中文摘要：

针对温州软土黏粒含量高、压缩性大、抗剪强度低的特点，提出间歇式真空预压联合电渗的新思路，介绍了该方法的基本原理。采用自制玻璃模型桶，通过室内模型试验对吹填软土加固过程中的出流量、真空度、电流、温度以及试验后土体的抗剪强度、含水率、黏粒含量等进行监测。试验结果表明：单独进行真空预压处理时，后期效果不理想且耗能较多，采用以电渗为主的真空预压联合停泵电渗方法更为高效；间歇通电方式可以降低试验末期电流的衰减速率，保证了电渗阶段的排水效率不致下降过大；应尽量减小电渗阴极和排水板之间的间隙，该间隙过大易造成土体处理的不均匀性；处理后的土体黏粒含量明显下降，这有利于降低土体流变性、增强稳定性。

英文摘要：

In view of the characteristics of high clay content, large compressibility and low shear strength for Wenzhou soft clay, a new idea of intermittent vacuum preloading-electroosmosis was proposed, and the basic principle of this method was introduced. The laboratory model tests were conducted in self-made glass bucket model, and the volume of drainage, vacuum degree, current, temperature and the after-test shear strength, moisture content and percentage of clay particle, etc. in the reinforcement process for dredger soft clay were monitored. The results show that the effect at the late stage is not ideal and it costs more energy during the vacuum preloading treatment alone, while the method of vacuum preloading-electroosmosis without pumping which mainly focuses on electroosmosis is more efficient. In addition, the attenuation rate of the current can be reduced at the end of the test by intermittent current method, which ensures that the drainage efficiency does not drop too much in the stage of electroosmosis. The electroosmosis gaps between cathode and drainage plate should be reduced to the greatest extent, and oversize gaps can easily cause soil to be more inhomogeneous in soil treatment. The clay particle content of the soil decreases obviously after treatment and increase its stability. which is beneficial to reduce the rheology of soil and increase its stability.