In:
INTER-NOISE and NOISE-CON Congress and Conference Proceedings, Institute of Noise Control Engineering (INCE), Vol. 265, No. 4 ( 2023-02-01), p. 3391-3396
Abstract:
Building foundation elastic pad is one of the important measures for subway vibration control. In order to understand the subway vibration control effect of elastic pad on superstructure, two identical concrete test blocks were poured on site near a subway line. Taking the real subway
vibration load as the input source strength, the vibration isolation effect of elastic pad on upper concrete mass block was compared and analyzed; At the same time, the influence of the backfill around the underground foundation of the building on the vibration isolation effect is simulated and analyzed. The backfill has a non negligible restraint effect on the building, improves the vertical natural frequency of the "building elastic pad" system, and then reduces the vibration isolation effect of the elastic pad. Therefore, it is very necessary to lay the elastic pad
on the side wall around the building to reduce the lateral restraint effect of the backfill.
Type of Medium:
Online Resource
ISSN:
0736-2935
DOI:
10.3397/IN_2022_0482
Language:
English
Publisher:
Institute of Noise Control Engineering (INCE)
Publication Date:
2023
