CN108755282B - High-speed rail damping non-fragment orbit in a kind of tunnel - Google Patents
High-speed rail damping non-fragment orbit in a kind of tunnel Download PDFInfo
- Publication number
- CN108755282B CN108755282B CN201810614975.1A CN201810614975A CN108755282B CN 108755282 B CN108755282 B CN 108755282B CN 201810614975 A CN201810614975 A CN 201810614975A CN 108755282 B CN108755282 B CN 108755282B
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- supporting block
- block
- track plates
- cavity
- connector
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Classifications
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B1/00—Ballastway; Other means for supporting the sleepers or the track; Drainage of the ballastway
- E01B1/002—Ballastless track, e.g. concrete slab trackway, or with asphalt layers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L83/00—Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon only; Compositions of derivatives of such polymers
- C08L83/04—Polysiloxanes
- C08L83/08—Polysiloxanes containing silicon bound to organic groups containing atoms other than carbon, hydrogen and oxygen
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/08—Metals
- C08K2003/0818—Alkali metal
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
- Railway Tracks (AREA)
Abstract
The invention discloses high-speed rail damping non-fragment orbits in a kind of tunnel, belong to construction field, comprising: track plates (1), and ground face contact, track plates are equipped with cavity；Supporting block (2), supporting block part is fixed in cavity, the supporting block includes the first supporting block (201), second supporting block (202), elastomer block (203) and bolt retainer (204), rail (3) are fixed in first supporting block, second supporting block is located in the cavity of track plates, elastomer block is equipped between first supporting block and the second supporting block, the elastomer block with a thickness of between 20mm-100mm, bolt retainer connects the first supporting block and the second supporting block, and elastomer block is located at compressive state under the fixation of bolt retainer, the compressing force that elastomer block is subject under the compression ratio state is greater than the gravity of the first supporting block；Rail (3) is fixed on the first supporting block (201).
Description
Technical field
The present invention relates to field of track traffic.
Background technique
Non-fragment orbit (nonballasted-track), which refers to replace using mass-type foundations such as concrete, asphalts, to be dissipated
The ballast bed track structure of grain, also referred to as ballastless track, are the advanced railway technologies in the world today.
Non-fragment orbit is compared with Ballast track, and non-fragment orbit avoids splashing railway ballast, and ride comfort is good, and stability is good, uses
Service life is long, and durability is good, and maintenance work is few, more than 350 km of scooter when train operation.
In non-fragment orbit, damping be it is vital, especially when passing through tunnel, high-speed railway can be to ground
Powerful vibration is generated, long-term vibration can generate microcrack to the massif in tunnel and cause underground mortar, influence tunnel
Safety.
So the problem that damping of the high-speed rail non-fragment orbit in tunnel is most important is directly being propped up in existing damping
Support body and track plates are equipped with elastic piece and carry out damping, this elastic piece is compressed under the gravity of supporter, but the elasticity
Piece often very thin thickness, can not reach sufficient damping in tunnel.If but be related to it is blocked up, due to elastic piece support weight
It is compressed under power, the blocked up of setting will lead to the unstable stabilization for influencing driving in turn of supporter.
Summary of the invention
It is an object of the invention to: in view of the above problems, provide high-speed rail damping non-fragment orbit in a kind of tunnel, packet
It includes:
Track plates, and ground face contact, track plates are equipped with cavity；
Supporting block, supporting block part are fixed in cavity, the supporting block include the first supporting block, the second supporting block,
Elastomer block and bolt retainer are fixed with rail in first supporting block, and second supporting block is located at track plates
In cavity, between first supporting block and the second supporting block be equipped with elastomer block, the elastomer block with a thickness of 20mm-
Between 100mm, bolt retainer connects the first supporting block and the second supporting block, and the elastomer block under the fixation of bolt retainer
The compressing force that elastomer block is subject under compressive state, the compression ratio state is greater than the gravity of the first supporting block；
Rail is fixed in the first supporting block.
Prevent sundries from entering cavity sealing strip as an improvement, the side of supporting block and track plates cavity is equipped with.
As an improvement, the elastomer block is formed by stacking by 2-10 piece rubber material.
As an improvement, the rubber material is silica gel.
As an improvement, the bottom of second supporting block and cavity is equipped with elastomeric pad.
As an improvement, the raw material of the silica gel according to parts by weight includes 100 parts of fluorine silicon raw rubber, 2-10 parts of fluorosilicon oil, receives
Rice 5-10 parts of silicon carbide, 2-10 parts of glass fibre, 0.01-0.1 parts of lithium, 0.1-1 parts of gallium, 0.1-2 parts of coupling agent, toughener 0.1-
2 parts.
In a preferred embodiment, the silica gel the preparation method is as follows:
Step 1: carrying out coupling modifier to glass fibre, silicon carbide, lithium, gallium with coupling reaction tank, specific step is as follows will
Above-mentioned substance is added in coupling reaction tank, opens agitating device, stirring rotates mixture, by coupling agent ether according to 1:
It after 0.5 is configured to solution, is sprayed directly in mixture, the rotation speed for controlling agitating device is 3000 rev/min -5000
Rev/min, so that drying 10-30 at 100-150 DEG C after the temperature of mixture reaches 150 degrees Celsius, reaction 10-20 minutes
The mixture that minute obtained coupling modifier is crossed；Coupling agent is titanate coupling agent；
Step 2: by after fluorine silicon raw rubber, fluorosilicon oil, step 1 mixture, be kneaded in kneading machine in toughener, prepare
Rubber；
Step 3: post-processing rubber, is made product.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention；
Fig. 2 is the schematic diagram of supporting block of the present invention；
The connection structure diagram of connector and track plates in Fig. 3 one embodiment；
Fig. 4 is the connection structure diagram of connector and track plates in another embodiment；
Fig. 5 is the structural schematic diagram of connector；
Fig. 6 is whole schematic diagram；
Marked in the figure: 2- supporting block, the first supporting block of 201-, the second supporting block of 202-, 203- elastomer block, 204- bolt are solid
Determine part, 3- rail, 4- sealing strip, 5- track plates, 6- screed, 7- matrix, 8- connector, 801- connector, 802- pitman,
8021- swivel head, 9- central axis.
Specific embodiment
With reference to the accompanying drawing, the present invention is described in detail.
Specific embodiment 1:
If Fig. 6 is a kind of structural schematic diagram of non-fragment orbit of the present invention, in Fig. 6, including track plates 5, supporting block 2, sand
Pulp layer 6 and matrix 7, wherein supporting block 2 is fixed on track plates 5, and supporting block 2 is supported by rail 3, is set respectively under track plates 5
There are screed 6 and matrix 7, wherein being additionally provided with waterproof layer etc. (showing in figure).
Fig. 1-2 is a kind of specific connection schematic diagram of implementation embodiment supporting block 2 and track plates 5, and Fig. 2 is Fig. 1
Partial enlarged view, as shown in the figure, supporting block 2 are located on track plates 5, and rail 3 is fixed in supporting block 2.Wherein, track plates 5
With ground face contact, the ground can be screed and matrix 7 in a specific embodiment, and matrix 7 is usually concrete layer,
Track plates 5 are equipped with cavity；Supporting block part is fixed in cavity, and track plates 5 are exposed in part, and preferred embodiment is worked as in figure
In, the half of supporting block is located in cavity, and half exposes track plates 5；Rail 3 is fixed in the first supporting block 201.
In embodiment described in this Fig. 1, the supporting block 2 has both characteristic rigid and flexible, specifically,
When supporting block 2 receives the pressure of rail in a certain range, supporting block 2 keeps shape invariance, is in rigid state, Neng Goubao
Demonstrate,prove the stability of entire non-fragment orbit；When the pressure of rail is larger, when being specifically greater than certain value；Supporting block 2 can be shunk,
Its state for showing as certain flexibility can be substantially reduced high-speed rail movement to the impact force of track plates 5 and earth's surface.In order to reach
Above-mentioned effect, Fig. 1 is a kind of example embodiment for reaching above-mentioned effect, and in the embodiment, the supporting block includes the
One supporting block 201, the second supporting block, 202, elastomer block 203 and bolt retainer 204 are fixed in first supporting block
Rail 3, second supporting block are located in the cavity of track plates, are equipped between first supporting block and the second supporting block
Elastomer block, the elastomer block with a thickness of between 20mm-100mm, such as 50mm.Bolt retainer connects the first supporting block and the
Two supporting blocks, and elastomer block is located at compressive state under the fixation of bolt retainer, elastomer block is subject under the compression ratio state
Compressing force is greater than the gravity of the first supporting block, and in the case where not considering gravity, it is rigid which is equal to supporting block described above
Property and transformation critical force flexible.Due to the fixed function of bolt retainer, elastomer block is compressed, and is less than by rail pressure
When critical force, elastomer block shape invariance is rigid state；When being greater than critical force by rail pressure, elastomer block is shunk,
Elastic stage is shown as, passes through the impact endurance test shock power to track plates and ground to buffer train in high-speed rail.
In order to reduce the sliding of supporting block in the cavity, to improve the stability of supporting block, in a modified embodiment
In the middle, the side of supporting block and track plates cavity, which is equipped with, prevents sundries from entering cavity sealing strip 4.
The elastomer block is located in supporting block, and needs the thickness of the different adjustment elastic piece according to usage scenario, because
This, in order to facilitate the installation of and use, in improved embodiment, the elastomer block by 2-10 piece rubber material overlap and
At such as 5.
The rubber material will be in compressive state, and the impact by train for a long time in the present invention, resistance to
Fatigue and service life are most important.If can normally be used using existing silica gel, but service life is not grown,
It needs to be replaced frequently, if being changed without, rubber material follows the string, and reduces the stability of its non-fragment orbit.On solving
Problem is stated, in improved embodiment, the rubber material is silica gel.High-speed rail in tunnel according to claim 5
Damping non-fragment orbit, which is characterized in that the raw material of the silica gel includes 100 parts of fluorine silicon raw rubber, fluorosilicon oil 2- according to parts by weight
10 parts, 5-10 parts of nanometer silicon carbide, 2-10 parts of glass fibre, 0.01-0.1 parts of lithium, 0.1-1 parts of gallium, titanate coupling agent 0.1-2
Part, 0.1-2 parts of toughener.The silica gel the preparation method is as follows:
Step 1: carrying out coupling modifier to glass fibre, silicon carbide, lithium, gallium with coupling reaction tank, coupling agent is titanate esters
Coupling agent；
Step 2: by after fluorine silicon raw rubber, fluorosilicon oil, step 1 mixture, be kneaded in kneading machine in toughener, prepare
Rubber；
Step 3: post-processing rubber, is made product.
The track fatigue durability of above method preparation is high, service life is high, it is not easy to contaminated corrosion.
The bottom of second supporting block and cavity is equipped with elastomeric pad.
And in order to solve the problems, such as that shearing force, the present invention are equipped with a connector between track plates and screed, matrix, such as
Shown in Fig. 3-5, wherein Fig. 3 and Fig. 4 is the schematic diagram of connection structure difference connector, Fig. 5 be connector independently under schematic diagram.
Include in connector of the invention:
Connector 801, the connector are inserted into track plates 5 and are fixedly connected with track plates, the connector
Equipped with a cavity, cavity is connected to by a channel with the external world；
Pitman 802, the pitman include a swivel head, and swivel head is embedded into the cavity of connector, described
Swivel head can be rotated freely relative to connector, the pitman is inserted into screed and matrix 7, and and screed
It is fixedly connected with matrix 7.
The swivel head can mutually be rotated with pitman, therefore swivel head is usually the knot that there is arc top on some surfaces
Structure, if Fig. 4 is to rotate first specific embodiment, in the scheme of Fig. 4, the swivel head is sphere, correspondingly, institute
The spheroid chamber that the cavity stated is and swivel head is adapted.
Fig. 3 is another specific embodiment of connector, and in swivel head shown in Fig. 4, the swivel head is ellipse
Circle, ellipsoidal long axis are located on the extending direction of pitman central axis 9.
Swivel head and cavity of the invention is embedded in by way of preprocessing, can also be even in some embodiments
The top of connector is equipped with a channel, pitman is embedded in by channel, then re-closed channel.Due to consideration that pitman
Length be typically longer than connector, can be deeper be embedded into grout blanket and matrix 7, therefore, in some preferred implementations
In example, the section of the pitman is less than the section of connector.
Biggish mutual extrusion power is born between connector and track plates, in order to reduce connector and with track plates squeeze
Pressure is to the sectional pressure of connector, and in the present invention, the contact position of the pitman and connector is chamfered transition, such as schemes
Embodiment shown in 4 can slow down the impact force between connector and track plates.
In the present invention, a possibility that locally being breakked away due to the side that swivel head provides track plates and pitman,
The connector can keep relatively fixed with track plates, and in a kind of level, fixed performance is better, whole better, base
In this, the section of connector is square, and the section of pitman is circle.
In the description of the present invention, it is also necessary to which explanation is unless specifically defined or limited otherwise, term " setting ",
" installation ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or
It is integrally connected；It can be mechanical connection, be also possible to be electrically connected；It can be directly connected, it can also be by between intermediary
It connects connected, can be the connection inside two elements.For the ordinary skill in the art, can be understood with concrete condition
The concrete meaning of above-mentioned term in the present invention.
Claims (4)
1. high-speed rail damping non-fragment orbit in a kind of tunnel characterized by comprising
Track plates (5), and ground face contact, track plates are equipped with cavity, are respectively equipped with screed (6) and base under track plates (5)
Body (7)；
Supporting block (2), supporting block part are fixed in cavity, and the supporting block includes the first supporting block (201), the second support
Block (202), elastomer block (203) and bolt retainer (204) are fixed with rail (3) in first supporting block, described
Two supporting blocks are located in the cavity of track plates, and elastomer block is equipped between first supporting block and the second supporting block, described
Elastomer block with a thickness of 20mm-100mm, bolt retainer connects the first supporting block and the second supporting block, and in bolt retainer
Fixation under elastomer block be located at compressive state, the compressing force that elastomer block is subject under the compressive state is greater than the weight of the first supporting block
Power；Due to the fixed function of bolt retainer, elastomer block is compressed, when being less than critical force by rail pressure, elastomer block shape
Shape is constant, is rigid state；When being greater than critical force by rail pressure, elastomer block is shunk, and shows as elastic stage, with
Train passes through the impact endurance test shock power to track plates and ground in buffering high-speed rail；
Rail (3) is fixed on the first supporting block (201)；
A connector is equipped between track plates and screed, matrix, connector includes: connector (801) and pitman
(802), the connector is inserted into track plates (5) and is fixedly connected with track plates, and the connector is equipped with a cavity,
Cavity is connected to by a channel with the external world, and the pitman includes a swivel head, and swivel head is embedded into the cavity of connector
In, the swivel head can be rotated freely relative to connector, and the pitman is inserted into screed and matrix (7),
And it is fixedly connected with screed with matrix (7)；
The elastomer block is formed by stacking by 2-10 piece rubber material；
The rubber material is silica gel.
2. high-speed rail damping non-fragment orbit in tunnel according to claim 1, which is characterized in that
The raw material of the silica gel includes 100 parts of fluorine silicon raw rubber, 2-10 parts of fluorosilicon oil, nanometer silicon carbide 5-10 according to parts by weight
Part, 2-10 parts of glass fibre, 0.01-0.1 parts of lithium, 0.1-1 parts of gallium, 0.1-2 parts of titanate coupling agent, 0.1-2 parts of toughener；
The silica gel the preparation method is as follows:
Step 1: carrying out coupling modifier to glass fibre, silicon carbide, lithium, gallium with coupling reaction tank, coupling agent is titanate esters coupling
Agent；
Step 2: by after fluorine silicon raw rubber, fluorosilicon oil, step 1 mixture, be kneaded in kneading machine in toughener, prepare rubber
Glue；
Step 3: post-processing rubber, is made product.
3. high-speed rail damping non-fragment orbit in tunnel according to claim 2, which is characterized in that supporting block and track plates cavity
Side be equipped with prevent sundries from entering cavity sealing strip (4).
4. high-speed rail damping non-fragment orbit in tunnel according to claim 3, which is characterized in that second supporting block and
The bottom of cavity is equipped with elastomeric pad.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810614975.1A CN108755282B (en) | 2018-06-14 | 2018-06-14 | High-speed rail damping non-fragment orbit in a kind of tunnel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810614975.1A CN108755282B (en) | 2018-06-14 | 2018-06-14 | High-speed rail damping non-fragment orbit in a kind of tunnel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108755282A CN108755282A (en) | 2018-11-06 |
| CN108755282B true CN108755282B (en) | 2019-11-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810614975.1A Active CN108755282B (en) | 2018-06-14 | 2018-06-14 | High-speed rail damping non-fragment orbit in a kind of tunnel |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005009190A (en) * | 2003-06-19 | 2005-01-13 | Sekisui Chem Co Ltd | Vibration-isolation sleeper |
| KR100621485B1 (en) * | 2006-03-02 | 2006-09-19 | 주식회사 삼보기술단 | Pre-stress block structure for high-speed railroad |
| RU112203U1 (en) * | 2011-07-19 | 2012-01-10 | Закрытое акционерное общество "Инновационные технологии в строительстве" | UPPER WAY DEVICE |
| CN203923805U (en) * | 2014-05-22 | 2014-11-05 | 南通美固复合材料有限公司 | A kind of high strength highly anti-fatigue composite sleeper |
| CN205347895U (en) * | 2016-01-26 | 2016-06-29 | 天津轨道交通集团工程建设有限公司 | Underground railway track structure |
| CN206385393U (en) * | 2016-11-01 | 2017-08-08 | 中国铁道科学研究院铁道建筑研究所 | Non-fragment orbit |
| CN107903635A (en) * | 2017-11-29 | 2018-04-13 | 成都创客之家科技有限公司 | A kind of elastic silica gel material with high intensity and preparation method thereof |
-
2018
- 2018-06-14 CN CN201810614975.1A patent/CN108755282B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005009190A (en) * | 2003-06-19 | 2005-01-13 | Sekisui Chem Co Ltd | Vibration-isolation sleeper |
| KR100621485B1 (en) * | 2006-03-02 | 2006-09-19 | 주식회사 삼보기술단 | Pre-stress block structure for high-speed railroad |
| RU112203U1 (en) * | 2011-07-19 | 2012-01-10 | Закрытое акционерное общество "Инновационные технологии в строительстве" | UPPER WAY DEVICE |
| CN203923805U (en) * | 2014-05-22 | 2014-11-05 | 南通美固复合材料有限公司 | A kind of high strength highly anti-fatigue composite sleeper |
| CN205347895U (en) * | 2016-01-26 | 2016-06-29 | 天津轨道交通集团工程建设有限公司 | Underground railway track structure |
| CN206385393U (en) * | 2016-11-01 | 2017-08-08 | 中国铁道科学研究院铁道建筑研究所 | Non-fragment orbit |
| CN107903635A (en) * | 2017-11-29 | 2018-04-13 | 成都创客之家科技有限公司 | A kind of elastic silica gel material with high intensity and preparation method thereof |
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| Publication number | Publication date |
|---|---|
| CN108755282A (en) | 2018-11-06 |
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Effective date of registration: 20191025 Address after: 350182 Changle District, Fuzhou, Fujian, China, the first floor of the foreign exchange and international trade center, 28 Yu Ring Road, new district. Applicant after: CHANGLE BRANCH COMPANY, FUZHOU XINXIAXIN COMPUTER CO.,LTD. Address before: 610000 16 new building, B Hope International Street, Tianfu street, Chengdu, Sichuan Applicant before: Song Huiru |
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Effective date of registration: 20221221 Address after: 276800 R&D Building No. 8, Electronic Information Industrial Park, Gaoxin 7th Road, Rizhao Hi tech Zone, Shandong Province 237, Xueyuan Road, Rizhao Hi tech Zone, Shandong Province Patentee after: Rizhao Xinrui Investment Promotion Development Co.,Ltd. Address before: 350182 first floor, foreign language and foreign trade international exchange center, No. 28, Yuhuan Road, Shouzhan new area, Changle District, Fuzhou City, Fujian Province Patentee before: CHANGLE BRANCH COMPANY, FUZHOU XINXIAXIN COMPUTER CO.,LTD. |
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