Theoretical Study and Experiment Validation on Drilling Cutting Weight during the Whole Process of Drilling

Table 1

The mechanical parameters of coal body in Xinglongzhuang Coal Mine.

UCS (MPa)	Young’s modulus (GPa)	Poisson’s ratio	Internal friction angle	Cohesion (MPa)	Density
19.34	38.62	0.342	23°	1.2	1435.94 kg/m^3