Construction Plan for New Building in Container Workshop

The construction plan for the new building in the container workshop needs to be systematically planned from three aspects: construction preparation, main construction techniques, and precautions, as detailed below:

I. Construction Preparation

1. Technical Preparation: Complete the design of a full set of drawings for architecture, structure, and utilities, with a focus on marking container splicing joints, load-bearing structures, and waterproof insulation layers, and have them reviewed by a third-party drawing review agency. Compile a 'Construction Technical Manual' and provide professional-specific briefings to steel structure welders, hoisting workers, etc., clarifying process parameters (such as welding current of 180-220A) and operational specifications (such as hoisting inclination angle ≤ 15°).
2. Site Preparation: Use a total station to measure the site elevation and level the slope to ≤ 3°. Weak soil layers need to be replaced with graded sand and gravel (depth ≥ 500mm, compaction degree ≥ 93%). Divide functional areas such as material stacking areas (hardened concrete + drainage ditches) and hoisting operation areas (hard barriers + load limit signs). Temporary electricity should be arranged according to the 'three-level distribution and two-level protection' standard.
3. Material and Equipment Preparation: The main body of the container should be a 20-foot standard shipping container (steel yield strength ≥ 345MPa), and the enclosure material should be A-grade fireproof rock wool sandwich panels (density 120kg/m³) and aluminum-magnesium-manganese roof panels (wave height 32mm). The main equipment includes a 25T truck crane, carbon dioxide gas shielded welding machines, etc., which need to be calibrated and labeled with qualification tags before entering the site.

II. Main Construction Techniques

1. Foundation Construction: Excavate foundation pits (1000mm × 1000mm × 600mm), lay a C15 concrete cushion at the base, bind a two-way steel mesh, and then pour C30 concrete. Pre-embed a 10mm thick steel plate on the top surface for container connection.
2. Container Module Modification and Assembly: After anti-corrosion treatment of the container body, cut openings for doors and windows, and reinforce key parts to meet mechanical requirements. Complete integrated decoration such as insulation layers, electrical wiring, and ventilation equipment in the factory. On-site, assemble the modules by hoisting and fix them to the foundation with high-strength bolts to ensure that the structural wind and earthquake resistance performance meets the specifications.

III. Precautions

1. Spatial Layout: Avoid core production areas and fire exits, and prioritize idle areas at the edge of the workshop. Use soft partitions to divide functional modules indoors.
2. Material Selection: The enclosure material must be A-grade fireproof color steel plates, and the floor should be covered with anti-slip rubber mats; use soundproof panels when close to high-noise areas.
3. Detail Handling: Install skylights or high-transmittance glass to improve lighting, and reserve exhaust vents or ventilators; use expansion bolts to fix light steel structures, and weld bases to containers to prevent forklift vibration and displacement.
4. Fire Safety: Obtain consent from the workshop management before construction, equip with fire extinguishers and smoke detectors, and comply with safety production requirements.