Sinorock Expansion shell hollow anchor bar

25/set/2015 04:45:31 hollowbar Contatta l'autore

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Expansion shell hollow anchor bar is a unique combination rock bolt system. Through the hollow grouting,the loss of prestressing force and corrosion of the anchor bar can be further avoided. It has high specific strength which is higher than 20% of the steel bars of the same specifications and the expansion shell rock bolt also has light weight for convenient work surface and artificial transportation. Therefore it can be installed rapidly for immediate and safe support.




1.The operation is simple and convenient.


2.The product has active tension. The prestressing force is up to 50KN.


3.The hollow anchor bar can be operated by one person through using general tools.


4.The operator has full control in the installation process and ensure the construction quality.





Hollow anchor bar is generally used to:


1.Anchor support structures for excavations such as sheet pile walls, soldier piles and lagging, drilled piles and slurry walls.


2.Counteract uplift forces in structures subjected to buoyancy and lateral loads.


3.Transfer external forces to the ground; e.g. wind, earthquake.


4.Stabilize eccentrically loaded foundations.


5.Stabilize material excavated slopes.

More information here


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