乌拉泊水库抗震稳定计算方法对比分析  

Comparison and Analysis on Computing Methods for Aseismic Stability of Wulabo Reservoir

作　　者：骆秀萍 易平 LUO Xiuping;YI Ping(Investigation and Design Institute(Group)Co.,Ltd.of Xinjiang Production and Construction Corps,Urumqi 830002,China)

机构地区：[1]新疆兵团勘测设计院(集团)有限责任公司,乌鲁木齐830002

出　　处：《西北水电》2018年第3期42-44,共3页Northwest Hydropower

摘　　要：为确保高烈度地区大坝抗震安全,结合乌拉泊水库抗震设计计算,采用瑞典圆弧法和应力分析法对抗震计算进行了对比分析。结果显示,应力稳定分析得到的安全系数与瑞典圆弧法计算结果相比略高,危险滑弧略浅,能更客观地反映滑弧面上的应力状态,同时还可以考虑不同地震输入的影响。因此,应力稳定分析法对高设防烈度坝体抗震计算更具有适用性。To secure safety of dam in high earthquake intensity and in combination of computation of aseismic design of Wulabo reservoir,both Swedish arc method and stress analysis method are applied to compare and analyze the aseismic computation.The study demonstrates that the safety factor by the stress stability analysis is a little higher than that by Swedish arc method.Its hazard sliding arc is lower and more objectively reflect stress on the sliding arc plane.Meanwhile,impacts by different earthquake inputs can be considered.Therefore,the stress stability analysis method is more adaptable for the aseismic computation of dam with higher aseismic intensity design.

关 键 词：抗震设计 瑞典圆弧法 应力稳定分析法 

分 类 号：TV7[水利工程—水利水电工程] TV698.23