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제안 방법
- (2004).Additional triaxial and fundamental property tests were performedin this study using Jumunjin sand. Relative densities in range of 45 – 90% and confining stresses in range of 50 – 400 kPa were considered in triaxial tests to characterize state-dependent shear strength of Jumunjin sand.
- In order to verify the proposed methods, calibration chamber cone penetration tests using Jumunjin sand and from literature were adopted and used in comparison and verification. A total of 11 calibration chamber CPTs using Jumunjin sand were performed at different relative densities and stress states.
- In this study, methodology for the field application of the dilatancy equation based on CPT cone resistance q c is investigated for sandy soils containing fines. Results from a series of laboratory tests and cone penetration analysis were used for the development of CPT-based methods of strength and dilatancy evaluation for sands. Based on empirical correlations between qc and mpfor a given TX and equivalent field stress state, a modified dilatancy index IR,CPT in terms of qc was proposed and investigated for different K0 conditions.
대상 데이터
- Calibration chamber CPTs were also performed for characterizing CPT-stregnth correlation.The calibration chamber used in this study was made of steel and had a diameter and height equal to 77.5 and 125 cm, respectively. Inside the chamber, two rubber membranes were attached on the bottom and lateral sides.
데이터처리
- (2), due to numerical differences between qc and σ'mp . In order to obtain values of QCPT and RCPT , a regression analysis was performed using TX test results. Fig.
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