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Driving system problems could include preignition, preadmission, low hammer efficiency, or a cushion that is too soft. If no obvious problems are found, take dynamic measurements to determine if the problem is related to the driving system or to soil behavior. If the pile and driving system are suitably matched, check the driving system operation to make sure it is conforming with the manufacturer’s guidelines. Soil analysis should accurately predict the number of blows required to drive a pile to its planned depth, and if the number of blows is substantially higher than expected, it indicates a problem with either the driving system, the soil, or both.Ĭonfirm that the pile has sufficient drivability and that the driving system is matched to the type of pile. Please check the latest version of the HZ-M brochure (version 2022).Christian Lagereek/Photographer's Choice RF/Getty Images
#Tubular king pile foundation system giken wallap update
Update November 2021: the radius r of the HZ 880M range changed to 30 mm, consequently the section properties slightly changed. It was developed mainly for very hard driving conditions (installation in compact soils) and for structures with restrictions on the height of the system. Update October 2019: the new HZ 630M profile completes the existing range of the already large HZ-M series. This change has no noticeable impact on the resistance of the profiles, but might have one on the shape of the special T-connectors for tie-rods. We updated all the values on our website, in the latest version of the HZ‑M brochure (2020), as well as the AutoCad files. Update February 2019 and January 2020: we modified slightly the radius r between the flange and the web of the profiles HZ 1080MA and above. We use Giken Supercrush Silent Piling technology a further development of the vibrationless piling process, utilising an integral rock auger housed inside a casing. We are the only owners of Supercrush equipment in the UK and the largest in Europe. the milling process of the HZ-M profile has been patented by ArcelorMittal Ivor King own and operate EIGHT silent Giken piling machines, six with Supercrush capability.HZ ®, HZ-M ® and HZ/AZ ® are trademarks from ArcelorMittal.The HZ‑M and their connectors are available in high strength steel grades according to EN 10248, ASTM A572 and ASTM A690. Infill sheet piles shall be exclusively a pair of light AZ sections because they have sufficient flexibility to adapt to the driving tolerances of a combined wall system. The intermediate AZ ® sheet piles have a closing function, retaining earth and water, but they transfer most of the loads to the king piles. crane rails, building foundations, etc, to the ground. as bearing piles, the king piles transfer high vertical loads from the superstructure, i.e.as retaining members, the king piles resist horizontal loads resulting from earth and water pressures,.Structurally, the HZ ®-M king piles fulfill 2 different functions The HZ‑M has been patented by ArcelorMittal. The development of this range was made specifically to match the higer requirements of the deep sea quay wall for JadeWeserPort in Wilhelmshaven, Germany, back in 2008. The key feature of this special sheet pile is the milled groove at the edge of the flanges that allows threading specific hot rolled connectors on it. The HZ ®-M king piles are stiff wide flange beams, with a width of 420 mm or 460 mm, a height up to 1 100 mm, and flange thicknesses up to 40 mm, used in the HZ‑M/AZ combined wall system.