Research Article
Experimental Study on Overlying Strata Movement Characteristics and Distributed Optical Fiber Characterization of Stope
Table 1
Basic parameter table of 3D physical similarity model.
| Item | Parameter | Item | Parameter |
| Length | 360 cm | Width | 200 cm | Height | 200 cm | Excavation steps | 54 steps | Thickness of coal seam | 10 cm | Single excavation distance | 5 cm | Geometric similarity ratio | 1 : 200 | Excavation time interval | 0.5 h | Similarity ratio of bulk density | 1.56 : 1 | Stress similarity ratio | 380 : 1 |
|
|