CAJ | 학술논문

TBM破岩用的盘形滚刀消耗量大且价格昂贵，不合理的换刀会对工期、施工成本以及 TBM本身造成不利影响，研究盘形滚刀的磨损特性以及预测滚刀磨损具有重要意义。滚刀破岩时其受力情况及滑移量对滚刀磨损机理及磨损量的预测至关重要，本文利用软件 ABAQUS 建立了盘形滚刀破岩过程的有限元模型，研究了滚刀滑移现象以及滚刀受力分布情况。定量地分析了滚刀贯入度以及滚刀与岩石间的摩擦系数对滚刀滑移的影响。结果表明：滚刀破岩时的滑移量与贯入度成正比，与摩擦系数成反比。所得结果可以为滚刀磨损量的预测提供参考。
TBM파암용적반형곤도소모량대차개격앙귀，불합리적환도회대공기、시공성본이급 TBM본신조성불리영향，연구반형곤도적마손특성이급예측곤도마손구유중요의의。곤도파암시기수력정황급활이량대곤도마손궤리급마손량적예측지관중요，본문이용연건 ABAQUS 건립료반형곤도파암과정적유한원모형，연구료곤도활이현상이급곤도수력분포정황。정량지분석료곤도관입도이급곤도여암석간적마찰계수대곤도활이적영향。결과표명：곤도파암시적활이량여관입도성정비，여마찰계수성반비。소득결과가이위곤도마손량적예측제공삼고。
With large consumption and high cost of disc cutter which used for TBM rock breaking,the irrational cutter changing will cause an adverse impact on duration,construction cost and TBM.So it is of great importance to study disc cutter wear characteristics and predict cutter wear,and the force of disc cutter and sliding abrasion are vital to the predic-tions of cutter wear mechanism and its abrasion.A finite element model is built to simulate the process of rock breaking by ABAQUS in this paper.Cutter sliding and the force distribution of cutter are obtained and the influence of cutter penetration and friction coefficient to cutter sliding are also studied based on the established model numerically.The results indicate that sliding abrasion is proportional to cutter penetration and inversely proportional to friction coefficient.The results may be utilized to the abrasion prediction of TBMdisc cutter.