盾构掘进刀具磨损测量模拟试验研究  

Simulation Test Study on Tool Wear Measurement of Shield Tunneling

作　　者：张初可 ZHANG Chuke(China Railway 18th Bureau Group Third Engineering Co.,Ltd.,Zhuozhou,Hebei 072750,China)

机构地区：[1]中铁十八局集团第三工程有限公司,河北涿州072750

出　　处：《施工技术(中英文)》2025年第7期1-6,共6页Construction Technology

基　　金：中国铁建股份有限公司2024年度科技研究开发计划(2024-C1)。

摘　　要：盾构掘进过程中刀具磨损是影响工程成本和工期的关键问题之一,而盾构机的运行参数及土体性质是影响刀具磨损的重要因素。针对这一问题,设计并构建了一种盾构掘进过程试验模拟装置,在试验室条件下模拟隧道掘进过程并研究刀具磨损机制,该装置具有水平操作、低转速运行、刀具与土壤持续接触、实时测量扭矩等功能。试验采用南昌市地铁4号线的土样,通过设置不同的掘进参数,如刀盘转速和贯入率,系统研究了刀具磨损行为。研究结果表明,将刀盘转速从35r/min降低至10r/min,刀具平均磨损减少了63%;掘进时间从80min缩短至10min,刀具磨损减少了58%。此外,随着土样含水量从0%增加到10%,刀具磨损显著增加,而当含水量继续增加至25%时,刀具磨损呈下降趋势。Tool wear is one of the key problems affecting engineering cost and construction period during shield tunneling,and the operating parameters of the shield machine and soil properties are important factors affecting tool wear.Aiming at this problem,a test simulation device for the shield tunneling process is designed and constructed to simulate the tunneling process and study the tool wear mechanism under laboratory conditions.The device has the functions of horizontal operation,low-speed operation,continuous contact between tool and soil,real-time measurement of torque,etc.In the experiment,the soil samples of Nanchang Metro Line 4 were used to systematically study the tool wear behavior by setting different tunneling parameters,such as cutter head speed and penetration rate.The results indicate that the average wear of the tool is reduced by 63%when reducing the cutter speed from 35r/min to 10r/min.The excavation duration is shortened from 80minutes to 10minutes,and the tool wear is reduced by 58%.In addition,with the increase of soil moisture content from 0%to 10%,the tool wear increases significantly.However,when the moisture content continues to increase to 25%,the tool wear shows a downward trend.

关 键 词：隧道 盾构 掘进 刀具磨损 运行参数 试验 

分 类 号：U445.4[建筑科学—桥梁与隧道工程]