EKG电极形式对电渗联合真空预压加固效果的影响

通过宁波滨海某围海造陆工程电渗联合真空预压的现场试验研究，对强度、含水率、沉降、孔压等参数进行监测，比较新型管式EKG电极和传统板式EKG电极对吹填淤泥的加固效果。结果表明:管式EKG电极加固区域的土体强度更高，孔压消散更快，沉降量更大，深部含水率更低，是更为高效的电极材料。主要原因在于，管式EKG电极排水通道更为畅通，不易被淤泥堵塞，从而为软黏土电渗联合真空预压加固提供了更为有效的电极材料。

The Influence of Different EKG Electrode Forms on Electro-osmosis Combined with Vacuum Preloading Reinforcement Effect

The reinforcement effect of the novel tubular EKG electrode on hydraulic fill mud was well compared with that of conventional plate EKG electrode by monitoring the strength, water content, settlement and pore pressure accumulation through the field test of electro-osmotic combining with vacuum preloading of a reclamation project in coastal of Ningbo, China. Test results showed that the soil in tubular EKG electrode treatment area had higher strength, larger settlement and quicker dissipation of pore water pressure. Particularly, the deep soil was significantly improved and had lower water content when compared with that of the plate EKG, which suggested that the tubular EKG material was more efficient in deep soil treatment. And the main reason lies in the fact that the drainage channel in tubular EKG is not easy to be clogged, thus providing more effective electrode material for electro-osmosis combined with vacuum preloading reinforcement of soft clay.