Split mounting type secondary lining arch segment jacking device for tunnel

Abstract

The invention discloses a split mounting type secondary lining arch segment jacking device for a tunnel. The device comprises a jacking power mechanism installed on a trolley body frame; the upper part of the jacking power mechanism is connected with a cross beam, and the jacking power mechanism is used for driving the cross beam to move up and down; secondary lining arch segments are placed on the cross beam; two guiding elements are arranged on the trolley body frame and are respectively fixed at the left side and right side of the jacking power mechanism; a guiding hole is formed in each guiding element in a penetrating way from top to bottom; two stand columns are arranged under the cross beam and are respectively and fixed at the left side and right side of the jacking power mechanism; the lower parts of the two stand columns are respectively arranged in the corresponding guiding holes; when the cross beam moves up and down, the stand columns move up and down in the correspondingguiding holes. The split mounting type secondary lining arch segment jacking device for the tunnel can more conveniently realize the rapid and stable lifting of segments. The device is simple in structure and low in cost, and can effectively reduce the cost; by adopting hydraulic drive, the device has the advantages of being environmentally-friendly and free from pollution; due to the unique structural design, the subsequent butt joint operation for trolley installation is enabled to be simple and efficient.

Description

【Technical field】 [0001] The invention belongs to the technical field of tunnel concrete lining construction, and in particular relates to a segment jacking device for an assembled secondary lining arch segment of a tunnel. 【Background technique】 [0002] The secondary lining construction of traditional mountain tunnels usually uses a lining formwork trolley for integral pouring, and is connected with the inverted arch and side wall to form a closed ring. The length of each ring is generally 12m or 9m. This method is mature and the overall structure is stable and stress-resistant. Strong capacity; however, with the increase of the operation time of the railway tunnel using this method, there are many quality problems in the secondary lining, which are mainly reflected in the following aspects: ① cracking and water leakage in the secondary lining; ② Exposed tendons and honeycomb pockmarks appear on the surface of the secondary lining; ③ The arch lining often has quality defec...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a tunnel assembly-type secondary lining arch segment jacking device to solve the problem of the limited lifting height of the hoisting equipment caused by the size limitation of the tunnel vault, and to facilitate the prefabricated segment of the vault from the hoisting equipment. Problems with the transfer to the segment mounting device

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