Contact Resistance between Calcareous Sand and Electrodes Based on the Two-Electrode Method

<table class="figure-group"><tr class="fig-image" id="a"><td><object data="https://static.hindawi.com/articles/geofluids/volume-2023/1027533/figures/1027533.fig.004a.svgz" name="1027533.fig.004a" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(a) </b>Electrode spacing: 5 cm</td></tr><tr class="fig-image" id="b"><td><object data="https://static.hindawi.com/articles/geofluids/volume-2023/1027533/figures/1027533.fig.004b.svgz" name="1027533.fig.004b" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(b) </b>Electrode spacing: 10 cm</td></tr><tr class="fig-image" id="c"><td><object data="https://static.hindawi.com/articles/geofluids/volume-2023/1027533/figures/1027533.fig.004c.svgz" name="1027533.fig.004c" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(c) </b>Electrode spacing: 15 cm</td></tr><tr class="fig-image" id="d"><td><object data="https://static.hindawi.com/articles/geofluids/volume-2023/1027533/figures/1027533.fig.004d.svgz" name="1027533.fig.004d" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(d) </b>Electrode spacing: 20 cm</td></tr></table>

<div>Sample boxes with different electrode spacings.</div>

Geofluids

fig4

Figure 4

Figure 4: Contact Resistance between Calcareous Sand and Electrodes Based on the Two-Electrode Method 