عنوان مقاله [English]
نویسنده [English]چکیده [English]
Grouted rock bolts are one of the most popular systems of support in underground mining and tunneling operations. These can be installed as passive or active pretensioned elements. Passive grouted rock bolts develop load as the rock mass deforms. However, the active types are preloaded before rock mass deformation. In order to improve bolting design, it is necessary to have a good understanding of interaction and behavior of rock bolts in deformed rock mass. This can be acquired through field monitoring, laboratory tests, numerical modeling and analytical studies. Application of the rock-support interaction concepts to the support system such as...