Noise barrier

A sound barrier and wall panel technology, applied in the field of traffic noise control equipment, can solve the problems of reducing the sound absorption process of closed holes and weakening the sound absorption function, and achieve the ideal effect of noise elimination, sound insulation or sound absorption.

Active Publication Date: 2015-09-09
黄贺明
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This invention mainly uses ceramsite or ceramsite to form a sound-absorbing project, but because the structure of sand-free ceramsite concrete has many through-through capillary pores, it is easy for the sound to penetrate first during the transmission process, while ceramsite The internal closed hole reduces the sound absorption process, and the sound absorption function is weakened

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0082] Such as figure 1 , a sound barrier, comprising a plurality of columns 1 and a plurality of wall panels 3 connected up and down between adjacent columns 1, the top wall panels 3 are provided with arc-shaped panels 4, and the wall panels 3 A sound-absorbing panel is arranged between the two sound-insulating panels.

[0083] The sound insulation board is cast from ultra-high performance powder concrete. The sound-absorbing board is made of vitrified microbead foamed concrete.

[0084] The thickness of the sound insulation board is 20mm.

[0085] The thickness of the sound-absorbing board is 80mm.

[0086] Such as figure 1 , the arc-shaped plate 4 is a sound reflection area, and the arc-shaped plate 4 is a plurality of pieces, T-shaped steel 5 is arranged between two adjacent arc-shaped plates, and a plurality of bolt holes are arranged on the T-shaped steel 5, and the arc-shaped plate 4 Horizontally side by side and fixedly connected by bolts 6, as shown in the figure...

Embodiment 2

[0127] Other conditions are the same as in Example 1, except that the sound-insulating board is made of ultra-high-performance powder concrete with the following formula, and the sound-absorbing board is cast with vitrified microbead foamed concrete with the following formula.

[0128] The sound insulation board is cast from ultra-high performance powder concrete, and the formula is as follows:

[0129] 1,200 parts of 52.5 grade Portland cement with an average particle size of 30-60 μm;

[0130] 150 parts of micro-silicon powder with an average particle size of 0.1~0.5 μm and a SiO2 content of ≥92%;

[0131] 150 parts of mineral powder with an average particle size of 10~50μm;

[0132] 100 parts of polished brick powder with an average particle size of 0.5-25 μm

[0133] 1450 parts of quartz sand with a particle size of 0.63~0.16mm;

[0134] 22 parts of high-efficiency water reducing agent with water reducing rate greater than 30%;

[0135] 80 parts of inorganic pigment po...

Embodiment 3

[0150] The other conditions are the same as in Example 1, except that the sound-absorbing board is made of ultra-high-performance powder concrete with the following formula, and the sound-absorbing board is cast with vitrified microbead foamed concrete with the following formula.

[0151] The sound insulation board is cast from ultra-high-performance powder concrete, and the ultra-high-performance powder concrete includes the following raw materials in parts by weight:

[0152] 1100 parts of 52.5 grade Portland cement with an average particle size of 30-60 μm;

[0153] 120 parts of micro-silicon powder with an average particle size of 0.1~0.5 μm and a SiO2 content of ≥92%;

[0154] 120 parts of mineral powder with an average particle size of 10~50μm;

[0155] 80 parts of polished brick powder with an average particle size of 0.5-25 μm

[0156] 1250 parts of quartz sand with a particle size of 0.63~0.16mm;

[0157] 20 parts of high-efficiency water reducing agent with water ...

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Abstract

The invention discloses a noise barrier which comprises a plurality of columns and a plurality of wall plates which are arranged between the adjacent columns and are connected up and down, wherein a curved plate is arranged on the topmost wall plate; each wall plate is formed by arranging a noise absorbing plate between two noise insulation plates. According to the noise barrier, the noise is eliminated by using a way of insulation-absorption-insulation, and the effect is more ideal than the traditional single noise insulation or absorption effect.

Description

technical field [0001] The invention relates to the field of traffic noise control equipment, in particular to a sound barrier. Background technique [0002] The sound barrier is a facility inserted between the sound source and the receiver, so that the sound wave propagation has a significant additional attenuation, thereby reducing the impact of noise in a certain area where the receiver is located. The existing traditional sound barrier is mainly composed of steel structure columns and sound-absorbing and insulating panels. The columns are the main force-bearing components of the sound barrier. They are fixed to the road anti-collision wall or the pre-embedded steel plate on the side of the track by bolts or welding. The sound-absorbing and sound-absorbing board is the main sound-absorbing and sound-absorbing component, which is fixed in the H-shaped column groove by high-strength spring clips to form a sound barrier. For example, the application number is 201320848702.6...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01F8/00C04B28/04C04B18/16C04B38/10
CPCY02W30/91
Inventor 刘福财李斌王贻远肖敏陈桂祥张信祯李思斯黄贺明
Owner 黄贺明
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