【作者】 郑刚；

【导师】 张雷；

【作者基本信息】 同济大学 ， 地质工程， 2006， 硕士

【摘要】 目前,水泥土已经越来越广泛的应用于防水帷幕、截渗墙的施工,但却没有关于水泥土渗透系数测定的试验标准以及渗透系数与水泥掺入量之间的定量关系,本论文将重点解决水泥土渗透试验方法,以及通过对水泥土和加筋水泥土的研究,得出水泥土的渗透系数与水泥掺入量之间的定量关系,并讨论加筋水泥土的渗透系数受纤维掺入量的影响程度。 通过对多组水泥土和加筋水泥土试块进行的抗渗试验以及对试验结果的分析,得出下面的结论: 1.水泥土的渗透试验可以参照粘土进行小试件试验,试验中可以用石蜡进行封样,而且封样效果能够很好的满足试验要求; 2.水泥土的渗透系数明显小于原状淤泥质粘土渗透系数,水泥掺入量为17%时,较原状粘土小一个数量级; 3.水泥的掺入量对水泥土的渗透系数有明显影响,随水泥的掺入量增加而减小: 4.水泥土的渗透系数随着龄期的增加而减小,但随着水泥掺入量的增加减小幅度逐渐减小: 5.水泥土的渗透系数随纤维的掺入量增加而增加,且增加明显。更多还原

【Abstract】 Soil cement has been used in the engineering of water-proof wall more and more widely, but there is no testing standard on testing of anti-permeability, and there is no research on quantitative relation between permeability coefficient of soil cement and content of cement. In this paper, the main question to be solved is the method of permeability testing of soil cement, and finding the quantitative relation between permeability coefficient and cement content, and the relation between permeability of enforcement soil cement and fiber.Through the study on the permeability testing of soil cement and reinforcement soil cement and analysis on the results, the following conclusions can be gotten:First, permeability testing of soil-cement can be well done in accordance with the test of clay, and olefin can be used to seal the sample, and the effect of sample sealed satisfies the testing.Second, permeability coefficient is smaller than that of original silt clay, when the cement content is 17%, permeability coefficient is 10 times less than that of original silt clay.Third, permeability coefficient of soil cement is decreasing with the content of cement.Fourth, permeability coefficient of soil cement is decreasing with age, but the damping is impaired with the increase of cement.Fifth, permeability coefficient is increasing with the content of fiber obviously.更多还原