Study on the Electro-Osmosis-Combined-Preloading Method in Strengthening Reclaimed Sludge from the Macroscopic and Microscopic Views

The electro-osmosis-combined-preloading method is considered very promising in soft soil improvement, while the uncertainty function mechanism has hindered its practical application. To explore of combined method, experiments concerning single electro-osmosis and were carried out using reclaimed sludge. Macroscopic microscopic properties explored compared. Drainage, settlement, water content pore structure detected during experiments. total drainage average settlement were, respectively, 20.8% 34.5% greater than that method. void ratio soils treated by was 13.8% lower Moreover, reduction rates are found higher apparent for each It can be concluded had better performances, both from macroscopic views. Furthermore, a theoretical analysis demonstrated desaturated shrinkage volume drained electro-osmosis. This derived essence electro-osmosis, which determines considerable pores formerly occupied cannot effectively compressed. fully use advantages methods active through further compression skeleton preloading. Therefore, strongly recommended sludge strengthening.