The 2017 Asia-Pacific’s International Mining Exhibition (AIMEX) came to an end on August 31st，Sinorock sent visitor team to Australia and visited the exhibition.
Brexit has not only brought uncertainty to UK politics, but also affected the country's economic development, the depressed growth rate of construction industry is just a typical example. The economic director of UK Construction Products Association said that UK construction output is slowing, and there are signs predict that the construction industry will facing a tough winter next year. On the contrary, Australia's construction industry has advanced by leaps and bounds among this year, infrastructure, commercial buildings and residential buildings growing savagely, making the Australian Performance of Construction Index (PCI) increased by 4.5 points to 60.5 in July 2017, which represents the highest level in 12 years.
Time is always in a hurry, as time goes by, the 2017 Sinorock quality month activity lasted for two months has come to an end. On August 1st, the 2017 Sinorock quality month summary conference was held at the Luoyang factory.
Product quality is the cornerstone of brand value. Quality reflects the technical content and culture of an enterprise, and represents the credibility and image of an enterprise.
Rock Bolt is one of effective supporting methods to reinforce foundation of civil construction. It relies on bonding strength between soil layer and rock bolt structure to provide bearing capacity. It is widely applied in engineering structures which needs stress to transfer in stable soil body.
The fundamental principle of geotechnical anchoring is to transfer tension of structures or keep self stability of excavation face in stratum, relying on shearing strength of self drilling rock bolt’s surrounding stratum.
As self drilling bolt’s raw material, seamless steel tube’s quality must be completely inspected according to product standard and technical specification. Specific inspection includes steel tube’s chemical component analysis, geometric dimension inspection, surface quality inspection, physical and chemical properties inspection, processing property inspection, metallographic analysis, thread inspection and measurement. The purpose is to ensure quality of steel tube and meet relevant standard code or technical condition requirement.
During tunnel construction, deformation often happens. Observing from tunnel surface, there are cracks, shedding phenomenon or underground water dropping appearing. If reason doesn’t get analyzed and maintained timely, worse deformation will happen.