Inverted construction method for integral ballast bed pouring in separate tunnels in subway sections
An integrated ballast bed and construction method technology, applied in roads, buildings, tracks, etc., can solve problems such as easy cracking of ballast bed concrete, slow construction progress, and pollution on the construction site, so as to shorten pumping distance, increase load capacity, and reduce construction pollution effect
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[0019] The reverse construction method of integral ballast bed pouring in the separate tunnel of the subway section, a. Assemble the rail bar and hoist it on the rail transport vehicle, and then push the rail bar to the track laying work surface by the rail transport vehicle;
[0020] b. The rail row is gradually laid in place towards the far end of the tunnel by the track laying unit, and sand pillows 16 are laid at intervals below the sleepers 15 at positions corresponding to the track 14 until the section is connected to form a longitudinal temporary rail transit logistics channel;
[0021] c. Set splints on both sides of the rail waist at the joint of any two rails 14, and use U-shaped clamps to fix them firmly;
[0022] d. Make the rail-type concrete pump pipe bracket. The rail-type concrete pump pipe bracket is composed of several pump pipe bracket bodies. The pump pipe bracket body includes the frame 1, the left and right sides of the bottom end of the frame 1 There are...
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