Withstanding 260km/h Typhoons! The Robust Construction Solution for the Coal Bunker of Kalakala Power Plant in the Philippines

Project Challenges: Double Impact of Typhoons and Earthquakes

The coal storage bunker of Power Plant in the Philippines has been facing tests from extreme natural conditions since the planning stage:

• Climate Challenge: Located in a super typhoon zone with wind speeds of up to 260 kilometers per hour, it withstands fierce storms and heavy rains every year.
• Geological Threat: Situated in a high seismic intensity zone with Z=0.4, the structural stability must be absolutely guaranteed.
• Cost Pressure: The client requires strict control over overseas construction costs while ensuring safety, and also demands controllable construction periods.
• Ultra-Large Scale: With a total height of 48.675 meters and a foundation height of 3.0 meters, the long-span dome design poses a great challenge to structural strength for industrial projects.

Solutions: Comprehensive Upgrades from Design to Materials

Targeting these pain points, our overseas engineering team has tailor-made a combined solution of "wind and earthquake resistance + cost reduction and efficiency improvement":

1. Structural Design: Guiding Wind to "Bypass" and Cushioning Earthquakes for "Soft Landing"

• Arch Dome Design: Adopting a streamlined curved surface to significantly reduce wind resistance, allowing typhoon loads to be evenly distributed to the supporting structure and avoiding local stress concentration.
• Flexible Seismic Joints: Flexible connection technology for steel structures is used between the foundation and the main structure to effectively buffer the transmission of seismic waves and reduce the risk of structural damage.
• Modular Prefabrication: Main components are prefabricated in domestic factories, and only on-site assembly is required, which effectively shortens the overseas construction period.

2. Material Selection: Balancing Toughness and Corrosion Resistance

• Main Steel Material: Q355B high-strength steel is selected to ensure structural strength while reducing self-weight and lowering foundation costs.
• Surface Protection: The dual protection of hot-dip galvanizing and double-layer painting perfectly adapts to the high-salt and high-humidity marine climate in the Philippines, extending the service life of the structure.
• Roof Panels: Color steel plates are adopted, which have the advantages of light weight, waterproof performance and wind resistance, with higher installation efficiency than traditional materials.

3. Localized Services: Making Overseas Projects "Smoother"

• In-depth On-site Collaboration: Our overseas project team is fully involved in on-site management throughout the process, establishing an efficient communication mechanism with local construction parties to ensure the accurate implementation of technical standards and construction requirements.
• International Standard Control: The entire project execution follows international authoritative standards such as ISO, CE and SGS. Key materials and core nodes have all passed third-party professional testing to ensure structural safety and reliable quality.
• Long-term Operation and Maintenance Guarantee: We provide localized technical support and operation and maintenance services, which can quickly respond to customers' technical consulting and maintenance needs, ensuring the long-term stable operation of the project.

Delivery Results: Achieving Triple Wins in Safety, Cost and Efficiency

• Controllable Construction Period: The modular prefabrication and efficient on-site assembly scheme effectively shortens the overseas construction period, helping customers realize the on-schedule commissioning of the project.
• Cost Optimization: The lightweight design and cost-effective materials effectively control the overall construction cost compared with traditional schemes.
• Customer Recognition: After withstanding multiple strong typhoons, the coal bunker structure has performed stably, and the power plant operator has highly praised its safety performance.

Core Advantages of Our Overseas Engineering Services

• Experienced Team: We have in-depth experience in projects in tropical climates and high seismic zones, providing one-stop services from design to delivery.
• Mature Service System: We have a mature overseas project service system, which can provide customized technical support and operation and maintenance guarantee according to the needs of the project location, ensuring the stable operation of the project throughout its life cycle.
• Full-chain Quality Control: Every step from material procurement to construction acceptance strictly follows international standards to ensure the long-term stable operation of the project. To learn more about our overseas steel structure engineering capabilities and service network, visit our official website.