Concrete Foundation for Container Houses

The concrete foundation for container houses should be selected based on the usage scenario and requirements. Common types include strip foundations, raft foundations, and concrete piers, with screw anchor foundations being an alternative to concrete in some scenarios. Specific design should be determined by considering factors such as geological conditions, house type, and usage cycle. Here is a detailed explanation:

1. Long-term Fixed Usage Scenarios
If container houses are to be used for long-term fixed purposes (such as construction site offices or residences), concrete foundations are typically required.

• Strip Foundations: Suitable for fixed residential container houses, with a recommended width of 30-50 centimeters and a depth determined by the thickness of the frozen soil layer. The horizontal height difference of the foundation top surface should not exceed 5 millimeters to evenly distribute the pressure of the container and avoid uneven settlement.
• Raft Foundations: Used to enhance the connection between the container and the ground. For example, Yashun Light Steel's patented design involves welding support column feet to the raft foundation through embedded parts, improving seismic performance and reducing wind impact.
• Concrete Piers: In outdoor long-term usage scenarios, constructing concrete piers at the bottom can enhance wind and seismic resistance. Reinforcing corners with steel frames significantly improves durability.

2. Short-term or Temporary Usage Scenarios
For short-term usage of container houses (such as exhibitions or temporary offices), simplified foundation solutions can be adopted:

• Prefabricated Concrete Blocks or Steel Plates: The spacing between blocks should not exceed 2 meters, with a crushed stone leveling layer laid underneath to ensure horizontal force points. This is suitable for foldable container houses and packing-box units that have lower foundation requirements.
• Screw Anchor Foundations: As an alternative to concrete foundations, screw anchor foundations use steel structures screwed into the soil to support the container, achieving zero excavation and zero pouring. This increases installation efficiency by three times, doubles material reuse rates, and aligns with sustainable development principles.

3. Optimized Design for Special Scenarios

• Drainage and Corrosion Protection: For long-term outdoor usage, pre-embedded drainage pipes are necessary to prevent water accumulation. Treating exterior walls with anti-corrosion wood can extend service life.
• Modular Design: For example, mobile guard booths from Guangzhou manufacturers come with built-in doors, windows, and electrical circuit预留口 (reserved openings). Only simple wiring and fixation are required on-site, making them suitable for flexible scenarios such as security booths and temporary offices.