Research Article
Comprehensive Measurement of the Deformation and Failure of Floor Rocks: A Case Study of the Xinglongzhuang Coal Mine
Figure 6
The increment of axial strain and radial strain of the No. 2 hole.
(a) Axial strain measured by gauge a |
(b) Axial strain measured by gauge b |
(c) Radial strain measured by gauge c |
(d) Radial strain measured by gauge d |