How to determine the vertical garbage passage size of catering buildings?

Chapter III Construction Site Management Article 13 The construction unit shall set up a continuous and closed enclosure around the construction site. The enclosure on the construction site shall meet the following requirements: (1) The enclosure shall be made of hard materials such as color steel pressed plates. Brick walls with a height of 30cm and a thickness of 24cm should be set below the enclosure to prevent sludge and sewage from overflowing the enclosure. The enclosure must be stable, safe, neat and beautiful, painted with natural colors and other paints and patterns that are in harmony with the surrounding environment, and the surface should have propaganda slogans to publicize the safety and civilized construction regulations of the industry or the enterprise spirit and culture. (2) The enclosure height of construction sites on both sides of major roads, airports, stations and squares in urban planning areas shall not be less than 2.5 meters, and in other areas shall not be less than 1.8 meters. (3) The construction site is less than 5 meters away from schools, hospitals and residential buildings. , a shell with noise reduction function should be set. (four) the enclosure of municipal engineering, road maintenance and underground pipeline laying engineering can be set continuously, or set in sections according to the progress of the project, and closed construction can be adopted. Under special circumstances, if the enclosure cannot be set up, safety warning signs should be set up, and isolation measures should be taken in the prominent position of the project. (5) It is strictly forbidden to pile up materials and appliances by fences. , and the shell is used as a support for retaining soil, water retaining wall and mechanical equipment. Article 14 A closed metal gate shall be set on the construction site. (a) the width of the gate is not less than 7 meters, the height of the gate head is not less than 4.2 meters, and it meets the requirements of fire control. The gate shall not be perspective, and the height of the door leaf shall be suitable for the enclosure, and it shall be steel double-fold split or electric stainless steel push-pull type. ...