Geological adaptability matching design of disc cutter using multicriteria decision making approaches

基于多准则决策的盘形滚刀地质适应性设计方法

Geological adaptability matching design of a disc cutter is the prerequisite of cutter head design for tunnel boring machines(TBMs)and plays an important role in improving the tunneling efficiency of TBMs.The main purpose of the cutter matching design is to evaluate the cutter performance and select the appropriate cutter size.In this paper,a novel evaluation method based on multicriteria decision making(MCDM)techniques was developed to help TBM designers in the process of determining the cutter size.The analytic hierarchy process(AHP)and matter element analysis were applied to obtaining the weights of the cutter evaluation criteria,and the fuzzy comprehensive evaluation and technique for order performance by similarity to ideal solution(TOPSIS)approaches were employed to determine the ranking of the cutters.A case application was offered to illustrate and validate the proposed method.The results of the project case demonstrate that this method is reasonable and feasible for disc cutter size selection in cutter head design.

盘形滚刀地质适应性设计是隧道掘进机(TBM)刀盘设计的重要环节,直接影响TBM的整体掘进效率。滚刀匹配设计的关键是通过滚刀性能评价选择适宜的滚刀尺寸。本文提出一种基于多准则决策的新型评价方法用以确定滚刀尺寸,以不同型号滚刀为设计对象,建立滚刀性能评价递阶层次模型,采用层次分析和物元理论计算滚刀性能指标权重值,并通过模糊综合评价法和模糊TOPSIS决策法对不同型号滚刀性能进行综合评判与决策。将滚刀地质适应性设计方法应用于某水利工程TBM刀盘正面滚刀设计,结果表明该方法有效可靠,可为刀盘设计过程中滚刀性能评价和匹配设计提供一定理论依据。