The Analysis of Vacuum-Surcharge Preloading Method with FLAC3D

Abstract:

Based on the test section on the expressway in Jiangsu, the thesis makes a model and then conducts numerical simulation on the settlement of soft soil subgrade by using FLAC^3D. The author set the filling layer null, and assigns a value to the loaded soil layer according to the construction sequence to realize multi-stage loading. The thesis also analyzes the pore water discharge and foundation deformation when the soil is consolidated. It shows that the simulation result is very close to actual measurement result, and can clearly demonstrate the real situation of settlement.

• Periodical: Applied Mechanics and Materials (Volumes 405-408)
• Pages: 151-154
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.405-408.151
• Online since: September 2013
• Authors: Chun Yuan Liu, Song Shen, Jie Li, Peng Chao Zhang
• Keywords: Numerical Simulation, Soft Soil Subgrade, Subgrade Settlement, Vacuum-Surcharge Preloading

References

[1] Yueguo Wang: Theory and experiment of vacuum combined surcharge preloading method for foundation improvement, Doctoral Dissertation, in Chinese.

[2] Qinyuan Li, Jianxi Ren, Hui Liu, Changqing Liu, Chaoke Liu, Yang Sun: Journal of Xi'an University of Science and Technology Vo1. 29 (2009), p.716, in Chinese.