【摘要】 建立了考虑钉结护面板作用的土石坝坝坡地震稳定和滑移计算方法.在此基础上,对比分析了无加固措施和采用钉结护面板两种工况下295 m级两河口心墙堆石坝的坝坡稳定性.结果表明:采用钉结护面板后,坝坡最小安全系数对应的滑弧加深,安全系数明显提高,滑移量减小,有效地增加了坝顶的整体稳定性;随输入地震动峰值增加,钉结护面板对坝坡稳定安全系数的贡献逐渐增大.更多还原

【Abstract】 Considering nail-tied panel effect,a method of calculating rockfill dam slope seismic stability and slippage was established.Based on the method,the slope stability of the Lianghekou core dam with 295 m in height was analyzed,and the effects of nail-tied panel on the stability of high earth-rockfill dam slope were studied.The results show that with nail-tied panel,the slip surface corresponding to the minimum safety factor becomes deeper,the dam slope safety factors are improved obviously,and the dam stability is enhanced effectively.With the increase of the earthquake peak acceleration,the dam slope stability can benefit from nail-tied panel significantly.更多还原