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Tunnel piston effect mitigation device

A piston effect and tunnel technology, applied in mining equipment, tunnel systems, roads, etc., can solve problems such as easy generation of high-pressure waves, and achieve the effect of reducing the amount of reflection

Active Publication Date: 2020-12-15
温州融宸科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention intends to provide a tunnel piston effect mitigation device to solve the problem that high-voltage waves are easily generated when high-speed rail enters the tunnel

Method used

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  • Tunnel piston effect mitigation device

Examples

Experimental program
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Effect test

Embodiment

[0023] This embodiment is basically as figure 1 , figure 2 Shown:

[0024] Tunnel piston effect mitigation device, mounting components, several high-pressure wave absorbing components and several exhaust components.

[0025] combine figure 2 , image 3 , according to the distance of the tunnel, select an appropriate number of embedded parts, before pouring the tunnel, wrap the connecting plate 3 on the embedded rod 10 on the structural steel bars of the reinforced tunnel to complete the fixing of the embedded parts, and then use concrete Pouring the prefabricated parts of the tunnel, and then installing the prefabricated parts on the inner wall of the newly opened tunnel. After the construction of the entire tunnel is completed, select the isolation cover 8 with a suitable length, and set up a number of positions corresponding to the number of embedded parts on the isolation cover 8. The connection holes 7 are then connected together with the connection sleeve 11 of the ...

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Abstract

The invention relates to the field of tunnel engineering, and particularly discloses a tunnel piston effect mitigation device. The tunnel piston effect mitigation device comprises a mounting assembly,a plurality of high-pressure wave absorption assemblies and a plurality of exhaust assemblies, wherein the mounting assembly comprises an arc-shaped isolation hood arranged on the inner wall of a tunnel and an arc-shaped functional hood arranged in the isolation hood, the arc shape of the isolation hood is consistent with the inner wall of a tunnel, the outer surface of the isolation hood is attached to the inner wall of the tunnel, the arc shape of the functional hood is consistent with the inner surface of the isolation hood, the outer surface of the functional hood is attached to the innersurface of the isolation hood, the high-pressure wave absorption assemblies comprise a plurality of piston pipes and a plurality of pistons, the piston pipes are all installed on the functional hoodin communicating mode, the ends, facing the interior of the functional hood, of the piston pipes are air inlets, at least one piston is arranged in each piston pipe in a sliding mode, the exhaust assemblies comprise exhaust pipes, the exhaust pipes are installed on the functional hood, a plurality of air inlets are evenly distributed in the faces, facing the interior of the functional hood, of theexhaust piped. The problem that high-voltage waves are likely to be generated when a high-speed rail enters a tunnel is solved.

Description

technical field [0001] The invention relates to the field of tunnel engineering, and specifically discloses a tunnel piston effect mitigation device. Background technique [0002] Piston Effect (Piston Effect) refers to the train running at high speed in the tunnel, which will drive the air in the tunnel to generate high-speed flow, because it is similar to the phenomenon that the piston in the cylinder compresses the gas. When a high-speed train enters the tunnel, the air in the tunnel is still. Due to the impact of the train, a high-pressure wave is generated. The high-pressure wave propagates at the speed of sound (much greater than the speed of the train). The tunnel top wall bounces back on the high-speed rail and causes the high-speed rail to vibrate. As the speed of the high-speed rail is getting faster and faster, for example, the country is developing a high-speed rail with a speed of 600km / h. Such vibration may cause the high-speed rail to derail. , providing a tu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B61B13/10E21F17/00
CPCB61B13/10E21F17/00
Inventor 陈雪英
Owner 温州融宸科技有限公司
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