Analysis of influence of different pressure and different depth of pvd on soft foundation treatment

3rd International Conference on Advances in Energy Resources and Environment Engineering

能源学;生态环境科学

Li, Bin^1,2,3 ; Wang, Xuekui^1,2,3

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

Key Laboratory of Port Geotechnical Engineering, Ministry of Communications, Tianjin, China^2

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

关键词: Different pressures;    Loading modes;    Preloading;    Soft foundation treatment;    Surcharge load;    Vacuum combined surcharge preloading;    Vacuum preloading;    Vertical drainage;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/113/1/012032/pdf
DOI  :  10.1088/1755-1315/113/1/012032

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

According to the depth of plastic vertical drainage (pvd), the arrangement mode and the loading mode to analyze the influence of Vacuum preloading near the existing road. 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 analyze 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.