软岩筑坝料在芝瑞抽水蓄能电站中的应用  

Application of Soft Rock Dam Materials in Zhirui Pumped-storage Power Station

作　　者：耿江博 李伟[2] 韩华强[3] 尤恒 崔笑 魏向诚 赵署光 GENG Jiangbo;LI Wei;HAN Huaqiang;YOU Heng;CUI Xiao;WEI Xiangcheng;ZHAO Shuguang(Inner Mongolia Chifeng Pumped Storage Co.,Ltd.,Chifeng 025350,Inner Mongolia,China;PowerChina Beijing Engineering Corporation Limited,Beijing 100024,China;Nanjing Hydraulic Research Institute,Nanjing 210024,Jiangsu,China)

机构地区：[1]内蒙古赤峰抽水蓄能有限公司,内蒙古赤峰025350 [2]中国电建集团北京勘测设计研究院有限公司,北京100024 [3]南京水利科学研究院,江苏南京210024

出　　处：《水力发电》2024年第8期38-43,共6页Water Power

基　　金：国网新源公司科技项目资助项目(SGXYKJ-2022-104)。

摘　　要：根据芝瑞抽水蓄能电站上水库库盆开挖料中含有软岩料的特点,结合填筑设计参数研究、室内力学试验及坝坡稳定分析等,对软岩筑坝料在芝瑞抽水蓄能电站上水库中的应用进行了有益的探索。稳定计算结果表明,芝瑞抽水蓄能电站上水库大坝在堆石2区采用70%气孔状玄武岩+30%凝灰质角砾岩、在堆石3区大幅利用开挖凝灰质角砾岩料作为填筑料是可行的;在1550 m高程以上下游坝坡坡比采用1∶2.0、采用15 m宽度堆石2区保护堆石3区、堆石2区和3区按重型击实0.98压实度控制是合适的,大坝的稳定安全有足够保障。According to the characteristics of soft rock materials in the excavation materials of the upper reservoir basin of Zhirui Pumped-storage Power Station,the application of soft rock dam materials in the upper reservoir of Zhirui Pumped-storage Power Station is explored combined with the study of filling design parameters,indoor mechanical tests and dam slope stability analysis.The results of stability calculation show that,(a)it is feasible for the upper reservoir dam of Zhirui Pumped-storage Power Station to adopt 70%stomatal basalt+30%tuffaceous breccia in the rockfill Zone 2 and to use the excavated tuffaceous breccia material as the filling material in the rockfill Zone 3;and(b)it is suitable to adopt the slope ratio of 1∶2.0 for the downstream dam slope above 1550 m elevation and the 15 m-width rockfill Zone 2 to protect the rockfill Zone 3,and to control the compaction degree of 0.98 by heavy compaction in the rockfill Zone 2 and Zone 3,that can sufficiently guarantee the stability and safety of the dam.

关 键 词：软岩 填筑标准 三轴试验 稳定分析 抽水蓄能电站 

分 类 号：TU411[建筑科学—岩土工程]