Structure for protecting municipal pipeline

The invention discloses a structure for protecting a municipal pipeline. The structure is characterized in that stress relief holes are formed in the position away from a newly-built building by 15-20 meters, freezing pipes are arranged at the position away from the stress relief holes by 7-9 meters and are arranged in three rows, each row of freezing pipes is arranged in an arc shape, and an arc-shaped freezing wall is formed after freezing construction is completed; every two adjacent rows of freezing pipes are arranged in a quincuncial and staggered mode, temperature measuring pipes are arranged between every two adjacent freezing pipes at the ends, and the depth of the temperature measuring pipes is equal to the depth of the freezing pipes; the freezing pipes are connected through screw threads and sealing agents, repairing welding is carried out on joints, and therefore the concentricity and the welding strength between the pipes can be guaranteed; the pressure of the freezing pipes is controlled to be 0