| 1. | The new concepts , such as the active supporting coefficient , the coefficient of strength utilization , the coefficient of pretensioned bolt length , the effective compressive zone , the coefficient of pretensioned stress diffusion , the framework and mesh structure of the effective compressive zone , and the critical supporting stiffness were put forward
提出锚杆主动支护系数、强度利用系数、预应力长度系数、有效压应力区、预应力扩散系数、有效压应力区骨架网状结构及临界支护刚度等概念。 |
