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| ANALYSES OF ONE DIMENSIONAL ELECTRO-OSMOTIC CONSOLIDATION THEORY AND TEST OF SOFT CLAY
UNDER LINEAR LOAD |
| WANG Jun1 ，FU Hongtao1，CAI Yuanqiang1，ZENG Fangjin2，SHEN Jiaojian2 |
| (1. College of Architecture and Civil Engineering，Wenzhou University，Wenzhou，Zhejiang 325035，China；2. School of Architectural and Mapping，Jiangxi University of Science and Technology，Ganzhou，Jiangxi 341000，China) |
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Abstract Taking into account the interaction between water flows and electrical currents as well as the pore pressure dissipation under the linear load，one dimensional electro-osmotic consolidation equation under linear load was established based on the extending consolidation process of the general seepage equation to the electro-osmotic field. The analytical solutions of the pole pressure and average degree of consolidation were given under two conditions of the cathode opened and anode closed and two poles opened. The effects of the maximum load and loading rate on the dissipation of pore pressure and the effect of supply voltage on theoretical consolidation degree and experimental consolidation degree were investigated by the method of parametric analysis and test analysis. The pore pressure dissipation curves in single and double drainage under different maximum loads and loading rates，and the curves of theoretical consolidation degree and experimental consolidation degree under different supply voltages were drawn. The results show that the greater maximum load and loading rate are，the faster dissipation speed of pore pressure is. At the same time，the effects of maximum load and loading rate on double drainage is greater than that on unilateral drainage. The greater supply voltage is，the higher the growth rate of theoretical consolidation degree and the experimental consolidation degree are，as well as the variable amplitude of theoretical consolidation degree is weaker than the variable amplitude of experimental consolidation degree in the period of time.
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Received: 13 March 2013
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2014, Vol. 33 
