An urban tunnel ventilation test device with ramps
A technology of tunnel ventilation and test equipment, which is applied in mine/tunnel ventilation, mining equipment, earthwork drilling and mining, etc. It can solve the problems that it is difficult to evaluate the influence of main tunnel ventilation and sewage discharge, shorten the production cycle, ensure accuracy, The effect of saving production cost
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[0059] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.
[0060] Such as figure 1 As shown, the present embodiment is a kind of urban tunnel ventilation test device with a ramp. The prototype of the urban tunnel ventilation test device is the Zijingang Tunnel in Xihu District, Hangzhou City. The length of the slot is 186m; the total length of the B ramp tunnel is 560m, and the length of the grounded U-shaped slot is 186m; the total length of the C ramp tunnel is 159m, and the length of the grounded U-shaped slot is 130m. The cross-section of the main tunnel is a single-box double-chamber rectangular section with a net height of 5.5m and a net width of 9.75m, of which the net height of the fan section is 6.7m. The clear height of the ramp is the same as that of the main tunnel, the clear width is 7.5m, and the inner wall is made of rough concrete.
[0061] The urban tunnel ventilation test ...
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