With a stronger steel casing and backup shock-resistant triggering mechanisms, the Perseus can smash through several metres of reinforced concrete and detonate only after it has gone into a bunker.
Based on the theory of the viscoelastic rheological model, the coupled mechanical model of the soft rocks, the concrete sheath and the casing is developed.
以黏弹性流变模型理论为基础，建立软岩层、水泥环和套管流变耦合的力学模型。
3
Therefore, extensive angle monitoring is adopted to observe the structure response of steel casing, reinforcing steel bar and concrete.