ABSTRACT
Among many geological types, the soft soil foundation has the characteristics of high water content and low shear strength. If the pre-treatment is not well done, the stability of the project will be affected. Therefore, it is necessary to carry out reasonable reinforcement. The dynamic compaction method has the characteristics of simple operation, low cost and obvious treatment effect. Therefore, reinforcement of saturated soft soil foundation by dynamic compaction method. The field monitoring laws of lateral displacement of the foundation after dynamic compaction, the increasing and dissipation regularity of the excess pore water pressure are analyzed and discussed. The improvement effect is verified by static cone penetration test and loading test. The determination methods of effective reinforcement depth after dynamic compaction are put forward. The practice shows that, by field-testing methods, such as static cone penetration test and pore water pressure test, to determine the effective reinforcement depth after dynamic compaction and other relevant design parameters is reliable.
