论文部分内容阅读
2008年5月12日14时28分四川汶川发生M8.0级大地震,冶勒大坝距震中汶川约258公里,具有强烈震感,大坝的强震监测台阵对此次大地震有较完整的有效数据记录。针对这些实测地震记录,采用时程分析方法和频谱分析方法分析大坝的地震反应特征和规律,并结合其它监测资料,考察了此次大地震对冶勒大坝所产生的影响,认为冶勒大坝在震后运行性态稳定,情况基本正常。此外,将此次地震记录与以往监测的地震记录进行对比分析,获得了冶勒大坝与一般土石坝不同的地震动力反应规律,这种特殊规律与冶勒大坝特殊的地质条件密切相关。
At 14:28 on May 12, 2008, an M8 magnitude earthquake hit Wenchuan, Sichuan Province. The Yele Dam was about 258 km away from the Wenchuan epicenter with a strong sense of earthquake. The strong earthquake monitoring array of the dam was more effective than this earthquake Complete valid data record. According to these measured seismograms, the time-history analysis method and the spectrum analysis method are used to analyze the characteristics and laws of the earthquake response of the dam. Combined with other monitoring data, the impact of this earthquake on the Yele Dam is investigated. After the earthquake, the dam was running in a stable condition and the situation was basically normal. In addition, by comparing the seismic record with the previous seismic records, the different dynamic responses of the Yele dam to the general earth-rock dam are obtained. This particular law is closely related to the special geological conditions of the Yele dam.