Sensitivity Analysis on Factors of Vacuum Preloading Strengthening Effect

4th International Conference on Energy Equipment Science and Engineering

Li, Bin^1^2^3^4

Tianjin Port Engineering Institute Ltd., CCCC First Harbor Engineering Company Ltd., Tianjin, China^1

CCCC First Harbor Engineering Company Ltd., Tianjin, China^2

Key Laboratory of Port Geotechnical Engineering, Ministry of Communications, Tianjin, China^3

Key Laboratory of Port Geotechnical Engineering of Tianjin, Tianjin, China^4

关键词: Loading modes;    Preloading;    Reinforcement effects;    Strengthening effect;    Surcharge load;    Vacuum combined surcharge preloading;    Vacuum preloading;    Vertical drainage;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/242/6/062024/pdf
DOI  :  10.1088/1755-1315/242/6/062024

来源: IOP

【 摘 要 】

The depth, arrangement mode and the loading mode of plastic vertical drainage (pvd) have great influence on the reinforcement effect. An arrangement mode of vacuum preloading to reduce the impact was put forward. The combination of different depth of pvd and loading modes are used to analyse the effect of vacuum preloading treatment and its influence range. The calculations show that the deformation and the influence distance are smaller by using the 40kPa vacuum loading and 41kPa surcharge load preloading. Reducing the depth of the pvd and vacuum combined surcharge preloading can weaken the influence to the existing highway.