在此基础上，本文首次采用弹-粘塑性边界元法并结合锚喷支护考虑了隧洞掘进面时空效应作用问题，从而拓展了边界单元法的工程应用。
Based on the above work a space-time effect on the excavation face of tunnel with the function of bolting support is considered, thus the engineering application of BEM is developed.
对应变软化-硬化效应提出一种新的起因于粘弹变形内禀滞后效应的理论解释，并定名为粘弹软化-强化效应。
A new theoretical interpretation for the strain softening and hardening effects, which were caused by the interior hysteresis nature of viscoelastic deformation.
在无初始应力存在并略去热、磁耦合效应时，所得结果变成经典的粘弹波结果。
The results obtained are in complete agreement with the corresponding classical viscoelastic problems when the initial stress, thermal and magnetic couplings are absent.
通过对比分析表明，三维弹粘塑性模型可以较好地描述软岩的应变速率效应。
Through comparing and analysis, it is found that 3d EVP model is effective to describe the strain rate effect of soft rock.
通过对比分析表明，三维弹粘塑性模型可以较好地描述软岩的应变速率效应。
Through comparing and analysis, it is found that 3d EVP model is effective to describe the strain rate effect of soft rock.
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