TBM盘形滚刀磨损与滚刀滑动距离关系研究

发布时间：2018-01-16 00:25

本文关键词：TBM盘形滚刀磨损与滚刀滑动距离关系研究　出处：《隧道建设》2017年03期 　论文类型：期刊论文

【摘要】：盘形滚刀磨损是制约TBM掘进效率和施工成本的重要因素。为研究滚刀滑动对滚刀磨损的影响,提出了"一次侵入位移"的概念,应用质点的运动合成原理推导出了考虑滚刀刀刃宽度影响的一次侵入位移及滚刀滑动距离的计算公式,研究一次侵入位移的影响因素以及滚刀磨损与滑动距离的关系,基于上述研究分析秦岭隧道TB880E型TBM滚刀滑动磨损系数分布规律。研究表明:1)滚刀破岩过程中,刀刃相对开挖面岩石除滚动外,还产生相对滑动;2)中心区域滚刀侧向位移分量最大,滚刀磨损以剪切破岩和滑动磨损为主,中心区域以外滚刀沿掘进方向位移分量最大,滚刀磨损以碾压破岩和滚动磨损为主;3)应进一步综合考虑滚刀破岩量、滑动距离以及二次磨损等因素对滚刀磨损的影响。
[Abstract]:Disc hob wear is an important factor that restricts the efficiency and construction cost of TBM driving. In order to study the influence of hob sliding on hob wear, the concept of "once intrusive displacement" is put forward. Based on the principle of particle motion synthesis, a formula for calculating the invading displacement and sliding distance of hob considering the influence of the width of hob blade is derived. The influence factors of primary intrusive displacement and the relationship between hob wear and sliding distance are studied. Based on the above research, the distribution of sliding wear coefficient of TB880E TBM hob in Qinling Tunnel is analyzed. The results show that in the rock breaking process of the hob, the relative cutting face of the blade is not only rolling. Relative slippage is also produced; 2) the lateral displacement component of the hob is the largest in the center region, the main wear is shearing rock breaking and sliding wear, and the displacement component of the hob outside the center region is the largest along the heading direction. The main wear of hob is rock crushing and rolling wear. 3) the influence of rock breaking, sliding distance and secondary wear of hob on the wear of hob should be considered synthetically.
【作者单位】：广州市盾建地下工程有限公司;
【分类号】：U455.3
【正文快照】： 0引言我国是应用TBM施工铁路隧道和输水隧洞最多的国家,如著名的西康铁路秦岭隧道、四川锦屏引水隧洞等[1]。近年来,主要应用于长距离山岭岩石隧道施工的TBM也开始在城市地铁隧道施工中得到应用,如:2011年重庆轨道交通铜锣山隧道首次应用复合型TBM进行施工,这也是国内地铁领域

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