Mobile Toilet Installation in Hunjiang District

The installation of mobile toilets in Hunjiang District requires a comprehensive approach encompassing design, construction, materials, and functional configurations.

I. Design Requirements and Structural Adaptation
Located in the north temperate continental monsoon climate zone, Hunjiang District experiences extreme winter lows of -25℃ and is predominantly mountainous (with the highest peak reaching 1,492 meters above sea level). Mobile toilet design must meet requirements for cold resistance, moisture resistance, and weather resistance: The main structure adopts a modular steel framework, with single toilet cubicle dimensions of 1.2m×1.5m and barrier-free cubicles measuring 1.8m×2.0m, accompanied by a management room (4.0㎡) and a tool room (1.5㎡). Walls are constructed using metal carved panels (with polyurethane core material, thermal conductivity ≤0.03W/(m·K)) lined with fire-resistant gypsum boards, while floors are laid with non-slip vitrified tiles (friction coefficient ≥0.6) and equipped with XPS insulation layers to ensure winter thermal performance.

II. Construction Preparation and Foundation Treatment
Given the seasonal frozen soil characteristics in Hunjiang District (with a maximum freezing depth of 1.2m), each toilet cubicle foundation employs an independent C30 concrete foundation (dimensions 800×800×600mm), requiring a ground bearing capacity of ≥150kPa, with graded sand and gravel replacement (thickness of 500mm) if necessary. Prior to construction, geological surveys must be completed to optimize insulation node designs (e.g., window frames utilizing thermal break aluminum with double-glazed units, achieving an airtightness rating of ≥Grade 6). Material procurement necessitates the provision of factory certificates and re-inspection reports, such as ultrasonic testing for steel structure welds and thermal conductivity tests for insulation materials; biological degradants must select low-temperature active strains (applicable from -5℃ to 40℃) to ensure winter degradation efficiency of ≥80%.

III. Functional Configurations and Environmental Protection Systems
Sanitary fixtures include water-saving squat toilets (6L flush volume per use), sensor-activated faucets, and stainless steel handwashing basins; the environmental protection system is equipped with biological degradation fecal tanks (0.5m³ per cubicle) and activated carbon deodorization devices (with an air exchange frequency of ≥5 times per hour). For winter protection, electric tracing systems (power of 20W/m) and insulated water tanks (0.3m³, wrapped with 50mm rock wool) prevent pipeline freezing. The total construction period is 45 days, divided into three stages: prefabrication (15 days), on-site installation (20 days), and commissioning and acceptance (10 days).

IV. Supplementary Rental Services
For short-term usage needs, local companies in Hunjiang District offer mobile toilet rental services, supporting 24-hour response times, direct warehouse supply, and coverage across the Hunjiang region.