BS 227:1995

This British Standard specifies requirements for H-section steel arches for use in underground roadways in mines.

This standard applies to semi-circular and double radiused profile arches and cambered and flat-top arches.

This standard excludes H-section steel arches used in roadway junction structures.

In addition to the definitive requirements, this standard also requires the items detailed in 6.1, 6.2, 7.1 and 7.5 to be documented. For compliance with this standard, both the definitive requirements and the documented items have to be satisfied.

NOTE Dimensions on figures are in millimetres.