일정변형률 압밀시험을 이용한 방사 내측배수 압밀해석 = Constant Rate of Strain Consolidation Test for Radially Inward Drainage

국문 초록 (Abstract)

본 연구에서는 방사내측배수 조건하에서 일정변형률 압밀시험을 실시할 수 있는 실내시험용 압밀실을 개발하였다. 또한 이를 분석하고 관련 압밀특성을 결정할 수 있는 이론해를 제안하였다. 성형 카올리나이트를 이용하여 개발된 시험기에 의한 방사내측 일정변형률 압밀시험과 더불어 비교 대상이 되는 방사내측배수 연직배수와 방사외측배수에 대한 단계재하 압밀시험과 방사외측배수 및 연직배수 일정변형률 시험을 실시하였다. 이를 통하여 개발된 방사내측배수 일정변형율 시험기의 결과들이 타 실험방법의 결과들과 일치할 뿐만 아니라, 시료 교란 효과가 줄어든 안정적이고, 신뢰성 높은 결과를 제시하는 것을 확인하였다.

다국어 초록 (Multilingual Abstract)

In this study, a consolidometer for radially inward drainage under constant rate of strain (CRS) loading was developed. Their analytical solutions for evaluating consolidation characteristics of soils were also derived. With reconstituted kaolinite samples, comparative tests of the developed CRS loading consolidation in radially inward drainage together with incremental loading (IL) consolidation in radially inward, vertical and radially outward drainages and CRS loading consolidation in radially outward and vertical drainages were carried out. From the test results, It is confirmed that the results of the developed consolidometer were not only in good agreement with those of other consolidation tests but also they were more stable and reliable with less sample disturbance effect.

목차 (Table of Contents)

• Abstract
• 요지
• 1. 서론
• 2. 개발된 시험장치
• 3. 이론적 배경 및 방사내측배수 일정변형률 압밀이론 개발
• 4. 시험계획 및 방법과 사용시료
• 5. 시험결과 및 분석
• 6. 결론 및 요약
• 감사의 글
• 참고문헌

참고문헌 (Reference)

1 "일정변형률 압밀시험을 이용한 방사배수 조건하에서의 압밀해석" 한국지반공학회 18 (18): 147-157, 2002

2 "and standard consolidation testing of sensitive clays Consolidation of Soils" 433-450, 1986

3 "Using an automated Rowe cell for constant rate of strain consolidation testing" ASTM 19 (19): 354-363, 1996

4 "The measured horizontal coefficient of consolidation of laminate" 6th icsmfe (6th icsmfe): 342-344, 1965

5 "Standard test method for one-dimensional consolidation properties of soils using controlled-strain loading" ASTM D4186-89 515-519, 1996

6 "Sand drain model by central drain oedometer" 1 : 745-750, 1981

7 "Permeability characteristics of soft clays" 1 : 1994pp.187-192.

8 "Improved determination of pre-consolidation pressure of a sensitive clay" Philadelphia astm stp 254 : 254-271, 1959

9 "Constant rate of strain consolidation with radial drainage" ASTM 26 (26): 432-443, 2003

10 "Constant rate of strain consolidation for very soft clayey soils" 20 : 79-95, 1980

11 "Consolidation with constant rate of deformation" 31 (31): 215-229, 1981

12 "Consolidation test at constant rate of strain for radial drainage" ASTM 28 (28): 71-78, 2005

13 "Consolidation of clay layers based on non-linear stress-strain" 2 : 83-87, 1965

14 "Consolidation behavior of clayey soils under radial drainage" ASTM 19 (19): 421-431, 1996

15 "Consolidation at constant rate of strain" 1393-1413, 1971

16 "A new consolidation cell" 16 (16): 162-169, 1966

17 "*정회원ㆍ한국건설기술연구원 국토지반연구부 박사후 연구원"