표준압밀시험과 일정변형률압밀시험에 의한 점성토의 압축지수 및 선행압밀응력에 관한 연구 = The Study on the Compression Index and the Preconsolidation Pressure of the Clay Using the Standard and the Constant Rate-of-Strain Test Methods

다국어 초록 (Multilingual Abstract)

In this study two different consolidation test methods are used to determine the compression indices and the preconsolidation pressures. Those are the Constant Rate-of-Strain Consolidation Test (CRSC) and Standard Consolidation Test (SCT). The 29 undisturbed soft clay samples from the 13 areas in South Korea are used in the tests. With these samples, total of 113 tests(91 CRSC and 22 SCT) are performed. Several soil index tests are also executed to obtain water content, specific gravity, liquid, plastic limit and so on using the same samples which are used in the consolidation tests.
In the standard consolidation test, the loads are applied to the soil specimen incrementally from 0.05 kg/cm2 to 12.8 kg/cm2 and in the constant rate-of-strain consolidation test the increasing loads are applied continuously within the same range used in the standard consolidation test. The loading strain rate of 0.2 %/min. through 0.01 %/min. are used in the constant rate-of-strain consolidation test.
Using the all data from the test results of the two different test methods the multiple regression analyses are performed to obtain the statistical relationships between the consolidation parameters and the soil index properties. These relationships are presented and discussed in this paper.

목차 (Table of Contents)

• 제1장 서론
• 제2장 시험결과 해석 및 논거
• 2.1 시험결과
• 2.2 통계해석 방법
• 2.3 표준압밀시험에서의 압축지수(Ccst) 결과해석
• 2.4 일정변형률 압밀시험에서의 압축지수(Cccr) 결과해석
• 2.5 표준 및 일정변형률 압밀시험에서의 압축지수 결과비교
• 2.6 선행압밀압력
• 제3장 결론