High Strength Material Threaded Anchor Rock Bolt Structural features: the full length of the rod body has the same strength as the full length of the rolled continuous thread; The fastening end is provided with a prestressed gasket and a ball-shaped nut.
The application of rebar steel bolt to the surrounding rock support of mine roadway and underground engineering can ensure the stability of mine roadway and underground engineering surrounding rock. The advantages of simple operation and low price are widely used in coal mine, railway, hydropower and other projects.
1. The anchoring end and fastening end do not need machining;
2. High utilization rate of full-length equal strength materials;
3. Large anchoring force;
4. With prestressed gasket easy to control the installation quality;
5. The installation speed is fast. It is a new type of bolt with material saving, labor saving and equal strength.
Intensity:
The High Strength Material Threaded Anchor Rock Bolt is usually higher, the general tensile strength is between 1000MPa and 1500MPa, and the yield strength is between 800MPa and 1100MPa.
The elongation and elastic modulus of high strength bolt are also important performance indexes. The elongation is generally between 7% and 15%, while the modulus of elasticity is between 200GPa and 210GPa.
These high strength indexes ensure that the anchor can maintain sufficient rigidity and stability when bearing the load, and effectively prevent the deformation and damage of surrounding rock.
In short, high-strength bolt provides an important guarantee for the stability of roadway or tunnel through its excellent supporting function, suitable rod material and high strength index. When selecting and using high-strength bolt, it is necessary to make reasonable selection and design according to the specific engineering environment and demand.
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