浅埋破碎岩体中大跨隧道断面扁平率优化研究

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Abstract The design of reasonable flat ratios for flat and large span shallow tunnel has very important effect on cost saving and expense reduction for ventilation and lighting. Therefore，optimizing the flat ratios of shallow large-span tunnel is the key problem faced by the tunnel design and construction. Firstly，program with the standard design language Python of general-purpose finite element software ABAQUS to achieve parametric design for the different flat ratios of large-span Panlong tunnel in shallow broken rock mass planned to be constructed in Qingyuan City. Then，the stability and deformation failure of tunnel structure under 5 kinds of flat ratios are researched. Target values of excavation area，horizontal convergence，ground surface settlement，vault subsidence，etc. which affect the stability of flat tunnels，are optimized using the analytic hierarchy process(AHP) and determining their weight vectors. Finally，the optimal flat ratio under supported project is put forward. The results and method of this paper provide reference for the section optimization design of tunnel engineering in equivalent conditions.

Key words： tunnelling engineering flat ratios parametric modeling section optimization

Received: 08 March 2010

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https://rockmech.whrsm.ac.cn/EN/Y2011/V30/I7/1389

[1] 曲海锋. 扁平特大断面隧道修筑及研究概述[J]. 隧道建设，2009，29(2)：166–171.(QU Haifeng. An overview on construction and research of super-large cross-section tunnels with low height-span ratios[J]. Tunnel Construction，2009，29(2)：166–171.(in Chinese)) [2] 蔡新，李洪煊，武颖利，等. 水下隧道结构优化设计[J]. 河海大学学报：自然科学版，2009，37(6)：665–668.(CAI Xin，LI Hongxuan，WU Yingli，et al. Optimal design of structure of underwater tunnels[J]. Journal of Hohai University：Natural Science，2009，37(6)：665–668.(in Chinese)) [3] 张丙强，蔡雪峰，李俐勋. 单洞四车道公路隧道优化研究[J]. 华东公路，2007，(4)：57–60.(ZHANG Bingqiang，CAI Xuefeng，LI Lixun. The optimization of single-hole and four-lane road tunnel[J]. East China Highway，2007，(4)：57–60.(in Chinese)) [4] REN G，SMITH J V，TANG J W，et al. Underground excavation shape optimization using an evolutionary procedure[J]. Computers and Geotechnics，2005，32(2)：122–132. [5] 吕爱钟. 地下洞室最优开挖形状的确定方法[J]. 岩石力学与工程学报，1996，15(3)：275–281.(LU Aizhong. The method for optimum shapes of tunnels and cavities[J]. Chinese Journal of Rock Mechanics and Engineering，1996，15(3)：275–281.(in Chinese)) [6] 杨万斌，薛玺成. 地下洞室的间距和断面优化计算方法[J]. 岩土工程学报，2001，23(1)：61–63.(YANG Wanbin，XUE Xicheng. The optimized calculation method for spacing and cross section of underground tunnels[J]. Chinese Journal of Geotechnical Engineering，2001，23(1)：61–63.(in Chinese)) [7] 周丁恒，曹力桥，马永峰，等. 四车道特大断面大跨度隧道施工中支护体系力学性态研究[J]. 岩石力学与工程学报，2010，29(1)：140–148.(ZHOU Dingheng，CAO Liqiao，MA Yongfeng，et al. Research on construction behaviors of support system in four-lane ultra large-span tunnel with super-large cross-section[J]. Chinese Journal of Rock Mechanics and Engineering，2010，29(1)：140–148.(in Chinese)) [8] 曾宜江，杨小礼. 单拱四车道公路隧道断面的优化[J]. 石河子大学学报：自然科学版，2008，26(5)：616–620.(ZENG Yijiang，YANG Xiaoli. Cross-section optimum investigation of single-arch four-lane road tunnels[J]. Journal of Shihezi University：Natural Science，2008，26(5)：616–620.(in Chinese)) [9] 王莲芬，许树柏. 层次分析法引论[M]. 北京：中国人民大学出版社，1990：2–13.(WANG Lianfen，XU Shubai. An introduction to analytic hierarchy process[M]. Beijing： Renmin University of China Press，1990：2–13.(in Chinese)) [10] NO S L，NOH S H，LEE S P，et al. Construction of long and large twin tube tunnel in Korea—Sapaesan tunnel[J]. Tunnelling and Underground Space Technology，2006，21(3/4)：393. [11] BROX D，HAGEDORN H. Extreme deformation and damage during the construction of large tunnels[J]. Tunnelling and Underground Space Technology，1999，14(1)：23–28. [12] HKS Company. ABAQUS Analysis user?s manual[R]. [S.l.]：HKS Company，2004. [13] 曲海锋，朱合华，蔡永昌. 曲率半径对临时支护及核心土的受力影响分析[J]. 岩土力学，2008，29(7)：1 778–1 782.(QU Haifeng，ZHU Hehua，CAI Yongchang. Analysis of influence of curvature radius of core-soil temporary support in double pilot tunnel excavation method[J]. Rock and Soil Mechanics，2008，29(7)：1 778–1 782.(in Chinese)) [14] 曾中林. 单拱四车道公路隧道断面设计优化与施工力学研究[硕士学位论文][D]. 长沙：中南大学，2006. (ZENG Zhonglin. Study on the cross-section optimum and construction mechanic of single-arch four-lane road tunnel[M. S. Thesis][D]. Changsha：Central South University，2006.(in Chinese)) [15] 许建聪，王余富. 水下隧道裂隙围岩渗流控制因素敏感性层次分析[J]. 岩土力学，2009，30(6)：1 917–1 925.(XU Jiancong，WANG Yufu. Analytic hierarchy process of factor sensitivity on seepage control of underwater tunnel fissured surrounding rock[J]. Rock and Soil Mechanics，2009，30(6)：1 917–1 925.(in Chinese))