摘要
在8遍点夯+4遍满夯的处理下,使用瑞雷波法检测路基加固效果,从频散曲线可以看出加固后路基土密实度明显改善,波的传播速度提升较大,土体承载力、变形模量有较大的改善。通过试验段数据的回归分析,确定承载力、变形模量与传播速率的定量关系。结果表明约96%的测点满足路基承载力强度要求,强夯法加固软土路基的效果较好,可为类似工程提供参考。
Under the treatment of 8 times point ramming+4 times full ramming,the Rayleigh wave method is used to detect the effect of subgrade reinforcement.From the dispersion curve,it can be seen that the compactness of subgrade soil is significantly improved after reinforcement,the propagation speed of wave is greatly improved,and the bearing capacity and deformation modulus of soil are greatly improved.Through regression analysis of the test data,the quantitative relationship among the bearing capacity,deformation modulus and propagation rate is determined.The results show that about 96%of the measuring points meet the requirements of subgrade bearing capacity and strength,and the effect of dynamic compaction is better,which can provide reference for similar projects.
作者
王强
Qiang Wang(Shanghai Municipal Planning&Design Research Institute,Shanghai 210012,China)
出处
《青海交通科技》
2020年第1期100-102,共3页
Qinghai Transportation Science and Technology
关键词
强夯法
地基处理
瑞雷波检测
回归分析
dynamic compaction
foundation treatment
Rayleigh wave detection
regression analysis
