Sensors, Vol. 20, Pages 5241: Structural Monitoring of Underground Structures in Multi-Layer Media by Dynamic Methods

Sensors, Vol. 20, Pages 5241: Structural Monitoring of Underground Structures in Multi-Layer Media by Dynamic Methods
Sensors doi: 10.3390/s20185241
Authors:
Alexandr Lyapin
Alexey Beskopylny
Besarion Meskhi

The actual problem of structural monitoring and modeling of dynamic response from buried building is considered in the framework of arbitrary dynamic load. The results can be used for designing underground transport constructions, crossings, buried reservoirs and foundations. In existing methods, the system of sensors that register the response to a dynamic action does not allow for effective interpretation of the signal without understanding the dynamic features and resonance phenomena. The analytical and numerical solution of the problem of the dynamics of a buried object in a layered medium is considered. A multilayer half-space is a set of rigidly interconnected layers characterized by elastic properties. At a distance, an arbitrary dynamic load acts on the half-space, which causes oscillations in the embedded structure, and the sensor system registers the response. The problem of assessing the dynamic stress-strain state (DSSS) is solved using Fourier transforms with the principle of limiting absorption. As an example, the behavior of an embedded massive structure of an underground pedestrian crossing under the influence of a dynamic surface source on a multilayer medium is considered, as well as instrumental support of the sensor system. The solution in ...

Source: Sensors - September 13, 2020 Category: Biotechnology Authors: Alexandr Lyapin Alexey Beskopylny Besarion Meskhi Tags: Article Source Type: research