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DDA模拟TBM破岩机理

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摘要 TBM是现代隧道开挖的主要工具,掘进开挖在许多隧道中己得到了成功应用,目前,在国内许多施工过程中,由于地质条件极其复杂,岩体坚硬并且岩性变化大,导致TBM刀圈出现卷刀、崩口、断裂、刀圈移位磨蚀度偏大及空磨刀等现象,严重影响了挖掘进度和挖掘效益,针对这些问题,本文阐述TBM破岩的一般机理,在此基础上用DDA简单模拟岩体在各种结构面组合下有荷载作用的破坏,更直观反映破岩过程。
出处 《工程地质计算机应用》 2012年第3期21-25,共5页 Engineering Geology Computer Application
关键词 盾构机 TBM DDA
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