摘要
在农业和工程领域,土壤压实度是一个重要问题.虽然采用钻孔方法可以探测土壤压实度情况,但费用较高.本文采用多道面波分析方法(MASW)研究了土壤压实度的问题,并将试验结果同电阻率测井数据、岩心数据、测井速度做了对比,结果表明该方法可以用于土壤压实度的探测,而且速度快、费用低、结果准确可信.
The shear (S)wave velocity field, calculated using the Multichannel Analysis of Surface Waves(NASW) method was used to study the soil compaction in Palco, West Kansas. Preliminary work suggested that some nearsurface soils were compacted by tractors. Since the soil compaction can affect the land use in agriculture and plays an important role in foundation estimation in geotechnical engineering fields, it is worth developing a high efficient nondestructive geophysical method to measure it. Since the Swave velocity is sensitive to shear module, which is directly related to the particle pattern of the soil, we decide to test the ability of MASW method applied in soil compaction study. The coring , EC well logging and drilling speed were used in the test to present more and detailed information and testify the Swave velocity inversion results. The results demonstrate that the very shallow MASW surveys can be applied in soil compaction study.
出处
《地球物理学进展》
CSCD
2003年第3期450-454,共5页
Progress in Geophysics
基金
吉林大学创新基金资助.
