Research Article
The Influence of Physical and Chemical Reactions on Water Leakage in a Multiarch Tunnel
Table 2
Differences in the ion contents between the initial solution and dissolution solution.
| Hole number | Statistics | Cation content/(mmol·L−1) | Anion content/(mmol·L−1) | Erosion CO2/(mmol·L−1) | Na+ + K+ | Ca2+ | Mg2+ | | HCO3− | Cl− |
| Hole 1 | Mean value | 0.061 | 0.029 | 0.0818 | −0.0005 | 0.281 | 0.0135 | 0.306 | Mean square error | 0.1259 | 0.0935 | 0.0495 | 0.0491 | 0.2317 | 0.0255 | 0.145 |
| Hole 2 | Mean value | 0.071 | −0.131 | 0.0045 | −0.0117 | −0.127 | 0.0075 | 0.68 | Mean square error | 0.1425 | 0.0685 | 0.0366 | 0.0521 | 0.1564 | 0.0237 | 0.199 |
| Hole 3 | Mean value | 0.066 | −0.006 | −0.0017 | −0.0192 | 0.09 | 0.0085 | 0.304 | Mean square error | 0.1371 | 0.0567 | 0.0354 | 0.045 | 0.1472 | 0.0232 | 0.115 |
| Hole 4 | Mean value | 0.14 | −0.046 | 0.0758 | 0.001 | 0.222 | 0.0075 | 0.623 | Mean square error | 0.2163 | 0.061 | 0.0426 | 0.0541 | 0.1298 | 0.0238 | 0.161 |
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