不同岩石特性下TBM滚刀刀圈磨损性能  

Wear characteristics of TBM disc-cutter ring under different rock characteristics

作　　者：夏毅敏[1] 周明[1] 毛晴松 朱宗铭[1,3] 张旭辉[1] XIA Yimin ZHOU Ming MAO Qingsong ZHU Zongming ZHANG Xuhui(School of Mechanical and Electrical Engineering, Central South University, Changsha 410083, China China Railway Engineering Equipment Group Co. Ltd. , Zhengzhou 450016, China Mechanical and Electrical Engineering Dept. , Changsha University, Changsha 410003, China)

机构地区：[1]中南大学机电工程学院,湖南长沙410083 [2]中铁工程装备集团有限公司,河南郑州450016 [3]长沙学院机电工程系,湖南长沙410003

出　　处：《哈尔滨工程大学学报》2017年第9期1456-1460,共5页Journal of Harbin Engineering University

基　　金：国家重点基础研究发展计划项目(2013CB035401);国家高技术研究发展计划项目(2012AA041803);国家自然科学基金项目(51475478);中南大学中央高校基本科研业务费专项资金项目(2017zzts646)

摘　　要：为了研究岩石特性对TBM滚刀刀圈磨损的影响,本文基于TBM滚刀性能测试试验台,利用与实际TBM滚刀刀圈性能相同的滚刀刀圈试样,开展了滚刀刀圈试样与5种TBM工程典型岩石的对摩实验。结果表明:随着对摩岩石抗压强度的升高,刀圈试样的磨损量呈递增趋势,与红砂岩对摩时刀圈试样的磨损量最小,为0.2 g;与片麻岩对摩时刀圈试样的磨损量最大,为35.18 g;与红砂岩、锈石、花岗岩、汨罗麻岩四种岩石对摩时,刀圈试样的磨损去除机制均以微观切削去除为主,只是微观切削去除的程度不同;与片麻岩对摩时,刀圈试样所受载荷和振动较大,刀磨损机制转变为以微观切削和脆性断裂去除机制为主,导致刀圈试样磨损量剧增。本研究成果可为不同岩石特性下TBM滚刀刀圈性能选型提供借鉴和参考。To investigate the effect of rock property on the wear behavior of TBM cutter rings, friction experiments were performed on a TBM hob performance test bench with five types of rock common in TBM works. The hob-cutter ring specimen used in the experiment is the same as the actual TBM hob cutter. Results show that the wear volume of the cutter ring specimen tends to increase with increasing rock compressive strength. The specimen exhibited the lowest wear volume of 0. 2 g when facing red sandstone and the highest wear volume of 35.18g when facing gneiss. Microcosmic cutting removal is the dominant removal wear mechanism in facing red sandstone, rusted stone, granite, and Miluo gneiss. However, the degree of microcosmic cutting removal is different among stones. The load and vibration of the cutter ring specimen are large when wearing gneiss, and the main wear mechanism of the cutter ring specimen changes into microcosmic cutting and brittle fracture removal. These mechanisms drastically increase the wear of the cutter ring specimen. The results of this study can provide reference for the selection of TBM disc cutter ring in different rock characteristics.

关 键 词：岩石特性 滚刀刀圈 磨损量 磨损去除机制 对摩实验 磨损性能 微观切削 脆性断裂 

分 类 号：U455.3[建筑科学—桥梁与隧道工程]