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More contactsDetailed Explanation of Screw Pointed Pile Applications
Screw pointed piles (also known as helical piles or threaded piles) are a new type of geotechnical engineering material. Featuring a unique threaded structure and pointed design, they offer advantages such as efficient construction, strong load-bearing capacity, and wide adaptability in foundation reinforcement and support scenarios. Below is a comprehensive overview of their practical applications in industrial fields (e.g., construction, infrastructure, energy)
1. Construction Engineering (Residential & Commercial Construction)
Low-to-Mid-Rise Building Foundations: Suitable for villas, apartments, small commercial buildings, etc., as a replacement for traditional cast-in-place concrete piles. The threaded structure enhances frictional engagement with soil, while the pointed design enables quick screwing into the ground. No large equipment is required, making it ideal for urban residential areas and sites with limited construction space.
Existing Building Reinforcement: Used for settlement repair and load-bearing wall reinforcement of old buildings. Supplemental screw piles installed around the structure improve foundation load-bearing capacity and reduce deformation risks (e.g., heritage building preservation, factory renovation projects).
2. Energy & Industrial Facilities
Solar Power Plant Foundations: Ideal for large-scale solar panel racking systems. The piles can be directly screwed into the ground (no excavation) and adapt to diverse terrains (deserts, grasslands, slopes). With a high construction efficiency (500-1000 piles per day), they avoid damaging surface vegetation, meeting the requirements of green energy projects.
Wind Power Project Auxiliary Foundations: Used for auxiliary facilities (e.g., substations, maintenance roads) of wind turbines or main foundations of small wind turbines. Particularly effective in areas with abundant wind resources but complex geology (e.g., hills, tidal flats).
Industrial Plant Expansion: When the existing foundation load-bearing capacity is insufficient for factory workshop/warehouse expansion, supplemental screw piles can quickly enhance capacity without disrupting ongoing production.
Specification
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Pile Diameter (OD)
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100mm - 300mm
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Choose 100-160mm for small projects (photovoltaic brackets, landscape facilities); choose 180-300mm for building foundations and roadbed reinforcement
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Pile Length
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1m - 12m
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Customizable on demand (up to 15m in length), with a recommended 6-12m for soft soil foundations to enhance bearing capacity
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Helix Diameter
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150mm - 400mm
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Typically 50-100mm larger than the pile diameter. The greater the thread size, the stronger the side friction resistance (recommended for soft soil/sand layers)
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Helix Pitch
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150mm - 300mm
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The larger the pitch, the higher the construction efficiency; for clay layers, a smaller pitch of 150-200mm is recommended to prevent soil loosening
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Pointed Angle
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30° - 60°
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Use sharp angles of 30 ° -45 ° (for easy penetration) for hard soil/gravel layers; Soft soil layer selected with 45 ° -60 ° obtuse angle (dispersed load)
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Wall Thickness
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3mm - 10mm
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When the material is Q235, the wall thickness is 3-6mm (for light loads); Q355 material wall thickness 6-10mm (heavy load/anti-corrosion requirements)
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Connection Type
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Welded,Flanged
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When the length is greater than 6m, segmented connection is used, welding is suitable for concealed engineering, and flange connection is easy to disassemble and maintain (such as emergency engineering)
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Light load (photovoltaic bracket/movable panel house): φ 120 × 4mm (pile body), φ 200 × 200mm (thread), length 4m, pointed tip 45 °
Medium load (multi story building/roadbed reinforcement): φ 200 × 6mm (pile body), φ 300 × 250mm (thread), length 8m, tip 30 °
Heavy load (industrial plant/bridge ramp): φ 300 × 8mm (pile body), φ 400 × 300mm (thread), length 12m, tip 45 °
