Construction method of entrance section of loess tunnel passing through landslide
A technology for loess tunnels and construction methods, which is applied to tunnels, tunnel linings, and earth-moving drilling and mining, etc., can solve problems such as low bearing capacity, high construction difficulty, and interference.
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[0168] like figure 1 A construction method for the entrance section of a loess tunnel passing through a landslide body is shown. The entrance section 10 of the tunnel to be constructed is a straight tunnel section passing through the landslide bodies 1-4 to be treated, and the front end of the straight tunnel section is the tunnel entrance section. Opening 2 and its rear end is the rear end of the inlet section, see details figure 2 The rear part of the landslide body 1-4 that needs to be treated is supported above the front of the upper soil layer 14, and the front part of the upper soil layer 14 is the sliding bed located below the landslide body 1-4 to be treated, and the landslide needs to be treated. Body 1-4 is the landslide body of the loess landslide and it is a landslide body that slides from back to front on the sliding bed; the front and middle parts of the landslide body 1-4 to be treated are supported on the lower soil layer 13, the upper soil layer 14 is suppor...
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