Power Utility Application Steel Structure Screw Anchor Hub Helical Piles

• Standard: ANSI, GB, JIS
• Material: Low Carbon Steel
• Connection: Welding
• Shipping Cost: Estimated freight per unit.: about shipping cost and estimated delivery time.
• Currency: US$
• Return&refunds: You can apply for a refund up to 30 days after receipt of the products.
• Model NO.: MONO 468
• Surface Treatment: Galvanized Sheet
• Head Type: Round
• Steel Grade: 80 Grade
• MOQ: 500 PCS
• Application: as Deep Foundation
• Quality Control: 100% Inspection
• Service: ODM OEM
• Delivery Time: 30~40 Days
• Transportation: Container by Sea
• Transport Package: Pallet
• Specification: customised
• Origin: China
• HS Code: 73082000
• Production Capacity: 100, 000 Ton Per Year
• Package Size: 58.00cm * 23.00cm * 23.00cm
• Package Gross Weight: 100.000kg

Product Description

A complete Power Shaft Assembly consists of a lead helix section, extension(s) and guy termination other attachment.  The helix size (diameter) and number of helices are selected for the required holding strength.  The shaft size and rating is selected based on the necessary holding strength and installation torque requirement.  The guy attachment is chosen based on the number of guys

Helical piles (also called helical piers, helical anchor, screw piles, earth screws, etc.) are a versatile, fast, durable and cost- effective deep foundation technology. 

Helical pile foundations are segmented deep foundation systems with helical bearing plates welded to a central round or square steel shaft. The load of a structure is transferred from the shaft to the soil through these bearing plates. The concept is founded on the principle of turning a screw into stable subsoil strata until the torque applied indicates that the necessary load capacity has been achieved.  Helical piles work for both compression and tension loads.

The first piece of the helical pile is called the lead; this is the piece that is first rotated into the ground. The lead has multiple helical blades, also referred to as helical bearing plates, that can vary in size, shape, and number. After the lead follows any number of extensions, depending on the required torque or depth. These are simply shafts that are bolted and pinned to the lead and to each other at their ends. The top of the pile is the incorporated into the foundation system via a bracket or other connection method.

Extensions with helix are placed directly after the lead section (no bare extensions in between). They are used when additional bearing area is needed and to develop increased installation torque.

Specifications:

DIAMETER SHAFT-  3/4″, 1/2",3/4",5/8" etc.
LENGTH-  36 INCHES etc.
Eye- 1.5″ Diameter LOOP IS WELDED CLOSED
HELICAL DISC SIZES- 4 INCH AND 6 INCH
FINISH - HDG (HOT DIP GALVANIZED)
PULL OUT RESISTANCE- UP TO 4000 LBS (HARD PAN SOIL)
Screw in Ground Anchor 3/4" x 36" w/ 4" & 6" Helices Galvanized
4″ LEAD HELIX HELPS EASE THE INSTALLATION OF THE LARGER 6″ HELIX
HOT DIP GALVANIZED TO: ASTM SPECIFICATION A123 IDEAL FOR CORROSIVE ENVIRONMENT OR LONG DURATION INSTALLATIONS
RE-USEABLE - CAN BE UNSCREWED AND REINSTALLED

Hot Dip Galvanized per ASTM A123.


Consists of solid square shafts, ranging from 1.5″ to 2″. The piles are typically used for ultimate loads between 100 and 650 kN (25-150 kips) but have been tested to loads in excess of 900 kN (200 kips) in unique situations.
Square shaft products are generally used in small to moderate loading applications, and they provide excellent tension resistance. Square shaft piles are able to penetrate dense and cobble-rich soil when compared to their helical pipe pile equivalents, but they have lower resistance to buckling and negligible lateral load resistance.
In applications where tension is the primary consideration, we recommend the Square Shaft Piers. They have several advantages over the typical square shaft anchors.


Square Shaft Advantages:
•    Greater yield and Tensile strength
•    Patented Cross-bolt Connection
•    Increased safety factor
•    Higher torque capacity
•    Easy to install
•    Installs in any season
•    Minimal soil disturbance
•    Not affected by a high water table
 
Composition:
•    square solid shaft 1 1/2" thru 2″ O.D. typical.
•    Solid round cornered Square (RCS), yield strength of grade 70 or 90. 
•    Ultimate compression/tension axial capacity: 57 to 200 kip. 
•    Circular tapered plates (helices) are welded to the center of the shaft.
•    Helix diameters can range between 6″ - 48″
•    with a thickness of 3/8″ - 1″.
•    Helix pitch will range from 3″ - 6″
•    Hot dipped galvanized per ASTM A123 or bare steel options available
•    Coupling bolts are heavy hex bolt as per ASTM A325
•    All welding to be done by welders certified of the AWS CODE D1.1