A Numerical Investigation on the Hydraulic Fracturing Effect of Water Inrush during Tunnel Excavation

<table class="figure-group"><tr class="fig-image" id="a"><td><object data="https://static-preview.hindawi.com/articles/geofluids/volume-2020/6196327/figures/6196327.fig.004a.svgz" name="6196327.fig.004a" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td>(a) Crack initiation stage</td></tr><tr class="fig-image" id="b"><td><object data="https://static-preview.hindawi.com/articles/geofluids/volume-2020/6196327/figures/6196327.fig.004b.svgz" name="6196327.fig.004b" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td>(b) Crack propagation stage (Step 2-2)</td></tr><tr class="fig-image" id="c"><td><object data="https://static-preview.hindawi.com/articles/geofluids/volume-2020/6196327/figures/6196327.fig.004c.svgz" name="6196327.fig.004c" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td>(c) Crack propagation stage (Step 2-11)</td></tr><tr class="fig-image" id="d"><td><object data="https://static-preview.hindawi.com/articles/geofluids/volume-2020/6196327/figures/6196327.fig.004d.svgz" name="6196327.fig.004d" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td>(d) Crack propagation stage (Step 2-21)</td></tr><tr class="fig-image" id="e"><td><object data="https://static-preview.hindawi.com/articles/geofluids/volume-2020/6196327/figures/6196327.fig.004e.svgz" name="6196327.fig.004e" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td>(e) Crack penetration stage</td></tr></table>

Geofluids

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Figure 4

Figure 4: A Numerical Investigation on the Hydraulic Fracturing Effect of Water Inrush during Tunnel Excavation 