Construction Technology of Shuibuya Concrete Faced Rockfill Dam-Construction Compacting Test
Shuibuya concrete faced rockfill dam with the height of 233 m is the highest CFRD dam completed both in china and worldwide. This dam is constructed by cushion materials (Ⅱa),transition materials (Ⅲa),the main rockfill materials (ⅢB),3C materials (Ⅲc),and downstream rockfill materials (Ⅲd)-In order to ensure the dams construction quality site filling compaction tests are carried out to all dam materials adopted,for the purpose of obtaining the best quality control and detection method of dam filling. Total 9 tests with 78 unit tests were carried out,detecting 1,515 sets of data. This paper introduces equipments,methods,test results of 9 different dam materials roller compaction tests,analyzes the relationship between roller compacted sedimentation rate and rolling times,the relationship between compacted dry density and rolling times as well as the relationship between porosity and rolling times,and also the relationship between filler compaction effect and the grading features before and after dam material filling,seepage properties after filler rolling,the rolling effect and sprinkler volume of different rolling machines,according to the testing results,this paper proposed rational construction parameters on sprinkler method,sprinkler volume,charging pattern,the thickness of materials,rolling equipment models and roller compacted layer parameter.
CFRD roller compaction test testing results analysis
Zhu Zhixue
China Gezhouba Group Corporation,Yichang 443002,China
国际会议
The 1st International Symposium on Rockfill Dams(第一届堆石坝国际研讨会)
成都
英文
549-556
2009-10-18（万方平台首次上网日期，不代表论文的发表时间）