Q355 Q255 Ground Helical Earth Anchors For Construction Foundation

Product Description

The ground screw is a new type of foundation system, mainly composed of pipe piles with spiral blades wound around the surface of metal pipes after hot forging. They are screwed into the ground by special hydraulic tightening equipment, replacing the traditional concrete foundation, and the top is used to connect the load.

Performance advantage

1.Easy to install: The installation process is simple, without the need for complex equipment or a large amount of labor, thereby improving construction efficiency.
2.Short construction period: Compared with traditional concrete foundations, the construction time is significantly shortened.
3.Less affected by the construction environment: Construction is not restricted by environmental factors such as weather and terrain.
4.No damage to the local environment: No large amount of construction waste or noise pollution will be generated during the construction process.
5.Easy to relocate and recycle: When relocation or dismantling is needed, it can be easily unscrewed from underground and reused.
6.High strength: Made of high-strength steel, it features high load-bearing capacity and tensile strength.
7.Long service life: The material and surface treatment process make it have excellent corrosion resistance and wear resistance.
8.Wide application range: Suitable for various soil types.

Application field

1.Construction field: It is used in the basic construction of wooden house villas, light steel structure houses, temporary buildings, etc.
Municipal facilities: Basic facilities such as bus shelters, street lamps, billboards, and signal signs.
2.Transportation facilities: railway guardrails, expressway signboards, traffic direction signs, etc.
3.Power facilities: power towers, substations and other foundations.
4.Energy facilities: solar photovoltaic bracket systems, solar lamps, etc.
5.Other fields: household handrails, guide rails, fence foundations, sports venues, breeding greenhouses, etc.

Some common product parameters of ground screw pile

Material
Steel: Materials such as Q235 and Q345 are usually adopted, and ASTM A500 B grade is also used. The surface will undergo hot-dip galvanizing treatment, and the thickness of the galvanized layer is generally 80-100μm to enhance the anti-corrosion performance.
Other materials: Some products also use aluminum, stainless steel, etc. as auxiliary materials, such as aluminum bracket systems, etc., to enhance corrosion resistance and reduce overall weight.

Size
Length: The length can be customized according to requirements. Common specifications range from a few meters to over ten meters.
Diameter: Generally, there are multiple diameters available, such as 108mm, 127mm, etc. The specific size will be determined based on the load-bearing requirements and application scenarios.
Wall thickness: The wall thickness range is typically between 0.262 and 0.562 inches, which is approximately 6.65 to 14.27 millimeters. Different wall thicknesses are suitable for different loads and environmental conditions.

Carrying capacity
Wind resistance: It can generally withstand wind speeds of 216KM/H, which can meet the wind load requirements of most regions.
Snow load: Some products can withstand a snow load of 153kg/m², making them suitable for areas with thick snow accumulation.

Installation and Usage
Installation method: It is installed by spiral drilling. The installation process is simple and fast, without the need for excavation or concrete pouring, and has a small impact on the environment.
Applicable scenarios: Widely used in solar photovoltaic systems, wooden structure buildings, fences, signboards and other infrastructure, suitable for various terrains and soil types.

Other parameters
Service life: Under normal usage conditions, the product's lifespan can reach 25 years, and some products come with a 10 to 20-year warranty.
Surface treatment: In addition to hot-dip galvanizing, there are also surface treatment processes such as anodic oxidation, which further enhance corrosion resistance and aesthetic appeal.

Differences between the ground screws and the spiral ground anchors

The ground screws and the spiral ground anchors are usually regarded as the same thing in practical applications. However, there are also viewpoints suggesting that they have certain differences. Here is the detailed introduction:
Similarities
1.Similar structural composition: They are all composed of a hot forged tube body, spiral blades, and connecting flange discs. The spiral blades and flange discs are welded to the tube body, and then the entire assembly undergoes hot galvanizing treatment.
2.The same working principle: Their working principle is similar to that of a wooden screw. They are both screwed into soil by using dedicated tightening equipment,replacing the traditional concrete foundation. The top of the pile is used to connect the load, and by rotating,the ground pile moves downward in the soil until it reaches the required design depth,thereby providing stable support for buildings or other structures.
3.Convenient and efficient construction:The construction processes of both are relatively simple. No large-scale excavation or ground leveling work is required, nor are complex procedures such as concrete pouring and curing needed. This significantly shortens the construction period and improves construction efficiency, and can greatly reduce construction costs.
4.Wide application range:They are applicable to various different geological conditions, such as compacted fill soil,silt,cohesive soil,sand,oose-to-medium dense gravel soil, fully weathered rock,and strongly weathered soft rock strata. They can be widely used in fields such as photovoltaic support foundation, agricultural greenhouses,wooden houses and integrated house foundations, street lamp foundations,signal sign base foundations,municipal facilities,transportation facilities, power tower foundation,and other fields.
5.Comparable performance advantages: Both have advantages such as high bearing capacity,corrosion resistance,small settlement,excellent environmental performance,simple maintenance and upkeep,and long service life,which can ensure the stability of the foundation while reducing environmental impact and having a longer service life.
Differences

1.Conceptual category: "Ground screws" are more commonly referred to as a general term, and their application scope is relatively wide, covering numerous small-scale infrastructure projects. On the other hand, "screw ground piles" are more frequently seen in some specialized engineering technical fields and large-scale projects, such as building foundation construction. When used as foundation piles in some large-scale projects, they may have higher requirements and standards in terms of size and bearing capacity.
2.Form of the screw part: Ground screws generally refer to miniature steel pipe piles with continuous threads; the screw part of screw ground piles can be either continuous threads or large blades. Large-blade screw ground piles may have better uplift and compression resistance properties under certain specific geological conditions.
3.Pile body size and bearing capacity: The size and bearing capacity range of screw ground piles is usually larger than that of ground screws. Screw ground piles can withstand higher loads and are suitable for larger-scale and heavier structural building foundations. Ground screws are mostly used in some small-scale, relatively smaller-load foundation projects.
4.Design and construction specifications: Although both need to consider geological conditions and load requirements during design and construction, the design and construction of screw ground piles in large-scale construction projects may need to follow more strict and detailed design specifications and standards, such as those related to the construction industry; while the design and construction of ground screws in some small-scale projects may be relatively more flexible and simple.

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, 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.

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