Dali Building Mobile Toilet Construction

The construction of mobile toilets for buildings in Dali needs to follow the full-process operation specifications, covering aspects such as foundation construction, main body installation, interior decoration, sewage system configuration, and the improvement of supporting facilities. The specific key points are as follows:

I. Project Planning and Design

1. Single Structure: Single-toilet, double-toilet, or multi-toilet combined designs are adopted. The standard size is length × width × height = 1.1m × 1.1m × 2.3m. It can be flexibly combined into a connected or independent layout according to site requirements. The number of toilets should be configured based on the usage scenario: 3-5 toilets per location in scenic spots, 2-3 toilets in municipal areas, and for temporary locations at large-scale events, the standard is one toilet per 500 people. The functional areas include toilet areas, hand-washing areas, and management rooms (optional). High-end locations need to add barrier-free toilets and baby care stations.
2. Climate Adaptability: In view of Dali's characteristics of heavy rainfall and strong ultraviolet rays, the main structure needs to undergo anti-corrosion and anti-rust treatment. The roof and walls need to be equipped with a waterproof layer (such as polyurethane in the core layer of metal carved panels) and an insulation layer (such as light-weight PVC hollow扣板 with a flame-retardant rating of V-0) to ensure long-term weather resistance.
3. Ecological Compatibility: Priority should be given to the use of environmentally friendly materials (such as E0-grade panels with a formaldehyde emission of ≤ 0.1mg/m³). The sewage system should adopt low-pollution treatment technologies (such as biological degradation or septic tank sedimentation) to avoid polluting the Erhai Lake basin and its surrounding environment.
4. Rapid Deployment: The factory prefabrication and on-site assembly mode is adopted, and the installation cycle of a single group of toilets is controlled within 24 hours to meet emergency needs.

II. Material Selection and Technical Parameters

1. Main Structure: The frame is made of galvanized square steel (columns 50 × 50mm, wall thickness 3mm) and channel steel (bottom 10# channel steel). The welding points need to be anti-rust treated. The walls can be made of metal carved panels (for long-term use) or color-steel sandwich panels (for temporary use). The floor is made of 2mm anti-slip aluminum plates (with an anti-slip coefficient ≥ 0.8). The roof is made of 3mm light-weight PVC hollow扣板 (with a wind load resistance of 0.5kN/m²).
2. Sanitary Ware and Equipment: It is equipped with stainless steel squat toilets (with water seals), hand-washing basins (with a brushed surface), doors and windows made of aluminum alloy swing doors (5mm frosted tempered glass) and ventilation louver windows; the electrical system includes LED energy-saving lighting (12W per toilet), exhaust fans (with an air exchange rate of ≥ 8 times per hour), and smart sensors (infrared induction flushing and lighting).
3. Auxiliary Facilities: Stainless steel handrails, coat hooks, waste paper bins, and occupied/unoccupied indicator devices are installed. High-end locations can add hand dryers.

III. Construction Process and Quality Control

1. Foundation Construction: After leveling the site, pour a concrete foundation to ensure that the levelness error is ≤ 5mm and reserve sewage pipe interfaces.
2. Main Body Installation: Assemble the frame according to the design drawings, fix the wall and roof materials, and check the structural stability.
3. Interior Decoration: Lay anti-slip floors, install sanitary ware and electrical equipment, and debug the smart sensing system.
4. Sewage System: Connect the septic tank or biological degradation equipment and test the drainage seal to prevent leakage.
5. Acceptance Standards: Check the compliance of materials (such as environmental protection certifications), structural safety (wind resistance rating), and functional integrity (such as the sensitivity of sensing equipment) to ensure compliance with standards such as the Limit of Formaldehyde Emission in Wood-based Panels and Their Products for Interior Decoration and Refurbishment.