DEFORMATIONS MONITORING OF SUPPORT THE SYRETSKO-PECHERSKA LINE OF KIEV METRO AND MEASURE ON THEIR DIMINISHMENT

Abstract

Purpose. Deformations in time of the water-saturated base of all-section support of driving tunnels of the Syretsko-Pecherska line of Kiev Metro with the purpose of finding out of their reasons and suggestion of measures on their diminution are researched in the article. Methodology. For achievement of the put purpose authors conducted attachment to the engineering and geological cut of support settling, which are got on results monitoring during 8 years. A mining surveyor survey was conducted by a level with conjunctions to the pickets of route. The engineering and geological conditions of bedding of a few problem areas of the Syretsko-Pecherska line of Kiev Metro are analysed. The measures of diminution of the base deformations are developed. Findings. After the monitoring of data analysis, it is found out that settling of the base frequently more than all proceeds uniform without the sharp change of deformations size. The maximal values of deformations of the water-saturated base with conjunction to the geological section are got. Accordance of characteristic intensity of increase of deformations at the change of engineering and geological terms confirms fidelity conjunction of measuring results to the real terms. The graphs of conformities with the law of deformations in time from metro train are built. Originality. Conformities with the law of deformations under action of metro train of various soils are set, including water-saturated. Conjunction to the existing engineering and geological conditions and the high degree of authenticity of approximation testifies to their functional character. Practical value. Measures on diminishment of deformations of the water-saturated base by development of new receptions of building of driving tunnels with all-section support are developed, and also technologies of preparation of the water-saturated base.