盾构推拼同步技术模型试验平台的研发及应用

doi:10.16183/j.cnki.jsjtu.2021.241

摘要/Abstract

摘要：

为解决长距离盾构隧道项目单台盾构掘进工期过长的问题,以上海市域铁路机场联络线某区间隧道为示范应用工程,开发了基于推进系统油压主动控制理念的盾构推拼同步施工技术.其原理为通过充分利用轴向插入封顶块产生的推进油缸行程富余量进行管片拼装作业,单环管片的作业时间理论上可缩短31.6%.为验证推拼同步技术的可行性与可靠性,构建超大直径盾构推拼同步技术模型试验平台,给出了推拼同步过程中缺失顶力的再分配计算方法,并对该技术进行了模型试验验证.试验结果表明:模型盾构机执行机构响应迅速,推进系统油缸压力和总顶推力误差均控制在±2%以内;盾构姿态偏差控制在±6 mm范围内,盾构推进速度误差范围为 -2~4 mm/min;管片结构受力安全,设计覆土33 m条件下管片抗压安全系数可达1.68.

关键词: 盾构机, 盾构推进, 管片拼装, 同步, 试验平台

Abstract:

Taking a running tunnel of Shanghai Railway Airport connecting line as a demonstration application project, the synchronous technology combining shield tunneling with segment assembling is proposed based on the active control on the oil pressure of the shield thrust system, which can solve the problem of the long construction period produced by a single shield machine employed in a long-distance shield tunnel project. The principle is to make full use of the extra stroke of propulsion cylinders generated by the axial insertion of the key block to assemble segments, and the theoretical operation time of a single ring can be reduced by 31.6%. Then, a large model test platform for this synchronization technology is established to verify its feasibility and reliability, and the redistribution method of the missing thrust force is introduced during the synchronous process, which is verified by the model test. The test results show that the actuators of the shield machine respond quickly, and the errors of the cylinder pressures and total thrust force of the propulsion system are controlled within ±2%. The attitude deviation of the shield machine is controlled within ±6 mm, and the error range of the driving speed is -2 to 4 mm/min. The segments are safe with the designed overburden thickness of 33 m, and the compressive safety coefficient reaches 1.68.

Key words: shield machine, shield tunneling, segment assembling, synchronization, test platform

中图分类号:

U451.5

朱叶艇, 闵锐, 秦元, 吴文斐, 袁鹏, 翟一欣, 朱雁飞. 盾构推拼同步技术模型试验平台的研发及应用[J]. 上海交通大学学报, 2022, 56(7): 897-907.

ZHU Yeting, MIN Rui, QIN Yuan, WU Wenfei, YUAN Peng, ZHAI Yixin, ZHU Yanfei. Development and Application of a Model Test Platform of Synchronous Technology Combining Shield Tunneling with Segment Assembling[J]. Journal of Shanghai Jiao Tong University, 2022, 56(7): 897-907.

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参考文献 15

[1]	张康, 黄亦翔, 赵帅, 等. 基于t-SNE数据驱动模型的盾构装备刀盘健康评估[J]. 机械工程学报, 2019, 55(7): 19-26.
	ZHANG Kang, HUANG Yixiang, ZHAO Shuai, et al. Health assessment of shield equipment cutterhead based on t-SNE data-driven model[J]. Journal of Mechanical Engineering, 2019, 55(7): 19-26. doi: 10.3901/JME.2019.07.019
[2]	LIU Q S, LIU J P, PAN Y C, et al. A wear rule and cutter life prediction model of a 20-in. TBM cutter for granite: A case study of a water conveyance tunnel in China[J]. Rock Mechanics and Rock Engineering, 2017, 50(5): 1303-1320. doi: 10.1007/s00603-017-1176-4 URL
[3]	王吉云. 近十年来中国超大直径盾构施工经验[J]. 隧道建设, 2017, 37(3): 330-335.
	WANG Jiyun. Super-large diameter shield tunneling technologies in China in recent decade[J]. Tunnel Construction, 2017, 37(3): 330-335.
[4]	洪开荣. 我国隧道及地下工程近两年的发展与展望[J]. 隧道建设, 2017, 37(2): 123-134.
	HONG Kairong. Development and prospects of tunnels and underground works in China in recent two years[J]. Tunnel Construction, 2017, 37(2): 123-134.
[5]	LIU T J, HUANG H H, YAN Z R, et al. A case study on key techniques for long-distance sea-crossing shield tunneling[J]. Marine Georesources & Geotechnology, 2020, 38(7): 786-803.
[6]	XU C J, LIU Y K, CAO Z G. Numerical analysis and comparison of soil freezing schemes for replacement of shield tail brush in long-distance tunnel engineering[J]. European Journal of Environmental and Civil Engineering, 2018, 22(Sup. 1): 316-332.
[7]	张昭. 郑州地铁砂性地层盾构长距离掘进技术研究[J]. 隧道建设, 2017, 37(7): 851-856.
	ZHANG Zhao. Technology for long-distance boring of shield in sandy strata: A case study of Zhengzhou metro[J]. Tunnel Construction, 2017, 37(7): 851-856.
[8]	王卫东, 丁文其, 杨秀仁, 等. 基坑工程与地下工程: 高效节能、环境低影响及可持续发展新技术[J]. 土木工程学报, 2020, 53(7): 78-98.
	WANG Weidong, DING Wenqi, YANG Xiuren, et al. Deep excavation engineering and underground engineering—New techniques of high-efficiency and energy-saving, low environmental impact, and sustainable development[J]. China Civil Engineering Journal, 2020, 53(7): 78-98.
[9]	周双禧, 李志华, 陈非龙, 等. 城市轨道交通盾构法隧道施工新技术及应用[J]. 施工技术, 2020, 49(19): 87-92.
	ZHOU Shuangxi, LI Zhihua, CHEN Feilong, et al. New technology and application of shield tunnelling method in urban rail transit tunnels excavation[J]. Construction Technology, 2020, 49(19): 87-92.
[10]	ZHANG Y Q, ZHANG J M, GUO H L, et al. A risk assessment method for metro shield tunnel construction based on interval number[J]. Geotechnical and Geological Engineering, 2020, 38(5): 4793-4809. doi: 10.1007/s10706-020-01328-z URL
[11]	林裕悟, 鹿島竜之介, 島厚夫. F-NAVIシールド工法による高速施工の事例紹介--掘削·セグメント組立同時施工での施工実績 (特集シールド機械と施工)[J]. Construction Machinery and Equipment, 2008, 44(8): 20-26.
	HAYASHI Yugo, RYUNOSUKE Kajima, TOSHIO Shima. Case introduction of F-NAVI high-speed shield construction method: Construction examples of synchronous operation combining the shield tunnelling and segment assembling[J]. Construction Machinery and Equipment, 2008, 44(8): 20-26.
[12]	齋藤進, 室木紀彦, 山本邦男. ラチス式同時施工シールド工法による長距離施工--大阪府寝屋川流域恩智川東幹線下水道工事[J]. Tunnels and Underground, 1999, 30: 717-724.
	SUZUMI Saito, NORIHIKO Muroki, KUNIO Yamamoto. Long distance shield tunnel construction by lattice tunneling method: Project of Eizugawa River main line in Neyagawa River, Osaka Prefecture[J]. Tunnels and Underground, 1999, 30: 717-724.
[13]	須田悦弘. ダブルジャッキ式同時掘進工法の開発 (その3)-東西連係ガス導管新設工事 (富津工区) への適用-[J]. 土木学会第60回年次講演会, 2005, 9: 193-194.
	HIROSHI Suda. Development of double hydro-cylinder type shield method—Part 3: Application to gas conduit project connecting East and West (Futsu works)[J]. The 60th Annual Lecture of Civil Engineering Society, 2005, 9: 193-194.
[14]	奥村組. 新技術活用シリーズ「国土技術開発賞」最優秀賞受賞ハニカムセグメントを用いた同時施工法[J]. 建設オピニオン, 2006, 13: 1-4.
	OKUMURA Kumi. “New technology flexible use system” won the best award, using the synchronous construction method of honeycomb segments[J]. Construction Insights, 2006, 13: 1-4.
[15]	西明良. ロスゼロ工法-シールド部分同時施工法[J]. 土地改良, 2007, 45: 1-3.
	FUKUAKYOSI. LoseZero method:Partial synchronization shield construction method[J]. Land Improvement, 2007, 45: 1-3.

序号	施工参数	控制范围
1	推进系统油压	±2%
2	盾构总顶推力	±2%
3	盾构总顶推力合力矩	±4%
4	盾构姿态偏差/mm	±12
5	盾构推进速度偏差/(mm·min^-1)	-4~+8
6	管片结构抗压安全系数	1.68