Multilayer Casing Rescue System and Implementation Method for Collapsed Tunnel Engineering

Abstract

The invention relates to a multi-layer sleeve rescuing system for tunnel project collapse and an implementation method of the multi-layer sleeve rescuing system. Soil texture and sandy tunnels are poor in surrounding rock and prone to collapse in the construction process, a traditional rescuing mode is generally that a rescuer uses wood supports on a tunnel face for forming a firm tripod structure and rapidly excavating a rescuing channel, so that time is consumed, and construction safety can not be guaranteed. The multi-layer sleeve rescuing system comprises a multi-layer sleeve longitudinally arranged in a collapse body along a tunnel, the sleeve comprises a large-caliber steel pipe, a medium-caliber steel pipe and a small-caliber steel pipe in sequence from outside to inside, an emergency conveying pipe is arranged in the collapse body on one side of the multi-layer sleeve and is in parallel with the multi-layer sleeve, and multiple prospect holes are formed in the circumferential direction of the multi-layer sleeve and are in parallel with the multi-layer sleeve penetrating through the collapse body, the rescuing channel is broken through within the shortest time, and a trapped person climbs out with the help of a rescuing rope to be out of danger. The targeted multi-layer sleeve is selected and used for the soil texture and sandy tunnels for performing collapse rescuing, rescuing time is effectively shortened, and new collapse accidents are effectively prevented from occurring under the disturbance of rescuing construction.

Description

technical field [0001] The invention relates to tunnel engineering collapse rescue equipment, in particular to a multi-layer casing rescue system for tunnel engineering collapse and an implementation method thereof. Background technique [0002] The surrounding rock of soil and sandy tunnels is poor, and it is easy to collapse during construction. Moreover, soil tunnels are different from rock tunnels. It is easy to cause hypoxia on the face of the face and cause the trapped people to suffocate and die. At the same time, after the tunnel collapses, the collapse section is extremely unstable, and new collapses may occur at any time. In order to ensure the safety of the rescue and minimize the trapped time of the trapped people, it is necessary to carry out the rescue safely at the maximum speed. The traditional rescue method is generally that the rescuers use wooden supports on the tunnel surface to form a solid tripod structure and quickly excavate the rescue channel; or r...

AI Technical Summary

Problems solved by technology

The traditional rescue method is generally that the rescuers use wooden supports on the tunnel surface to form a solid tripod structure and quickly excavate the rescue channel; or re-excavate the rescue channel on the outer layer of the tunnel, but the effect is not obvious, time-consuming and safe to construct. sex is not guaranteed

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