盾构刀盘系统的设计适应性研究与评价  

Study and Evaluation on the Design Adaptability of Shield Cutterhead System

作　　者：孙剑萍 汤兆平 SUN Jianping;TANG Zhaoping(School of Transportation and Logistics,East China Jiaotong University,Nanchang 330013)

机构地区：[1]华东交通大学交通运输与物流学院,南昌330013

出　　处：《现代隧道技术》2020年第4期27-36,共10页Modern Tunnelling Technology

基　　金：国家自然科学基金项目(51465017,51965017)。

摘　　要：盾构施工地质条件错综复杂,不同地层中的掘进效果差别巨大。针对某一特定工程定制的盾构及设计方案,不可能完美契合于其它工程,盾构刀盘系统的设计适应性及其评价问题亟待解决。文章分析了刀盘系统设计适应性的影响机理,以现有设计相对于目标设计在适应性上所拥有品质的隶属匹配度作为评价模型的初始数据,提出基于改进TOPSIS的分析模型与评价方法。以现有设计为例,对其应用于某城市的地铁施工进行可适应性分析与评价。结果表明:该盾构刀盘系统17项设计任务的适应性的影响力均为一般,9项指标适应性强弱依次为,工程施工适应性>掘进参数适应性>技术适应性>开挖面稳定适应性>环保适应性>施工安全适应性>经济适应性>地质条件适应性>耐用适应性。该模型与方法可有效评价盾构刀盘系统的设计适应性,从而为一个项目完成后的盾构设备再利用于其它工程的改造和维修决策提供依据,有效提高刀盘系统设计适应性及市场竞争力。The shield construction effects in different strata are greatly different because of complex geological conditions.The customized shield machine and design scheme for a specific project can not perfectly fit into other projects,and so the problems of evaluation of design adaptability of shield cutterhhead system need to be solved ur⁃gently.In this paper,the influence mechanism of design adaptability of shield cutterhead system is analyzed,and an analysis model and an evaluation method for design adaptability of shield cutterhead system are proposed based on improved TOPSIS method by taking the quality membership matching degree between current design and target design as the initial data of the evaluation model.Based on the current design of a cutterhead system,its design adaptability is analyzed and evaluated for its application to metro construction in certain city.It is concluded that the adaptability of the 17 design items of the shield cutterhead system is general,and the adaptability sequences of the 9 evaluation indexes in descending order are adaptability of engineering construction,adaptability of tunnelling parameters,tech⁃nical adaptability,adaptability of excavation face stability,adaptability of environmental protection,adaptability of construction safety,adaptability of economy,adaptability of geological conditions and adaptability of durability.The proposed model and method can effectively evaluate the design adaptability of cutterhead system,provide scientific basis for decision making of rebuild and maintenance when the shield machine is reused in other projects,and im⁃prove the design adaptability and market competitiveness of cutterhead system.

关 键 词：盾构 刀盘系统 设计的可适应性 隶属匹配度 目标设计 改进TOPSIS法 

分 类 号：U455[建筑科学—桥梁与隧道工程]