摘要
为了解决类矩形盾构异形断面的全断面切削问题,通过计算机三维设计、有限元计算验证大刀盘结构的强度,并借助CAD仿真双刀盘的旋转干涉模拟其同步控制的可行性,研究出了一种能够满足类矩形盾构全断面切削要求的刀盘技术。文章重点阐述了双刀盘的结构设计及强度验算,描述了偏心刀盘结构特点,以及2个X型辐条式圆形大刀盘加1个偏心多轴驱动仿形刀盘的组合切削技术。此项技术已应用于宁波轨道交通3号线1期工程的类矩形盾构施工中,工程实践将对异形断面的盾构机关键部件技术的提升有指导意义。
To solve the problem of full-face cutting of quasi-rectangular shield,this paper verified the strength of its large cutterhead through 3D design and FEM calculation,discussed the feasibility of its synchronous control by means of simulation based on rotation interference of CAD dual cutterhead,and proposed the cutterhead technique meeting full-face cutting by qusi-rectangular shield.In this paper it focuses on the structural design and strength checking of dual cutterhead,the features of eccentric cutterhead and the combined cutting technique(i.e.two Xshaped spoke-type cutterheads + one multi-axis eccentric cutterhead) which will be applied to the quasirectangular shield tunnelling of phase 1 of Ningbo Metro line 3.
出处
《现代隧道技术》
EI
CSCD
北大核心
2016年第S1期20-28,共9页
Modern Tunnelling Technology
基金
上海市科学技术委员会资助项目(No.14DZ1207900)
宁波市重大科技攻关资助项目(No.2015C110017)
关键词
类矩形盾构
异形断面
全断面切削
双刀盘
偏心刀盘
Quasi-rectangular shield
Irregular section
Full-face cutting
Dual cutterhead
Eccentric cutterhead
