Electrical conductivity and uniaxial shear tests on soil samples

International Journal of Physical Sciences

Tekin Yeken¹ 

关键词: Soil investigation;    electrical resistivity;    potential difference;    uniaxial stress;    conductivity;    deformation.;   

DOI  :  10.5897/IJPS2015.4296

学科分类：物理（综合）

来源: Academic Journals

【 摘 要 】

Soil properties should be well known for the earthquake-resistant structural design studies and other engineering researches. It is aimed to understand the region's soil-structure properties as a result of the practices carried out to determine the mechanical properties and elastic-dynamic character of the units under load. Accordingly, considering the factors that affect the physical and mechanical properties such as mineralogical and petrographic structures, water content, porosity-permeability, chemical composition, texture, and clay-mineral content of the rocks play an important role. Therefore, the data regarding the load-bearing capacity of the ground, seismicity and active tectonics are required for analyzing the study area. In this study, mechanical loading-shear and electrical-resistivity tests were applied simultaneously to the soil samples taken from a seismo-active area in Kocaeli to determine the relationship between these properties. Determination of the electrical resistivity response during the deformation of the material constituted the purpose of this experimental study. Elastic-dynamic parameters were investigated using the relative relationships in terms of physical and mechanical parameters in order to understand the behavior of the sample. The result of experimental study indicated that current increased linearly with the stress before deformation. Similar relationships have been observed for the self-potential parameters and stress. In experiments; sample rate is defined as the axial length of the 1.5 to 2.0% contraction critical threshold. This proportional relationship can be considered in earthquake prediction observation.

【 授权许可】

CC BY