中文摘要：

黄土地面的 collapsibility 能直接影响路基的稳定性。因此，怎么采用实际技术措施减少或消除它的倒塌变丑是在在折迭的黄土的基础设计的一个重要内容地区。在辽宁从 Fuxin-Chaoyang 高速公路选择折迭的黄土，作者为与水泥改进黄土进行了一系列测试。在不同的水内容的黄土在改变比例与水泥被混合，为在四个不同治好时期的样品的自由压缩力量被测试，并且在水泥混合比率和治好的时期之中的改进土壤力量的关系被分析。当治好的时期肯定时，黄土的力量与混合比率增加一起增加；当水泥混合比率是 5%-15% 时，增加的范围是相当明显的；当混合比率比 15% 大时，紧张增加的趋势变得慢。当为标本的混合比率肯定时，与治好的时期一起的测试标本增加的紧张增加，紧张在 28 天内显然成长，并且生长率在 28-90 天内是小的，紧张趋于在 90 天的治好的时期稳定。

英文摘要：

The collapsibility of loess ground can directly affect stability of subgrade. Therefore, how to adopt practical technical measures to reduce or eliminate its collapse deformation is an important content in foundation design in collapsible loess zone. Selecting collapsible loess from Fuxin-Chaoyang highway in Liaoning, the au- thors conducted a series of tests for improving loess with cement. The loess in different water content was mixed with the cement in varying proportions, unconfined compression strength for the samples at four different curing periods were tested, and the relationships of improved soil strength among cement mixture ratio and curing periods were analyzed. When the curing periods are certain, the strength of loess increases along with the mixture ratio increases; when the cement mixture ratio is 5%-15% , the scope of increases is quite obvious; when the mixture ratio is greater than 15% , the tendency of intensity increases turns slow. When the mixture ratio for the specimen is certain, the intensity of the test specimen increases along with the curing period increases, the intensity grows obviously in 28 days, and the growth rate is small in 28-90 days, the intensity tends to be steady in the curing period of 90 days.