When the tunnel is built in the terrain or the surrounding of broken rocks, loose soil layer and difficult to drill, self drilling anchor can integrate drilling, grouting and anchor together without casing pipe and drilling pipe, and then ensure the anchoring effort in the complicated geological condition. It owns the features of convenience, reliability and high- efficiency.
One of the early civil engineering applications of Sinorock prestressing technology was for anchoring structures into the ground and for stabilizing slopes using ground anchors. Since then, Sinorock self drilling ground anchors has evolved significantly and our latest milestone – the ground anchor – has benefitted a wide range of customers. Soil nails, rock bolts and micropiles complete the range.
Sinorock is involved in manufacturing and supplying with the help of huge experience of our experts for qualitative range of SDA bolt. These SDA bolts are made mostly used in mining, tunneling,under ground working environment, these SDA bolts are machine friendly which reduces the time of installation, our SDA bolts are compatible with resin type grouting or cement grouting with many optional accessories like dome plate, plain plate, conical washer, spherical seats, Couplers etc.