Experimental data on the softening of the soil of the base of the experimental pit over time
Abstract
Experimental data on the softening of the soil of the base of the experimental pit over time
Incoming article date: 04.03.2020The article presents experimental data on changes in the stress-strain state of the soil of the base of the experimental pit. The research was carried out in the Moscow region, an extended pit had a depth of 4 meters. The excavation of pit was carried out mainly in clay loams which had various consistencies. During the experiment, the required number of benchmarks, surface grades and pressure sensors was established. The main issues of the in-situ research were to obtain data on the change in the natural stress state as a result of excavation of the foundation pit over time, on the patterns of soil deformation along the depth of the foundation pit and of the sides and, accordingly, on the development of an active zone of redistribution of initial stresses. The results of deformations of the day surface of the foundation pit were obtained and analyzed, the character of the change in deformations along the depth of the foundation pit was studied. As the research had been continued for 2.5 months, the necessary conclusions about the features of the development of the deformation of the foundation pit over time were made.
Keywords: foundation pit, experimental research, patterns of deformation, stress state, active zone