EPB/TBM双模盾构复合地层掘进参数及适应性研究*

何川; 黄兴; 陈凡; 宋天田; 毋晨; 王士民

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铁道工程学报 ›› 2023, Vol. 40 ›› Issue (3) : 96-103.

城市轨道工程

EPB/TBM双模盾构复合地层掘进参数及适应性研究^*

何川^1**, 黄兴¹, 陈凡¹, 宋天田², 毋晨³, 王士民¹

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Research on the Tunneling Parameters and Adaptability of EPB/TBM Dual-mode Shield in Composite Strata

HE Chuan¹, HUANG Xing¹, CHEN Fan¹, SONG Tiantian², WU Chen³, WANG Shimin¹

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摘要

研究目的: 为探究EPB/TBM双模盾构在复合地层中的掘进适应性,本文基于深圳地铁12号线怀德站—福永站及13号线留仙洞站—中间风井区间的EPB/TBM双模盾构施工案例,对比分析不同掘进模式下的掘进参数和能源消耗情况的变化规律,以期为类似工程提供参考。
研究结论: (1)双模盾构在软土地层采用EPB模式保证掌子面稳定,硬岩地层采用TBM模式规避掘进速度低及刀具磨损等风险;(2)掘进参数变化规律在软土段EPB模式下表现为“低转速、高扭矩、高推力”,硬岩段TBM模式表现为“高转速、低扭矩、低推力”;(3)微风化岩层TBM模式的推进速度较EPB模式在中风化岩层提升了38%,有效掘进时长占比提升约106.7%;(4)双模盾构能源消耗较软土地层EPB模式并未明显增加;(5)本文研究可为双模盾构在复合地层中的掘进适应性提供参考。

Abstract

Research purposes: For the purpose of exploring the excavation adaptability of EPB/TBM dual-mode shield in composite strata, based on the EPB/TBM dual-mode shield constructions between Huaide station and Fuyong station of Shenzhen metro line 12 and Liuxiandong station to middle shaft of Shenzhen metro line 13, this paper compared and analyzed the variation laws of tunneling parameters and energy consumption under different excavation modes, in order to provide references for similar projects.
Research conclusions: (1) The EPB mode is used for soft soil strata to ensure the stability of the tunnel face, while TBM mode is used for the hard rock strata to avoid the risks of low tunneling speed and unexpected cutter head wear. (2) The variation law of tunneling parameters of EPB mode in soft soil strata is low speed, high torque, and high thrust, while high speed, low torque, and low thrust of TBM mode in hard rock strata. (3) The propulsion speed of the TBM mode in the slightly weathered stratum is about 38% higher than that of the EPB mode in the intermediary weathered stratum, and the proportion of effective excavation time increased by approximately 106.7%. (4) The energy consumption of EPB/TBM dual-mode shield has not increased significantly compared with EPB mode in soft strata. (5) The research in this paper can provide reference for the adaptability of dual-mode shield tunneling in composite strata.

导出引用

何川, 黄兴, 陈凡, 等. EPB/TBM双模盾构复合地层掘进参数及适应性研究^*[J]. 铁道工程学报, 2023, 40(3): 96-103

HE Chuan, HUANG Xing, CHEN Fan, et al. Research on the Tunneling Parameters and Adaptability of EPB/TBM Dual-mode Shield in Composite Strata[J]. Journal of Railway Engineering Society, 2023, 40(3): 96-103

中图分类号： U455.43 U231.3

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