Self-Designed Hydrophilicity-Related Geomaterials and Their Testing Utility in Simulation of Overlying Strata Instability

Table 6

On-site borehole survey data of working face.

Drilling number	Distance from coal seam to aquifer	Coal seam thickness	Caving zone height (m)	Height of the water-guiding fissure zone	Thickness of protective layer
K6-3	304.04	16.15	64.4	160.39	4.03
X7-2	322.05	17.89	71.56	177.12	10.13
X7-3	298.58	9.5	38	96.45	52.39