hollowbaranchors

Rock reinforcement hollow anchor bolt adopts different materials and processing methods to adapt to all kinds of projects. It combines drilling, grouting and anchoring together, which can bond hollow anchor bolt with surrounding stratum and support project tightly. Self drilling hollow anchor system has solved the problems of hole shrinkage and hole collapse caused by drilling in sandy gravel layer, which played a good anchoring effect, achieved a purpose of supporting sandy gravel layer in the slope. It can be extensively applied in other loose rocks and soils. Based on dam construction environment needing grouting and anchoring , it can b

Self drilling bolt is a hollow, thick-walled seamless steel pipe, with standard continuous thread on its surface. It consists of self drilling hollow anchor bar, plate, nut, coupling and drill bit, anchor bar can be cut and lengthened as requirements. With functions of drilling, grouting and anchoring, it can be widely used in broken stratum, sandy gravel, high water-bearing strata, especially for slope supporting in narrow deep foundation pit, without casing, economical and high-efficiency. The self drilling bolt system of Sinorock has become an established tool in the industry for mining.Through innovation we have developed the  simple and

Rock bolts are passive ties; typically classified as lightly loaded, short installations. The Sinorock® Hollow Bar System provides a practical rock bolt that is quick and easy to install through fractured or broken ground. The system is available with a range of harder drill bits for efficient drilling in stronger material. Sinorock® Hollow Bar Anchors can easily be installed on the construction site under confined space conditions using simple and small dimensioned drilling equipment. The Sinorock® Hollow Bar Anchor System offers the following advantages: use of small dimensioned drilling equipment. No predrilling need und