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隧道建设(中英文) ›› 2024, Vol. 44 ›› Issue (3): 586-595.DOI: 10.3973/j.issn.2096-4498.2024.03.016

• 施工技术 • 上一篇    下一篇

三模式掘进机选型及模式转换技术研究:以广州市地铁7号线为例

郭俊平1, 马经哲1, 汤勇茂2, 尹富斌3, 罗杰4   

  1. 1. 中铁隧道集团三处有限公司, 广东 深圳 518052 2. 广州地铁集团有限公司, 广东 广州 510335; 3. 中铁(广州)投资发展有限公司, 广东 广州 510000 4. 西南交通大学, 四川 成都 610031
  • 出版日期:2024-03-20 发布日期:2024-04-28
  • 作者简介:郭俊平(1977—),男,内蒙古乌兰察布人,2002年毕业于合肥工业大学,工程管理专业,本科,高级工程师,现从事隧道与地下工程方面的技术工作。Email: 652755448@qq.com。

ModeSelection and Conversion Technology for ThreeMode Tunnel Boring Machine: A Case Study of Guangzhou Metro Line 7

GUO Junping1, MA Jingzhe1, TANG Yongmao2, YIN Fubin3, LUO Jie4   

  1. (1. The 3rd Engineering Co., Ltd. of China Railway Tunnel Group, Shenzhen 518052, Guangdong, China; 2. Guangzhou Metro Group Co., Ltd., Guangzhou 510335, Guangdong, China; 3. China Railway (Guangzhou)  Investment Development Co., Ltd., Guangzhou 510000, Guangdong, China; 4. Southwest Jiaotong University, Chengdu 610031, Sichuan, China)
  • Online:2024-03-20 Published:2024-04-28

摘要: 为解决复杂多变地层条件下单一模式或双模式掘进机适应性不足的问题,依托广州地铁7号线萝岗站—水西站区间三模式掘进机施工案例,开展三模式掘进机选型及模式转换技术研究。该区间包含软土、富水砂层、硬岩等复杂多变的地质,通过对区间地质特征、掘进风险、模式适应性等方面的综合分析,结合三模式掘进机工程应用效果的反馈和进一步探究,确定三模式掘进机选型及模式转换方案。结果表明: 1)长距离、高强度硬岩地层适合采用敞开式硬岩模式,沉降要求高的富水砂层适合采用泥水平衡模式,带孤石的软土地层适合采用土压平衡模式; 2)集3种模式于一体的三模式掘进机能有效解决地铁盾构区间穿越多种复杂地层(软土地层、沉降控制要求高的地层以及硬岩地层)时的盾构选型和地层适应性问题,实现掘进机多模式一体、一键切换、一机多用; 3)掘进模式转换流程、工艺的工程应用,形成了掘进模式快速、安全转换技术; 4)硬岩掘进的双排渣方案能有效解决一般硬岩条件下的高效排渣(硬岩掘进螺旋输送机出渣模式)和硬岩富水条件下的防喷涌(硬岩掘进泥水出渣模式)问题。

关键词: 三模式掘进机, 掘进机选型, 转换流程, 模式转换技术

Abstract: Tunnel boring machines with single or dualmodes often face challenges adapting to complex geological conditions. Therefore, the modeselection and conversion technology for threemode tunnel boring machines using the Luogang stationShuixi station section of the Guangzhou metro line 7 as a case study. This project section encompasses soft soil, waterrich sand, and hard rock strata. The tunnel boring machines geological characteristics, tunneling risk, and mode adaptability are comprehensively examined, providing guidance for modeselection and conversion technology for threemode tunnel boring machines. The results demonstrate the following: (1) The open and hard rock mode is suitable for long hard rock formations with high strength,  the slurry balance mode is effective in waterrich sandy strata with high settlement requirement, and the earth pressure balance mode is effective in soft soil layer with boulders. (2) The threemode tunnel boring machine exhibits adaptability to various geological strata, facilitating functional integration and ease of operation. (3) The modeconversion capability of the tunnel boring machine is rapid, enabling fast construction. The screw and slurry mucking modes efficiently handle mucking operations and prevent slurry gushing under hard rock and waterrich challenging conditions, respectively.

Key words:  , threemode tunnel boring machine, selection of tunnel boring machine, mode conversion process, mode conversion technology