本工作通过事件树逻辑方法对由于瞬变初因事件引起的堆芯熔化事故序列进行分析。在确定了瞬变初因事件T_1—T_(13)的具体内容之后,可根据电站安全系统对瞬变初因事件的响应情况,建立起电站的瞬变事件树。事件树中的每一个题头事件说明完成该 In this work, we analyze the sequence of core melting accidents caused by transient initial events through the event tree logic method. After the specific content of the transient initial cause T_1-T_ (13) is determined, the transient event tree of the power station can be established according to the response of the station safety system to the transient initial events. Each head event in the event tree states that this is done