Engineering Characteristics and Application Analysis of Red Sandstone in the Lanzhou Metro

<table class="figure-group"><tr class="fig-image" id="a"><td><object data="https://static.hindawi.com/articles/geofluids/volume-2023/8927005/figures/8927005.fig.0015a.svgz" name="8927005.fig.0015a" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(a) </b>Original sample (100×)</td></tr><tr class="fig-image" id="b"><td><object data="https://static.hindawi.com/articles/geofluids/volume-2023/8927005/figures/8927005.fig.0015b.svgz" name="8927005.fig.0015b" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(b) </b>Original sample (1000×)</td></tr><tr class="fig-image" id="c"><td><object data="https://static.hindawi.com/articles/geofluids/volume-2023/8927005/figures/8927005.fig.0015c.svgz" name="8927005.fig.0015c" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(c) </b>Disintegration sample (100×)</td></tr><tr class="fig-image" id="d"><td><object data="https://static.hindawi.com/articles/geofluids/volume-2023/8927005/figures/8927005.fig.0015d.svgz" name="8927005.fig.0015d" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(d) </b>Disintegration sample (1000×)</td></tr></table>

<div>SEM analysis of red sandstone at Yanbei Road Station.</div>

Geofluids

fig15

Figure 15

Figure 15: Engineering Characteristics and Application Analysis of Red Sandstone in the Lanzhou Metro 