非线性统一强度理论对TBM滚刀间距的影响
首发时间:2010-03-23
摘要:TBM相邻滚刀间距从理论上分析主要取决于岩石种类、岩石单轴抗压强度、岩石节理分布等因素,而在设计中为了便于操作,一般采用岩石种类为主要依据,岩石单轴抗压强度为参考的方法来确定滚刀间距,显然,这种依据是不完善的。本文运用岩石的非线性统一强度准则将岩体的断层、层理和节理等对相邻滚刀间距的影响定量的描述出来,采用了一个常用的多轴强度指标来描述相邻滚刀在刀间距不足、最优刀间距和刀间距过大状态下工作时滚刀下方岩体的破坏状况。
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The Influence of Nonlinear Unified Strength Theory
Abstract:Unconfined compressive strength, Species and Bedding of Rock are the important factor which must be considered in TBM cutter space, It is not perfect to select the parameter system whose key parameter are Species and Unconfined compressive strength of Rock. In addition to Species and Unconfined compressive strength of Rock, there is bedding of Rock is taken into account in TBM cutter space.
Keywords: TBM cutter space nonlinear unified strength theory
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No.4106151917412693****
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