摘要
0．3g@安全停堆地震（SSE）对AP1000核岛稳定性起控制作用。本文针对基岩场地核岛的地震抗滑移稳定性进行了系列研究，包括基底摩擦系数变化以及是否考虑被动土压力对于核岛滑移稳定性影响。研究发现，当摩擦系数取0．7时，仅靠静止土压力即可保证核岛的稳定，当摩擦系数取0．55时，不考虑被动土压力时核岛已不能够保持稳定。当墙体向土体方向偏移后会产生被动土压力，而附加的被动土压力才能使核岛结构保持稳定。
The Safe Shutdown Earthquake of 0.3g is the most critical load in AP1000 nuclear island stability analysis. A series of analysis was done to make research of seismic sliding stability of nuclear is- land in the hard rock site. The research was made for friction factor changes. The effect of passive pressure was also studied in stability analysis. According to the research, when the friction factor is 0.7, the nuclear island could keep stable only with static pressure, and when the friction factor is 0.55, the nuclear island could not keep stable without passive pressure. However, the nuclear island moving will lead to the passive pressure. Only the additional passive pressure would keep the stable nuclear island .
出处
《核电工程与技术》
2014年第1期31-34,共4页
Nuclear Power Engineering and Technology
