Subway-inspection-pit small stand column and rail integral construction structure and method

Abstract

The invention provides a subway-inspection-pit small stand column and rail integral construction structure and method. The structure includes a rail support frame, bolt pre-embedding sleeves, connection bolts, nuts, connection plates and pre-embedded plates, wherein the rail support frame is used for erecting two parallel rails; a subway inspection pit is formed between the two parallel rails, thetwo sides of each rail are provided with the connection plates which extend a certain distance toward the outer side in the horizontal direction respectively, the connection plates are provided withfirst bolt holes used for making the connection bolts pass through, the pre-embedded plates are arranged below the rails and the connection plates on the two sides, the connection bolts pass through the first bolt holes of the connection plates and second bolt holes of the pre-embedded plates, the upper ends and lower ends of the connection bolts are tightly locked with the bolt pre-embedding sleeves through nuts respectively, the bolt pre-embedding sleeves stretch into reinforced bars of small stand columns, that is, the rails are used for reversely fixing the bolt pre-embedding sleeves, raillaying is completed at a time, the rail erecting accuracy is ensured, secondary adjustment of the rails is avoided, finished construction products can be protected, and the construction period can beshortened.

Description

technical field

[0001] The invention relates to the field of construction, in particular to an integrated construction structure and method of small columns and tracks in a subway inspection pit. Background technique

[0002] Rail transit projects are developing rapidly in Shanghai, and subway parking lots are used for parking and maintenance of subways. Among them, the column type inspection pit is used for subway maintenance, and the column type inspection pit is composed of an inspection pit, a small column, and a track. In the past construction, the inspection pit and small columns were usually constructed by the civil engineering unit first, and then the rails were erected on the small columns by the track unit. However, the pre-embedded position accuracy of the embedded parts on the small columns often could not meet the requirements of the rail laying I accuracy. At the same time, the rail laying It is easy to cause some missing corners and damage to the completed sm...

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