Safe passage device used in tunneling construction collapse
A technology for safe passage and tunnel construction, which is applied in safety devices, earthwork drilling, mining equipment, etc., can solve the problems of complex construction, large space occupation, and high cost, and achieve universal practical value, small space occupation, and small construction interference Effect
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[0013] see figure 1 and 2 , the embodiment of the present invention is provided with circular lifesaving pipe 2 and high-pressure gas supply device ( figure 1 and 2 not shown in). The pipe wall 3 of the annular lifesaving pipe 2 is a hollow sealed pipe wall, and the cross-sectional shape of the annular lifesaving pipe 2 is the shape of a swimming buoy. The pipe wall of the annular lifesaving pipe 2 is provided with an air inlet and outlet valve ( figure 1 and 2 not shown), the inlet and outlet valves are connected to the high-pressure gas outlet of the high-pressure gas supply device, and the wall material of the hollow sealing pipe wall of the annular lifesaving pipe 2 is formed by laminating 5 layers of rubber layers and at least 3 layers of carbon fiber layers Composite material, the inner and outer surfaces of the hollow sealed pipe wall are both rubber layers, and the carbon fiber layer is arranged between the two rubber layers. The annular lifesaving pipe 2 is laid...
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