Multilayer Casing Rescue System and Implementation Method for Collapsed Tunnel Engineering
A multi-layer casing and tunnel engineering technology, applied in earth drilling, safety devices, mining equipment, etc., can solve problems such as ineffective, unguaranteed, time-consuming construction safety, etc., to shorten rescue time, The construction progress is fast and the effect of meeting the rescue requirements
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[0022] The implementation method of the multi-layer casing rescue system of tunnel engineering collapse is realized by the following steps:
[0023] Step 1: Construct the emergency conveying pipe 1 inside the collapsed body along the longitudinal direction of the tunnel, send emergency communications, food, etc. into the collapsed body, and at the same time determine the shape of the collapsed body through the emergency conveying pipe 1 to determine the length of the rescue channel;
[0024] Step 2: Make 3-5 probe holes 2 inside the collapse along the longitudinal direction of the tunnel to determine the spatial position of the rescue channel;
[0025] Step 3: Set the casing platform 3 at the bottom of the collapsed body, use the on-site construction machinery to push in the large-diameter steel pipe 4 with a diameter of 70-80cm along the longitudinal direction of the tunnel, and manually remove the ballast every 2m;
[0026] Step 4: Use the large-diameter steel pipe 4 that wa...
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