摘要
面板堆石坝边墙挤压和垫层料摊铺碾压施工存在工序、时间与空间的干扰以及碾压质量不易保障的问题。阐述了所设计研发的边墙挤压和垫层摊铺碾压同步施工机械装置,介绍了所进行的现场试验段施工,结合灌水法及超声波成像进行了碾压压实度和边墙垫层料结合效果评价,结果表明:该施工机械的运用提高了施工效率,加快了施工进度,垫层料压实度满足质量控制要求,边墙与垫层料交界处结合良好。
For concrete faced rockfill dam(CFRD),the extruded curbs and the cushion layer overlap in construction process,with time-pace interference and no guarantees of the rolling quality.In this study,a new mechanized device is designed and developed for synchronous constructing both the curbs and the paving and rolling of cushion layer.The field test is carried out,and the compaction degree and the bonding effect between the curbs and cushion layer are evaluated by virtue of the water-injection and ultrasonic imaging.The results show that this new mechanized device improves construction efficiency and speeds up construction advancement.Meanwhile,the compaction degree of the cushion layer can meet the quality controlling requirements,and the interface between the curbs and cushion layer is well bonded.
作者
曾昭高
王开贵
孙啸
路学莹
ZENG Zhaogao;WANG Kaigui;SUN Xiao;LU Xueying(Sinohydro Bureau 7 Co.,Ltd,Chengdu,Sichuan 610213;Hohai University,Nanjing,Jiangsu 211100)
出处
《四川水力发电》
2022年第4期58-63,共6页
Sichuan Hydropower
关键词
垫层料
挤压边墙
同步施工
碾压质量
施工机械
研究
Cushion layer
Extruded curbs
Synchronous construction
Rolling quality,construction machinery
study
