摘要
大石门水利枢纽工程坝址区地震烈度高(地基岩动峰值加速度为0.52g,抗震设计烈度为Ⅸ度),坝址处河谷狭窄,岸坡陡峭,地质条件复杂,拦河坝高130 m,坝型选择至关重要。结合地形地质条件、工期及投资等多方面综合比选,最终确定推荐坝型为沥青混凝土心墙坝。
The earthquake intensity in the dam area of Dashimen project is higher （ PGA of the foundation rock is 0. 52g and the design aseismic intensity is degrees） . The valley at dam site is narrow, banks are steep and the geological conditions are complicated. The dam is 130 m high. Therefore, the dam type selection is critical. Through the general comparison with consideration of the topographic and geological conditions, construction period and investment amount, the dam with asphalt concrete core is finally recommended.
出处
《西北水电》
2017年第6期52-59,共8页
Northwest Hydropower
关键词
地震烈度
陡岸坡
沥青混凝土心墙坝
坝型比选
大石门水利枢纽
earthquake intensity
steep bank slope
dam with asphalt concrete core
dam type comparison and selection
Dashimen project
