抄録
The Standard penetration test and the Swedish weight sounding test are both generally used on many railway lines. Since as these tests are relatively labour-intensive, however it is difficult to perform them at many locations on one site. At the same points on many railway embankments, both a Portable dynamic cone penetration test, which is light and portable, and the Swedish weight sounding test were made. Correlations in soil strength between these two tests were analyzed and a relationship was proposed for equations between NC for the Portable dynamic cone penetration test and WSW, NSW for the Swedish weight sounding test. A conversion formula between NC and N-value in the Standard penetration test or qU for unconfined compression strength was also proposed.
