Abstract
The article presents the results of studies relating to compaction of weak water-saturated forest soils and vertical sandy drains under static and seismic effects in the conditions of the Central Asian region. Considering the absence of any experimental and theoretical studies of the application of this parameter, field (in-situ) experimental studies were carried out to identify the possibilities and effectiveness of its use in conditions of weak water-rich loess soils of the Republic of Tajikistan. The article discusses changes in the basic physical and mechanical characteristics of soils and experimental structures. At the experimental site, three plots with a size of 10·10 m were prepared, where the plot was loaded without the installation of vertical sand drains; 3·3 m to a depth of 6.0 m. Static loading of experimental plots by a derivative by layer-by-layer dumping of ground material with measurement of total and layer-by-layer deformations of the packed thickness. Imitation of seismic impact with an intensity of 8 points was carried out using short-delayed explosions of explosive charges. Studies have shown the effectiveness of the use of vertical sandy drains for compaction of weak water-saturated loess soils. Recommendations are given on the use of explosion energy to improve the quality of soil compaction.
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