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| High strength bolt full bolting combined with anchor cable reinforcement technol |
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UpdateTime：[2011/8/24 8:56:13] Hits：[7697] From：TONRY MINING SAFETY SUPPORT TECHNOLOGY CO.,LTD
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As mining the continuous development of science and technology, as well as Hui Po bottom coal mining scope unceasing expansion, the original mine support mode has been difficult to meet the safety and production needs, Shandong with the Swiss mining science and technology recommend using high strength bolt full bolting combined with anchor cable reinforcement technique, in order to enhance the safety and reliability of roadway.
Permanent ship lock lined wall due to temperature change of high strength bolt shear stress, so for high strength bolt set up a" free", and the use of anti-corrosion treatment process.
High strength bolt anticorrosive include: rod rust, arc spraying, brushing anticorrosive paint.
Electric arc spraying and brushing anticorrosive paint is the two key processes, with strong technology, operation difficulty is great, rework difficulty, the high strength bolt anticorrosive quality control have important implications.
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