浅埋小净距隧道围岩压力计算与监测分析

摘要
图/表
参考文献(14)
相关文章 (15)

全文: PDF (974 KB) HTML (1 KB)
输出: BibTeX | EndNote (RIS)

摘要以《公路隧道设计规范》(JTG D70–2004)为基础，结合小净距隧道的特点，对浅埋小净距隧道的围岩压力进行理论分析和探讨，提出考虑隧道双洞先后施工过程的围岩压力分析模型和计算方法。通过算例分析围岩压力分布规律及其影响因素，指出浅埋小净距隧道围岩压力分布的偏压特征，即隧道内侧垂直压力大于外侧，内侧侧压力小于外侧。最后通过工程监测实例对理论计算结果进行对比分析和验证，表明理论计算公式和分析模型的合理性，并提出以相对最不利的先行洞偏压状态围岩压力值进行支护参数设计的建议。研究工作可为今后围岩压力分析计算和隧道结构设计提供有益的借鉴和参考。

	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
	龚建伍1
	夏才初2
	雷学文1

关键词 ：隧道工程, 小净距隧道, 围岩压力, 浅埋, 理论计算, 现场监测

Abstract：Based on the code for design of road tunnel(JTG D70–2004)，the analysis has been carried out on the rock pressure of shallow-buried twin tunnels with small spacing；and the calculated model and theoretical calculation of rock pressure have been put forward by considering the construction processes of twin tunnels. The distribution law and influence factors of tunnel rock pressure have been discussed through calculation examples；the unsymmetrical characteristic of rock pressure distribution in shallow-buried twin tunnels with small spacing is pointed out，i.e. the vertical contact pressure at the inner side of twin tunnels is greater than that at the outer side，while lateral contact pressure at the inner side is less than that at the outer side. Meanwhile，the comparison analysis has been made between theoretical values from model and monitoring data from practical tunnel engineering. The results show that the calculated model and theoretical method proposed are rational and practicable. It is proposed that the unsymmetrical characteristic of rock pressure should be taken into account for the design of tunnel structure and support. The experience and conclusions can be referred to the analysis of rock pressure and the design of tunnel structure.

Key words： tunnelling engineering small spacing tunnels rock pressure shallow-buried theoretical calculation field measurement

引用本文:

龚建伍1，夏才初2，雷学文1. 浅埋小净距隧道围岩压力计算与监测分析[J]. 岩石力学与工程学报, 2010, 29(S2): 4139-4145.
GONG Jianwu1，XIA Caichu2，LEI Xuewen1. ANALYSIS OF FIELD MEASUREMENT AND THEORETICAL CALCULATION ON ROCK PRESSURE IN SHALLOW-BURIED TWIN TUNNELS WITH SMALL SPACING. , 2010, 29(S2): 4139-4145.

链接本文:

https://rockmech.whrsm.ac.cn/CN/Y2010/V29/IS2/4139

[1] 中华人民共和国行业标准编写组. JTG D70–2004公路隧道设计规范[S]. 北京：人民交通出版社，2004.(The Professional Standards Compilation Group of People¢s Republic of China. JTG D70–2004 Code for design of road tunnel[S]. Beijing：China Communications Press，2004.(in Chinese))

[2] 黄拔洲，陈少华，秦峰. 小净距隧道在京福高速公路上的实践[J]. 重庆大学学报，2003，26(10)：19–22.(HUANG Bazhou，CHEN Shaohua，QIN Feng. Development of parallel tunnels with super-small interval in Beijing—Fuzhou freeway engineering[J]. Journal of Chongqing University，2003，26(10)：19–22.(in Chinese))

[3] 刘艳青，钟世航，卢汝绥，等. 小净距并行隧道力学状态的试验研究[J]. 岩石力学与工程学报，2000，19(5)：590–594.(LIU Yanqing，ZHONG Shihang，LU Rusui，et al. Experimental study on mechanical characteristics of twin tunnels with small spacing[J]. Chinese Journal of Rock Mechanics and Engineering，2000，19(5)：590–594.(in Chinese))

[4] 林立彬，万明富，张兆杰. 公路小净距隧道技术之刍议[J]. 北方交通，2009，(1)：136–139.(LIN Libin，WAN Mingfu，ZHANG Zhaojie. Dispute of technique for tunnel with small clearance on highway[J]. Northern Communications，2009，(1)：136–139.(in Chinese))

[5] 李术才，王汉鹏，郑学芬. 分岔隧道稳定性分析及施工优化研究[J]. 岩石力学与工程学报，2008，27(3)：447–457.(LI Shucai，WANG Hanpeng，ZHENG Xuefen. Forked tunnel stability analysis and its construction optimization research[J]. Chinese Journal of Rock Mechanics and Engineering，2008，27(3)：447–457.(in Chinese))

[6] 孙明路，朱永全，何本国. 小净距地铁隧道围岩受力特性研究[J]. 石家庄铁道学院学报(自然科学版)，2009，22(1)：55–59.(SUN Minglu，ZHU Yongquan，HE Benguo. Research on surrounding rock stress characteristics of subway tunnels with small-interval[J]. Journal of Shijiazhuang Railway Institute(Natural Science)，2009，22(1)：55–59.(in Chinese))

[7] 乔春江，朱光仪. 超小净距隧道的设计与研究[J]. 公路，2006，(7)：179–184.(QIAO Chunjiang，ZHU Guangyi. Design and study on small spacing tunnels[J]. Highway，2006，(7)：179–184.(in Chinese))

[8] 郑国平，杨健，高翔. 双洞双向8车道公路隧道的方案比选[J]. 交通科技，2006，(3)：35–38. (ZHENG Guoping，YANG Jian，GAO Xiang. Scheme comparison of a two-tube highway tunnel with eight lanes in two directions[J]. Transportation Science and Technology，2006，(3)：35–38.(in Chinese))

[9] 肖明清. 小间距浅埋隧道围岩压力的探讨[J]. 现代隧道技术，2004，41(3)：7–10.(XIAO Mingqing. Study on the rock pressure acting on shallow tunnels with small spacing[J]. Modern Tunnelling Technology，2004，41(3)：7–10.(in Chinese))

[10] 舒志乐，刘保县，李月. 偏压小净距隧道围岩压力分析[J]. 地下空间与工程学报，2007，3(3)：430–433.(SHU Zhile，LIU Baoxian，LI Yue. Surrounding rock pressure analysis of neighbourhood tunnel under unsymmetrical pressure[J]. Chinese Journal of Underground Space and Engineering，2007，3(3)：430–433.(in Chinese))

[11] 夏才初，龚建伍，唐颖，等. 大断面小净距公路隧道现场监测分析研究[J]. 岩石力学与工程学报，2007，26(1)：44–50.(XIA Caichu，GONG Jianwu，TANG Ying，et al. Study on site monitoring of large-section highway tunnels with small spacing[J]. Chinese Journal of Rock Mechanics and Engineering，2007，26(1)：44–50.(in Chinese))

[12] 王军，夏才初，朱合华，等. 不对称连拱隧道现场监测与分析研究[J]. 岩石力学与工程学报，2004，23(2)：267–271.(WANG Jun，XIA Caichu，ZHU Hehua，et al. Site monitoring and analysis of non-symmetrical multi-arch highway tunnel[J]. Chinese Journal of Rock Mechanics and Engineering，2004，23(2)：267–271.(in Chinese))

[13] 夏才初，刘金磊. 相思岭连拱隧道中墙应力研究[J]. 岩石力学与工程学报，2000，19(增1)：1 115–1 119.(XIA Caichu，LIU Jinlei. Study on the middle wall stress of Xiangsiling doubled arch tunnel[J]. Chinese Journal of Rock Mechanics and Engineering，2000，19 (Supp.1)：1 115–1 119.(in Chinese))

[14] 龚建伍. 扁平大断面小净距公路隧道施工力学研究[博士学位论文][D]. 上海：同济大学，2008.(GONG Jianwu. Study on construction mechanical behavior of highway tunnel with large section and small spacing[Ph. D. Thesis][D]. Shanghai：Tongji University，2008.(in Chinese))