Experimental Investigation of Water-Sand Mixed Fluid Initiation and Migration in Filling Fracture Network during Water Inrush

Figure 13

The removable particles washed away from filling fractures network for different conditions. (a) Sample FF6. (b) Sample FF7. (c) Sample FF8. (d) Sample FF9. (e) Sample FF10. (f) Sample FF11. (g) Sample FF12. (h) Sample FF13. (i) Sample FF14.

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