![]() The modern angled slope may not have been a good addition, because it creates potential for injury to a steepler's landing foot or leg, particularly if the surface is the same hard artificial material used for the running track - instead of dirt or grass. ![]() That slope begins approximately 30cm (11.8 inches) forward of the barrier at which point the water is 70cm (27.5 inches) deep. Modern pits have an upward slope the water is deeper near the barrier and is within 2 cm of ground level at the departure end. ![]() Years ago during the dirt and cinder track era, before uniform steeple specifications were formalized, pits were almost flat and relatively shallow. Rulebook language simply but clearly says "The water jump, including the hurdle, shall be 3.66m in length." However, on-site measurement may reveal a pit too long, possibly because measurement was made from the wrong edge of the barrier. The pit's forward-direction measurement starts from the approach edge of the barrier and ends at the point where the water jump slope reaches the flat surface of the steeple pathway - as illustrated by the drawing above. The barrier is not positioned on the oval running track instead it and the pit are on a separate steeple runway - usually inside the track's inner curb Runners are directed to leave the track and use that runway as they approach their first water jump. The top bar is 3.66m / 12 feet wide - less than a hurdle.ģ. The barrier is fixed it cannot be moved like a hurdle.Ģ. The barrier is similar to the on-track hurdle, with three exceptions:ġ. The steeplechase water jump has two components: a barrier - and a pit which is filled with water for competition. (click here for printer-friendly version) For more information regarding the differences, please read this post.Drawing #1: On-Track Hurdle Drawing #2: Water Jump Drawing #3: Steeple Track Setup No matter it is a dog spike or a screw spike, it will be the best spike, if it is used in the right place. Thirdly, a screw spike can also be used together with a spring washer. Secondly, The production cost of a screw spike is higher than that of a dog spike or dog nail. Raw Material→Wiredrawing→Rod Cutting→Head Forming→Edge Cutting→Thread Rolling→Heating Treatment→Surface Treatment→Final Inspection→Packing→ShipmentĬomparison of dog spikes and screw spikesįirstly, the screw spikes provides more than twice of the holding power than that of the dog spikes. Surface Treatment: Plain (oiled), Bluing, Zinc, HDG, etc To meet the strict bending requirement, special raw material is applied by straightening it without any crack after bending 30 degrees or even more. The two-end-head screw spike is always used with Nabla clip fastening system, especially popular used in Africa. Plain (oiled), Oxide black, Zinc, HDG, wax, bitumen, Dacromet, Sherardizing The common track spikes are the 5/8”*6” and the 9/16”*5-1/2” for smaller rail sections, and they are usually secured in either 200 lb. Spikes with various sizes are provided to meet the different requirements of penetrating length of spikes. The dog spike is used to fasten T-shaped rail road track to wooden ties, which has an L-shaped head and square shank, and the underside of whose head is sloped to fit the top surface of the rail base. Non-standard OEM is available if you provide a drawing or sample. Length: 80mm-165mm or non-standard as requested Among the various railroad spikes, dog spikes and the screw spikes are the most common types. The materials for railroad spikes production can be carbon or stainless steel based on the requirement, and the surface of the spikes can be plain, black, hot dipped galvanized, or sherardized, etc. Rail spikes have various shapes serving for different functions. Railroad spikes are designed to maintain gauge between the running rails and also they are mean to secure the steel rail to the railroad tie. Packing: bulk in carton, then on pallet, or according to customers. ![]()
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