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本文首先介绍用弹塑性理论研究无支护隧洞洞壁围岩的稳定性。当判别为不稳定时,隧洞需立即支护。然后,用粘弹性理论研究支护和围岩联合作用时的稳定性。并介绍用径向位移与位移速度的流变数学模式研究围岩的稳定性。
This paper first introduces the elasto-plastic theory to study the stability of surrounding rock in unsupported tunnel walls. When it is judged as unstable, the tunnel needs immediate support. Then, the viscoelasticity theory was used to study the stability of supporting and surrounding rocks. The rheological model of the radial displacement and displacement velocity is used to study the stability of surrounding rock.