Hollow bar anchor bolt for geotechnical, underground engineering, spiling bolt

 Hollow bar anchor bolt for geotechnical, underground engineering, spiling bolt

Model No.︰-

Brand Name︰-

Country of Origin︰China

Unit Price︰-

Minimum Order︰-

Inquire Now

Product Description

Hollow bar anchor is pull rod that transfer anchored structures or geotechnical loads to a stable formation. Pressure grouting of the anchor bar through the hollow bar body can achieve the purpose of consolidating the broken rock mass, blocking the groundwater and the anti-corrosion of the rod body, and rapidly forming the supporting force to control the stability of the surrounding rock. It is widely used in tunnels, mining, slope stabilization and underground engineering support. Suitable for anchoring some loose geological structures (crushed, sandy and fragile soils). Hollow bar anchors are mainly produced by high-strength seamless pipes.

Price Terms︰ FOB, CFR, CIF

Payment Terms︰ T/T, Sight L/C

Packing︰ Bundle

Lead Time︰ 30days

specifications︰ Type Outer Dia. (mm) Inner Dia. (mm) Ultimate Load (KN) Yield Load (KN) Weight (Kg/m)
R25N 25 14 200 150 2.3
R32L 32 22 260 200 2.8
R32N 32 21 280 230 2.9
R32/18.5 32 18.5 280 230 3.4
R32S 32 17 360 280 3.5
R38N 38 21 500 400 4.8
R38/19 38 19 500 400 5.5
R51L 51 38 550 450 6.0
R51N 51 33 800 630 7.6
T76N 76 49 1600 1200 16.5
T76S 76 45 1900 1500 19.0

Advantages︰ Features and advantages:
1. Hollow design realizes the function of grouting pipe and avoids the loss of mortar caused by the traditional grouting pipe.
2. Grouting is full, and pressure grouting can be realized to improve the quality of the project.
3. Neutrality is good, the mortar can wrap the entire length of the anchor body to avoid rust and achieve long-term support.
4. It is easy to install, and it is convenient to install the plate and nut without machining the thread on site.
The hollow bar anchor has been successfully applied in rock and soil anchoring engineering such as tunnel construction, slope treatment, foundation pit retaining wall and mining, and has achieved good economic benefits

Export Markets︰ Europe, Sourtheast Asia, South America, Oceania

Min Order︰ 20ton

Product Image