1. Municipal engineering: Manholes play an important role in municipal engineering, such as sewer systems, sewage treatment plants, rainwater collection tanks, etc., to facilitate pipeline maintenance, dredging, and upkeep, ensuring normal operation and maintenance.
2. Industrial and mechanical equipment: Manholes are also widely used in industrial fields and mechanical equipment, such as petroleum, chemical, energy and other industries, to provide convenience for equipment maintenance, upkeep, ventilation and exhaust.
3. Roads and traffic: Manholes are widely used in traffic areas such as roads, roads, and sidewalks. They provide convenient personnel access and allow for maintenance, inspection, and cleaning of underground pipelines.
4. Public facilities: Many public facilities require manholes for personnel access and maintenance operations, such as power supply, communication lines, gas pipelines, etc. Manholes can provide safe and reliable access points to ensure the normal operation of these facilities.
5. Buildings: In buildings, manholes are often used in basements or underground spaces to provide access for personnel to enter and maintain underground equipment and pipelines. They can also be used in exhaust systems, heating systems, and water supply systems.
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