1. Mechanical Design: How does it meet the unique load requirements of hydropower stations?
Scaffolding used in hydropower station construction must withstand a variety of complex loads. Through meticulous mechanical design, scaffolding with a tangent successfully addresses these challenges. For pole selection, scaffolding with a tangent uses Q345B high-strength steel, which exhibits excellent mechanical properties and an axial compressive strength of up to 200kN. In heavy-load scenarios like dam concreting, other types of scaffolding may deform or even collapse due to the immense pressure. However, scaffolding with a tangent, thanks to its high-strength poles, can stably support the various loads during construction, ensuring safe construction.
The arrangement of diagonal braces is crucial to scaffolding stability. The 360° adjustable diagonal braces of a scaffolding system create a stable triangular structure. According to data from the “Study on the Stability of a Scaffolding System with a tangent,” this structure has a 40% higher anti-overturning coefficient than traditional scaffolding. Hydropower station construction often faces adverse conditions such as strong winds and vibrations. The diagonal rod arrangement of the interlocking scaffolding effectively resists these external forces, maintaining the scaffolding’s stability and providing a safe and reliable working platform for construction workers.
Joint connections are a critical component of scaffolding’s mechanical performance. Interlocking scaffolding utilizes a wedge-shaped plug and self-locking pin connection system, which offers strong pullout resistance (≥3kN). Unlike traditional scaffolding’s bolted connections, interlocking scaffolding avoids the problem of loosened bolts leading to joint failure. During long-term construction, bolts are susceptible to loosening due to vibration, wind, and sunlight. Once a joint fails, the stability of the entire scaffolding is seriously threatened. However, the interlocking scaffolding connection system consistently maintains joint stability, ensuring the scaffolding’s safety.
2. Construction Specifications: Key Points for the Entire Process, From Foundation Preparation to Acceptance
A standardized construction process is fundamental to the safe use of interlocking scaffolding, and every step must be carefully considered. Regarding foundation preparation, hydropower stations are often located in mountainous areas with complex foundation conditions, and soft soil is common. For this type of foundation, a 10cm concrete cushion is required to increase the foundation’s bearing capacity and stability. Furthermore, the leveling error of the adjustable base must be controlled to ≤5mm to ensure a flat base and avoid uneven loads caused by an uneven base, which could affect the overall stability of the scaffolding.
During scaffolding erection, controlling the vertical deviation of the uprights is crucial and must be kept within 1/500. Excessive vertical deviation can alter the load-bearing state of the scaffolding, increasing safety risks. When the horizontal bar spacing is 1.5m, vertical diagonal bars must be installed at each level to enhance the overall stability of the scaffolding and enable it to better withstand various loads.
Safety acceptance is the final step in ensuring the safe use of interlocking scaffolding. Referencing the JGJ/T 231-2021 standard, focus on checking the latch lock rate. Ensure 100% latch lock. Latch lock directly impacts the joint strength and overall scaffolding stability. Also, check the ground clearance of the sweeping rods, which must be ≤300mm. Sweeping rods enhance the stability of the scaffolding base and prevent sway. Only by passing rigorous safety inspections can the safe and reliable operation of the interlocking scaffolding be ensured during construction.
3. Cost-effectiveness: How to balance long-term investment with short-term benefits?
Cost-effectiveness is a key consideration when choosing scaffolding. Although interlocking scaffolding has a higher initial cost, its overall cost advantage is significant in the long term.
The unit price of interlocking scaffolding is approximately 2,000 yuan per ton, twice that of traditional scaffolding, which can lead many to initially be concerned about the cost. However, under a rental model, its daily rental cost is only 1.5 yuan per ton, making it ideal for long-term use in hydropower projects. Hydropower projects have long construction periods, and leasing can significantly reduce initial investment costs. Furthermore, the durability of the interlocking scaffolding minimizes wear and tear during the rental period.
Beyond the rental cost advantage, interlocking scaffolding offers numerous hidden savings. Field data from a hydropower station shows that the use of interlocking scaffolding reduced losses from safety accidents. Its stable structure and high safety performance significantly reduced safety risks during construction, minimizing casualties and property damage caused by accidents. Furthermore, the interlocking scaffolding’s high efficiency in erection and dismantling shortens construction schedules, bringing additional benefits to the project. Overall, the interlocking scaffolding achieved a 25% reduction in overall costs compared to traditional solutions, demonstrating its excellent balance between long-term investment and short-term benefits.
Post time: Sep-16-2025