水利水电科技进展2017，Vol.37Issue(4)：63-69,7.DOI:10.3880/j.issn.1006-7647.2017.04.012
真空预压联合导电排水板电渗法加固海相吹填土现场试验
Field tests on marine dredger fill reinforced by vacuum preloading combined with electro-osmosis using electric vertical drains
摘要
Abstract
In order to promote the method of vacuum preloading combined with electro-osmosis using electric vertical drain ( EVDs) in large dredger fill foundation reinforcement, field tests on marine dredger fill in Wenzhou City reinforced by this method were conducted. Comparisons of this method with the method of vacuum preloading combined with electro-osmosis using metal electrodes and the conventional vacuum preloading method were performed. Changes in the vacuum pressure, surface settlement, current, and voltage were analyzed, and as was the growth rule of bearing capacity of the foundation after reinforcement. The test results show that EVDs can obtain the same reinforcement effect as metal electrodes, that their use is effective and feasible for electro-osmosis, and that their arrangement has an influence on the reinforcement effect. The surface settlement of the method of vacuum preloading combined with electro-osmosis using EVDs is over 9% larger than that of the conventional vacuum preloading method, and the bearing capacity of the foundation of the former is over 21. 4% larger than that of the latter. The bearing capacity of the deep soil increases, and the reinforcement effect is significant.关键词
真空预压法/电渗法/导电排水板/海相吹填土/地基加固/地基承载力/现场试验Key words
vacuum preloading/electro-osmosis/electric vertical drain/marine dredger fill/foundation reinforcement/bearing capacity of foundation/field test分类
建筑与水利引用本文复制引用
卜凡波,王海建,吴国强,沈林,胡建斌,彭劼..真空预压联合导电排水板电渗法加固海相吹填土现场试验[J].水利水电科技进展,2017,37(4):63-69,7.基金项目
国家自然科学基金(51578214) （51578214）
