砾石土料全级配击实仪研制及应用

砾石土料最大粒径为100 mm全级配击实仪的成功研制与应用,提高了全级配击实试验的科学性,保证了试验结果准确可靠。特别在类似的工程中全级配击实仪首次采用锤击点角度为53.5°,实现了锤击点之间无击实盲区,在国内已建类似工程中未见相关文献资料。本文依托双江口水电站工程,研制全级配土料超大型击实仪(土料最大粒径为100 mm),真实反映了土料全级配击实试验结果,为砾石土心墙料采用全料压实度控制碾压质量提供可靠的基础数据,具有较高的推广价值。

Development and Application Gravel Soil Full Grading Compaction Apparatus

Successful development and application of full grading compaction apparatus for gravel soil with maximum size of 100 mm has improved the scientific nature of full grading compaction test and ensured the accuracy and reliability of the test results.Full grading compaction apparatus used in similar projects has realized a compaction angle of 53.5°for the first time,which leaves no blind spot between the hammering points.No relevant literature has been found on similar projects that have been built in China so far.Based on the engineering practice on Shuangjiangkou Hydropower Station,a new type of super-large full grading compaction apparatus named SD-500which allows maximum particle size of 100mm is developed,and the full grading compaction test results provide reliable basic data for overall compaction control of gravel-soil core wall.The apparatus is worth popularizing.