基于掘进参数的泥水平衡盾构机掘进效率研究  

Study on Tunneling Efficiency of Slurry Shield MachineBased on Tunneling Parameters

作　　者：李尚革 冯雪亮 LI Shangge;FENG Xueliang(Guangdong Hydropower Planning&Design Institute Co.,Ltd.,Guangzhou 510635,China)

机构地区：[1]广东省水利电力勘测设计研究院有限公司,广州510635

出　　处：《广东水利水电》2024年第10期29-34,41,共7页Guangdong Water Resources and Hydropower

摘　　要：为探究泥水平衡盾构机在不同岩性地层下掘进参数对掘进效率的影响,以珠三角水资源配置工程B2标引水隧洞工程现场实测数据为基础,对泥水平衡盾构机掘进效率和主要掘进参数的相关性进行定量分析,建立多元线性回归模型,分析泥水平衡盾构机掘进效率对各个掘进参数变化的敏感性。研究结果表明:地质为断裂带时,掘进效率与刀盘转速、盾构总推力、刀盘扭矩、泥水仓压力呈显著负相关,敏感程度大小依次是刀盘扭矩、盾构总推力、刀盘转速、泥水仓压力;地质为弱风化泥质粉砂岩时,泥水平衡盾构机掘进效率与盾构总推力、刀盘转速、刀盘扭矩呈显著正相关,敏感程度大小依次是盾构总推力、刀盘扭矩、刀盘转速;地质为弱风化泥质砂砾岩时,掘进效率与刀盘转速呈显著正相关,与刀盘扭矩呈显著负相关,敏感程度大小依次是刀盘扭矩、刀盘转速。In order to investigate the influence of slurry shield machine tunnelling parameters on tunnelling efficiency under different stratigraphical conditions,a quantitative analysis of the correlation between slurry shield machine tunnelling efficiency and major tunnelling parameters is carried out based on the field measurement data of the slurry shield machine tunnel project of the Pearl River Delta Water Resources Allocation Project B2 bid.Furthermore,a linear regression model is established to analyse the sensitivity of slurry shield machine tunnelling efficiency to changes in individual tunnelling parameters.The results show that the tunnelling efficiency is significantly and negatively correlated with cutter speed,total shield thrust,cutter torque,silo pressure in fault zone stratigraphy,with the sensitivity in descending order of cutter torque,total shield thrust,cutter speed and silo pressure.The tunnelling efficiency is clearly and positively correlated with cutter speed,cutter torque and is negatively correlated with total shield thrust in weakly weathered muddy siltstone,with the sensitivity in descending order of total shield thrust,cutter torque and cutter speed.In geological formations of weakly weathered muddy gravel,excavation efficiency is prominently and positively correlated with cutter speed and is negatively correlated with cutter torque,with the sensitivity in descending order of cutter torque,cutter speed.

关 键 词：泥水平衡盾构机 掘进参数 相关性分析 敏感性分析 引水隧洞 

分 类 号：U455.43[建筑科学—桥梁与隧道工程]