通用管片是盾构隧道中应用较为广泛的管片类型,施工过程中选择不同的拼装点位使拼装完成的管片姿态匹配盾构机姿态,保证盾尾内拼装的管片在盾构机掘进的过程中不被挤压。为实现施工过程中管片拼装点位自动化选取,提升管片拼装质量,本文提出通用型管片拼装点位动态选取方法。利用盾构机掘进参数解算盾构机掘进姿态与管片姿态的空间几何关系,以管片拼装的盾尾间隙变化量为优化控制目标,考虑盾尾平面与管片末端面方向偏差、推进油缸行程差、管片拼装点位对管片拼装盾尾间隙的影响,建立管片拼装动态选取点位的优化函数,可解决盾构施工过程管片点位选取困难的问题。以南京江心洲隧道工程为例,采用MATLAB软件编写管片点位动态选取优化算法,与工程实测盾尾间隙相对比,该方法预测的盾尾间隙与实际吻合较好,验证了该方法的可行性。与人工经验选点方法相比,采用该方法选点后管片拼装盾尾间隙偏差更小,有利于提高管片拼装质量。
Universal segments are a widely used type of tunnel lining segments in shield tunneling. During construction, different assembly positions are selected to ensure that the assembled segments match the attitude of the shield machine, and that the segments at the tail of the shield are not squeezed during the tunneling process. In order to realize automatic selection of segment assembly points in the construction process and improve the quality of segment assembly, a dynamic selection method of general type segment assembly points was proposed. The spatial geometric relationship between the driving attitude of the shield machine and the attitude of the segment is solved by using the driving parameters of the shield machine. With the change of the shield tail clearance as the optimization control objective, the influence of the direction deviation between the shield tail plane and the end surface of the segment, the stroke difference of the propulsion cylinder and the point position of the segment assembly on the shield tail clearance is considered, and the optimization function of the dynamic selection point of the segment assembly is established. It can solve the difficult problem of segment point selection during shield construction. Taking the Jiangxinzhou Tunnel project in Nanjing as an example, MATLAB software was used to edit the optimization algorithm of segment point selection, and the predicted gap of the shield tail was in good agreement with the measured results, which effectively verified the feasibility of the method. Compared with the manual experience method, the gap deviation of shield tail is smaller after the point selection, which is conducive to improving the quality of segment assembly.
[1] Swartz S, Tzobery S, Hemphill G B. Trapezoidal tapered ring-Key position selection in curved tunnels [A]// 17th Rapid Excavation and Tunneling Conference[C]. Seattle.2005: 957-969.
[2] 张志华,朱国力,隆泗.盾构管片排版计算方法的研究[J].地下空间与工程学报,2013,9(5):1040-1044,1086. (Zhang Zhihua, Zhu Guoli, Long Si. Study on calculating method for composition of segments for shield tunnels[J]. Journal of Underground Space and Engineering, 2013,9(5):1040-1044,1086. (in Chinese))
[3] 张红薇.基于Revit的盾构通用管片参数化建模及排版过程研究[J].铁道建筑技术,2021(12):49-52,91. (Zhang Hongwei. Research on parameterization modeling and layout process of general segment based on Revit[J]. Railway Construction Technology, 2021(12):49-52,91. (in Chinese))
[4] 储柯钧.地铁盾构管片在平、竖曲线上的排版探讨[J].隧道建设,2007(4):20-22,25. (Chu Kejun. Array of segment rings for shield-driven metro tunnels[J]. Tunnel Construction, 2007(4):20-22,25. (in Chinese))
[5] 李永明,张恺韬,郭哲良,等.基于CATIA软件的楔形盾构隧道管片参数化建模与排版[J].隧道建设,2019,39(3):391-397. (Li Yongming, Zhang Kaitao, Guo Zheliang, et al. Parametric modeling and segment layout of wedge shield tunnel segment based on software CATIA [J]. Tunnel Construction, 2019,39(3):391-397. (in Chinese))
[6] 刘凤华. 盾构隧道通用管片拟合排版与管片选型技术研究[D].上海:同济大学,2007. (Liu Fenghua. Study on the composition and ring selection technology of universal segments for shield-driven tunnels [D]. Shanghai: Tongji University,2007. (in Chinese))
[7] 张志华. 盾构管片优化排版方法研究[D].武汉:华中科技大学,2012. (Zhang Zhihua. Research on optimized composition of segments for shield tunnels [D]. Wuhan: Huazhong University of Science and Technology, 2012. (in Chinese))
[8] 周彬. 盾构隧道通用管片拟合排版和动态纠偏实现方法研究与分析[D].南昌:华东交通大学,2009. (Zhou Bin. Study and analysis on implemented-ways of composition and dynamic deviation correction of universal segments for shield tunnel [D]. Nanchang: East China Jiao Tong University, 2009. (in Chinese))
[9] 闫静茹,张文萃.盾构隧道通用环管片点位选择计算方法研究[J].地下空间与工程学报,2019,15(增2):577-582. (Yan Jingru, Zhang Wencui. Study on the calculation of position selection of universal ring segment in shield tunneling construction [J]. Journal of Underground Space and Engineering, 2019,15(Supp.2):577-582. (in Chinese))
[10] 陈仙宇.福州地铁滨海快线区间通用环管片选型研究[J].福建建筑,2021(4):66-69,81. (Chen Xianyu. Study on selection of general ring segment in fuzhou metro line F1 [J]. Fujian Architecture, 2021(4):66-69,81. (in Chinese))
[11] 田海洋,季倩倩,陆雅萍.长距离越江跨海盾构隧道三维轴线控制技术[J].地下空间与工程学报,2011,7(1):121-126,149.(Tian Haiyang, Ji Qianqian, Lu Yaping. The three-dimensional axis control technology of long-distance cross-sea-river shield tunnel [J]. Journal of Underground Space and Engineering, 2011,7(1):121-126,149. (in Chinese))
[12] 王凯.通用楔形管片拼装点位快速选择方法及辅助工具[J].建筑施工,2022,44(11):2701-2704. (Wang kai. Quick selection method and auxiliary tools for general wedge-shaped segment assembly points [J]. Building Construction, 2022,44 (11): 2701-2704. (in Chinese))
[13] 杨钊,熊栋栋,许超,等.基于参数智能化采集的盾构管片自动选型算法研究[J].隧道建设,2022,42(5):817-825. (Yang Zhao, Xiong Dongdong, Xu Chao, et al. Automatic selection algorithm for shield tunnel segment rings based on intelligent acquisition of parameters [J]. Tunnel Construction, 2022,42 (5): 817-825. (in Chinese))
[14] 胡长明,张文萃,梅源,等.通用环管片点位确定条件下千斤顶行程差范围计算及其对盾构机推进过程的控制[J].中国铁道科学,2015,36(3):51-57. (Hu Changming, Zhang Wencui, Mei Yuan, et al. Calculation of jack stroke difference range and advancing control of shield machine under known point position of universal ring segment [J]. Chinese Railway Science, 2015, 36(3):51-57. (in Chinese))
[15] 于万友.盾尾间隙控制分析[J].华东交通大学学报,2022,39(3):47-53.(Yu Wanyou. Analysis of shield tail clearance control [J]. Journal of East China Jiaotong University,2022,39(3):47-53. (in Chinese))
