Title |
Newly Developed Settlement Prediction Method on Soft Soils with Subsequent Surcharge Change |
Keywords |
settlement prediction;soft soil;inverse analysis;surcharge change;field measurement;침하 예측;연약 지반;역해석;성토 변화;현장 계측 |
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. |