基于PFC3D花岗岩地层破岩效率影响规律研究  

Study on the Influencing Law of Rock-Breaking Efficiency in Granite Formations Based on PFC3D

作　　者：唐宇飞 吴宗汉 潘云贵 Yufei Tang;Zonghan Wu;Yungui Pan(School of Environment and Architecture,University of Shanghai for Science and Technology,Shanghai)

机构地区：[1]上海理工大学环境与建筑学院,上海

出　　处：《建模与仿真》2025年第1期167-176,共10页Modeling and Simulation

摘　　要：本文通过PFC3D离散元软件建立了三维双滚刀破岩模型,根据室内试验结果验证模型的准确性,并对不同围压、刀间距、贯入度和温度条件下花岗岩地层破岩效率开展了研究。结果表明,相同温度条件下,围压和刀间距对破岩效率有着抑制作用;随着贯入深度增加,刀具与岩石接触更加充分,同时岩层温度上升,破岩效率会逐渐提升。This study established a three-dimensional dual-disc cutter rock-breaking model using PFC3D discrete element software,validated the model’s accuracy based on laboratory test results,and investigated the rock-breaking efficiency of granite formations under different confining pressures,cutter spacing,penetration depths,and temperature conditions.The results indicate that under the same temperature conditions,confining pressure and cutter spacing have a suppressive effect on rock-breaking efficiency;as penetration depth increases,the contact between the cutter and the rock becomes more sufficient,and with the rise in rock layer temperature,the rock-breaking efficiency gradually increases.

关 键 词：全断面岩石掘进机 滚刀破岩 PFC3D 高温 

分 类 号：TD421.1[矿业工程—矿山机电]