Roof-Breaking Characteristics and Ground Pressure Behavior in Deep Jurassic Coal Seams: A Thick-Plate Model and Field Measurements

Table 1

Judgment criteria for the first weighting in some hydraulic supports.

No.
#8	6765	348	7113	7922	379	8301
#46	6680	290	6970	7694	271	7965
#92	6805	310	7115	7783	289	8072
#120	7150	500	7650	8019	395	8414
#174	6850	230	7080	7894	231	8125

: value of TWR; : standard deviation of TWR; : JCTWR; : mean value of DMR; : standard deviation of DMR; : JCDMR.