Applicability Analysis of the Municipal Deep Tunnels
In the process of urban development,there are common problems of tight land resources,the utilization of medium and shallow underground space that is close to the limit,and the planning of large-scale municipal corri-dors that is difficult to implement.Based on the concepts of 3D development of territorial space planning and com-prehensive development of underground space,excellent cases of municipal deep tunnels are absorbed and learned at home and abroad.The municipal deep tunnels are subdivided into six categories of deep tunnels for raw water protection,deep tunnels for sewage transfer,deep tunnels for rainwater discharge,deep tunnels for pollution con-trol,multifunctional deep tunnels and deep tunnels for electric power.The planning and construction are totally considered from the perspective of problem orientation,program demonstration,urban socio-economic conditions,etc.The appropriateness and feasibility of various types in first-tier city planning and construction are further ana-lyzed.Following the concept of high-quality development of urban infrastructure,and taking into account the non-renewable deep underground space and the large scale,large span and wide influence of deep tunnels,etc.,the control elements of deep tunnels in the plane and vertical direction are put forward.It is suggested that the municipal deep tunnels should not be comprehensively carried out,but rather utilized moderately as an auxiliary means of constructing municipal corridors.
municipal deep tunnelraw water protectionsewage transferrainwater dischargepollution control
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