基于正交试验、组合赋权-灰色关联度法研究隧道施工最优方案
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摘要
为保证浅埋暗挖大断面隧道施工稳定性,提出正交试验、组合赋权-灰色关联度法研究隧道施工最优方案,确保隧道顺利竣工。依托北京地铁17号线天通苑站出入段线大断面浅埋暗挖渐变隧道工程,首先根据影响隧道施工稳定性的因素,构建L_(16)(5×4)正交表进行正交试验,建立三维模型,然后采用组合赋权-灰色关联度法对试验数据进行处理,关联度越高说明隧道稳定性越好,通过各水平平均关联度选择最优方案,将最优方案运用于天通苑站浅埋暗挖隧道。研究结果表明:最优方案的各项数据均比原始方案小,而且施工现场地面未出现明显裂缝,隧道稳定性较好,说明组合赋权-灰色关联度法在实际工程中有较高的实用性,对于类似复杂隧道工程也有借鉴意义。
In order to ensure the stability of shallow-buried,subsurface-excavated and large-section tunnel construction,it was proposed to study the optimal scheme of tunnel construction by using the orthogonal test and the combined weighting-grey correlation method,so as to ensure the smooth completion of the tunnel. Relying on the large-section,shallow-buried,subsurfaceexcavated and gradient tunnel project of the Tiantongyuan Station of Beijing Metro Line 17,firstly,according to the factors affecting the stability of tunnel construction,an L_(16)( 5 × 4) orthogonal table was constructed for the orthogonal test,and a three-dimensional model was established. Then the combined weighting-grey correlation method was used to process the test data. The higher the correlation degree,the better the stability of the tunnel. The optimal scheme was selected by the average correlation degree of each level,and the optimal scheme was applied to the shallow-buried and subsurface-excavated tunnel of Tiantongyuan Station. The results showed that the data of the optimal scheme were smaller than the original scheme,and there was no obvious crack on the ground at the construction site,and the tunnel stability was good. It showed that the combination weighting-grey correlation method has higher practicability in the practical engineering,and is also useful for similar complex tunnel projects.
In order to ensure the stability of shallow-buried,subsurface-excavated and large-section tunnel construction,it was proposed to study the optimal scheme of tunnel construction by using the orthogonal test and the combined weighting-grey correlation method,so as to ensure the smooth completion of the tunnel. Relying on the large-section,shallow-buried,subsurfaceexcavated and gradient tunnel project of the Tiantongyuan Station of Beijing Metro Line 17,firstly,according to the factors affecting the stability of tunnel construction,an L_(16)( 5 × 4) orthogonal table was constructed for the orthogonal test,and a three-dimensional model was established. Then the combined weighting-grey correlation method was used to process the test data. The higher the correlation degree,the better the stability of the tunnel. The optimal scheme was selected by the average correlation degree of each level,and the optimal scheme was applied to the shallow-buried and subsurface-excavated tunnel of Tiantongyuan Station. The results showed that the data of the optimal scheme were smaller than the original scheme,and there was no obvious crack on the ground at the construction site,and the tunnel stability was good. It showed that the combination weighting-grey correlation method has higher practicability in the practical engineering,and is also useful for similar complex tunnel projects.
引文
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[16]陶志刚,朱淳,何满潮,等.基于正交设计的露天矿V形槽结构滚石防护试验[J].煤炭学报. 2017,42(9):2307-2315.TAO Zhigang,ZHU Chun,HE Manchao,et al. Rolling stone protection test of V-groove structure in open pit mine based on orthogonal design[J]. Journal of Coal Mine. 2017,42(9):2307-2315.
[2]来弘鹏,康佐,谢永利,等.地铁区间隧道黄土地层注浆预加固技术研究[J].中国铁道科学. 2014,35(1):47-54.LAI Hongpeng,KANG Zuo,XIE Yongli,et al. Study on grouting prereinforcement technology of loess stratum in metro tunnel[J]. China Railway Science. 2014,35(1):47-54.
[3]汪波,李铮,张哲,等.砂土地层浅埋暗挖隧道预加固技术研究[J].工程地质学报. 2016,24(4):635-641.WANG Bo,LI Zheng,ZHANG Zhe,et al. Study on pre-reinforcement techno-logy of shallow buried tunnels in sandy soil[J]. Journal of Engineering Geology. 2016,24(4):635-641.
[4]刘泉声,彭星新,雷广峰,等.特大断面浅埋暗挖隧道十字岩柱开挖技术模型试验研究[J].岩土力学. 2017,38(10):2780-2788.LIU Quansheng,PENG Xingxin,LEI Guangfeng,et al. Model test study on cross-pillar excavation technology of shallow-buried tunnel with super-large cross-section[J]. Geotechnical Mechanics. 2017,38(10):2780-2788.
[5]黄鑫,姚韦靖.多因素影响下巷道变形特性数值模拟研究[J].中国安全生产科学技术. 2019,15(4):32-38.HUANG Xin,YAO Weijing. Numerical simulation of roadway deformation characteristics under the influence of multi-factors[J].China Safety Production Science and Technology. 2019,15(4):32-38.
[6]吴波.复杂条件下城市地铁隧道施工地表沉降研究[D].成都:西南交通大学,2003.
[7]吴波,刘维宁,高波,等.城市浅埋隧道施工性态的时空效应分析[J].岩土工程学报. 2004,26(3):340-343.WU Bo,LIU Weining,GAO Bo,et al. Spatial-temporal effect analysis of construction behavior of urban shallow tunnel[J]. Journal of Geotechnical Engineering. 2004,26(3):340-343.
[8]李梓源,王海亮.基于灰色关联度分析法的浅埋隧道围岩稳定性研究[J].安全与环境学报. 2017,17(6):2079-2082.LI Ziyuan,WANG Hailiang. Study on stability of surrounding rock of shallow-buried tunnel based on grey correlation analysis[J]. Journal of Safety and Environment. 2017,17(6):2079-2082.
[9] GAO Chenglu,LI Shucai,WANG Jing,et al. The risk assessment of tunnels based on grey correlation and entropy weight method[J].Geotechnical and Geological Engineering. 2018(36):1621-1631.
[10] KE Wu,YU Yalin,CUI Shuaishuai,et al. Construction mechanical mechanism of shallow subway tunnel group with large-span variable cross section[J]. Geotechnical and Geological Engineering. 2018(36):3879-3891.
[11]赵挺生,任玲玲,周炜,等.基于熵权法-CIM模型的高速公路施工临近房屋安全风险评价[J].中国安全生产科学技术. 2017,13(3):174-179.ZHAO Tingsheng,REN Lingling,ZHOU Wei,et al. Safety risk assessment of expressway construction adjacent to buildings based on entropy weight Method-CIM model[J]. China Safety Science and Technology. 2017,13(3):174-179.
[12] HYUN K C,MIN S,CHOI H,et al. Risk analysis using fault-tree analysis(FTA)and analytic hierarchy process(AHP)applicable to shield TBM tunnels[J]. Tunnelling and Underground Space Technology. 2015(49):121-129.
[13] SUN W,LI D,LIU P. A decision-making method for sponge city design based on grey correlation degree and TOPSIS method[J]. Journal of Interdisciplinary Mathematics. 2018(21)1031-1042.
[14]邱自学,鞠家全,任东,等.基于正交试验、组合赋权-灰色关联的机床横梁优化设计[J].振动与冲击. 2017,36(12):105-111.QIU Zixue,JU Jiaquan,REN Dong,et al. Optimum design of machine tool cross beam based on orthogonal test,combined weightinggrey correlation[J]. Vibration and Impact. 2017,36(12):105-111.
[15]康立鹏,施成华,彭立敏,等.基于正交试验的立体交叉隧道施工影响因素研究[J].铁道科学与工程学报. 2012,9(4):70-74.KANG Lipeng,SHI Chenghua,PENG Limin,et al. Influencing factors of three-dimensional intersection tunnel construction based on orthogonal test[J]. Journal of Railway Science and Engineering.2012,9(4):70-74.
[16]陶志刚,朱淳,何满潮,等.基于正交设计的露天矿V形槽结构滚石防护试验[J].煤炭学报. 2017,42(9):2307-2315.TAO Zhigang,ZHU Chun,HE Manchao,et al. Rolling stone protection test of V-groove structure in open pit mine based on orthogonal design[J]. Journal of Coal Mine. 2017,42(9):2307-2315.
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