Mounting structure and mounting method of deep well pump pipe in civil air defense room of comprehensive building

The invention discloses a mounting structure and a mounting method of a deep well pump pipe in a civil air defense room of a comprehensive building. the pump pipe passes through a pump pit and entersa deep water well. The bottom of the pump pipe is connected to a water pump. A well head bearing frame, a second bottom plate and holt hoop iron above the second bottom plate are arranged in the pumppit. The holt hoop iron has two halves. The two halves of the holt hoop iron are connected to each other by bolts, and one of the two halves is welded to the second bottom plate. Anti-sway spring mechanisms are connected to the upper and lower ends of the water pump. The mounting structure and mounting method solve the problem in the prior art that the diameter of the well head of a deep well pumpin a civil air defense room is narrow, a construction work cannot enter to mount a pipeline bracket, and joint welds between a flange and the pump pipe are prone to crack, thereby resulting in high failure rate, short service