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根据龙羊峡重力拱坝的运行特点,选择拱圈、拱冠梁的地震反应和坝基坝肩的不均匀地震输入三个主要观测目标,采用本科院组织研制的EDS型强震监测分析系统,建立了龙羊峡大坝强震反应台阵。根据水科院多年对拱坝的抗震研究成果和对龙羊峡拱坝的试验研究,制定了龙羊峡拱坝强震安全监测标准。在1990年底安装强震监测系统后的7年之中,台阵运行基本正常,先后取得强震加速度记录100多条,为龙羊峡大坝进行强震安全监测和拱坝抗震研究提供了可靠的依据。
According to the operation characteristics of Longyangxia gravity arch dam, the three main observation targets of arch ring, arch crown beam and non-uniform seismic input of dam abutment are selected. The EDS seismic monitoring system is developed by the Chinese Academy of Engineering. Longyangxia dam strong earthquake response array was established. According to the ASTRI earthquake resistant arch dam for many years and the research on the Longyangxia arch dam, developed a Longyangxia dam strong earthquake safety monitoring standards. During the seven years after the strong earthquake monitoring system was installed at the end of 1990, the array operation was basically normal and more than 100 strong acceleration records were obtained, providing a reliable basis for the research on strong earthquake safety monitoring and arch dam seismic research of Longyangxia Dam The basis.