軟弱粘性土地盤の力学特性推定へのCPTの適用性 : 大阪湾海成粘土での事例(<特集>最新のCPTテクノロジー)  [in Japanese] Applicability of CPT to Mechanical Characteristics Prediction of Soft Clay : A Case Study on Osaka Bay Clay(<Theme>Latest Development of CPT Technology)  [in Japanese]

Five formulas are shown to predict mechanical properties of soft clay such as s_<u(mob)>, σ'_y, and m_v. They are empirical correlations between CPT and various laboratory test results conducted in East and South East Asian clay. Parameters used for interpretation of the CPT results are not only net cone resistance but also effective cone resistance and excess pore water pressure generated by cone penetration. Values calculated from the empirical formulas are compared with actual measurement values at the site in Osaka Bay. As a result, it is shown that CPT can predict design values of soft clay with enough accuracy.