Embedded type vibration and noise reduction component for track and construction method thereof
阅读说明：本技术 一种埋入式轨道用减振降噪部件及其施工方法 (Embedded type vibration and noise reduction component for track and construction method thereof ) 是由 何云伟 杨刚 罗炯 崔毅鹏 刘晨 苗彩霞 黄爱军 刘光胜 刘士煜 刘静之 程樱 于 2019-11-13 设计创作，主要内容包括：本发明公开了埋入式轨道用减振降噪部件及其施工方法,所述施工方法包括以下步骤：A、配制由级配颗粒与胶粘剂拌和形成的下层材料,将所述下层材料填充至埋入式轨道的预留槽区并捣固密实至设计高度,形成减振降噪块；B、在所述减振降噪块表面涂刷胶粘剂,在胶粘剂的干燥表面上利用上层材料浇注施工至预定高度,固化后形成防护面层,完成埋入式轨道用减振降噪部件的施工。所述埋入式轨道用减振降噪部件采用上述埋入式轨道用减振降噪部件的施工方法制得。本发明均为现场施工且与槽区适应性强,不存在配合不好的问题,无预制费用且综合成本较低；具有一定的减振降噪效果,施工快速、工艺简单且后期便于维护,破碎回收后可以二次填充使用。(The invention discloses a vibration and noise reduction component for an embedded track and a construction method thereof, wherein the construction method comprises the following steps: A. preparing a lower layer material formed by mixing graded particles and an adhesive, filling the lower layer material into a reserved groove area of the embedded track, tamping and compacting to a designed height to form a vibration and noise reduction block; B. and coating an adhesive on the surface of the vibration and noise reduction block, pouring and constructing an upper layer material on the dry surface of the adhesive to a preset height, and curing to form a protective surface layer to finish the construction of the vibration and noise reduction part for the embedded track. The vibration and noise reduction component for the embedded track is prepared by adopting the construction method of the vibration and noise reduction component for the embedded track. The invention is constructed on site and has strong adaptability with the groove area, no problem of poor matching, no prefabrication cost and lower comprehensive cost; the vibration and noise reduction device has certain vibration and noise reduction effects, is quick in construction, simple in process and convenient to maintain in the later period, and can be used in a secondary filling mode after being crushed and recovered.)
1. A construction method of a vibration and noise reduction part for an embedded track is characterized by comprising the following steps:
A. preparing a lower layer material formed by mixing graded particles and an adhesive, filling the lower layer material into a reserved groove area of the embedded track, tamping and compacting to a designed height to form a vibration and noise reduction block;
B. and coating an adhesive on the surface of the vibration and noise reduction block, pouring and constructing an upper layer material on the dry surface of the adhesive to a preset height, and curing to form a protective surface layer to finish the construction of the vibration and noise reduction part for the embedded track.
2. The method of constructing a vibration/noise reduction member for an embedded rail as set forth in claim 1, further comprising the step of constructing protection before construction, wherein the step of constructing protection is a substep of installing a fastener cover to protect the fastener assembly before construction and installing a rigid foam block between the fastener assemblies at a distance from the bottom of the rail.
3. The method for constructing a vibration/noise reduction member for an embedded rail as claimed in claim 1, wherein the graded particles in the lower layer material are elastic particles or a mixture of elastic particles and inorganic particles, and the grain size of the graded particles is 1 to 10 mm.
4. The method for constructing a vibration/noise reduction member for an embedded rail as claimed in claim 3, wherein the elastic particles are one or more of rubber particles, plastic particles and wood dust particles, and the inorganic particles are one or more of crushed stone, coal slag and sand.
5. The method for constructing a vibration/noise reduction member for an embedded rail as defined in claim 3, wherein the mass ratio of the elastic particles to the inorganic particles in the mixture of the elastic particles and the inorganic particles is 10:1 to 5: 5.
6. The construction method of the vibration and noise reduction part for the embedded rail according to claim 1, wherein the adhesive is a room temperature cured single-component or two-component polyurethane material or an epoxy or modified epoxy material, and the viscosity of the adhesive is 100 to 10000mPa · s.
7. The construction method of the vibration and noise reduction part for the embedded rail as claimed in claim 1, wherein the mass ratio of the graded particles to the adhesive in the lower layer material is 1: 1-12: 1.
8. The method of constructing a vibration/noise reduction member for an embedded rail as claimed in claim 1, wherein the upper layer is made of modified asphalt, modified epoxy resin or room temperature-curable polyurethane.
9. The construction method of the vibration and noise reduction part for the embedded track as claimed in claim 1, wherein the height ratio of the protective surface layer to the vibration and noise reduction block is 1: 9-4: 6.
10. The vibration and noise reduction part for the embedded track is characterized by being manufactured by the construction method of the vibration and noise reduction part for the embedded track according to any one of claims 1 to 9, comprising a lower layer of vibration and noise reduction blocks and an upper layer of protective surface layer, wherein the protective surface layer is bonded with the vibration and noise reduction blocks, and the upper layer of the protective surface layer partially permeates into the lower layer of material which can reduce vibration and noise quickly to form the integral structure of the vibration and noise reduction part for the embedded track.
Technical Field
The invention relates to the technical field of rail transit, in particular to a vibration and noise reduction component for an embedded rail and a construction method thereof.
Background
The embedded track structure generally adopted in the current urban rail transit yards, garage interior lines and other places is characterized in that a steel rail is fixed with a rail bearing platform or a sleeper through a fastener, track bed concrete is poured on two sides of the steel rail in a closed mode to form a groove area, and then a prefabricated rubber block is installed in the groove area to form a smooth ground structure.
The other option is an embedded track, after the track bearing groove is prefabricated, various parts are placed in the groove, then high polymer materials are poured, and the steel rail is fixed through bonding, so that a flat ground structure can be formed, and other vehicles can conveniently pass through the embedded track.
However, when the vibration and noise reduction parts in the grooves related to the two products are used in a vehicle section of a parking lot, the embedded track is relatively expensive because the poured vibration and noise reduction parts also take the function of locking steel rails; and the prefabricated rubber block of fastener formula has the cooperation not good when using, and waterproof sealing nature is poor etc. shortcoming.
Disclosure of Invention
Aiming at the defect that the vibration and noise reduction parts on two sides of the existing steel rail are applied to the vehicle section, the invention provides the vibration and noise reduction part for the embedded track, which is particularly suitable for the places such as a parking lot parking line, an in-garage line and the like, and a construction method thereof.
One aspect of the present invention provides a construction method of a vibration and noise reduction member for an embedded track, the construction method including the steps of:
A. preparing a lower layer material formed by mixing graded particles and an adhesive, filling the lower layer material into a reserved groove area of the embedded track, tamping and compacting to a designed height to form a vibration and noise reduction block;
B. and coating an adhesive on the surface of the vibration and noise reduction block, pouring and constructing an upper layer material on the dry surface of the adhesive to a preset height, and curing to form a protective surface layer to finish the construction of the vibration and noise reduction part for the embedded track.
According to one embodiment of the construction method of the vibration and noise reduction part for the embedded track, the construction method further comprises the step of construction protection before construction, wherein the step of construction protection is the substeps of installing fastener covers to protect fastener assemblies before construction and installing rigid foam blocks between the fastener assemblies at the distance from the bottom of the steel rail.
According to one embodiment of the construction method of the vibration and noise reduction part for the embedded track, the graded particles in the lower layer material are elastic particles or a mixture of the elastic particles and inorganic particles, and the grain diameter of the graded particles is 1-10 mm.
According to one embodiment of the construction method of the vibration and noise reduction part for the embedded track, the elastic particles are one or more of rubber particles, plastic particles and wood dust particles, and the inorganic particles are one or more of broken stones, coal slag and sand.
According to one embodiment of the construction method of the vibration and noise reduction part for the embedded track, the mass ratio of the elastic particles to the inorganic particles in the mixture of the elastic particles and the inorganic particles is 10: 1-5: 5.
According to one embodiment of the construction method of the vibration and noise reduction part for the embedded track, the adhesive is a room-temperature cured single-component or two-component polyurethane material or an epoxy or modified epoxy material, and the viscosity of the adhesive is 100-10000 mPa & s.
According to one embodiment of the construction method of the vibration and noise reduction part for the embedded track, the mass ratio of the graded particles to the adhesive in the lower layer material is 1: 1-12: 1.
According to one embodiment of the construction method of the vibration and noise reduction part for the embedded track, the upper layer material is modified asphalt, modified epoxy resin or room temperature curing polyurethane.
According to one embodiment of the construction method of the vibration and noise reduction part for the embedded track, the height ratio of the protective surface layer to the vibration and noise reduction block is 1: 9-4: 6.
The invention also provides a vibration and noise reduction part for the embedded track, which is manufactured by adopting the construction method of the vibration and noise reduction part for the embedded track.
The vibration and noise reduction part for the embedded track has an indefinite shape, changes according to different structures of the reserved groove area, is constructed on site, has strong adaptability with the groove area, does not have the problem of poor matching, does not have prefabrication cost and has lower comprehensive cost; the part has certain vibration and noise reduction effects, is quick in construction, simple in process and convenient to maintain in the later period, can be used in a secondary filling mode after being crushed and recovered, is relatively environment-friendly, and is particularly suitable for places such as parking lines in a parking lot and interior lines in a garage.
Drawings
Fig. 1 shows a schematic cross-sectional structure of a vibration and noise reduction member for an embedded rail at a fastener according to an exemplary embodiment of the present invention.
Fig. 2 shows a schematic cross-sectional structure of a vibration/noise reduction member for an embedded rail at a non-fastening portion according to an exemplary embodiment of the present invention.
Description of reference numerals:
1-protective angle steel, 2-protective surface layer, 3-fastener cover, 4-steel rail, 5-fastener component, 6-reinforced concrete track bed, 7-rigid foam block, 8-sleeper, 9-vibration damping and noise reducing block.
Detailed Description
All of the features disclosed in this specification, or all of the steps in any method or process so disclosed, may be combined in any combination, except combinations of features and/or steps that are mutually exclusive.
Any feature disclosed in this specification may be replaced by alternative features serving equivalent or similar purposes, unless expressly stated otherwise. That is, unless expressly stated otherwise, each feature is only an example of a generic series of equivalent or similar features.
The invention provides a vibration and noise reduction component for an embedded track and a construction method thereof on the basis of using the advantages of two types of tracks according to the defects of the application of the vibration and noise reduction components on two sides of the existing steel rail in a vehicle section, has certain vibration and noise reduction effect, has the characteristics of quick construction, simple process, lower comprehensive cost and convenience in later maintenance, and is particularly suitable for sections such as parking lines in a parking lot, garage lines and the like.
Fig. 1 shows a schematic cross-sectional structure of a vibration/noise reduction member for an embedded rail at a fastener according to an exemplary embodiment of the present invention, and fig. 2 shows a schematic cross-sectional structure of a vibration/noise reduction member for an embedded rail at a non-fastener according to an exemplary embodiment of the present invention.
As shown in fig. 1 and 2, according to an exemplary embodiment of the present invention, the construction method of the vibration/noise reduction member for an embedded rail includes the following steps.
Step A:
preparing a lower layer material formed by mixing graded particles and an adhesive, filling the lower layer material into a reserved groove area of the embedded track, tamping and compacting to a designed height to form the vibration and noise reduction block.
In order to protect the fastener components and the like, the construction method further comprises the step of construction protection before construction, and the construction protection step is specifically a substep of installing the
The grading particles in the lower layer material selected by the invention are preferably elastic particles or a mixture of the elastic particles and inorganic particles, and the particle size of the grading particles is 1-10 mm. Namely, when preparing the graded particles of the lower layer material, the elastic particles or the mixture of the elastic particles and the inorganic particles are selected and graded and mixed within the range of 1-10 mm to achieve the optimal performances of strength and the like.
Wherein, the elastic particles can be one or more of rubber particles, plastic particles and wood dust particles, and the inorganic particles can be one or more of broken stones, coal slag and sand. Preferably, the mass ratio of the elastic particles to the inorganic particles in the mixture of the elastic particles and the inorganic particles is 10:1 to 5: 5.
In addition, the mass ratio of the medium-grade matched particles to the adhesive in the lower layer material is controlled to be 1: 1-12: 1, so that better mixing and forming effects are realized. The adhesive selected by the invention is preferably a room-temperature cured single-component or two-component polyurethane material or an epoxy or modified epoxy material, and the viscosity of the adhesive is 100-10000 mPa & s.
And after the lower layer material is prepared according to the preferable material and the preferable proportion, the lower layer material is filled into the reserved groove area and tamped to be compact until the designed height, and then the damping and
And B:
and B, coating an adhesive on the surface of the vibration and
The upper layer material can be modified asphalt, modified epoxy resin or room temperature curing polyurethane according to different use environments and functional requirements. The upper layer material is bonded with the vibration and
And preferably controlling the height ratio of the protective surface layer to the vibration and noise reduction block to be 1: 9-4: 6.
The vibration and noise reduction part for the embedded track is manufactured by adopting the construction method of the vibration and noise reduction part for the embedded track. The vibration and noise reduction component for the embedded track specifically comprises a vibration and
The vibration and noise reduction component for the embedded track is constructed on site, has strong adaptability with the reserved groove area, and does not have the problem of poor matching; in addition, the components are free of prefabrication cost in site construction, the comprehensive cost is low, the components can be filled for use for the second time after being crushed and recycled, and the environment is relatively protected.
The present invention will be further described with reference to the following specific examples.
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