Fig. 12

Comparison of stress-strain experimental curve and theoretical curve of coal rock under different water content; (a) W = 0%; (b) W = 2%; (c) W = 4%; (d) W = 6%.
Comparison of stress-strain experimental curve and theoretical curve of coal rock under different water content; (a) W = 0%; (b) W = 2%; (c) W = 4%; (d) W = 6%.