Flexible die for shield segment

Abstract

The invention discloses a flexible die for a shield segment. The flexible die for the shield segment comprises a bottom die body, a side die body and an end die body, wherein the cavity for the segment is defined by the bottom die body, the side die body and the end die body, the side die body and the end die body are hinged to the bottom die body and are connected with the bottom die through detachable structures, and positioning water stopping rubber is arranged at the positions where the side die body and the end die body are matched with the bottom die body. By the adoption of the flexible die for the shield segment, disassembly is convenient, the structure is simple, and due to the fact that the side die body and the end die body are in face sealing with the bottom die body in a matched mode, the amount of leaked concrete grout is reduced, cleaning is convenient, precision is guaranteed, and the production efficiency of segments is improved.

Description

technical field [0001] The invention relates to a tunnel lining segment mold, in particular to a shield segment flexible mold. Background technique [0002] Shield construction is the safest and most effective construction method for subway construction, and has been gradually adopted by construction units. The most critical part of shield construction is tunnel lining segment; with the rapid development of shield construction, the demand for tunnel lining segment is increasing day by day. Tunnel lining segment is the main concrete prefabricated component of subway shield construction, its production process is more complicated, and its requirements are becoming more and more stringent. Among them, the pouring of each shield segment needs to be completed by means of a segment mold. [0003] Segment mold includes bottom mold, side mold, end mold and cover plate. In the continuous segment prefabrication, the side molds and end molds of the segment mold need to be opened con...

AI Technical Summary

Problems solved by technology

In the continuous segment prefabrication, the side molds and end molds of the segment mold need to be opened continuously, and cleaning work must be carried out after each use. In the prior art, the vibration efficiency is low, and the number of locking bolts of the side molds and end molds is large. The structure is relatively complicated and the positioning accuracy is low. The mating surfaces of the side molds, end molds and bottom molds adopt rigid contact and are not compact and easy to leak. It is difficult to clean up. In the continuous segment prefabrication The locking operation of the mold is time-consuming, laborious and intensive, and the cleaning work is difficult and easy to miss, which affects the production efficiency and accuracy of segment prefabrication

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