Henan Xuchang Mobile Toilet Inspection

The inspection of mobile toilets in Xuchang, Henan, should be comprehensively carried out from three aspects: structural safety, functional performance, and environmental adaptability. The specific inspection points are as follows:

I. Structural Safety Inspection

1. Wind and Earthquake Resistance Performance Evaluation
   Mobile toilets require on-site investigations combined with software simulations (such as PKPM) for load-bearing capacity analysis, with a focus on dead loads, live loads, wind loads, and seismic effects. For prefabricated box-type toilets, it is necessary to verify whether their seismic fortification intensity reaches magnitude 8 and their wind resistance reaches level 12, with particular attention to stability issues under extreme conditions caused by their relatively light weight.
2. Structural Damage and Material Strength Inspection

• Damage Investigation: Check for cracks, deformations, or local damage in walls, doors, windows, and steel structures. Record the location, extent, and cause of the damage, and analyze the causes (such as material aging, construction defects, etc.).
• Material Strength Verification: Use the surface hardness method to sample and test the tensile strength of steel structures to ensure that the material properties meet design requirements.

3. Structural Load-Bearing Capacity Calculation
   Combine on-site inspection data with original design documents to calculate the load-bearing capacity of the toilet's main structure using professional software, verifying whether it can withstand usage loads and environmental forces.

II. Functional Performance Inspection

1. Waterproofing and Drainage System Inspection

• Roof Waterproofing: Confirm that there is no leakage on the roof through post-rain observation or a 30-minute water spray test; prefabricated septic tanks require anti-leakage tests.
• Floor Waterproofing: Integrated bathrooms require full water tests (lasting more than 24 hours) and water flow tests to check the sealing of connectors and the smoothness of drainage, ensuring that the floor slope is correct and there is no water accumulation.

2. Enclosure Structure Sealing Inspection

• Exterior Walls and Doors/Windows: Check the flatness of wall panels, ensuring no deformation or damage, and that the joints between door and window openings and the main structure are properly sealed to prevent rainwater infiltration.

III. Special Inspection for Prefabricated Box-Type Toilets

1. Building and Structure Verification
   Verify the consistency between the actual structural layout (such as wall distribution and door/window locations) and the drawings, ensuring that axial dimension deviations are within the allowable range of the specifications.
2. Stability Under Extreme Conditions
   Given the light weight of box-type toilets, focus on evaluating their anti-overturning capacity under extreme conditions such as strong winds and earthquakes to ensure structural safety redundancy.

Inspection Significance: Through systematic inspection, the structural reliability, functional integrity, and environmental adaptability of mobile toilets can be comprehensively evaluated, providing a scientific basis for usage safety and extending the service life of the facilities.