Report fragment of a crosscut's support inspection

1. Fragment of a report presents the results of an underground roadway (crosscut) inspection. The crosscut has been driven at the depth of 950 m. 2. Two movies demonstrate the results of FLAC3D simulation of U-shape support yielding. The first video shows a normal yielding process. The second movie shows how the normal process of the reciprocal sliding has been disrupted by twisting of the profile.