Prevention device and prevention method used for blasting air shock waves in drilling and blasting tunnel

Abstract

The invention discloses a prevention device and a prevention method used for blasting air shock waves in a drilling and blasting tunnel. The device comprises a plurality of baffle units arranged on the side wall of the tunnel; the baffle units are arranged on the side wall of the tunnel in a bilateral symmetry manner; each baffle unit comprises a shock-resistant and high temperature-resistant baffle; each baffle is fixedly arranged on the side wall of the tunnel through a switch hinge; each baffle can rotate around the revolution axis of the corresponding switch hinge; each revolution axis is provided with a damper for providing damping for the rotation of the corresponding baffle; each baffle unit can be opened or closed under the action of the corresponding switch hinge, i.e. when blasting is performed on a tunnel face, each baffle unit is in a closed state so as to stop the shock waves; after blasting on the tunnel face is ended, each baffle unit is in an opened state, traffic in the tunnel and other construction cannot be influenced.

Description

technical field [0001] The invention relates to a preventive measure for tunnel blasting shock waves in tunnel holes, in particular to a preventive device and method for solving construction blast shock waves in tunnel holes. Background technique [0002] In recent years, with the rapid development of my country's national economy, the ever-expanding passenger and freight transportation has brought challenges to my country's transportation industry, and it is also a huge opportunity for the transportation industry. Considering factors such as economy, technology and environment, the construction of bridges and tunnels appears more and more in the line. In the mountainous areas where the transportation route passes, due to the restriction of harsh conditions such as topography and geology, the construction of tunnels often becomes a key factor in the utilization of routes and even underground space. In the design and construction process of many railway and highway tunnels, ...

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Problems solved by technology

Thirdly, if the shock wave enters the natural environment, the high-pressure, high-speed, high-temperature and high-energy shock wave will inevitably cause certain damage to vegetation and trees, causing damage to the natural environment

Finally, the sound waves generated during the blasting and the final attenuation of the shock wave, and the corresponding noise will also cause great disturbance to the living environment

[0006] Therefore, it is particularly important to prevent shock waves from drilling and blasting construction, but the design and construction of tunnels do not take the hazards of shock waves into consideration.

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