Research And Analysis On Mechanical Propetries Of Cabie Plane Cross

With the social progress and economic development, urban cable tunnel becomethe development direction of modern city type grid. In the cable tunnel cross tunnelmodel is bound to be more and more, as a kind of design and construction ofrelatively complex structures, the present stage also lacks the correspondingspecification and data, this paper aiming at these problems to do the relevant research.Cross collected in this paper the research results of the tunnel, this paperintroduces the domestic research of cross tunnel, the existing cross tunnel design andconstruction methods are summarized, the methods of cable tunnel cross section ofthe reference for the design and construction.Based on the finite element numerical simulation method, three (four) cabletunnel is established through columnar structure, the dome structure, shaft structuremodel, get the cross tunnel supporting system of the internal force and displacement,and the safety coefficient calculation, the selection scheme and design method ofstructure types; In this paper, three (four) columnar structure and (four) through thearch set of supporting system of the internal force and displacement of arch structureand engineering economy is analyzed and compared, and puts forward the arch archstructure and the general scope of columnar structure.This paper, ansys finite element software to simulate the cable tunnel is three(four) columnar structure construction process, analyzes the three (four) throughcable tunnel columnar structure and in the whole section excavation method and thestep excavation displacement of two kinds of working conditions of surrounding rockand supporting structure, in combination with the working condition of theconstruction time, identify the most reasonable construction scheme, the conclusioncan be similar to the design and construction of cable tunnel cross section forreference.