LI Chang-hui, WU Hang, CHENG Guo-yong, et al. Comparative experimental study on soft soil reinforcement by vacuum preloading with different band drains[J]. 2022, 43(10): 2819-2827.
LI Chang-hui, WU Hang, CHENG Guo-yong, et al. Comparative experimental study on soft soil reinforcement by vacuum preloading with different band drains[J]. 2022, 43(10): 2819-2827.DOI: 10.16285/j.rsm.2021.2057.
for the problem of poor reinforcementeffect in the process of vacuum preloading using band drains
most of theexisting studies focus on the vacuum preloading loading mode
while there is a lack of theoretical andexperimental studies on the emerging drains of different structure types. Inthis study
three types of band drains are selected for vacuum preloading modeltests
and the reinforcement law and effect of different band drains in theprocess of vacuum preloading are compared. The test results show that the soilmoisture contents of soil treated by double-sided connected drains and straw banddrains are reduced by 9% and 5% respectively as compared with the conventionalband drains
and the vane shear strength is increased by 1.7 kPa and 1 kPa onaverage. It means that the double-sided connected band drains has betteranti-silting performance
and the straw band drains can achieve betterreinforcement effect than the common band drains while having thecharacteristics of environmental protection
which provides a new solution tosolve the problem of poor reinforcement effect of vacuum preloading.