A composite lining structure of corrugated steel plate and steel truss for tunnel

Abstract

The invention relates to a combined lining structure of corrugated steel plate and steel truss for tunnels, which is suitable for underground tunnel engineering constructed by drilling and blasting method and similar construction methods. The corrugated steel truss, the corrugated steel plate initial lining is assembled and formed by a plurality of prefabricated corrugated steel plates in the circumferential and longitudinal directions through longitudinal joints and circumferential joints respectively, and the corrugated steel plates are respectively at the longitudinal joints and the circumferential joints. Steel plate grooves are provided, and waterproof sealing is realized by filling the space formed by the steel plate grooves of adjacent corrugated steel plates. Compared with the prior art, the invention has the advantages of simple form, high precision, high rigidity, The single block has the advantages of light weight, suitable for intelligent construction of tunnel engineering, strong self-waterproof ability and good durability.

Description

technical field [0001] The invention relates to the field of tunnel engineering, in particular to a combined lining structure of a corrugated steel plate and a steel truss for tunnels. Background technique [0002] The traditional tunnel lining structure uses reinforced concrete as the secondary lining. With the continuous increase of the tunnel section, the thickness of the reinforced concrete secondary lining also continues to increase, and the weight of the lining structure accounts for an increasing proportion in the load calculation, resulting in The economy of reinforced concrete secondary lining structure is getting worse and worse. Therefore, it is necessary to develop a light structure for large-section tunnel support structure. [0003] With the continuous development of tunnel engineering, there are more and more application cases of corrugated steel plate lining structure in underground tunnel engineering using drill-and-blast method and similar construction meth...

AI Technical Summary

Problems solved by technology

[0002] The traditional tunnel lining structure uses reinforced concrete as the secondary lining. With the continuous increase of the tunnel section, the thickness of the reinforced concrete secondary lining is also increasing, and the proportion of the lining structure's self-weight in the load calculation is increasing, resulting in The economy of the reinforced concrete secondary lining structure is getting worse and worse. Therefore, it is necessary to develop a lightweight structure for the large-section tunnel support structure

[0003] With the continuous development of tunnel engineering, there are more and more application cases of corrugated steel plate lining structure in underground tunnel engineering constructed by drilling and blasting method and similar construction methods. However, in the existing cases, the corrugated steel plate lining structure is mainly used for temporary lining The supporting replacement section steel (or grid rigid frame), combined with sprayed concrete, waterproof board and molded secondary lining, etc. constitute the tunnel support and waterproof system, which has not fully utilized the lightweight steel structure, high-precision factory prefabrication, rapid assembly construction, Adapt to the characteristics of intelligent construction as much as possible

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