ИСПОЛЬЗОВАНИЕ ГРУНТА С СОДЕРЖАНИЕМ РАКУШКИ В ТРАНСПОРТНОМ СТРОИТЕЛЬСТВЕ

Abstract

The article deals with the problem of using soils represented by sand with a significant content of shell in the construction of embankments of railways and highways. The review of literature sources on this topic did not yield any results, which aroused interest in the possibility of using this soil. Research has been carried out to determine the main physical and mechanical properties of shell sand. Data showing the dynamics of changes in the physical and mechanical properties of the soil during compaction are obtained. The dependence of the reduction of partial residues from 10 to 0.1 sieves is revealed. The maximum increase in the partial remainder occurs on the screen 0,1. Obviously, these changes are the result of grinding the soil under the influence of a large mechanical load and are one of the factors reducing filtration in this soil. It is found that the value of the filtration coefficient at the input control is 2.58 m/day., after compaction of the same soil in the body of the embankment, the filtration coefficient fell to-1.51 m/day. Thus, there is a decrease in the filtration coefficient after compaction of the soil by 41.5% in comparison with the input tests of the soil. The need for further research to find technological solutions for the use of such soil on road construction sites is justified.