Browse > Article
http://dx.doi.org/10.12652/Ksce.2011.31.5C.155

Newly Developed Settlement Prediction Method on Soft Soils with Subsequent Surcharge Change  

Chun, Sung-Ho (대림산업(주) 기술개발원 토목연구지원팀)
Kim, Han-Saem (서울대학교 건설환경공학부)
Yune, Chan-Young (강릉원주대학교 토목공학과)
Chung, Choong-Ki (서울대학교 건설환경공학부)
Publication Information
KSCE Journal of Civil and Environmental Engineering Research / v.31, no.5C, 2011 , pp. 155-162 More about this Journal
Abstract
Settlement prediction based on field monitored data, which is used to control subsequent surcharges, is very important in construction management for soft ground improvement with the preloading method. Observational settlement prediction methods, which are suggested for an instantaneous loading, have been widely used in fields. However, they have difficulties in the settlement prediction with subsequent surcharge change. In this paper, a simple method to predict the settlement with subsequent surcharge change is suggested. The suggested method adopts assumptions to simplify the complex field condition and utilizes observational methods. The suggested method is applied to a large consolidation test result, FDM analysis results, and field monitored settlement data to confirm its practicability. From the applications, the suggested method produces reasonable prediction results with various subsequent surcharge changes.
Keywords
settlement prediction; soft soil; inverse analysis; surcharge change; field measurement;
Citations & Related Records
연도 인용수 순위
  • Reference
1 유한규, 김종희(2000) 수정된 쌍곡선 법을 이용한 장기 침하량 예측. 한국지반공학회 논문집, 한국지반공학회, Vol. 16, No. 3, pp. 163-172.
2 윤찬영, 조경진, 정충기(2007) 연약지반 압밀해석을 위한 다층지반 및 스미어 경계 영역에서의 수치해석 기법 개발. 2007년도 봄 학술발표회 논문집, 한국지반공학회, pp. 406-413.
3 정성교, 최관희, 최호광, 조기영(1998) 압밀해석을 위한 $\sqrt{S}$예측 기법. 한국지반공학회 논문집, 한국지반공학회, Vol. 14, No. 2, pp. 41-53.
4 Aboshi, H. (1973) An experimental investigation on the similitude in the consolidation of a soft clay, including the secondary creep settlement, Proc., 8th Int. Conf. on Soil Mechanics and Foundation Engineering, Moscow, Specialty Session 2, 4.3. pp. 88.
5 Al-Shamrani, M.A. (1998) Application of the $C_{a}/C_{c}$ concept to secondary compression of sabkha soils. Canadian Geotechnical Journal, NRC Research Press, Vol. 35, No. 1, pp. 15-26.   DOI   ScienceOn
6 Al-Shamrani, M.A. (2004) Applying the hyperbolic method and $C_{a}/C_{c}$ concept for settlement prediction of complex organic-rich soil formations, Engineering Geology, Elsevier, Vol. 77, No. 1-2, pp. 17-34.
7 Asaoka, A. (1978) Observational procedure of settlement prediction. Soils and Foundations, JGS, Vol. 18, No. 4, pp. 87-101.   DOI
8 Cao, L.F., Chang, M.F., Teh, C.I. and Na, Y.M. (2001) Back-calculation of consolidation parameters from field measurements at a reclamation site. Canadian Geotechnical Journal, NRC Research Press, Vol. 38, No. 4, pp. 755-769.   DOI   ScienceOn
9 Kwan Lo, D.O. (1991) Soil improvement by vertical drains, Ph.D. Dissertation, University of Illinois at Urbana-Champaign, Urbana-Champaign, Illinois, USA.
10 Liingaard, M., Augustesen, A. and Lade, P.V. (2004) Characterization of models for time-dependent behavior of soils. International Journal of Geomechanics, Wiley InterScience, Vol. 4, No. 3, pp. 157-177.   DOI   ScienceOn
11 Mesri, G. and Choi, Y.K. (1985) Settlement analysis of embankments on soft clay. Journal of the Geotechnical Engineering, ASCE, Vol. 111, No. GT 4, pp. 441-464.   DOI
12 Mesri, G., Feng, T.W., and Benak, J.M. (1990) Postdensification penetration resistance of clean sands. Journal of Geotechnical Engineering, ASCE, Vol. 116, No. 7, pp. 1095-1115.   DOI
13 Mesri, G. and Godlewski, P.M. (1977) Time- and stress-compressibility interrelationship. Journal of Geotechnical Engineering, ASCE, Vol. 103, No. GT5, pp. 417-430.
14 Mesri, G., Stark, T.D., Ajlouni, M.A. and Chen, C.S. (1997) Secondary compression of peat with or without surcharging. Journal of Geotechnical and Geoenvironmental Engineering, ASCE, Vol. 123, No. 5, pp. 411-421.   DOI   ScienceOn
15 Tan, T.S., Inoue, T. and Lee, S.L. (1991) Hyperbolic method for consolidation analysis. Journal of Geotechnical Engineering, ASCE, Vol. 117, No. 11, pp. 1723-1737.   DOI