Experimental Study on Shield Tunneling Control in Full Section Water-Rich Sand Layer of Collapsible Loess

<table class="figure-group"><tr class="fig-image" id="a"><td><object data="https://static-preview.hindawi.com/articles/geofluids/volume-2022/9125283/figures/9125283.fig.007a.svgz" name="9125283.fig.007a" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(a) </b>Before the improvement</td></tr><tr class="fig-image" id="b"><td><object data="https://static-preview.hindawi.com/articles/geofluids/volume-2022/9125283/figures/9125283.fig.007b.svgz" name="9125283.fig.007b" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(b) </b>After the improvement</td></tr></table>

<div>The improvement effect of the ballast soil.</div>

Geofluids

fig7

Figure 7

Figure 7: Experimental Study on Shield Tunneling Control in Full Section Water-Rich Sand Layer of Collapsible Loess 