The effect of earth pressure to rock breaking is studied. The principle of rock breaking mechanism by TBM is discussed and the action of rock breaking angle is emphasized.
通过地应力对破岩影响的分析，对TBM破岩机理进行了研究，着重考虑了岩石破裂角对破岩效果的影响。
The effect of basic rock thickness, mining height and advancing speed on roof breaking is analyzed.
并进一步分析了基岩厚度、采高、推进速度对顶板破断的影响。
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