摘要
通过在高填石路堤模型上的密实度动测实验,提出了用修正单模态法测试衰减系数评价压实效果的方法,并将修正单模态法与冲击响应频谱法、动刚度法做了对比。试验结果表明,衰减系数基本能够反映路堤压实过程中的平均沉降量。此外,实验还进行了附加质量法测试,其结果表明附加质量法测得的参振质量也基本能够反映填石路堤修筑压实后达到的密度,最后还给出了参振质量与高填石路堤密度之间的回归公式。
<Abstrcat> Based on the model experiments of rockfill embankment, the authors study the application of dynamic test. This paper provides a modified single mode method for evaluating the compactness, firstly the attenuation coefficient from modified single mode method is compared to that from shock frequency method and dynamic stiffness method. The result shows that attenuation coefficient can reflect the settlement. Moreover, additive mass method is also applied,it is shown that the vibrating mass obtained by additive method can reflect the density of the compacted rockfill embankment. Finally, regression equation between vibrating mass and the density of high embankment with rock is presented.
出处
《中国岩溶》
CAS
CSCD
北大核心
2005年第2期124-127,共4页
Carsologica Sinica
基金
交通部西部交通建设科技项目"岩溶地区公路基础设计与施工技术研究"(编号 :2 0 0 2 -3 1 8-0 0 0 -1 9)
