TBM的滚刀布置优化设计研究

Optimal Layout Design of Cutters on Tunnel Boring Machine

滚刀在刀盘上的布置问题是全断面岩石掘进机(TBM)设计的核心内容.基于刀盘的受力需满足空间力系平衡的原则,建立了非线性多目标滚刀布置模型.提出了利用协同进化算法优化滚刀布置的方法.以引洮隧道掘进机滚刀布置实例对所建立的模型和所采用的优化算法进行了验证.在多种岩石边界条件下,与原TBM滚刀布置方案进行了对比分析.结果表明,采用本文方法获取的滚刀布置方案具有更小的倾覆力矩和不平衡力,证明了该模型及所用的优化算法是可行的、有效的.

The layout design of cutters on cutter head of a full-face rock tunnel boring machine（TBM）is a key problem for the design of rock TBM.The principle of equilibrium of spatial forces should be satisfied for the cutter head under the action of forces,thus developing a nonlinear multiobjective layout model of cutters.Then,a co-evolutionary algorithm is proposed to optimize the layout of cutters.Exemplifying the TBM used in the water tunnel project for Taohe River,its layout of cutters was compared with that based on the model developed and the algorithm proposed for verification.The results showed that under the conditions that the rock boundaries are variable the model and algorithm as above are both feasible and effective,by which the layout of cutters is available to get smaller upsetting moment and unbalanced forces.