Research Article
Disastrous Mechanism of Water Burst by Karst Roof Channel in Rocky Desertification Mining Area in Southwest China
Table 1
Similarity simulation test ratio and parameters.
| | No. | Lithology | Thickness
(cm) | Matching number | Compressive strength (MPa) | Tensile strength (MPa) | Cohesion (MPa) | Density (g/cm3) |
| | 1 | Sand and mudstone | 20 | 655 | 29.9 | 2.31 | 9.91 | 2.770 | | 2 | Limestone | 35 | 437 | 51.4 | 5.70 | 17.12 | 2.800 | | 3 | Sand and mudstone | 30 | 655 | 29.9 | 2.31 | 9.91 | 2.770 | | 4 | 4# Coal | 3 | 773 | 3.9 | 0.28 | 1.23 | 1.461 | | 5 | Sand and mudstone | 32 | 655 | 29.9 | 2.31 | 9.91 | 2.770 |
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