Prefabricated Galvanized Helical Earth Screw for House Ground Foundation Reinforcement Photovoltaic Support Foundation

Prefabricated Galvanized Helical Earth Screw for House Foundation Reinforcement  Photovoltaic Support Foundation

Product Description

Spiral ground piles are deep steel foundation components installed by rotation. Their structure is similar to a "giant screw", consisting of a central shaft and welded spiral blades. They are mechanically screwed into the ground to form a stable foundation support system. It combines the advantages of efficient construction, environmental protection and economy, as well as wide adaptability, and has become an important technical solution in modern geotechnical engineering.

1. Structure and Composition
The spiral ground pile is mainly composed of the following parts: Central axis: Usually, high-strength steel pipes (such as Q235B/Q355B steel) are used, with a diameter range of 48mm to 219mm, providing the main compressive and bending strength. Helical blades: Steel helical plates welded to the central shaft, with diameters ranging from 150mm to 600mm and a quantity of 1 to 4 pieces, transfer loads through the interlocking of the blades with the soil. Connecting components: flange plates, sleeves or welded joints, used for the extension or disassembly of multi-section piles. Anti-corrosion coating: Galvanized (≥80μm) or epoxy resin treatment to enhance corrosion resistance and extend service life. 

2. Working Principle
The helical ground pile is screwed into the ground by rotational torque. Its bearing capacity mainly depends on:

The mechanical interlocking of the blades and the soil: the rotation of the blades compresses the surrounding soil, forming a dense support layer.

Depth effect: The greater the burial depth, the stronger the lateral restraint of the soil on the pile body and the higher the bearing capacity.

Real-time torque control: The installation torque is positively correlated with the bearing capacity (empirical formula: bearing capacity ≈10× torque), which can achieve quality monitoring during the construction process.

Core Characteristics

1.Efficient construction: The installation of a single pile only takes 5 to 30 minutes, no maintenance is required, it can bear load immediately, and the construction period is shortened by more than 50% compared with traditional pile foundations. 

2.Environmentally friendly and low interference: No vibration, low noise, and no mud pollution, suitable for construction in cities, ecologically sensitive areas, or near existing buildings.

3.Flexible adaptability: Adjustable pile length and blade configuration, suitable for soft soil, frozen soil, high water level and even rock layers (special design required).

4.Strong economic efficiency: Saves materials (no concrete), labor and machinery costs, and reduces the overall cost by 20% to 40%. 

5.Reusable: After the completion of temporary projects (such as photovoltaic power stations and temporary buildings), they can be pulled out and reused, reducing resource waste.

6.Precise and reliable: The load-bearing capacity is verified in real time through torque, supports inclined installation to resist lateral forces, and has high quality controllability. 

Typical Application Scenarios

New energy infrastructure: photovoltaic brackets, wind turbine foundations.

Architecture and Municipal Engineering: House foundation, retaining wall, bridge reinforcement, street lamp/signal pole foundation.

Temporary facilities: prefabricated houses, exhibition halls, and temporary supports at construction sites.

Special environments: Permafrost areas, coastal corrosion zones, buildings in seismic zones.

Product Parameters

Spiral ground piles are a modern foundation treatment technology that is efficient, economical and environmentally friendly. They provide stable bearing capacity through the mechanical combination of steel spiral structures and soil. Its modular design and rapid construction characteristics give it irreplaceable advantages in new energy, building reinforcement and temporary engineering, and it is an important supplement and development direction of traditional pile foundation technology.

The parameter selection of spiral ground piles should be combined with engineering requirements, geological conditions and budget, and the shaft diameter, blade size and material should be reasonably matched. Its modular design gives it obvious advantages in terms of load-bearing capacity, construction efficiency and environmental protection, and it is suitable for a variety of scenarios ranging from temporary facilities to permanent buildings.

Company Profile

Qingdao KXD Steel Structure Co.,Ltd is one subsidiary for XINGUANGZHENG Group focusing on structural steel building construction related business, engineering,supply, fabrication, delivery and installation for whole buildings construction, meanwhile, we also do steel foundation accessories fabrication, foundation anchor, ground screws,helical pile.

Our Advantages

✅ Quality product: Made of high strength steel (Q235B/Q355B), with anti-corrosion galvanized or epoxy coating to ensure durability and corrosion resistance, suitable for various complex geological conditions.

✅ Customized services: We offer a variety of specifications (shaft diameter 48mm - 219mm, blade diameter 150mm - 600mm), and support customization according to engineering requirements to meet different bearing capacity requirements.

✅ Fast delivery: Factory direct supply, sufficient inventory, shortened procurement cycle, guaranteed project progress.

✅ Technical support: Professional team provides selection guidance, construction plan optimization and on-site installation support to ensure project quality.

✅ Cost advantage: helps customers save 20% to 40% of the combined cost compared with traditional pile foundation and improve project efficiency.

Packaging&Shipping

As a professional manufacturer of spiral pile anchors, we are well aware of the significance of packaging and transportation in ensuring product quality. In the packaging stage, we use sturdy customized packaging to protect the spiral pile anchors from damage during transportation, and we also take measures to shield the sharp parts to prevent scratches. Regarding transportation, we collaborate with high-quality logistics providers to offer nationwide fast delivery services, and we purchase transportation insurance for each batch of goods to ensure that customers can receive the products safely and on time.

Erection

Screw piles are wound into the ground much like a screw into wood. Screw piles are installed using various earthmoving equipment fitted with rotary hydraulic attachments. Machinery varies from skid-steer loaders to 5 tonne through 80 tonne excavators. Rotary hydraulic powerheads with torque capacities ranging from 5,000 Nm to 500,000 Nm are custom fitted using various boom configurations. Special drive attachments connect the screw pile to the machine. Correct installation techniques are paramount to meet engineered design load and settlement outcomes. Incorrect techniques are likely to result in poor overall pile performance.

As a professional manufacturer of helical piles, we are well aware of the significance of building a stable and efficient foundation structure for our customers. Our helical piles are made of high-quality steel and crafted through exquisite techniques, featuring outstanding load-bearing capacity and corrosion resistance. During the installation process, they are easy and quick to operate, requiring no complex machinery. Only professional installation tools are needed to effortlessly screw them into the ground. Whether it's for outdoor fences, billboards, solar panel supports or temporary buildings, our helical piles can quickly provide stable support, saving time and labor costs. Meanwhile, we offer detailed installation guidance and full technical support throughout the process to ensure that customers can easily complete the installation, making your project stable, reliable and long-lasting.

If you are interested in our products,please feel free to contact with us,we are glad to serve you.