辽宁核电站温坨子厂址设计墓准地面运动SL_2和SL_1的确定

On Determination of SL_2 and SL_1 for the Wentuozi Site of the Liaoning Nuclear Power Plant

本文在综合厂址及区域地震地质资料的基础上，采用地震构造法、综合概率法和最大历史地震法分别计算了辽宁核电站温坨子厂址的极限安全地震动（ＳＬ２），计算结果分别是１７７ｃｍ／ｓ２，１７５ｃｍ／ｓ２和８９ｃｍ／ｓ２，取其中的最大值１７７ｃｍ／ｓ２。为安全起见，建议将ＳＬ２取值２００ｃｍ／ｓ２。运行安全地震动（ＳＬ１）按５０年０．１超越概率和ＳＬ２／２选取，采用两者的较大值，确定为１００ｃｍ／ｓ２。

Based on synthetic analysis of seismogeological data the limiting safe seismic motion (SL2) for the Wentuozi site has been obtained by the seismo-tectonic method, the probability method and the maximum historical earthquake method. The calculating results are 177 cm / s2,175cm / s2 and 89cm / s2 respectively. We take the maximum value among them as SL2(177cm / s2). For safety purpose 200 cm / s2 can be utilized as SL2 for Wentuozi site.The operating safe seismic motion (SL1) which can obtain from selecting larger between the probabilistic calculating result and the half of SL2 is 100cm / s2.