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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 be used rock bolting to stabilize the foundation effectively, which can be applied to kinds of environment, can ensure continuously steady construction, can be high degree of mechanization, low noise and less dust, can reduce the labor intensity of workers, and can be conducive to their health and safety.

Construction process of self drilling hollow anchor bolt is: drill hole, connect grouting machine, grout, install plate and nut.After self drilling bolt drilling holes, self drilling bar needn't to be pulled out. Its special structure makes it combine functions of self drilling bolt and grouting pipe together: it is grouting pipe when grouting; and it is self drilling bolt when slurry is congealed.

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hollowbaranchors
hollowbaranchors
People's Republic of China
The expert of self drilling hollow bar

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:iconsivgur:
sivgur Featured By Owner Aug 17, 2016  Hobbyist Digital Artist
welcome to DeviantArt! ` v `
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