Research Article
Deformation Mechanism and Control Technology of Surrounding Rock in the Deep-Buried Large-Span Chamber
Table 2
Mineral composition of surrounding rock of chambers.
| | Mineral name | Quartz (SiO2) | Pearl stone (Mg3Si2O5(OH)4) | Kaolinite (Al2Si2O5(OH)4) | Serpentine (Al2Si2O5(OH)4) | Montmorillonite (Na0.3Al4Si6 O15(OH)64H2O) |
| | Mineral content | 7.5% | 5.2% | 79.4% | 3.7% | 4.5% |
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