAYR F，SWOBODA G. Zusammenhang zwischen elektronischer，Berechnung und Messung，Stand der Entwichlung fuer seichtliegende tunnel[J]. Rock Mechanics，1979，8(Supp.)：29–42.