堆石料的不同类型相对密度试验方法研究及其应用  

Research and Application of Different Relative Density Test Methods for Rockfill Material

作　　者：车维斌[1] 田中涛[1] 江万红[1] 王森荣[1] CHE Weibin;TIAN Zhongtao;JIANG Wanhong;WANG Senrong(Sinohydro Bureau 5 Co.,Ltd.,Chengdu 610066,Sichuan,China)

机构地区：[1]中国水利水电第五工程局有限公司,四川成都610066

出　　处：《水力发电》2018年第2期21-24,共4页Water Power

摘　　要：通过对堆石料进行现场相对密度试验和现场原位碾压试验,得到堆石料的最大、最小干密度,并相互验证其合理性,进而说明堆石料孔隙率施工检测数值的合理性。试验结果表明:现有相对密度试验方法无法适应堆石料的最大、最小干密度测试,存在较大的偏差,采取现场大型原位碾压试验取得的孔隙率数据较为真实客观。大型碾压机械可以将堆石料压实到理想效果,我国现有的碾压设备可以满足当前高土石坝建设的需要。The maximum and minimum dry densities of rockfill material are obtained by on-site relative density test and in-situ rolling test of rockfill material. The reasonableness of these two dry densities can be verified by the comparison of them, and credible maximum and minimum dry densities can also demonstrate the rationality of rockfill material porosity detection results. The test results show that existing relative density test methods are not suitable for maximum and minimum dry density tests of rockfill material, and there is a bigger deviation. The porosity data obtained from large-scale in-situ rolling tests are more realistic and objective. Large rolling compaction machinery can compact roekfi11 material to desired degree, and China＇s existing rolling equipment can meet the requirements of high earth-rock dam construction.

关 键 词：堆石料 最大干密度 最小干密度 孔隙率 相对密度试验 原位碾压试验 两河口水电站 

分 类 号：TV541.1[水利工程—水利水电工程]