论文部分内容阅读
通过对松嫩平原盐渍土处理前后分别进行常规无侧限抗压试验,分析得出松嫩平原盐渍土无侧限抗压强度与土体中所加物品的类型以及量的多少的关系。同时基于直剪试验的基础上,得出盐渍土抗剪强度参数c、φ值随掺入EN-1固化剂以及石灰的量的关系,再利用FLAC-3D对盐渍土无侧限抗压强度进行了数值模拟,其结果与前期试验值较吻合。最后,文章对盐渍土土改良的机理进行了一定的研究,该研究对松嫩平原地区的苏打型盐渍土工程的设计和施工都具有十分重要的意义。
Through the conventional unconfined compressive tests before and after the saline soil in the Songnen Plain, the unconfined compressive strength of the saline soil in the Songnen Plain and the types of the added materials in the soil are analyzed. . On the basis of the direct shear test, the relationship between the shear strength parameters c and φ of saline soil and the amount of hardener incorporated into EN-1 and the amount of lime was obtained. The compressive strength was numerically simulated, and the result was in good agreement with the experimental data. Finally, the paper makes some research on the mechanism of salinized soil improvement, which is of great significance to the design and construction of soda saline soil project in the Songnen Plains.