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基于施工安全性的海底隧道断面优化研究

Keywords: 海底隧道,优化设计,拱顶沉降,一阶优化,施工安全

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Abstract:

为了控制地层裂缝的产生和贯穿从而防止突涌水事故的发生,把拱顶沉降作为优化设计中的控制指标,通过控制拱顶沉降来达到控制拱顶地层裂缝产生和贯穿的目的.针对全封堵的防排水形式和有限元软件特点提出了通过等效泊松比的方法来施加围岩荷载和水荷载的思路;提出了包括最优化参数获取,设计变量敏感性分析和优化设计效果评价在内的完整的优化设计分析过程;针对青岛胶州湾海底隧道的具体断面形式进行优化分析:优化后拱顶沉降值减小为原设计的44%;以获得的最优设计为参考点,分析了设计变量的改变对拱顶沉降的影响,分析得出的规律性认识可以更好地指导设计;通过比较优化前后衬砌结构受力,可知优化后的衬砌结构在受力方面也得到了改善.

References

[1]  BJORKMAN G S,RICHARDS R.Harmonic hole for nonconstant field[J].ASME Journal of Applied Mechanics,1979,46:573-576.
[2]  RICHARDS R,BJORKMAN G S.Optimum shapes for tunnels and cavities.Proceedings of the 17th United States Symposiumon Rock Mechanics[C]∥Salt Lake City:University of Utah,1976:1-6.
[3]  RICHARDS R,BJORKMAN G S.Optimum shapes for unlined tunnels and cavities[J].Engineering Geology,1978,12:171-179.
[4]  DHIR S K.Optimization in a class of hole shapes in plate structures[J].ASME Journal of Applied Mechanics,1981,48:905-908.
[5]  孙焕纯,张巨勇,严国梅,等.弹性平面孔洞形状优化复变函数方法[J].应用数学和力学,1978,8(2):133-141.SUN Huan-chun,ZHANG Ju-yong,YAN Guo-mei,et al.Complex variable function method for hole shape optimization in anelastic plane[J].Applied Mathematics and Mechanics,1978,8(2):133-141.(in Chinese)
[6]  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.L Ai-zhong.The method for optimum shapes of tunnels and cavities[J].Chinese Journal of Rock Mechanics andEngineering,1996,15(3):275-281.(in Chinese)
[7]  于学馥,乔端.轴变论和围岩稳定轴比三规律[J].有色金属,1981,33(3):8-15.YU Xue-fu,QIAO Duan.Theory of axial variation and three rules of axial ratio for stabilizing country rock[J].NonferrousMetals,1981,33(3):8-15.(in Chinese)
[8]  刘小兵.地下洞室的一种优化设计模型[J].地下空间,1995,15(1):34-38.LI U Xiao-bing.An optimization design model for underground cave[J].Underground Space,1995,15(1):34-38.(inChinese)
[9]  李术才,徐帮树,李树忱.海底隧道衬砌结构选型及参数优化研究[J].岩石力学与工程学报,2005,24(21):3894-3902.LI Shu-cai,XU Bang-shu,LI Shu-chen.Lining structure type of subsea tunnel and its support parameters optimizing[J].Chinese Journal of Rock Mechanics and Engineering,2005,24(21):3894-3902.(in Chinese)
[10]  冯紫良.地下洞室形状设计优化的一个方法[J].岩土工程学报,1993,15(3):30-36.FENG Zi-liang.An approach to optimal shape design of underground cavern[J].Chinese Journal of GeotechnicalEngineering,1993,15(3):30-36.(in Chinese)
[11]  BJORKMAN G S,RICHARDS R.Harmonic hole-an inverse problem in elasticity[J].ASME Journal of Applied Mechanics,1976,43:414-418.
[12]  吕勤,张顶立,黄俊.城市地铁暗挖施工地层变形机理及控制实践[J].中国安全科学学报,2003,13(7):29-34.L Qin,ZHANG Ding-li,HUANG Jun.Mechanism of stratum deformation and its control practice in tunneling urban subwayat shallow depth[J].China Safety Science Journal,2003,13(7):29-34.(in Chinese)
[13]  张顶立.海底隧道不良地质体及结构界面的变形控制技术[J].岩石力学与工程学报,2007,26(11):2161-2169.ZHANG Ding-li.Deformation control techniques of unfavorable geologic bodies and discontinuous surfaces[J].ChineseJournal of Rock Mechanics and Engineering,2007,26(11):2161-2169.(in Chinese)

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