Opening treatment method for pipe-roofing continuous perforation

Abstract

The invention relates to an opening treatment method for pipe-roofing continuous perforation. Pipe-roofing opening water-stopping is characterized in that a circular water-stop rubber seal board is disposed at each opening, and a sector rubber pressure board is connected and fastened to an underground structure of each hole through expansion bolts. The rubber seal boards are mutually tangent at the continuous openings and are mutually overlapped to form a whole. A grouting pipe is pre-embedded into an opening structure for water stopping at the juncture inside each opening, and the opening and the structural juncture are filled with grout for water stopping after entry of the grouting pipe into the hole. By the opening treatment method, impact on adjacent pipe roofs can be reduced greatly, the water-stop effect of the openings and the water-stop effect of the juncture of each opening with the pipe roof are enhanced, and the opening treatment method is superior to the traditional methods in terms of technical feasibility, operating efficiency and implementation effect. Presently, the opening treatment method is applied to underground channel pipe roofing at a source N0.33 in the Shanghai bund.

Description

technical field [0001] The invention relates to a construction method for opening a hole in the pipe curtain enclosure of an underground structure, in particular to a construction method for lap joint treatment of a water-stop at the hole opening and a water-stop construction method at the junction of the hole and the structure in the case of continuous hole opening. Background technique [0002] At present, it is often necessary to open holes in underground structures in municipal engineering, such as pipe jacking engineering, shield engineering and pipe curtain engineering. Pipe jacking and shield tunneling only need to open 1 or 2 holes in the underground structure, and the distance between the holes is relatively long. The water stop treatment is generally done by mirror surface treatment or the hole casing combined with water stop steel plates, but for continuous structural For the pipe curtain project with openings, the water stop treatment is more cumbersome. Due to t...

AI Technical Summary

Problems solved by technology

Pipe jacking and shield tunneling only need to open 1~2 openings in the underground structure, and the distance between the openings is relatively long. The water-stop treatment is generally done by mirror surface treatment or the hole casing combined with water-stop steel plates, but for those that need continuous structural For the pipe curtain project with openings, the water stop treatment is relatively cumbersome. Due to the continuous overlap of the opening, if the measures of setting mirrors at the opening are adopted, due to the continuity of the pipe curtain, the mirrors need to be arranged continuously, the workload is large, and the adjacent mirrors are easy to be damaged. destroy

In addition, when pre-burying the hole casing and water-stop steel plate, when the adjacent pipe curtain is jacked, the casing becomes its obstacle and cannot be jacked in place. Therefore, the two methods are not suitable for the hole treatment in the case of continuous opening

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