Debris flow and landslide alarm system at highway tunnel mouth

Abstract

The invention discloses an alarm system for debris flow and landslides at expressway tunnel entrances, which is characterized in that it includes a waterproof aluminum box, a system drive circuit board, a capacitive mud level sensor, an infrared forward scattering visibility sensor, a first LED alarm display screen, The first voice alarm, the second LED alarm display and the second voice alarm, a system drive circuit board is placed in the shell cavity of the waterproof aluminum box; the first LED alarm display and the first alarm are fixed at a distance of 300 meters from the tunnel entrance. The voice alarm is fixed with the 2nd LED alarm display screen and the 2nd voice alarm at 300 meters away from the other end of the expressway tunnel. The invention can not only give an alarm to the vehicle when the tunnel mouth is blocked by mud-rock flow or landslide under the environmental condition of good visibility, but also can give an alarm to the vehicle when the tunnel mouth is blocked by mud-rock flow or landslide under the environmental condition of low visibility weather. Avoid crashing into blocked tunnel mouths.

Description

technical field [0001] The invention relates to an alarm device, in particular to an alarm system for mud-rock flow and landslide at the entrance of an expressway tunnel. Background technique [0002] Due to the rapid development of the expressway, the expressway needs to be cut and straightened, and the long winding mountain road is changed into a tunnel directly passing through the mountain, which not only saves driving time, reduces fuel consumption, but also greatly improves safety, so the tunnel built more and more. However, the existence of tunnels faces many potential disasters. In addition to the abnormal climate in recent years, heavy rain, heavy fog, haze and other low-visibility weather often occur, and tunnels are generally located under mountains. The damage to the mountain structure, coupled with the fact that the mountain is prone to debris flow and landslide disasters due to the long-term erosion of the mountain, makes the mountain soil block the tunnel entr...

AI Technical Summary

Problems solved by technology

However, the existence of tunnels faces many potential disasters. In addition to the abnormal climate in recent years, heavy rain, heavy fog, haze and other low-visibility weather often occur, and tunnels are generally located under mountains. The damage to the mountain structure, coupled with the fact that the mountain is prone to debris flow and landslide disasters due to the long-term erosion of the mountain, makes the mountain soil block the tunnel entrance. When the visibility is good, people can see that the tunnel entrance is blocked. There is a driver not paying attention to the blockage of the front tunnel entrance, which leads to a series of rear-end collisions caused by the brakes when the tunnel entrance is reached. It is easy for the human eye to see that the entrance is blocked, which is more likely to cause major traffic accidents, and when the tunnel entrance is blocked, there are still vehicles at the tunnel entrance at the other end of the tunnel to enter the tunnel. It is not good, coupled with the weather conditions of congestion and low visibility, it is even more difficult to see whether the tunnel entrance is blocked, so it is easy to cause traffic accidents, and in serious cases, it will also lead to a chain car collision, causing major personal losses and economic losses. loss

[0003] In the prior art, there is a technology for detecting debris flow and alarming, but there is no alarm device for debris flow and landslides at the highway tunnel entrance, and there is no alarm device for debris flow and landslides at the highway tunnel entrance under low visibility conditions.

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