Installation of Portable Toilets at Rongchang Construction Site

The installation of portable toilets at the Rongchang construction site should follow standardized procedures, incorporating project experience and equipment characteristics. The following steps can be referenced for implementation:

I. Preliminary Preparation and Site Selection

1. Site Confirmation: Choose a flat, well-ventilated area, avoiding low-lying waterlogged spots and water source pollution zones (such as within 5 meters of septic tanks or sewage pipes), ensuring the foundation bearing capacity meets requirements.
2. Equipment Inspection: Verify the completeness of components including the main frame, toilet bowls, fecal storage tanks, and connecting parts, with a focus on checking the availability of vulnerable parts like sealing gaskets and expansion screws.
3. Plan Formulation: Determine the number of toilets based on the construction site scale. For flush toilets, plan the water supply pipeline; for dry toilets, reserve a cleaning passage for the fecal storage tank.

II. Foundation Fixation and Main Body Installation

1. Main Body Positioning: Place the portable toilet main body at the predetermined location and adjust its verticality using a level, with an error not exceeding 2mm/m.
2. Fixation Methods:
   • Expansion Screw Fixation: Suitable for concrete foundations. The drilling depth should be more than 1.5 times the screw length to ensure an anchoring force of ≥500N.
   • Counterweight Block Fixation: Used on soft soil foundations. Each square meter should have a counterweight of no less than 300kg to prevent overturning in strong winds.
3. Waterless Equipment Adaptation: If using a stainless steel waterless packing squat toilet, choose the excavation depth based on whether it is buried or floor-mounted (a buried type requires a 300mm moisture-proof layer).

III. Core System Installation

1. Sewage Disposal System:
   • Flush Toilets: Connect the water inlet pipe to the water tank, install a float valve to control the water level, and ensure the sewage pipe has a slope of ≥2% for self-flow.
   • Dry Toilets: Fix the position of the fecal storage tank, install a deflector to prevent fecal accumulation, and reserve a fecal extraction port with a sealed cover.
2. Sealing Treatment: Apply silicone sealant at the interfaces between the toilet bowl and the fecal storage tank, as well as at pipe connections. After standing for 24 hours, test the pressure-bearing capacity (≥0.1MPa).

IV. Auxiliary Facility Debugging

1. Door and Window System: Install fly-proof screens, adjust the hinges so that the opening and closing resistance is ≤5N, and control the door gap width between 3-5mm.
2. Safety Facilities: Install anti-slip handrails (height 850mm±10mm) and lay anti-slip floor mats (friction coefficient ≥0.6).
3. Electrical System: Connect the lighting (illuminance ≥100lx) and exhaust fan (air exchange rate ≥80m³/h), and test the sensitivity of the leakage protection device.

V. Acceptance and Maintenance

1. Sealing Test: Fill the fecal storage tank with water to two-thirds of its height and observe for 24 hours for no leakage.
2. Function Test: Continuously flush 10 times to verify the drainage smoothness and check the automatic start-stop function of the deodorant dispensing device.
3. Signage Management: Post emergency contact numbers and equipment operation guides in conspicuous locations and establish a regular fecal extraction record sheet (dry toilets should be emptied every 3 days).

Reference Case: The project in Yaoshan Community, Renyi Town, Rongchang District adopted the plan of Sichuan Anjiu Construction Engineering Co., Ltd., achieving rapid deployment within 48 hours through modular design and reducing subsequent maintenance costs by 40%, which can serve as a reference for similar construction sites.