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通过对施甸 5 9级地震震害现象的机理分析 ,清晰地发现竖向地震作用起重要破坏作用 ,与获取的强地面运动峰值加速度竖向值相吻合。映证了在历次地震中许多地震工作者常发现极震区竖向地震力起重要破坏作用的原因。
Through the analysis of the mechanism of the Shitian M 9 9 earthquake damage, it is clearly found that the vertical earthquake plays an important role in destroying the earthquake, which agrees well with the obtained vertical peak acceleration value of the strong ground motion. This shows that many earthquake workers in many previous earthquakes often find the cause of the major destructive effect of the vertical seismic force in the seismic zone.