Container House Transfer Process Flowchart

The transfer process of container houses can be divided into three categories based on scale and structural complexity, with specific operations requiring adjustments according to the scenario. The core steps are as follows:

I. Transfer Process for a Single Container House

1. Preparation

   • Container Inspection: Confirm that the container structure has no cracks or deformations, focusing on load-bearing parts such as corner fittings and columns; secure or empty internal items to prevent重心偏移 (center-of-gravity shift) during transportation.
   • Equipment Selection: Choose an appropriate crane (e.g., a 25-ton truck-mounted crane) based on the container weight (typically 2-5 tons). The lifting gear must match the lifting holes/rings to avoid slippage risks.

2. Lifting and Transportation

   • Lifting Operation: Slowly lift the container to 50 cm above the ground and pause to check the stability of the lifting gear connection; confirm no issues before lifting it above the transport vehicle (flatbed truck) and moving it horizontally to the center of the vehicle body.
   • Transportation Requirements: The vehicle speed should be controlled within 40 km/h, avoiding bumpy roads; measure the route height restrictions (e.g., bridges, tunnels) before transportation to ensure the container height (including lifting gear) does not exceed 4.5 meters.

3. Finalization

   • Foundation Preparation: The new site requires pre-pouring a concrete foundation with an elevation error of ≤±10 mm to ensure the container is placed stably.
   • Equipment Debugging: After reconnecting the water and electricity pipelines, test the operation status of lighting, air conditioning, and other equipment, and record the debugging data.

II. Transfer Process for Multiple Combined Container Houses

1. Disassembly Preparation

   • Connector Removal: Use an electric wrench to remove bolts or welded connectors between containers, keeping marks on key parts for reassembly.
   • Structural Reinforcement: Provide temporary support to weak parts of independent containers (e.g., around doors and windows) to prevent deformation after disassembly.

2. Separate Lifting and Transportation

   • Independent Lifting: Lift each container separately, with lifting points distributed at the four corner fittings of the container to avoid excessive local stress.
   • Transportation Coordination: Multiple transport vehicles should depart simultaneously, maintaining a distance of ≥20 meters to prevent container sliding due to sudden braking.

3. Reassembly and Installation

   • Reassembly: Align the containers according to the original design drawings and reconnect them using high-strength bolts (grade ≥8.8) with torque values meeting the standard (e.g., 320 N·m for M20 bolts).
   • Sealing Treatment: Apply waterproof sealant to the container joints to prevent rainwater leakage.

III. Overall Migration Process for Container Office Buildings (Technically Enhanced Version)

1. Structural Assessment and Reinforcement

   • Dynamic Stress Analysis: Simulate the impact of transportation vibrations on container connection points (welds/bolts) using finite element software, and reinforce weak parts by welding steel plates or adding diagonal braces.
   • Pre-treatment Cutting: If passing through narrow passages, temporarily cut non-load-bearing parts (e.g., decorative panels) and restore them after migration.

2. Professional Lifting and Transportation

   • Multi-point Lifting: Use an 80-120-ton truck-mounted crane to lift the container synchronously through four corner fittings, maintaining a container levelness error of ≤1°.
   • Low-speed Transportation: The speed should be ≤30 km/h, with a turning radius of ≥15 meters, equipped with shock-absorbing devices (e.g., air spring suspension) to reduce vibrations.

3. Precise Positioning and Repair

   • Laser Positioning: Use a laser level to project reference lines to ensure a foundation elevation error of ≤±5 mm and a container verticality deviation of ≤H/1000 (H is the container height).
   • Structural Correction: Hydraulically correct minor deformations (e.g., door frame flatness deviation >3 mm) during transportation to restore the original dimensions.

Key Precautions: Empty internal heavy equipment (e.g., servers, safes) before migration; retain documents such as migration handover agreements and equipment debugging records; operators must hold special equipment operation certificates (crane operators, electricians).