摘要
堆石料填筑设计标准通常以孔隙率指标进行评价,但在大型碾压机械应用以后该评价指标很容易达到设计要求。鉴于这种情况,在雅砻江两河口水电站工程中研究采用相对密度法对大坝堆石料填筑质量进行控制的可行性。介绍了在碾压试验现场进行大型相对密度试验的方法,即通过坑测法和附加质量法在相同和不同测点进行试验检测;比较了不同测试方法的检测成果及相对密度控制的可行性。综合分析表明,用附加质量法检测堆石料相对密度具有可行性。
The design standard of rockfill is usually evaluated by porosity index.However at present porosity is likely to meet the design standard after the application of large compacting machinery.In view of this situation,the engineers studied the feasibility of controlling rockfill quality based on relative density method in Lianghekou Hydropower Station on Yalong River.In this paper,test methods of relative density,namely the pit measuring method and additional mass method at rolling site were introduced,and we compared their test results and feasibility in evaluating the relative density in practice.The results showed that the application effect of additional mass method was better.
作者
蔡加兴
方德扬
CAI Jiaxing;FANG Deyang(Changjiang Survey,Planning,Design And Research Co.,Ltd.,Wuhan 430010,China;Yalong River Hydropower Development Co.,LTD.Chengdu 610056,China)
出处
《人民长江》
北大核心
2019年第12期136-141,共6页
Yangtze River
基金
国家重点研发计划项目(2017YFC0405002)
关键词
堆石料
相对密度
碾压质量
坑测法
附加质量法
rockfill material
relative density
rolling quality
pit measuring method
additional mass method
