METHOD FOR QUALITY ASSESSMENT OF LAYER-BY-LAYER COMPACTION OF ERECTED EARTH FILLS OF HIGHWAYS, RAILWAYS AND DAMS OF HYDRAULIC ENGINEERING STRUCTURES

摘要

FIELD: construction.;SUBSTANCE: static, dynamic or vibration sensing is carried out preliminary at the selected points to the depth from 1 m with respect to the top of the earth fill. At the same time the samples of compacted soil of undisturbed structure are selected in order to determine the moisture and density of skeleton of the specified soil from several drilled wells at points at a distance of not more than 1 metre in plan from sensing points. Laboratory researches of standard compaction with definition of compacting factor depending on the density of soil skeleton, are carried out on the selected samples of soils from the body of compacted fill. Construction of correlation dependence is performed between the specified values of compaction factor and values of the resistance to penetration of standard cone into the soil during sensing, taking into account determinations previously performed in the laboratory followed by evaluation of compaction quality of the earth fill.;EFFECT: improving the accuracy of definition and identifying the areas of non-compacted soil for its subsequent local postcompaction.;3 cl