Research Article
Identifying Effective Rock-Breaking Ratio Based on Rock Chip Information for Rock-Breaking Efficiency Evaluation of TBM
Table 3
Surrounding rock information of Wananxi water diversion project.
| | Formation | Lithology | Color | Hardness | Weathering resistance | Integrity | Figure |
| | Early Yanshanian (γ52(3)c) | Granite | Gray-black | Hard | Strong | Good | | | Early Yanshanian (γδ52(3)b) | Diorite | Gray-white | Hard | Strong | Good | | | Sedimentary basin (D3ta) | Quartz sandy conglomerate | Gray-white and yellow-white | Hard | Strong | Good | |
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