盾构刀盘结构设计与分析

Design and analysis of shield cutterhead structure

盾构是目前土质或以土质为主隧道(洞)工程施工的优选装备,其刀盘结构是实现掌子面稳定、进行隧洞开挖掘进的关键部件。目前盾构刀盘结构主要是辐条式、辐板式和辐条辐板复合结构;大中型盾构刀盘一般采用中间支承形式;为方便刀具更换作业,大型盾构机刀盘已设计出常压刀具更换臂(辐条)。此文还对刀盘上刀具布置的刀间距、布置形式等进行了总结。文章内容可为今后盾构刀盘结构设计和应用提供较好借鉴。

Shield machine is the preferred equipment for tunnel construction with soil or soil as the main part.Shield cutterhead structure plays the key role in tunnel face stability and tunnel excavation.At pres⁃ent,the structure of shield cutterhead is mainly spoke type,spoke plate type and their composite struc⁃ture.The cutterhead of large and medium-sized shield machine generally adopts the form of intermediate support.In order to facilitate the tool replacement operation,the atmospheric tool changing arm(spoke)is designed for the cutterhead of large-scale shield machine.This paper additionally summarizes the cutter spacing and layout form of the cutterhead.The content of this paper can provide a good reference for the design and application of shield cutterhead structure in the future.