In order to explore the strength, water stability, compressibility, shear properties of cement stabilized silt, the one-dimensional consolidation tests, direct shear and unconfined compression tests were conducted on cement solidified silt. In addition, the microscopic characteristics of cement stabilized silt were investigated by using scanning electron microscope (SEM) and X-ray diffraction (XRD) tests. The unconfined compression tests showed that the unconfined compressive strength (UCS) raised with cement dosage increasing, and first increased rapidly and then raised slowly with the prolongation of curing time. As curing time prolonged, the water stability coefficient (K>_r) of 2% cement stabilized silt raised significantly, while the K_r of 4% and 6% cement stabilized silt almost hardly changed. As cement dosage increased, at 7 days of curing age, the compressive modulus of cement stabilized silt raised. However, at 28 and 90 days of curing, the compressive modulus first raised and then reduced. As curing time increased, the compressive modulus increased at first and then deceased slightly. The direct shear tests demonstrated that the internal friction angle of cement solidified silt was almost unchanged with increasing cement dosage, but the internal friction angle increased slightly with the prolongation of curing time. For 2% and 4% cement stabilized silt, the cohesion raised with the prolongation of curing time. Meanwhile, the cohesion of 6% cement solidified silt at 7 days was slightly larger that of 28 days. Besides, the SEM and XRD analysis indicated that the loose structure of silt was improved due to cement addition.

为了研究水泥稳定粉土的强度，水稳定性，可压缩性，剪切性能，对水泥固化粉土进行了一维固结试验，直接剪切和无侧限压缩试验。此外，通过使用扫描电子显微镜（SEM）和X射线衍射（XRD）测试，研究了水泥稳定粉土的微观特性。无边压缩试验表明，随着水泥用量的增加，无边抗压强度（UCS）升高，随着养护时间的延长，先增加后缓慢增加。随着固化时间的延长，2％水泥稳定粉砂的水稳定性系数（K > _r）显着提高，而K _r水泥稳定的4％和6％的淤泥几乎不变。随着水泥用量的增加，在养护龄期7天时，水泥稳定粉砂的压缩模量增加。但是，在固化28天和90天时，压缩模量先升高然后降低。随着固化时间的增加，压缩模量首先增加，然后略微下降。直接剪切试验表明，水泥固结淤泥的内摩擦角随水泥用量的增加而几乎没有变化，但随着养护时间的延长，内摩擦角略有增加。对于2％和4％的水泥稳定粉土，内聚力随固化时间的延长而增加。同时，6％水泥固化淤泥在7天时的内聚力比28天时稍大。除了，