Grouting Treatment and Parameters Optimization in Watery Karst Areas of High Speed Railway Tunnel Based on Comprehensive Geological Forecast: A Case Study

<table class="table-group" id="tab3"><tr><td><table class="table"><tr><td class="thead-hr" colspan="7"><hr/></td></tr><tr class="thead"><td class="align_left">Grouting thickness<br/>(m)</td><td class="align_center">0</td><td class="align_center">1</td><td class="align_center">3</td><td class="align_center">5</td><td class="align_center">7</td><td class="align_center">9</td></tr><tr><td class="thead-hr" colspan="7"><hr/></td></tr><tr><td class="align_left">Water surge<br/>(L/(m∙min))</td><td class="align_center">22.14</td><td class="align_center">5.74</td><td class="align_center">2.51</td><td class="align_center">1.71</td><td class="align_center">1.35</td><td class="align_center">1.14</td></tr><tr class="table-tr"><td colspan="7"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>Water surge per meter of tunnel.</div>

Geofluids

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Table 3

Table 3: Grouting Treatment and Parameters Optimization in Watery Karst Areas of High Speed Railway Tunnel Based on Comprehensive Geological Forecast: A Case Study 

Table 3 | Grouting Treatment and Parameters Optimization in Watery Karst Areas of High Speed Railway Tunnel Based on Comprehensive Geological Forecast: A Case Study 