Bolt Continues To Drive Digital Inclusion With Its Call-A-Bolt Service For Non-Smartphone Users In Ghana
Bolt Continues To Drive Digital Inclusion With Its Call-A-Bolt Service For Non-Smartphone Users In Ghana
Source: peacefmonline.com
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"Design and engineering practice of rebar bolt for large deformation ro" by Jun Han, Xin Wang et al.
Rebar rock bolt has been widely used in the mining industry since the 1990's, however, its thread geometric parameters are still the same as those of steel tendon used in civil engineering, which is designed for the steel-concrete structure without ground stress and the deformation of the structure is normally within elastic stage. With the development of deep resource mining, the surrounding rock of the underground roadway has large deformation. The geometric parameters of the rebar bolt designed for the ground building should be optimized for the geological conditions such as high groun...
Source: uow.edu.au