Subway tunnel vibration and noise reduction structure and construction method

A vibration and noise reduction, tunnel construction technology, applied in tunnels, tunnel linings, underground chambers, etc., can solve problems affecting people's normal work and life, reduce the service life of building structures, etc., achieve good durability, ensure vibration and drop Noise effect, effect of improving vibration reduction effect and noise reduction efficiency

Inactive Publication Date: 2019-07-19
GUANGDONG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problem that in the prior art, the vibration and noise generated by the train passing through the tunnel structure under the building will be transmitted to the building structure through the track structure, tunnel structure, surrounding soil layer and other media, reducing the service life of the building structure and affecting people's normal work and life. In order to solve the defects of the subway tunnel, a vibration and noise reduction structure and construction method for subway tunnels are proposed

Method used

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  • Subway tunnel vibration and noise reduction structure and construction method
  • Subway tunnel vibration and noise reduction structure and construction method

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Effect test

Embodiment 1

[0030] A subway tunnel vibration and noise reduction structure, please refer to figure 1 , Including the tunnel wall 2, the support column 8, the elastic pad 4, the ballastless track plate 5, the sleeper 6, the steel rail 7; the lower bottom of the tunnel wall 2 is provided with a bayonet, and one end of the support pillar 8 passes through the bayonet to connect to Inside the tunnel wall 2; above the support column 8 is connected a rectangular ring structure 9; between the rectangular ring structure 9 and the support column 8 is connected an elastic pad 4; the ballastless track plate 5, sleeper 6 And the steel rail 7 are connected to the inner bottom end of the rectangular ring structure 9, wherein the steel rail 7, the sleeper 6 and the ballastless track plate 5 are sequentially connected from the top to the bottom. The ballastless track plate 5 is connected to the rectangular ring through the elastic pad 4 The inner bottom wall of the structure 9 is connected.

[0031] In this...

Embodiment 2

[0046] A subway tunnel vibration and noise reduction structure and construction method thereof, in the actual construction process, specifically include the following steps:

[0047] 1) In the design of the subway line, determine the interval where the vibration and noise reduction structure needs to be designed, and construct the departure shaft and the arrival shaft;

[0048] 2) Use the large-diameter shield method for subway tunnel construction, choose a shield machine with a diameter of 10m, and choose a circular structure for the cross section. The tunnel segment structure used in construction is reinforced concrete segment;

[0049] 3) After the subway tunnel construction is completed, determine the specific location where the bridge support structure intersects the tunnel, and open the tunnel segments. The cross-sectional area of ​​the opening is 0.6m×0.6m, and the pile hole is drilled at the opening position by the blasting pile method, and the drilling depth is 5m. After r...

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Abstract

The invention discloses a subway tunnel vibration and noise reduction structure and a construction method. The subway tunnel vibration and noise reduction structure is mainly composed of structural types and materials such as a rectangular circular structure, a vacuum space, vibration reduction rubber, a bridge type supporting structure, a rail, a ballast-less track board and an elastic backing board. According to the subway tunnel vibration and noise reduction structure, the elastic backing board is arranged between the ballast-less track board and the bridge type supporting structure, the vibration reduction rubber is arranged between the bridge type supporting structure and a subway tunnel wall, a transmission route of vibration waves induced during running of a subway train is cut off,and the capacity of weakening diffusion of vibration towards an outside stratum of a tunnel structure is achieved; air in the rectangular structure is extracted to enable the rectangular structure tobecome a vacuum structure gradually, so that a function of isolation between noise and the outside stratum is realized, and the influence of running of the subway train on the outside environment isreduced; and meanwhile, the preparation method of the subway tunnel vibration and noise reduction structure is easy and convenient, the construction technology is simple, the cost is low, and the subway tunnel vibration and noise reduction structure has good application effects and popularization value.

Description

Technical field [0001] The invention relates to the technical field of subway vibration and noise reduction, and more specifically, to a subway tunnel vibration and noise reduction structure and a construction method. Background technique [0002] At present, more and more cities have built a large number of urban rail transit systems in order to alleviate traffic congestion and save land resources. However, as the density of existing urban buildings tends to be saturated, the lower space left for rail transit construction is narrow, which inevitably overlaps existing buildings in space during urban rail transit construction. After operation, the vibration and noise generated by the train passing through the tunnel structure under the building will be transmitted to the building structure through the track structure, tunnel structure, surrounding soil layer and other media, reducing the service life of the building structure and affecting people's normal work and life. [0003] Th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D11/38E21D11/00
CPCE21D11/003E21D11/38
Inventor 邹超杨依鹏
Owner GUANGDONG UNIV OF TECH
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