Original Article
Abstract
References
Information
Purpose: In this study, field experimental research was conducted to analyze the settlement characteristics of soft ground in the central inland region of Korea and use it in practice. Method: The design predicted values and comparative analysis were performed using the ten settlement measurement data actually measured in the field experiment. For the design prediction value, Terzaghi's one-dimensional consolidation settlement analysis was used. In the experiment, the surface subsidence plate was used for field measurement. Result: The settlement behavior of the predicted value and the actual value was generally similar, but in the settlement value, the actual settlement value showed a settlement behavior of 30% or less compared to the predicted settlement value. The rate of consolidation settlement in this study area was in the range of 9.6% to 27.0%, and the average value was 18.21%. It is analyzed that the prediction of the settlement amount of the silty soils distributed in the inland plains of the central region of Korea can be relatively overestimated. Conclusion: It is judged that precise ground investigation and detailed prediction are necessary because there is a possibility of over-design in the design for predicting the amount of settlement of the silty soils distributed in the inland plains of the central region of Korea.
연구목적: 본 연구에서는 우리나라 중부 내륙지역의 연약지반 침하특성을 분석하여 실무에 활용할 수 있도록 하기 위하여 현장실험연구를 실시하였다. 연구방법: 현장실험에서 실측한 10개의 침하계측 자료를 이용하여 설계예측값과 비교분석을 실시하였다. 설계예측값은 Terzaghi의 일차원 압밀침하량분석을 사용하였다. 실험에서 현장계측은 지표침하판을 이용하였다. 연구결과: 예측값과 실제값의 침하거동은 대체로 유사하였으나 침하량 값에서는 실제 침하량 값이 예측 침하량 값에 비하여 30%이하의 침하거동을 보였다. 본 연구지역의 압밀침하율은 9.6%~27.0% 범위를 나타내었으며 평균값은 18.21% 로서 우리나라 중부지역 내륙의 평야지대에 분포된 실트질 연약지반의 침하량 예측은 비교적 매우 과다하게 예측될 수 있는 것으로 분석되었다. 결론: 우리나라 중부지역 내륙의 평야지대에 분포된 실트질 연약지반의 침하량 예측 설계에서는 과다설계 가능성이 있으므로 정밀한 지반조사와 세밀한 예측이 필요한 것으로 판단된다.
- Asaoka, A. (1978). "Observational procedure of settlement prediction." Soils and Foundations, Vol. 18, No. 4, pp. 87-101. 10.3208/sandf1972.18.4_87
- Barron, R.A. (1948). "Consolidation of fine grained soils by drain wells transactions." Transactions of American Society of Civil Engineers, Vol. 113, pp. 718-754. 10.1061/TACEAT.0006098
- Chang, M.F. (1991). "Interpretation of over consolidation ratio from in_su tests in recent clay deposits in Singapore and Malaysia." Canadian Geotechnical Journal, Vol. 28, No. 2, pp. 210-225. 10.1139/t91-028
- Hansbo, S. (1981). "Consolidation by vertical drains." Geotechnique, Vol. 31, No. 1, pp. 45-66. 10.1680/geot.1981.31.1.45
- Hosino, S. (1962). "Problems of foundation in recent years." Society of Civil Engineering, Vol. 47, No. 7, pp. 124-131.
- Kim, J.S. (2021). "An experimental study on the settlement characteristics of soft ground in the central west coast region." Journal of Korea Society of Disaster Information, Vol. 17, No. 4, pp.786-793.
- Onoue, A. (1988). "Consolidationby taking well resistance and smear into consolidation." Soils and Foundations, Vol. 28, No. 4. pp. 165-174. 10.3208/sandf1972.28.4_165
- Tan, T.S., Inoque, T., Lee, S.L. (1991). "Hyperbolic method for contributions analys." Journal of Geotechnical Engineering, Vol. 117, No. 11, pp. 1723-1737. 10.1061/(ASCE)0733-9410(1991)117:11(1723)
- Terzaghi, K. (1943). "Theoretical soil mechanics." Wohn Wiley & Sons, INc., NewYork, N.Y. 10.1002/9780470172766
- Yoon, B.J. (2016). "ITS system architecture based upon object-oriented methodology." Journal of Korea Society of Disaster Information, Vol. 12, No. 1, pp. 105-115. 10.15683/kosdi.2016.3.31.105
- Publisher :The Korean Society of Disaster Information
- Publisher(Ko) :한국재난정보학회
- Journal Title :Journal of the Society of Disaster Information
- Journal Title(Ko) :한국재난정보학회논문집
- Volume : 18
- No :4
- Pages :706-712
- DOI :https://doi.org/10.15683/kosdi.2022.12.31.706


Journal of the Society of Disaster Information






