Assertion: broken ore | /r/HasProperty | left in the stope
Facets:
value: as a platform
type: PURPOSE
Source sentences:
text: This method is similar to cut and fill mining with the exception that after being blasted, broken ore is left in the stope where it is used to support the surrounding rock and as a platform from which to work.
text: This method is similar to cut and fill mining with the exception that after being blasted, broken ore is left in the stope where it is used to support the surrounding rock and as a platform from which to work.