Abstract：The vibrofloation method without gravel backfill was thought to be proper only for treatment of medium and coarse sand with less than 10% fine particles. Almost no practical project is concerning vibrofloation without backfill treatment of fine sand. In this paper, a laboratory model test was then held to achieve the related characteristics of the hydraulic fine sand. In this test a reduced scale model was set up, in which pressure gauges were embedded. Based on the test data acquired during and after vibroflotation, the formula of porewater pressure dissipation is established. A series of cone penetration tests (CPT) had been made in the test. The insitu tests of single,double and trivibrofloations were conducted under the guidance of model test. According to analysis of results and insitu test model,vibroflotation has been proved to be satisfactory for the improvement of fine sand.
周健；乔思萨；胡寅；. 非黏性土的振动密实试验研究(英文)[J]. 岩土工程学报, 2003, 25(4): 496-499.
ZHOU Jian, Josias Bizindavyi, HU Yin. Study on densification of the non-cohesive soils. Chinese J. Geot. Eng., 2003, 25(4): 496-499.
