盾构机刀盘的地质适应性设计研究  

On the Geological Adaptability of Shield Cutterhead Designs

作　　者：王旭[1] 张海东[1] 边野[2] 李天明[2] 

机构地区：[1]辽宁省建筑设计研究院岩土工程公司,沈阳110005 [2]北方重工集团有限公司盾构机公司,沈阳110141

出　　处：《现代隧道技术》2013年第3期108-114,共7页Modern Tunnelling Technology

基　　金：国家国际科技合作项目(2011DFB70230);国家重点基础研究发展规划(973)项目(2010CB736007)

摘　　要：为了提高盾构机的地质适应性,减少盾构施工过程中因地质因素造成的工程问题,盾构机刀盘必须根据地质条件进行地质适应性设计。文章基于多个盾构隧道施工实践,分析了国内外盾构隧道施工中出现的掘进困难、刀盘刀具快速磨损、结泥饼和开挖面失稳等工程问题,发现刀盘对岩土类型、岩土物理力学性质和水文地质条件不适应是产生这些工程问题的根本原因。基于岩土体与刀盘相互作用的机理和盾构施工经验,文章分别总结了刀盘结构、刀具选型布置和刀盘碴土改良装置在地质适应性方面的设计经验。To improve the geological adaptability of shield machines and reduce the engineering problems caused by geological factors during shield excavation, the cutterhead of a shield machine should be designed according to the geological conditions. Based on multiple shield tunneling cases, this paper analyzes the problems encountered in do- mestic and overseas shield construction, such as excavating difficulties, accelerated wear of the cutterhead and cut- ters, mud cakes, and the instability of working faces. It was found that the main causes for these problems were the in- elasticity of the cutterhead to the types of rock soil, physical and mechanical issues, and hydrogeological conditions. Based on the interaction mechanism between the cutterhead and rock-soil body and shield driving construction expe- rience, this paper summarizes the design of cutterhead structures, as well as the selection and layout of cutters and equipment for muck conditioning regarding adaptability to geological conditions.

关 键 词：盾构机 刀盘设计 地质适应性 

分 类 号：U455.39[建筑科学—桥梁与隧道工程]