Abstract
In view of the water and sand inrush risks faced by large-diameter slurry shield during launching and receiving in the water-rich silty fine sand stratum in the offshore area,the engineering practice of the double-lane shield tunnel at the bottom of the Karnaphuli River in Bangladesh was analyzed.The reasonable ranges of the tunnel portal chiseling thickness and the working shaft end reinforcement length were studied by theoretical calculation and numerical simulation.Finally,the reinforcement effect was evaluated through the analysis of shield tunneling parameters.The research results show that the reasonable range of longitudinal reinforcement of the end of the working shaft in the water-rich sand layer can be obtained by adding 2‒3 m to the length of the shield body.The comprehensive measure of sealed steel sleeve + triple tube high-pressure rotary churning reinforcement + well drainage + curtain for water sealing by grouting can effectively reduce the risk of water and sand inrush during the shield launching and receiving,and it has a high safety factor with good economy.The chiseling thickness of the diaphragm wall at the tunnel portal is 60 cm,which can ensure the safety of the tunnel portal and the construction progress.
Publication Date
4-10-2025
DOI
10.14048/j.issn.1671-2579.2025.02.025
First Page
221
Last Page
228
Submission Date
April 2025
Recommended Citation
Jingtao, YU; Feilei, ZHANG; He, ZHANG; and Chao, XU
(2025)
"Application Research on Steel Sleeve Combined with Working Shaft End Reinforcement for Shield Launching and Receiving Technology,"
Journal of China & Foreign Highway: Vol. 45:
Iss.
2, Article 25.
DOI: 10.14048/j.issn.1671-2579.2025.02.025
Available at:
https://zwgl1980.csust.edu.cn/journal/vol45/iss2/25
Reference
[1]王天明,戴志仁.盾构法隧道端头井地层加固方法及其应用研究 [J].铁道工程学报,2014,31(8):90-95,100.WANG Tianming,DAI Zhiren.Application on ground reinforcement method of launching shaft for shield tunnel[J].Journal of Railway Engineering Society,2014,31(8):90-95,100.
[2]孙超,张光伟.超大直径盾构空推段明挖隧道断面形式研究 [J].中外公路，2025,45（1）：204-211.SUN Chao,ZHANG Guangwei.Section form of open-cut tunnel by ultra-large-diameter shield empty-push technology [J].Journal of China & Foreign Highway,2025，45(1):204-211.
[3]佟彬，张斌，朱汉标，等.双模盾构土压模式下下穿珠江断裂带开挖面稳定性研究 [J].中外公路，2024,44（5）：232-240.TONG Bin,ZHANG Bin,ZHU Hanbiao,et al.Stability of excavation face of double-mode shield in earth pressure mode crossing fault zone of pearl river [J].Journal of China & Foreign Highway,2024，44(5):232-240.
[4]江玉生,杨志勇,江华,等.论土压平衡盾构始发和到达端头加固的合理范围 [J].隧道建设,2009,29(3):263-266.JIANG Yusheng,YANG Zhiyong,JIANG Hua,et al.Study on reasonable strata improvement scopes for EPB shield driving at its start and arrival [J].Tunnel Construction,2009,29(3):263-266.
[5]李大勇,王晖,王腾.盾构机始发与到达端头土体加固分析[J].铁道工程学报,2006,23(1):87-90.LI Dayong,WANG Hui,WANG Teng.Analysis of soil reinforcement for the starting and arriving of shield machine in metro construction [J].Journal of Railway Engineering Society,2006,23(1):87-90.
[6]马芸,段琼,桂超.地下隧道施工盾构端头土体加固三维有限元参数化分析:以天津地铁 6号线宜宾道站—鞍山西道站区间隧道开挖工程为例 [J].科学技术与工程,2020,20(21):8724 -8731.MA Yun,DUAN Qiong,GUI Chao.Three-dimensional finite element parametric analysis of soil reinforcement at the end of shield tunnel construction:Take the tunnel excavation project between Yibin Road Station and Anshan West Road Station of Tianjin metro line 6 as an example [J].Science Technology and Engineering,2020,20(21):8724 -8731.
[7]石宗涛.超大直径盾构工作井端头加固合理范围研究[J].铁道建筑技术,2022 (2):127-131,141.SHI Zongtao.Research on the reasonable range of end reinforcement of large diameter shield working shaft [J].Railway Construction Technology,2022 (2):127-131,141.
[8]高瑞,岳红波,梁聪,等.封闭环境下冻结法辅助钢套筒盾构施工关键技术研究 [J].施工技术,2021,50(4):57-60.GAO Rui,YUE Hongbo,LIANG Cong,et al.Research on key technology of freezing-assisted steel sleeve shield construction in closed environment [J].Construction Technology,2021,50(4):57-60.
[9]陈少林,黄新淼,杨杰,等.临海竖井 4台大直径泥水盾构双向分体始发关键技术:以福州滨海快线滨机区间隧道工 程 为 例 [J].隧 道 建 设 (中 英 文 ),2022,42(增 刊 2):449-457.CHEN Shaolin,HUANG Xinmiao,YANG Jie,et al.Key technology of two-way split initiation of four large-diameter slurry shields in Linhai shaft:Taking Binhai-airport tunnel project of Fuzhou Binhai Express Line as an example [J].Tunnel Construction,2022,42(sup 2):449-457
[10]李震.地铁盾构钢套筒接收与旋喷桩端头加固应用对比研究 [J].建筑机械,2018 (9):61-64.LI Zhen.Comparative study on application of metro shield steel sleeve receiving and rotary jet grouting pile end reinforcement [J].Construction Machinery,2018 (9):61-64.
[11]陈树茂,方一航,袁梦,等.地铁盾构隧道无端墙密闭钢套筒接收技术研究 [J].广东土木与建筑,2018,25(7):39-42.CHEN Shumao,FANG Yihang,YUAN Meng,et al.Study on receiving technology of closed steel bushing for metro tunnel shield without end wall [J].Guangdong Architecture Civil Engineering,2018,25(7):39-42.
[12]刘阳君,杨智麟,羊涛,等.密闭钢套筒 +冷冻法加固盾构接收技术 [J].现代隧道技术,2020,57(增刊 1):974-979.LIU Yangjun,YANG Zhilin,YANG Tao,et al.Shield receiving technology strengthened by closed steel sleeve and freezing method [J].Modern Tunnelling Technology,2020,57(sup 1):974-979.
[13]岳红波,梁聪,刘媛莹,等.杯形水平冻结法端头加固联合钢套筒盾构接收技术研究 [J].施工技术,2020,49(4):19-21.YUE Hongbo,LIANG Cong,LIU Yuanying,et al.Study on shields rreceiving technology of cup-shape horizontal freezing method for end reinforcement combined with steel sleeves [J].Construction Technology,2020,49(4):19-21.
[14]沈伟,俞淼,付春青,等.盾构隧道冻结法与钢套筒联合接收施工技术 [J].兰州交通大学学报,2021,40(1):20-26.SHEN Wei,YU Miao,FU Chunqing,et al.Research on combined construction technology of freezing and steel sleeve for shield tunnel receiving [J].Journal of Lanzhou Jiaotong University,2021,40(1):20-26.
[15]刘华,何源,钟涵,等.滨海地区富水粉细砂层大直径泥水盾构钢套筒接收关键技术:以孟加拉卡纳普里河底隧道工程盾构段为例 [J].隧道建设 (中英文 ),2021,41(7):1225 -1233.LIU Hua,HE Yuan,ZHONG Han,et al.Key technologies for steel sleeve receiving of a large-diameter slurry shield in water-rich silty-fine sand strata in coastal area:A case study of Karnaphuli River-crossing tunnel in Bangladesh[J].Tunnel Construction,2021,41(7):1225 -1233.
[16]周天豪,邱国勇,王福兴,等.富水砂层冻结法加固地层结合密闭式钢套筒盾构接收技术 [J].建筑技术,2022,53(9):1149 -1151.ZHOU Tianhao,QIU Guoyong,WANG Fuxing,et al.Shield receiving technology of freezing reinforcement of water-rich sand stratum in combination with closed steel sleeve[J].Architecture Technology,2022,53(9):1149 -1151.
[17]中冶集团武汉勘察研究院有限公司.管井技术规范:GB 50296—2014 [S].北京:中国计划出版社,2015.Wuhan Surveying-Geotechnical Research Institute Co.，Ltd.，MCC.Technical code for tube well:GB 50296—2014[S].Beijing:China Planning Press,2015.