Abstract:

In order to promote the collaborative development of rail transit and utility tunnel, systematically solve the urban development problems such as road zippers and traffic jam in cities, and rationally use the limited land resources, the collaborative construction of rail transit and utility tunnel is studied and discussed from the aspects of necessity and feasibility, and a concrete implementation program is given. The study results show that: (1) The collaborative construction of rail transit and utility tunnel can realize the rational layout and optimal allocation of urban space, save the land and costs, and improve the decision efficiency. (2) The planning area, technical requirements and construction methods of rail transit and utility tunnel are relatively consistent, and the feasibility of the collaborative construction is high. (3) Various departments involved need to set up a good communication management mechanism, coordinate multiple elements, and give full play to the leading role of project planning and overall coordination role of the general contracting units. (4) The relative position and construction plans of rail transit and utility tunnel should be determined rationally based on the depth of the utility tunnel, the rail transit tunnel, station and ancillary buildings, as well as the site conditions, implementation difficulty, construction costs and time requirements, etc.

Key words: underground works, rail transit, utility tunnel, collaborative construction, cutandcover method