Sinorock designed and manufactured a simple and effective solution to eliminate injuries and danger from falling roof mounts that tunnelling&mining.Since then the company has grown into one of the largest and reputed companies in the kingdom of soil nails. Sinorock Company is now a major contributor in the construction and engineering industries. For providing better soil nails for widely construction,we has established a strict control system for our soil nails. Sinorock operate Quality Systems to the requirements of ISO 9001:2008; we have test centres across the world ensuring we meet international and client specific standards. At Sinorock,we are proud of our quality program and the reputation that it has brought us.Our commitment to quality products is reflected in the in-house testing laboratory used to mechanically test anchor bolts for tensile and proof strength. Tests performed can include: Ultimate tests (sacrificial) where nails are tested until failure occurs. Proof tests can be performed on sacrificial or production nails. Creep tests are generally conducted during proof or sacrificial testing. Acceptance criteria should be based on allowable movements of the wall over its life span. Since hollow bar nails are fully grouted, it is necessary to establish the influence of the wedge zone bond on the total load. This will determine a more accurate assessment of the test load in relation to bond length. Test load is measured with a pressure gauge incorporated in the hydraulic jacking system. Nail movement is recorded by a dial gauge mounted on an independent stand. http://sinorocksoilnailing.webs.com/ |