Square Shaft Helical Piers Underpinning Bridge Foundation

Product Description  helical piers/ helical piles/ screw piles   brief introduction and application Helical anchors are used for new construction and to support existing structures. They are designed for applications in expansive soils, high water tables, fill areas, and other areas where unstable soils require a deep foundation. In compression they are used as footers and in tension they may be used to support retaining or foundation walls. Helical piers are round or square, tubular or bar steel shafts with round helix plates welded to them. Square Bar shaft helical piers / helical piles/ screw piles 1. Bar Material: 40Cr or 45# steel, round corner 5mm radius. 2. Helix Plate material conforms to ASTM A36 hot rolled plate . 3. Helices thickness are available in 3/8” and 1/2” inch. 4. All helix leading edges sharpened and rock cut and 45 degrees. 5. Corrosion protection to conform to ASTM A153 standard for hot dipped zinc coating. 6. A better conventional solid steel extra high strength helical screw pile 7. Welded coupling for greater strength. Eliminates shaft heat damage caused by upset coupling process. Specification Size Lead Length Helix Size(inch) Extension length(ft) 1-1/2” 3ft/5ft/7ft 8/10/12/14/ 3ft/5ft/7ft/10ft 1-3/4” 3ft/5ft/7ft 8/10/12/14/ 3ft/5ft/7ft/10ft 2” 3ft/5ft/7ft/10ft 8/10/12/15 3ft/5ft/7ft/10ft Other sizes are available upon request. Square Tubular shaft pelical Piers / helical piles/ screw piles 1. Available in 2”, 2.5”, 3” or 4” square tube. 2. Helices thickness are available in 3/8”and 1/2”inch. 3. Helices material conforms to ASTM A36 hot rolled plate. 4. All helix leading edges sharpened and rock cut and 45 degrees. 5. Corrosion protection to conform to ASTM A153 standard for hot dipped zinc coating. 6. Square Tube eliminated over torquing concerns associated with pipe style helicals 7. Efficient torque transfer. 8. Clear visual indicator of torsional deflection. Specifications Size Tube Thickness(inch) Lead Length(ft) Helix Size(inch) Extension Length(ft) 2” 5/16’’ 3ft/5ft/7ft 8/10/12/14 3ft/5ft/7ft/10ft 2.5’’ 5/16’’ or 3/8’’ 3ft/5ft/7ft 8/10/12/14 3ft/5ft/7ft/10ft 3’’ 5/16’’ or 3/8’’ 3ft/5ft/7ft/10ft 8/10/12/14 3ft/5ft/7ft/10ft 4’’ 5/16’’or3/8’’or7/16’’ 3ft/5ft/7ft/10ft 8/10/12/14 3ft/5ft/7ft/10ft Other sizes are available upon request. Other Applications 1. Moorings & Bridges 2. Communications & Transmission Towers 3. Rail and highways 4. Wind Power 5. Oil & Gas Industries Packaging & Shipping  Pakaging and Shipping: 1. Packaging: Usually we shipping the products in 20ft’ container, or according to your demand. 2. Shipping: 15-30 days after confirming your order.   FAQ FAQ: 1. Are your products the same with the ones in our local market? Yes, we produce according to FHWA and ATSSA standard, we manufactured millions of square sign posts and U channel posts for North American market during the past ten years and very familiar with every detail of these products. We believe that there is no company in China is more professional than us on this product. 2. What is the minimum order quantity? The MOQ for square sign post is 11000lbs for each size, for u channel post is 22000lbs for each size. You can mix different sizes of posts to make up a full container. If you want to know the MOQ for other products, please feel free to contact us.  3. How long is your lead time? Usually our production time for one container goods is about 30-40 days, and the shipping time depends on your place of delivery. 4. What is your payment term? Usually our payment term is T/T. We can receive the payment 1-3 days after you made payment. 5. Is it complicated to purchase your products if we have never imported? The whole process is very simple. We can take charge of the whole process including producing in China and shipping the products directly to your company. Our shipping agent in USA/Canada can deal with the customs clearance and inland transportation affairs for you. You just need to stay in your office to check our products. Our Services Our service: 1. Professional staffs reply your inquiry in 24 working hours. 2. Professional factory: We are manufacturer, professional engineers and staffs are specialized in producing all kinds of traffic safety products for more than 10 years. 3. Door-To-Door service is available, you just need to check the products in your warehouse. 4. OEM and ODM service are available here. 5. Competitive pricing, good quality and timely service. 6. Sample: Available Product Show    Product Show: Other Products  our company have