High-speed railway noise barrier

A high-speed railway and sound barrier technology, applied in the field of components, can solve the problems of single design form and poor durability, and achieve the effects of noise reduction, good fatigue resistance, and convenient installation and replacement

Inactive Publication Date: 2011-05-11
SOUTHWEST JIAOTONG UNIV +2
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0005] In order to overcome technical deficiencies such as poor durability and single design form of existing high-speed railway sound barriers, the present invent...

Method used

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  • High-speed railway noise barrier
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Examples

Experimental program
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Embodiment Construction

[0038] Such as figure 1 As shown, the high-speed railway sound barrier includes an H-shaped steel metal column 1, a prefabricated concrete sound-absorbing panel 2 inserted into the H-shaped steel metal column 1, and a transparent sound-insulating panel 3 is installed on the top of the pre-fabricated concrete sound-absorbing panel 2. The top is provided with a curved sound-absorbing top 4.

[0039] The precast concrete sound-absorbing panel 2 is assembled by connecting the precast concrete insert 21 and the sound-absorbing panel 22 through bolts 23; in order to solve the problem of connection and sound insulation at the bottom of the precast concrete insert 21, a groove is provided at the bottom of the precast concrete insert 21 24, and cooperate with the convex rubber pad 7 to realize the flexible connection between the bottom of the prefabricated concrete insert 21 and the concrete longitudinal beam and achieve the effect of sound decoupling; at the same time, the grooved rub...

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Abstract

The invention relates to a component used in a railway, in particular to a high-speed railway noise barrier which comprises an H-shaped steel metal upright column, a precast concrete sound absorbing plate which is inserted into the H-shaped steel metal upright column, a transparent sound insulation plate installed above the precast concrete sound absorbing plate and an arc sound absorbing top part arranged at the top part of the transparent sound insulation plate. The high-speed railway noise barrier with the arc sound absorbing top part structure can efficiently absorb the noises of a high-speed railway train wheel rail, aerodynamic force of a train body and the like and prevent the noises from spreading to both sides of a line; and an insertion plate of a precast prestressed concrete unit at the lower part has no tensile stress under the load, thereby efficiently preventing the insertion plate from cracking and achieving the advantages of good anti-fatigue performance and durability, and the sound absorbing insertion plate of the prestressed concrete noise barrier has a low manufacturing cost and is convenient for installation and replacement. The high-speed railway noise barrier is suitable for places which have high requirements for noise isolation, such as urban regions, schools, hospitals, residential areas and the like.

Description

technical field [0001] The invention relates to a component used in railways, in particular to a high-speed railway sound barrier structure. Background technique [0002] At present, China's high-speed railway is developing rapidly. With the opening of Shanghai-Hangzhou high-speed railway in September 2010, the operating mileage of high-speed railway in China has reached 7,055 kilometers, ranking first in the world. In 2012, the operating mileage of high-speed railways will reach 13,000 km, exceeding the sum of other countries. While the mileage of high-speed railways is developing rapidly, the operating speed of trains is also at the forefront of the world. The domestically produced CRH3 "Harmony" EMU train once created a 394.3-kilometer distance on the Beijing-Tianjin intercity high-speed railway on June 24, 2008. The world's highest speed record for railway operation. On September 28, 2010, China's domestically produced "Harmony" CRH380A new-generation high-speed EMU wa...

Claims

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Application Information

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IPC IPC(8): E01B19/00E01F8/00
Inventor 施洲邓跞勾红叶高玉峰霍学晋
Owner SOUTHWEST JIAOTONG UNIV
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