ANCHORAGES, ANCHOR BOLTS, BARS (MATERIALS), BOLTS, MINING, ROCK BOLTS, ROOFTRUSSES, ROOFS, SAFETY, SAFETY ENGINEERING, STRUCTURAL MEMBERS
被代替标准
2011-07-27
适用范围
Covers the chemical, mechanical, and dimensional requirements for
roof and rock bolts and accessories. Addressed in this Standard
are double-end threaded, headed, and slotted steel bars; fully
grouted bolts and threaded bars; mechanical anchorage devices
used for point anchorage applications; roof truss systems;
partially grouted deformed bolts; and other frictional anchorage
devices. All of these products represent various designs used
for ground support systems.