The mechanism of bolt support includes arch reinforcement, suspension, composite beam, surrounding rock reinforcement and span reduction. Bolt support is a kind of reinforcement and support method used in surface engineering such as slope, rock and soil deep foundation pit and underground cavity con

R thread Self Drilling Anchor BarsHollow anchor bar is the body of a self-drilling anchor, as a hollow steel tube with an outer round thread, hollow anchor has the sacrificial anchor bit connected at one side, plate and nut connected at the other; two hollow anchor bars could be connected together v

Self-Drilling Anchors (SDAs) are hollow rockbolts which serve as both the drill string during drilling of a support hole, and as the support tendon once grouted into place. A single use drill bit, selected to suit the ground condition, is fitted to the leading end of the SDA with a plate and nut fit

With the continuous development of global trade, LiaWith the continuous development of global trade, Liaong has emerged as a significant Shandong has emerged as a significant base for steel pipe production and export worldwide, attracting the attention of numerous international buyers. Recently, a b

Hollow anchor rodAnchor rod refers to a slender rod that penetrates deep into the rock and soil and controls the deformation of the rock and soil. It may include pads, nuts and other parts. As a tensile member that penetrates deep into the stratum, the anchor rod is connected to the engineering stru