求翻译：模拟隧道在无支护和锚喷支护两种情况下，逐步加载，模拟不同组合的应力作用下隧道围岩变形情况、失稳过程，试验过程中观察和记录隧道围岩裂隙发育情况、应力变化和围岩周边位移变化等。是什么意思？

Simulation of the tunnel without support and anchoring and shotcreting both cases, the gradual loading, under stress of the simulation of different combinations of tunnel surrounding rock deformation, buckling process, observe and record the tunnel surrounding rock fissures in the testing process, s

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Simulates the tunnel in not to have the supports and protections and the anchor spurts supports and protects in two kind of situations, loads gradually, under simulation different combination stress function tunnel adjacent formation distortion situation, jitter process, in testing observation and r

Simulation of tunnel in the absence of support and bolt-spray supports two kinds of cases, progressive loading, simulating different combinations of tunnel surrounding rock deformation under stress conditions, instability, the testing process in the observation and documentation of fractured surroun

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