STUDY ON BASIC THEORETICAL CALCULATION OF SOFT FOUNDATION CONSOLIDATION UNDER THE COMBINED ACTION OF ELECTROOSMOSIS AND VACUUM
At present,most of the widely used formulas for calculating electroosmotic coefficient are based on H-S model,but due to the limitation of its own model,it is impossible to further explain some phenomena in electroosmotic reinforcement,such as the optimal salt content,and there is a big gap between the electroosmotic coefficient calculated by this theory and the measured data.In this paper,based on the relevant theories of N-P equation and H-S model,the mechanism of electroosmotic reinforcement is studied,and an electroosmotic coefficient model considering electric field and chemical field is established.The rationality and validity of the model are verified by comparing with the experimental results of the existing literature.Compared with the traditional electroosmosis model,this model has the following characteristics:the derivation of the model is based on the micro-mechanism of electroosmosis,using the N-P equation based on ion migration;the applicable range of salt content is larger,and the calculation error is smaller than that of H-S model;the electric field factors such as cationic current density in capillary and overall conductivity of clay are comprehensively considered.
vacuum preloadingelectroosmotic methodelectroosmotic coefficientsoft foundation treatment
万方数据
维普
