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Mounted Jet Grouting Borehole Drilling Machine
- 1 Piece / Pieces per Month
- T/T L/C D/P D/A
- 7 days
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Product Details
Brand Name: | chinacoal | Place of Origin: | China |
Product Description
Product Introduction
In some parts of the anchor drilling machine also known as anchor drilling machine, coal roadway bolting is drilling tools in the work. In improving the supporting effect, reduce support costs, speed up into a lane, to reduce traffic, reduce labor intensity, improve the utilization rate of roadway section and so on has the extremely prominent advantages.
The maximum bending stress and strain within the thick YanLiang and beam is inversely proportional to the square of the thickness, the integrated YanLiang more thick, the less the maximum bending stress and strain. At the same time, the strength of the bolt itself also increases the overall shear capacity of the beam.
If arrangement along the roof bolt group, each anchor would crisscross overlap a vertebral compressive stress circle, forming a stop the spread of the rupture zone pressure on the arch, this can stand for the upper broken rock of radial load.
Main Characteristics
1、In bedded rock bolt will lower unstable rock hanging out on the upper solid rock. Tensile anchor suffered from hanging out layers.
2、In no thin layers of solid rock, at ease with anchor rod, anchor the friction between the clamping force can make the level of increase, can prevent the friction along the rock level continue to slide, which will be a number of thin layers by bolt locking into a thick layers.
3、Anchor combination arch principle, in the shape of roadway surrounding rock fracture zone in the installation of prestressed anchor, on both ends of the rod body will form a conical body form distribution of compressive stress.
Contact Us
- Shandong chinacoal group
- Contact nameMike
- Phone86-537-2350961
- AddressNo.69 Huoju Road, New & High Zone,Jining City,Shandong Province,China Yulin,Shaanxi
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