2019 Volume 75 Issue 2 Pages I_187-I_192
A new sounding method, named Vibro Sampling and Cone Penetration Test (VS-CPT) was proposed as an economical and effective geotechnical investigation method for shallow ground about 20 meters below seafloor.
A series of experiments of penetration tests in a model sand bed were conducted to study a proper shape of the probe that reduce penetration resistance and assure sample retrieval. The results demonstrated that vibration is effective for penetration and sand sample can be obtained if the aperture ratio was 0.5 or more. Furthermore, a prototype test device (Mark 1) with an aperture ratio of 0.67 was designed and manufactured for penetration depth of 2 meters.
