Specifications for Setting Up Mobile Toilets in Civil Air Defense

The specifications for setting up mobile toilets (or similar facilities) in civil air defense projects should be comprehensively determined based on the project type, functional requirements, and the number of people seeking shelter. The specific requirements are as follows:

1. Scope of Setup Related to Project Type Not all civil air defense projects require toilets. Based on functional divisions, specialized team equipment shelters, power station rooms, and civil air defense garages may not require toilets during wartime; medical rescue projects, due to the need to meet sanitary conditions, should preferably be equipped with flush toilets; personnel shelters, specialized team member shelters, and civil air defense material warehouses, which primarily serve for temporary personnel sheltering, should preferably be equipped with dry toilets (portable toilets). If the project already has flush toilets during peacetime, dry toilet positions should still be reserved according to the number of people seeking shelter during wartime to ensure emergency use.

2. Toilet Types and Applicable Scenarios

• Flush Toilets: Suitable for medical-type civil air defense projects, requiring supporting sewage sumps and submersible sewage pumps to discharge feces through pipelines. These toilets have high requirements for the drainage system, ensuring that sewage does not overflow during wartime.
• Dry Toilets (Portable Toilets): Suitable for scenarios such as personnel shelters, where portable toilets should be professionally packaged and stacked centrally, with the building area per portable toilet controlled between 1.00 and 1.40 square meters. The dry toilet sump is only used to collect ground wastewater, and a separate sewage pump room should be set up to reduce odor diffusion.

3. Supporting Facilities and Layout Requirements

• Antechamber and Toilet Cubicle Ratio: Toilets should have an antechamber, with the ratio of male to female toilet cubicles set at 1:1 to ensure convenience of use.
• Standard for the Number of Toilet Bowls: Male toilet bowls should be configured at a rate of 40 to 50 people per bowl, and female toilet bowls at a rate of 30 to 40 people per bowl; the number of flush urinals can be set by referring to the configuration of male toilet bowls, with each 5 meters of urinal trough equivalent to the capacity of one urinal.
• Location Selection: Toilets should preferably be located near the end of the exhaust system, utilizing the ventilation system to quickly discharge foul air and reduce its impact on the shelter area.

4. Supplementary Specifications for Special Scenarios Medical rescue projects and specialized team member shelters should set up a chemical defense communication duty room near the air intake, with an area determined as 10 to 12 square meters (for medical rescue projects) or 8 to 10 square meters (for specialized team shelters) to ensure wartime chemical defense monitoring and communication needs.

The above specifications are based on the Design Code for Civil Air Defense Basements GB50038-2005 (2003 edition) and industry practice summaries, requiring comprehensive design based on the specific project function, number of people seeking shelter, and wartime needs.