论文部分内容阅读
提出了双场点地震危险性分析方法,用以计算在相同地震构造环境中,相同地震作用下的相邻两个工程场点同时超越其给定地震动参数的概率.该方法是确定系统的危险段落、场点遭受的附加地震危险的有效工具.基于汶川MS8.0地震后大渡河干流及邻近地区的地震环境,以大渡河干流梯级水电站系统为例,确定了大渡河干流梯级水电站各个河段的地震危险性.其中危险性最高的3个河段是:龚嘴—铜街子河段、沙坪—龚嘴河段和大岗山—龙头石河段.
This paper presents a method to analyze the risk of double-site seismic hazard, which is used to calculate the probability that two adjacent engineering sites in the same earthquake tectonic environment will surpass the given ground motion parameters under the same earthquake simultaneously. This method is to determine the Dangerous paragraphs, site-point effective additional seismic risk tools.According to the Wenchuan earthquake MS8.0 earthquake and the surrounding areas of the main dam and the surrounding area to Dadu River cascade hydropower station system, for example, to determine the Dadu River cascade hydropower stations in various rivers Seismic hazard of the Segment, of which the three most dangerous are the Gongzui-Tongjiezi Reach, the Shaping-Gongzui Reach and the Dagangshan-Leader Shuihe Reach.