Drainage box culvert manholes and drainage box culvert maintenance method

Abstract

The invention relates to drainage box culvert manholes. The drainage box culvert manholes are characterized in that the manholes are arranged at intervals in a drainage box culvert, and a sliding gateinserting slot is formed in each manhole; and a detachable sliding gate matched with the corresponding sliding gate inserting slot is arranged in each sliding gate inserting slot, sliding gate holesmatched with the sliding gates are formed in the positions, located above the sliding gate inserting slots, of the top of the box culvert, first pressure cover plates are arranged on the sliding gateholes, square holes are formed in the positions, located on the front and rear of the inserting slots, of the top of the box culvert, and second pressure cover plates are arranged on the square holes.By means of the drainage box culvert manholes, the rapid water cutoff can be realized, non-water-stop operation is basically realized, the risk of construction with water is avoided, water stop is not required in branch line pumping stations, and the drainage box culvert manholes have the advantages of reducing the operation complexity and influence of the process of dredging or repairing the boxculvert.

Description

technical field [0001] The invention belongs to the technical field of drainage, in particular to an inspection well for a drainage box culvert and a method for inspecting the box culvert. Background technique [0002] With the introduction of the three-year action to improve the quality and efficiency of urban sewage treatment and the improvement of the return period standard for rainwater drainage design, the demand for new construction and renovation of urban drainage pipes is increasing. Due to the needs of urban construction, water treatment facilities are far away from the city center, drainage needs to be transported over long distances, and some drainage pipes need to be in the form of box culverts. The construction of drainage box culverts basically cannot realize one use and one standby, otherwise the construction investment will be huge. And after the drainage box culvert is put into operation, it will run without interruption, and if it needs to be dredged or ov...

AI Technical Summary

Problems solved by technology

The construction of drainage box culverts basically cannot realize one use and one standby, otherwise the construction investment will be huge

And after the drainage box culvert is put into operation, it will run without interruption, if it needs to be dredged or repaired, it will bring certain difficulties

[0003] In order to achieve dredging or maintenance, the usual practice is to temporarily block the water in the box culvert when the flow rate is low, and then transfer the water. If it is a pressure box culvert, the branch line pump station is required to cooperate with the water stop. The operation process is complicated and the impact area is large.

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