Multi -functional structures of integral type utility tunnel

The utility model provides a multi -functional structures of integral type utility tunnel, its characteristics are: with between equipment control, vent and dog -house arrange the setting in proper order and forms a body structure on the roof of utility tunnel owner corridor, sets up in one end between equipment control, one side of vent and equipment control adjacent setting within a definite time set up the smoke protection valve of preventing fires on the partition wall between the two. The vent opposite side passes through the mid -board to be connected with the dog -house, an equal take the altitude above ground level. Establish the 2nd smoke protection fire prevention valve between vent and the utility tunnel owner corridor, establish a department in the mid -board below and preventhot wall, prevent that hot wall divides this section utility tunnel owner corridor into two fire compartment. Spatial position and correlation through each structures of rationally arranging make it to become the complex who