Assertion: trench's wall | /r/HasProperty | supported by rock bolts
Facets:
value: adequately
type: DEGREE
Source sentences:
text: (2) Where the walls or crests of an excavation or trench are cut in solid rock and are not stable, an employer shall ensure that the walls and crests are adequately supported by rock bolts, wire mesh, shoring or a method that provides equivalent support.