北山1号TBM刀盘破岩振动影响参数分析  

Parameters analysis of Beishan No.1 TBM cutterhead vibration induced by rock breaking

作　　者：段志远 龚秋明[1] 王驹[2,3] 马洪素 黄流[1] 刘东鑫 彭治元 DUAN Zhiyuan;GONG Qiuming;WANG Ju;MA Hongsu;HUANG Liu;LIU Dongxin;PENG Zhiyuan(Key Laboratory of Urban Security and Disaster Engineering of Ministry of Education,Beijing University of Technology,Beijing 100124,China;Division of Environmental Engineering,Beijing Research Institute of Uranium Geology,Beijing 100029,China;CAEA Innovation Center for Geological Disposal of High-Level Radioactive Waste,Beijing 100029,China;China Railway 18th Bureau Group Tunnel Engineering Co.Ltd,Chongqing 401120,China)

机构地区：[1]北京工业大学城市防灾与减灾教育部重点实验室,北京100124 [2]核工业北京地质研究院,北京100029 [3]中国国家原子能机构高放废物地质处置创新中心,北京100029 [4]中铁十八局集团隧道工程有限公司,重庆401120

出　　处：《世界核地质科学》2024年第4期805-816,840,共13页World Nuclear Geoscience

基　　金：中国国家原子能机构高放废物处置创新中心重点基金项目(编号:CXJJ21102203)资助。

摘　　要：隧道掘进机在掘进过程中,刀盘破碎岩石会产生振动,刀盘振动对TBM机械与施工会造成负面影响。依托甘肃北山地下实验室斜坡道工程TBM施工段,在北山1号TBM上搭载振动监测系统,通过跟踪现场施工和开展掘进试验,收集研究区段的隧道设计工况信息、围岩信息、掘进参数与刀盘振动信息。开展不同隧道设计工况、围岩类别、掘进参数对刀盘破岩振动的影响分析。研究结果表明:1)隧道转弯段与直线段的TBM刀盘振动强度、主振频率具有一定差异,转弯段TBM刀盘振动强度更大、主要频率更高;2)不同围岩类别下,转弯段刀盘振动主振频率差异较大,而直线段差异较小;3)随着推力、转速的提高,刀盘的振动强度增大,但刀盘三轴振动主振频率不发生改变。During the tunnel boring machine(TBM)excavation process,the vibration generated by the cutterhead breaking rock will have a negative impact on the TBM machinery and construction.This study relied on the TBM construction section of the ramp in the Beishan Underground Research Laboratory in Gansu province.A vibration monitoring system was installed on the Beishan No.1 TBM to track on-site construction and conduct excavation experiments.Information on tunnel design,surrounding rock condition,excavation parameters,and cutterhead vibration in the research section was collected.An analysis was conducted on the impact of different tunnel routes,rock types,and excavation parameters on disc cutter rock-breaking vibration.The research results show that:1)there are certain differences in the vibration intensity and main vibration frequency of TBM cutterhead between tunnel curve sections and straight sections,higher vibration intensity and main frequency components occurs in curve sections;2)different types of surrounding rock result in significant differences in the main vibration frequency of cutterhead in curve sections,while the effect on straight sections is minor;3)with the increase of thrust and rotational speed,the vibration intensity of the disc cutter increases,but the main vibration frequency of the cutterhead’s three axes remains unchanged.

关 键 词：隧道掘进机(TBM) 北山地下实验室 北山1号TBM 刀盘 破岩振动 

分 类 号：TP75[自动化与计算机技术—检测技术与自动化装置]