CAJ | 학술논문

真空预压联合电动法对软土的加固具有较好的效果，对其电学性质变化的研究有助于优化相关参数，对加固效果进行评估。通过三组对照实验，比较了真空预压联合电渗法加固软土实验及真空预压联合电动法加固软土实验的区别，并探讨注入CaCl2溶液的方式及实验时间对实验效果的影响。实验结果表明：加入CaCl2溶液后能够提高土体中的电流大小，提高土体的电导率，降低电极与土体间界面电阻的现象，增加排水速率，降低能耗，从而提高加固效率；注入溶液方式对实验效果影响较大，适量提高单次注入溶液的剂量可以加速排水过程；选择合适的时长及溶液注入方式可以有效的控制能耗及提高效率。
진공예압연합전동법대연토적가고구유교호적효과，대기전학성질변화적연구유조우우화상관삼수，대가고효과진행평고。통과삼조대조실험，비교료진공예압연합전삼법가고연토실험급진공예압연합전동법가고연토실험적구별，병탐토주입CaCl2용액적방식급실험시간대실험효과적영향。실험결과표명：가입CaCl2용액후능구제고토체중적전류대소，제고토체적전도솔，강저전겁여토체간계면전조적현상，증가배수속솔，강저능모，종이제고가고효솔；주입용액방식대실험효과영향교대，괄량제고단차주입용액적제량가이가속배수과정；선택합괄적시장급용액주입방식가이유효적공제능모급제고효솔。
Electrokinetics in combination with vacuum preloading has obtained good effect on consolida-tion of soft soil.Experimental studies on changes in electrical properties are conductive to optimize pa-rameters and evaluate the effects of consolidation.Three control experiments are conducted to compare the effectiveness of vacuum preloading combined electro-osmotic strengthening and vacuum preloading combined electrokinetics strengthening,as well as investigating the effect of CaCl2 injection at different time on experimental effects.The experimental results demonstrate that CaCl2 injection can increase the current in soil,improve soil conductivity,lower the resistance between electrodes and interface,improve the drainage rate and decrease energy consumption,thereby improving the consolidation effectiveness. The injection way plays a significant role on experimental effect.Appropriately adding a single injection dose can accelerate drainage and choosing the appropriate time period and injection method can effective-ly control energy consumption and increase efficiency.