Loading and Unloading of Container Renovated Houses

The loading and unloading process of container-renovated houses involves three core stages: factory prefabrication, transportation lifting, and on-site assembly, which require a combination of modular construction technology features and logistics specifications for operation.

1. Modular Disassembly and Pre-assembly in the Factory Prefabrication Stage

The essence of container-renovated houses is modular construction, and the foundation of their loading and unloading lies in standardized disassembly and pre-assembly within the factory. Taking a steel-structure modular intelligent factory as an example, the house is disassembled into six components: the bottom, top, and four sides, which are produced simultaneously on multiple sub-production lines. The components undergo main structure welding, water and electricity pipeline pre-embedding, bathroom waterproofing, and interior decoration including bathroom fixtures, cabinets, and wardrobes within the factory, ultimately being assembled into complete containers at the end of the production line. Strict control over manufacturing precision is required at this stage. China's first steel-structure modular intelligent production line can maintain precision stability within 1-2 millimeters, ensuring accurate对接 (docking) in subsequent assembly stages.

2. Lifting and Fixing Specifications in the Transportation Stage

The prefabricated container modules need to be transferred to transportation vehicles using lifting equipment. During the lifting process, professional lifting fixtures must be used to secure the four corner fittings at the top of the container, ensuring even force distribution to prevent deformation. For sea transportation, containers are stacked on the deck of specialized cargo ships and secured with twist locks to prevent sliding; for land transportation, low-bed semi-trailers are used, and the containers are fixed to the vehicle body with straps. Before transportation, the sealing of container door locks, vents, and other components must be inspected to prevent rainwater or dust from entering and affecting the interior decoration.

3. Modular Docking Technology in the On-site Assembly Stage

Upon arrival at the destination, the container modules need to be lifted to their predetermined foundation positions using cranes. During assembly, the bottom-layer modules are fixed first, followed by stacking layer by layer using bolts or welding, with water and electricity pipelines between adjacent modules connected quickly through pre-reserved interfaces. For example, bathroom modules require pre-reserved S-shaped drainage outlets and waterproof trays, which can be directly connected to solar water heaters or municipal water supply systems on-site. After assembly, airtightness and watertightness tests must be conducted to ensure the house meets residential standards.