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为提高盘形滚刀破岩性能与使用寿命,基于滚刀刀圈结构设计要求与原则,提出了一种滚刀刀圈结构地质适应性设计方法。以滚刀破岩能力、破岩能耗、轴承受载以及磨损性能为优化目标,建立滚刀刀圈结构多目标优化设计模型。采用模糊层次分析法计算不同地质条件下目标函数权重值,并通过遗传算法对模型进行求解。将滚刀刀圈结构地质适应性设计方法应用于某供水工程TBM项目滚刀优化设计,结果表明:不同地质条件下刀圈结构参数设计需要具有针对性,滚刀刀圈优化设计方法通过专家评判合理设置优化目标权重系数可实现刀圈结构地质适应性设计与选型,有效提高了滚刀破岩性能与使用寿命。
In order to improve the rock breaking performance and service life of disc cutter, based on design requirements and principles of hob cutter structure, a design method of geological adaptability of hob cutter was proposed. Taking hobbing rock breaking ability, breaking rock energy consumption, bearing load and wear performance as optimization objectives, a multi-objective optimization design model of hob cutter ring structure is established. The fuzzy analytic hierarchy process is used to calculate the weight of the objective function under different geological conditions and the genetic algorithm is used to solve the model. The design method of hobbing cutter geo-adaptability was applied to hobbing design of TBM project in a water supply project. The results show that the design of cutter structure parameters in different geological conditions need to be targeted. The optimal design method of hobbing cutter ring is judged by experts Reasonable setting of optimization target weight coefficient can realize the design and selection of geological structure of cutter ring structure, which effectively improves the rock breaking performance and service life.