Hollow bar system were used in this permanent application as an alternative to stand anchors. The speed of installation was on deciding factor. Also, in a seismically active region, strand anchors are monitored for relaxation and the anchor head must remain accessible. Restressing is often necessary in these conditions. T73/53 and T103/78 hollow bar tiebacks with an approximate maximum load of 1,500KN and an inclination of 10 degrees were used. The anchors were spaced between 1 and 2m. The bars were protected from corrosion using a corrugated sheath, and the heads were painted with corrosion inhibiting compound.
Excellent hollow anchor bolt system of Sinorock provides the ultimate solution for securing unstable embankments and rocky slopes.The Sinorock’s excellent anchor bolt system ensures a fast and efficient method of application with a superior strength and rigidity that we believe is the best available. Sinorock can now offer advantages of superior durability, improved efficiency and considerable cost savings when compared with products used for similar applications.