Tunnel collapse treatment method capable of firstly arching and then filling
A treatment method and tunnel technology, which is applied in tunnels, tunnel linings, earthwork drilling, etc., can solve problems such as delays in construction progress, unstable rocks, casualties, etc., and achieve the goals of accelerating construction speed, shortening construction period, and reducing potential safety hazards Effect
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[0030] The structure of the present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, but it is not intended as a limitation of the present invention.
[0031] Such as Figure 1~4 As shown, the present invention discloses a tunnel collapse treatment method that first arches and then fills, including the following steps:
[0032] Step S1, set up a temporary I-steel arch frame under the original initial support adjacent to the landslide (that is, the initial support of the non-collapsed section adjacent to the landslide), and set up a temporary I-steel arch in the gap between the original initial support and the temporary I-steel arch. Wooden wedges are inserted inside to reinforce the original primary support, and multiple temporary I-steel arch frames are connected together through steel bars; that is, the primary support at the front of the collapsed body is strengthened to prevent the expansion of the collapse o...
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