The installation quality of container houses directly determines their service life and safety. A standardized installation process and meticulous construction management are key to ensuring durability and safety.
1. Preliminary preparation and site selection
Before installation, a detailed site survey should be carried out. Choose a site with flat terrain, good drainage, and away from high‑voltage lines and flammable material storage areas. The ground slope should not exceed 5% to avoid tilting or structural deformation. If the ground is soft, concrete pouring or gravel cushion layers are required to ensure the bearing capacity meets requirements. A single standard container weighs about 2.5 tons, and when fully loaded can total up to 10 tons, so the ground bearing capacity must be confirmed.
Also consider the fire separation distance from neighboring buildings (≥6 m) and the horizontal distance from high‑voltage lines (≥1.5 times the pole height). Notify urban management and fire authorities in advance, and confirm whether the land use allows temporary structures.
2. Foundation construction
For short‑term use, concrete precast blocks or steel I‑beam pads can be used, ensuring horizontal error ≤5 mm. For long‑term use, reinforced concrete foundations (thickness ≥20 cm) must be cast, with anchor bolts embedded to fix the container corner castings for enhanced wind resistance. A moisture barrier membrane (thickness ≥0.2 mm) should be laid on the foundation surface, with seams overlapping ≥15 cm and sealed with tape. A 5 cm high anti-corrosion wood pallet can be installed under the container to create an air circulation layer and avoid direct contact with damp ground.
3.Lifting and assembly
Use a professional crane (lifting capacity ≥1.2 times the container's self-weight). Lifting points should be at the four top corners of the container to avoid local deformation. During lifting, a designated person should direct the operation; lift slowly and place gently to avoid impact damage. When splicing adjacent containers, the corner fitting gap should be ≤3 mm, and high-strength bolts (grade 8.8 or above) should be tightened.
Apply polyurethane sealant (weather resistance ≥10 years) to the splicing seams, install external waterproof cover plates (thickness ≥1 mm), and fill the internal gaps with fire‑resistant rock wool strips. The roof slope should be ≥5% to ensure proper drainage. Electrical wiring should be run through metal conduits or flame‑retardant PVC pipes, avoiding exposed cables.
4. Inspection and maintenance
After installation, a comprehensive inspection is required: use a spirit level to check overall horizontal accuracy (error ≤1%); shake the container to check for loose bolts; conduct a water tightness test (no leakage after 2 hours of continuous simulated rainfall); test electrical circuits; and check that doors and windows open and close smoothly.
For maintenance: check bolt tightness monthly routine; apply rust‑proof paint every six months (especially in coastal high‑humidity areas); clean roof drainage grooves before the rainy season; and inspect water pipe frost protection measures in winter. The installation should follow the principle of "safety first, function priority," with quality control throughout the entire process from site selection to ongoing maintenance.
