CAJ | 학술논문

在自制的模型箱中对吹填土进行一系列逐级加载电压的一维电渗试验，通过监测电流强度、出流量和电势分布，分析最终含水率、抗剪强度、能耗系数和电渗透系数等指标，研究逐级加载电压对电渗加固吹填土效果的影响。试验结果表明，不同方案的逐级加载电压对吹填土的处理效果有较大区别；相比于连续施加25 V电压的方案，合理的逐级加载电压方案能降低电能消耗，提高电渗排水量以及后期电渗效率，增大阴极附近土体的抗剪强度，使土体加固地更均匀；适当地提高初始加载电压能够显著增加电渗的排水量，但初始电压过高，不仅土体加固效果不明显，而且电压损耗还会更大。
재자제적모형상중대취전토진행일계렬축급가재전압적일유전삼시험，통과감측전류강도、출류량화전세분포，분석최종함수솔、항전강도、능모계수화전삼투계수등지표，연구축급가재전압대전삼가고취전토효과적영향。시험결과표명，불동방안적축급가재전압대취전토적처리효과유교대구별；상비우련속시가25 V전압적방안，합리적축급가재전압방안능강저전능소모，제고전삼배수량이급후기전삼효솔，증대음겁부근토체적항전강도，사토체가고지경균균；괄당지제고초시가재전압능구현저증가전삼적배수량，단초시전압과고，불부토체가고효과불명현，이차전압손모환회경대。
A series of one-dimensional electroosmotic consolidation experiments with the test tank built in-house were carried out on dredger filling. The current intensity,the drainage and the electric potential were monitored. The final water content,the shear strength,the coefficient of electroosmotic permeability,and some other indices were analyzed to investigate the influence of applying stepped voltages on electroosmotic consolidated dredge fillings. Test results showed that different programs of stepped voltage yielded quite different treatment efficiencies for dredge fillings;In comparison to applying 25 V constantly,the technique of stepped voltage reduced energy consumption,improved electroosmotic efficiency at later stage and raised water drainage, enhanced the soil shear strength near the cathode region effectively and reinforced the soil more homogeneous. Appropriately raising the initial voltage increased the water discharge of electroosmosis significantly. Very high initial voltage did not lead to further improvement in soil consolidation,but to more energy consumption.