Investigation of the Effects of Waste Tire, Water Content and Relative Density on Soil Dominant Frequency in Separate Grained Soils by Microtremor Method

Abstract

This paper presents the effects of the waste tire, water content, and relative density on soil dominant frequency using the experimental application. In this study, metal cylindrical molds with a diameter of 30 cm and a height of 50 cm are prepared to understand the effects of these materials. These molds are filled with sand in different relative densities (60% and 80%). Also; the samples are prepared by adding waste tire particles at different rates (0%, 0.5%, 1%, 2%) to this sand for different relative densities and water contents (0%, 5%, 10%, 15%). The soil dominant frequency and H/V amplitude are determined with the microtremor technique by measuring at 60 minutes of measurement on each cylinder using a broadband seismometer. Microtremor data are analyzed by using the Horizontal/Vertical spectral ratio method. As a result of the experiments, it has been observed that the waste tire particles added to the sand affect the H/V amplitude in a decreasing way. It is detected that the most suitable environment is obtained to be 1% waste tire and 0% water content for 60% relative density. Moreover, the most suitable environment has been achieved in 0% water content and 0.5% waste tire ratio for 80% relative density. It has been concluded that the prepared composite material with waste tires may have positive effects on decreasing the earthquake devastating effects.