Application Building Material Length 1-6m Hollow Anchor Bar Made In
China
The bolt body of the hollow bolt adopts a hollow design, and the
hole in the rod body is used as the drilling high-pressure
air-water channel and grouting channel. Compared with the solid rod
body, the hollow rod body design can obtain better rigidity and
shear strength. The outer surface of the bolt has a standard
large-pitch thread structure. The thread structure is convenient
for cutting and connecting the bolt. Compared with the smooth rod
body, the bonding area between the bolt body and the grouting
material is increased, thereby improving the anchoring force.
structure
It is composed of steel expanding shell anchor head, hollow
grouting bolt body, grouting stopper, backing plate and nut.
The bolt is the most basic component of roadway support in
contemporary coal mines. It reinforces the surrounding rock of the
roadway, so that the surrounding rock supports itself. Bolts are
not only used in mines, but also in engineering technology to
reinforce the main body of slopes, tunnels and dams. The bolt is a
tension member that goes deep into the stratum. One end of the bolt
is connected to the engineering structure, and the other end is
deep into the stratum. The whole bolt is divided into a free
section and an anchoring section. area, whose function is to
prestress the bolt.
effect
1. Anchor is a bar system for rock and soil reinforcement.
2. Through the longitudinal tensile force of the bolt body, it
overcomes the disadvantage that the tensile capacity of the rock
and soil mass is far lower than the compressive capacity.
3. On the surface, it limits the separation of the rock and soil
mass from the original body.
4. Macroscopically, it increases the cohesion of rock and soil.
5. From the point of view of mechanics, it mainly improves the
cohesion C and the internal friction angle φ of the surrounding
rock mass.
6. In essence, the bolt is located in the rock and soil to form a
new complex with the rock and soil. The bolts in this complex are
the key to solving the low tensile capacity of the rock mass.
Therefore, the bearing capacity of the rock mass itself is greatly
enhanced.
8. The bolt is the most basic component of roadway support in
contemporary underground mining mines. It binds the surrounding
rock of the roadway together, so that the surrounding rock supports
itself.
9. Bolts are not only used in mines, but also in engineering
technology to actively reinforce slopes, tunnels, dams, etc.
| Application | Construction, building material, Bridging ;
ship building,fence,heating facilities,airport structures;
chemical structures,traffic,electricity, etc |
| Technique: | Hot rolled / extruded,ERW,High-frequency welded |
| Surface: | Black, anti-rust,oiled,galvanized,painted
Or as customers' requirements |
| Pipe end: | Plain end; beveled end; Protected by plastic pipe cap |
Payment Terms | T/T, LC, Western Union, Paypal, O/A, DP |
