CJJ 14-1987 Urban Public Toilet Planning and Design Standard CJJ14-87 CJJ14-1987 Standard download decompression password: www.bzxz.net

Engineering Construction Standard Full-text Information System
Ministry of Urban and Rural Construction and Environmental Protection of the People's Republic of China Urban Public Toilet Planning and Design Standard
CJJ14—87
1988 Beijing
Engineering Construction Standard Full-text Information System
Engineering Construction Standard Full-text Information System
Ministry of Urban and Rural Construction and Environmental Protection of the People's Republic of China Urban Public Toilet Planning and Design Standard
GJJ14—87
Editor: Beijing Municipal Institute of Environmental Health Sciences Approval Unit Location: Ministry of Urban and Rural Construction and Environmental Protection of the People's Republic of China Implementation date: June 1, 1988 Engineering Construction Standards Full Text Information System Engineering Construction Standards Full Text Information System (87) Chengbiaozi No. 635 According to the requirements of (84) Chengkezi No. 153, the "Urban Public Toilet Planning and Design Standard" compiled by Beijing Institute of Environmental Sanitation Sciences has been reviewed by our ministry and is now approved as a ministry standard with the number CJJ14-87, which will be implemented from June 1, 1988. If you have any questions or comments during the implementation process, please inform the Beijing Institute of Environmental Sanitation Sciences, the management unit of this standard, in writing.
Ministry of Urban and Rural Construction and Environmental Protection
December 2, 1987
Engineering Construction Standards Full Text Information System
Engineering Construction Standards Full Text Information System
Chapter 1
Chapter 2
Chapter 3
Appendix 2
Appendix 3
Appendix 4
Appendix 5
Public Toilet Planning…
Design of Public Toilet
Structural Diagram of Manure Interception Well
Structural Diagram of Through-Trough Anti-Ditch
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Minimum Horizontal Clearance Table of Underground Pipelines Between Each Other and From Buildings and Structures| |tt||Minimum vertical clearance of underground pipeline crossing
Minimum horizontal clearance of overhead power lines to buildings, structures and communication lines
Minimum vertical clearance of overhead power lines to buildings, structures and communication lines Appendix VI
Appendix VII
Minimum buried depth of underground pipelines
Engineering Construction Standards Full Text Information System
Engineering Construction Standards Full Text Information System
Chapter I General Provisions
Article 1.0.1 This standard is specially formulated to include the construction of public toilets in the detailed plan in accordance with the requirements of the overall urban plan, so that the planning, design, construction and management of public toilets meet the requirements of urban appearance and environmental sanitation, and better serve urban residents and floating population. Article 1.0.2 This standard applies to the planning, design, construction and management of urban public toilets, and can also be used as a reference for the planning, design, construction and management of public toilets in independent industrial and mining areas of counties and towns.
Article 1.0.3 The units that plan, design, construct and manage public toilets shall be responsible for implementing the provisions of this standard. Article 1.0.4 Environmental sanitation departments at all levels shall supervise and guide the design and construction of public toilets.
Engineering Construction Standards Full Text Information System
Engineering Construction Standards Full Text Information System
Chapter II Planning of Public Toilets
Article 2.0.1 Public toilets are part of urban public buildings and are indispensable environmental sanitation facilities that provide services to residents and pedestrians. When formulating detailed plans for new, rebuilt and expanded areas in cities, urban planning departments shall include the construction of public toilets in the plans.
Article 2.0.2 Public toilets shall be set up in the following areas in cities: 1. Both sides of squares and main traffic arteries;
2. Near public buildings such as stations, docks, exhibition halls, etc.; 3. Near scenic spots and historic sites, parks, markets, large parking lots, stadiums (halls) and other public places;
4. New residential areas and old residential areas.
Article 2.0.3 The spacing or service range of public toilets: The distance between public toilets on major busy streets should be 300-500m, and the distance between public toilets on streets with highly dense floating population should be less than 300m. The distance between public toilets on general streets should be about 750-1000m; The service range of public toilets in residential areas: 100-150m for unrenovated old residential areas and 300-500m for newly built residential areas (preferably built near commercial outlets in the area). Article 2.0.4 Planning indicators for the construction area of ​​public toilets: 1. Public toilets in new residential areas: The construction area indicator per thousand people is 6-10m2; 2. Public toilets in stations (including the square in front of the station), docks, stadiums (halls), etc.: The construction area indicator per thousand people (based on the maximum number of people gathered in one day and night) is 15-25m;
3. Public toilets in densely populated areas (mainly in the unrenovated areas of old cities); the construction area index per thousand people is 20-30m2;
4. The construction area index per thousand people (based on the floating population of one day and night) of street public toilets is 5-10m2.
Article 2.0.5 The scope of land use for public toilets: The open space within 3m from the outer wall of the public toilet is the scope of land use for public toilets. If the above requirements cannot be met due to conditions, it can also be built near other houses.
Article 2.0.6 In areas with conditions, attached public toilets should be gradually developed, and separate entrances and exits directly leading to the outdoors and management rooms should be set up. Article 2.0.7 The construction standards of public toilets: According to the importance of their location, they can be divided into three categories, see Table 1. Foreign-related units can exceed the first category standard. Dry toilets can refer to the standards of the third category of toilets. If it is urgent and there is a construction plan in the near future, temporary toilets can be built as appropriate.
Classification table of public toilet building standards
Applicable scope
Heating (maintenance) facilities
Indoor height (m)
Stool flushing equipment
Stool spacing
Open to the public for sightseeing
Points of interest Busy streets
Dark, independent
Toilets
Manual ceramic water tanks
Or advanced water savers
0.90~1.20
Stand-standing urinals
Engineering construction standard full text information system
Main streets
General streets
Determined by conditions and needs Determined by conditions and needs Refers to the northern heating area
Independent toilet or
Through groove surface tile
Centralized self-flushing water tank
0.85~1.20
Tile surface urinal
Through groove surface tile
Flush with water
0.85~1.20
Tile surface urinal
Determined by conditions
Determined by conditions and needs
Determined by conditions and needsDetermined by conditions and needsSkylight can be lowered
A certain proportion should be set
Toilet||Toilet paper for sale
Engineering construction standard full text information system
Floor and countertop
Indoor wall skirt|| tt||Ground drainage
Toilet partition
(septic tank)
Mosaic, etc.
Veiner bricks 1.5~
1.8m high partition
Board, with door
Mosaic,
Cylinder bricks, etc.
Veiner bricks 1.0~
Depending on conditions and requirements
Cement mortar finishing
1.0~1.2m high
Cement mortar finishing
1.2~1.5m high
Partition board is higher than
Partition board can be equipped with door
Ceiling and wall spraying
Ceiling inlaid with calcium plastic boardWww.bzxZ.net
Ceiling and wall Spray
etc. Wall spraying Cosmet Silver Cosmet Silver or other materials Cosmet Silver and other materials
Coordinate with the environment
Set according to the situation
Coordinate with the environment
Set as needed
Set as needed
Set according to the situation
Coordinate with the environment
Set as needed
Set as needed
Set according to the situation
The height of the partition board is measured from the countertop
If there are conditions for direct discharge
Septic tanks may not be built
Article 2.0.8
The location of the public toilet should be obvious, easy to find, and convenient for feces to be discharged into the urban drainage system or mechanically pumped. Estimated indicators of the area inside the toilet: Each toilet seat (including the large 2.0.Article 9
The estimated construction area of ​​toilets (sitting seats, urinary standing seats, aisle width and other equipment, etc.) is 4 to 9m2. (7 to 9m2 for Class I toilets, 5 to 7m2 for Class II toilets, and 4 to 6m2 for Class III toilets).
Engineering Construction Standards Full Text Information System
Engineering Construction Standards Full Text Information System
Chapter III
Design of Public Toilets
Section I
Design Principles
Article 3.1.1 The design principles of public toilets are applicability, hygiene and economy; under the premise of facilitating the discharge and transportation of feces, proper attention should be paid to aesthetics. Section II Basic Design Provisions
Article 3.2.1 According to different usage conditions, the ratio of male and female (sitting) seats should be 1:1 or 3:2.
Article 3.2.2 The indoor net height of public toilets should be 3.5-4.0m (it can be appropriately lowered when skylights are installed). The indoor floor elevation should be at least 0.15m higher than the outdoor floor. If the septic tank is built underground indoors, the floor elevation should be determined by the septic tank drain outlet. The slope of the drain pipe should comply with the provisions of Table 2 to ensure the smooth discharge of septic tank sewage. Standard slope and minimum slope of drainage pipes
Standard slope
Minimum slope
Article 3.2.3
The ratio of the building ventilation and lighting area to the ground area of ​​public toilets should not be less than 1:8. If the lighting area of ​​the side windows on the exterior wall cannot meet the requirements, skylights can be added, and ground windows can be added in the south.
Article 3.2.4 The dimensions of each defecation span are 1.00~1.20m×0.85m～1.20m, and the dimensions of each urinal stand (including urinal) are 0.70m (depth)×0.65m (width). The distance between independent urinals is 0.80m. Article 3.2.5 The width of the aisle with a door opening outside the single-row toilet is preferably 1.30m; the width of the aisle with a door opening outside the double-row toilet is preferably 1.50m. The width of the aisle without a door is preferably 1.20~1.50m.
Article 3.2.6 The spans of various public toilets should not be exposed to the sight outside the toilet, and there should be partitions between the positions. The height of the partitions should not be less than 0.9m from the countertop. Article 3.2.7 The depth of the trough-type flush toilet shall not be less than 0.40m, the width of the bottom of the trough shall not be less than 0.15m, and the upper width shall be 0.20~0.25m. The first and second category public toilets shall have at least one wash basin each for men and women. If the number of (sitting) seats exceeds 10, it may be increased as appropriate. Each seat in the public toilet shall be equipped with a sturdy, corrosion-resistant hook for hanging objects. Article 3.2.9 The minimum height of the windowsill of a single-story public toilet from the indoor floor is 1.80m; the minimum height of the windowsill of a double-story public toilet from the floor is 1.50m. Article 3.2.10 When the number of toilets (sitting) seats in men's and women's toilets exceeds 20 respectively, double entrances and exits should be provided.
Article 3.2.11
~2m2.
The area of ​​the toilet management room is 5 to 12m2, and the area of ​​the tool room is 1. It is advisable for the male and female toilets to be flushed separately in the through-trough public toilet. For example, Article 3.2.12
When the flushing trough is shared, it must be flushed from the male toilet to the female toilet. It is better to set the urinal (tank) and the toilet (trough) in the male toilet in separate rooms. Article 3.2.13
When building a public toilet with more than two floors, the male urinal should be located on the ground floor. Article 3.2.14
The entrance and exit of the public toilet must be marked with obvious signs, including Chinese (English can be added for a type of toilet) and images. Article 3.2.15
Article 3.2.16
Public toilets should consider anti-fly and anti-mosquito facilities.
Trees and flowers should be planted around the toilet to beautify the environment. Article 3.2.17
The design of public toilets should use efficient and water-saving sanitary equipment as much as possible.
Section 3 Basic Requirements for the Construction of Public Toilets
Article 3.3.1 In order to prevent soil and groundwater pollution and facilitate the washing of toilets, the floor, platform, urinal and wall skirt shall be made of impermeable materials. The floor should have an appropriate slope (0.01~0.015), and a ditch or floor drain should be installed to drain the washing wastewater. Article 3.3.2 Toilet ventilation volume: Each toilet (sit) position shall not be less than 40m2/h, and the urinal position shall not be less than 20m2/h. The dry toilet shall appropriately increase its ventilation volume according to its exhaust conditions. ①
Article 3.3.3 Toilet ventilation should give priority to natural ventilation. When the ventilation volume is insufficient, mechanical ventilation should be added. The following measures should be considered during design: 1. Choice of building orientation: Try to make the longitudinal axis of the toilet perpendicular to the dominant wind direction in summer, and at the same time, comprehensively consider preventing solar radiation and summer rainstorms; 2. Increase the opening angle of doors and windows to improve the ventilation effect in the toilet, see Figure 1. 3. Increase the width of the eaves to guide the wind into the room, see Figure 2; Figure 1 The guiding function of the window sash
Figure 2 The wind guiding function of the eaves
4. When opening a skylight, a wind shield should be added to the outside of the skylight to ensure the ventilation effect. The method of adding the wind shield is shown in Figures 3 and 4. ≤5h
Figure 3 Parapet wall instead of wind shield
① Exhaust times per hour = heat volume (m) toilet volume (m3)
The ventilation times or ventilation volume of exhaust in the above formula are the ventilation times and ventilation volume of mechanical ventilation. This article is suitable for designs with higher standards and designs in cold areas. Engineering Construction Standard Full Text Information SystemArticle 17
The design of public toilets should use efficient and water-saving sanitary equipment as much as possible.
Section 3 Basic Requirements for the Construction of Public Toilets
Article 3.3.1 In order to prevent soil and groundwater pollution and facilitate the washing of toilets, the floor, counter, urinal and wall skirt shall be made of impermeable materials. The floor should have an appropriate slope (0.01~0.015), and a ditch or floor drain should be installed to drain the washing wastewater. Article 3.3.2 Toilet ventilation volume: Each toilet (sit) position shall not be less than 40m2/h, and the urinal position shall not be less than 20m2/h. The dry toilet shall appropriately increase its ventilation volume according to its exhaust conditions. ①
Article 3.3.3 Toilet ventilation should give priority to natural ventilation. When the ventilation volume is insufficient, mechanical ventilation should be added. The following measures should be considered during design: 1. Choice of building orientation: Try to make the longitudinal axis of the toilet perpendicular to the dominant wind direction in summer, and at the same time, comprehensively consider preventing solar radiation and summer rainstorms; 2. Increase the opening angle of doors and windows to improve the ventilation effect in the toilet, see Figure 1. 3. Increase the width of the eaves to guide the wind into the room, see Figure 2; Figure 1 The guiding function of the window sash
Figure 2 The wind guiding function of the eaves
4. When opening a skylight, a wind shield should be added to the outside of the skylight to ensure the ventilation effect. The method of adding the wind shield is shown in Figures 3 and 4. ≤5h
Figure 3 Parapet wall instead of wind shield
① Exhaust times per hour = heat volume (m) toilet volume (m3)
The ventilation times or ventilation volume of exhaust in the above formula are the ventilation times and ventilation volume of mechanical ventilation. This article is suitable for designs with higher standards and designs in cold areas. Engineering Construction Standard Full Text Information SystemArticle 17
The design of public toilets should use efficient and water-saving sanitary equipment as much as possible.
Section 3 Basic Requirements for the Construction of Public Toilets
Article 3.3.1 In order to prevent soil and groundwater pollution and facilitate the washing of toilets, the floor, counter, urinal and wall skirt shall be made of impermeable materials. The floor should have an appropriate slope (0.01~0.015), and a ditch or floor drain should be installed to drain the washing wastewater. Article 3.3.2 Toilet ventilation volume: Each toilet (sit) position shall not be less than 40m2/h, and the urinal position shall not be less than 20m2/h. The dry toilet shall appropriately increase its ventilation volume according to its exhaust conditions. ①
Article 3.3.3 Toilet ventilation should give priority to natural ventilation. When the ventilation volume is insufficient, mechanical ventilation should be added. The following measures should be considered during design: 1. Choice of building orientation: Try to make the longitudinal axis of the toilet perpendicular to the dominant wind direction in summer, and at the same time, comprehensively consider preventing solar radiation and summer rainstorms; 2. Increase the opening angle of doors and windows to improve the ventilation effect in the toilet, see Figure 1. 3. Increase the width of the eaves to guide the wind into the room, see Figure 2; Figure 1 The guiding function of the window sash
Figure 2 The wind guiding function of the eaves
4. When opening a skylight, a wind shield should be added to the outside of the skylight to ensure the ventilation effect. The method of adding the wind shield is shown in Figures 3 and 4. ≤5h
Figure 3 Parapet wall instead of wind shield
① Exhaust times per hour = heat volume (m) toilet volume (m3)
The ventilation times or ventilation volume of exhaust in the above formula are the ventilation times and ventilation volume of mechanical ventilation. This article is suitable for designs with higher standards and designs in cold areas. Engineering Construction Standard Full Text Information System
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