摘要
真空预压联合电渗法能够发挥真空预压法和电渗法各自的优势,是一项极具潜力的软基处理技术,而电动土工合成材料(EKG)则是电渗法常用的电极材料之一。为研究不同电极材料及通电方式对真空预压联合电渗法排水效果的影响,基于EKG电极开展室内一维模型试验,设置了金属电极作为对照,研究在不同材料和通电方式下的排水固结规律,通过补充试验进一步探索了在不同反转电压的真空预压联合电渗的排水效果。试验结果表明:在本研究的试验条件下,EKG电极在持续通电、间歇通电和反转通电三种模式下的总体电渗排水效果要优于铁、铝和铜电极;当采用EKG、铝和铜电极时,通过对软土采用间歇通电模式,可以激活软土排水的潜力,提高排水量;当采用EKG电极时,选择合适的反转电压,可以有效促进软土的排水固结,获得超过持续通电和间歇通电两种模式的排水效果。
Vacuum preloading combined with electroosmosis can give full play to the respective advantages of vacuum preloading and electroosmosis,and is a very potential soft ground treatment technology,and EKG is one of the commonly used electrode materials for electroosmosis.In order to study the effect of different electrode materials and energization methods on the drainage effect of vacuum preloading combined with electroosmosis,an indoor one-dimensional model test was carried out based on EKG electrodes,and a metal electrode was set as a control to study the drainage consolidation under different materials and energization methods.The drainage effect of vacuum preloading combined with electroosmosis at different reverse voltages was further explored through supplementary experiments.The test results show that:under the test conditions in this paper,the overall electroosmotic drainage effect of the EKG electrode in the three modes of continuous energization,intermittent energization and reverse energization is better than that of iron,aluminum and copper electrodes;when EKG,aluminum and copper electrodes are used.When using the electrode,the soft soil drainage potential can be activated by using the intermittent energization mode for the soft soil,and the drainage volume can be increased;when the EKG electrode is used,the appropriate reverse voltage can be selected to effectively promote the drainage consolidation of the soft soil,and obtain more than continuous.Drainage effects in both energized and intermittent energized modes.
出处
《建筑技术开发》
2024年第1期152-154,共3页
Building Technology Development
关键词
真空预压
电渗法
EKG
排水固结
vacuum preloading
electroosmosis
EKG
drainage consolidation
