A majority of self drilling anchor system of Sinorock had positive effects on constructions includes mine,tunnel,foundation support project and anchoring performance over four years since established, echoing results from last year in a sample that is nearly three times as large.
Sinorock that deepen and accelerate the versatile ability of self drilling anchor by tailoring instruction to customer's needs, demands and interests about dedicated anchoring subject. Approaches that offer a variety of application of self drilling anchor experiences that prepare operations for suiting various kinds of complicated ground conditions.
Sinorock -self drilling anchor provide the optimal solution for nailing, bolting, micro piling and as ground anchors in difficult ground and rock conditions. The self drilling anchor system is manufactured with a cold deformed full length rolled thread as per standard and acts as the drill rod during the drilling operation. Once installed and grouted it converts into a very effective anchor. The use of this technology has the advantage that there is no need for cased drilling systems, which result in a simple installation method and economical savings on the project.
In the construction process applying the indirect analogy of self drilling anchor bolt, the following requirements should be met:
1) The self drilling anchor bolts should be arranged radially and evenly on the cross-section diagram. The arrangement will look like rectangle or rhombus on the engineering plan.
2) Relating to the direction of the self drilling anchor bolts, they should be perpendicular to the outlines of the tunnel in the whole rock strata while perpendicular to the surface of the rock in the bedded rock so as to the self drilling anchor bolt can function well.
3) The depth of the self drilling anchor bolt eyelet should be consistent with the construction requirement and the anchor bolt used in the project.
4) The rock grains, broken pieces and water should be blown out of the self drilling anchor bolt eyelet to ensure the anchorage quality.