考虑膨胀岩流变特性的巷道支护探讨

Probe into the Support of Tunnels with Liquidated Expandable Rocks

对膨胀岩巷道进行支护设计时,应考虑其流变特性.本文用伯格模型描述膨胀岩的流变特性.并以喷锚支护为例,探讨了根据蠕变曲线确定巷道的支护时间和支护刚度,提出了针对膨胀岩特点的巷道支护思想.

Liquidation characteristic should be taken into consideration while designing the support for expandable rock tunnels. This article presents the liquidation characteristic with Berg model,and setting injecting ankle support as an example, probes into the support time and rigidness according to creeping curve, puts forward an idea of tunnel support with respet of the characteristic of expandable rocks.