Aiming to solve the problems of high difficulty and low degree of automation in the construction of fully prefabricated internal structures in single-hole tunnels with 2 tracks,utilize the advantages of fully prefabricated internal structure and improve the construction efficiency,promote the scope of its application,based on Shanghai airport contact line,this paper elaborates on the form of fully precast internal structures,proposes automated construction technology and construction process for internal structures including precast under-track structures and partition walls.Eventually,the synchronous and automatic assembly of fully prefabricated internal structures in a single-hole tunnel with 2 tracks is realized through construction practice.The results indicate that,the internal structure can realize high-efficiency and high-precision construction,the automated construction equipment developed effectively solves the problem of difficulty in the construction of prefabricated components,the proposed automated internal structure construction technology achieves good results in the implementation.
维普
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