摘要
激光粒度仪具有测试速度快、操作方便、重复性好、测试范围宽,能保持土颗粒的完整性等优点,在泥沙颗粒粒度分析中已经得到成功运用,但在土工颗粒分析中应用还较少。通过对激光粒度仪法与密度计法的对比试验,探讨了前处理在激光粒度仪土样测试中的重要性。对两种土工颗粒试验结果进行了对比分析,并建立了结果相互转化的回归方程。对激光粒度仪在土工颗粒分析中的推广应用具有参考价值。
The laser particle size analyzer has been successfully used in the particle size analysis of sediment due to the advantages of high test speed,easy operation,good reproducibility,wide application and ability of maintaining the integrity of soil particles,etc.But there is still few application of laser particle size analyzer in geotechnical particle size analysis,and therefore it is worth promoting in geotechnical granulometric grading test.By comparing the results between laser particle size analyzer and densimeter method,we emphasize the importance of pre-treatment in the test using laser particle size analyzer.The comparative analysis of the two grain size tests results are conducted,and the regression equation is established for mutual transformation between the two results,providing a reference value for the soil particles analysis using laser particle size analyzer in geotechnical engineering.
出处
《人民长江》
北大核心
2012年第24期50-54,共5页
Yangtze River
关键词
激光粒度仪
密度计法
颗分试验
前处理
对比分析
回归方程
laser particle size analyzer
densimeter method
grain size test
pre-treatment
comparative analysis
regression equation
