CN105239468A - Rubber coat boot failure regulating method and novel elastic supporting block component - Google Patents
Rubber coat boot failure regulating method and novel elastic supporting block component Download PDFInfo
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- CN105239468A CN105239468A CN201510631495.2A CN201510631495A CN105239468A CN 105239468 A CN105239468 A CN 105239468A CN 201510631495 A CN201510631495 A CN 201510631495A CN 105239468 A CN105239468 A CN 105239468A
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Abstract
The invention provides a rubber coat boot failure regulating method and a novel elastic supporting block component, and relate to the field of railway equipment. The rubber coat boot failure regulating method comprises the following steps of determining a disengaging position of an original elastic supporting block component, wherein the original elastic supporting block component comprises a first supporting block and a first rubber coat boot which coats the exterior of the supporting block, and the rubber coat boot is used for providing certain elasticity and is attached to a track bed; loosening a fastening system; lifting a steel rail; taking out the original elastic supporting block component; and mounting the novel elastic supporting block component, wherein the novel elastic supporting block component comprises a second novel supporting block, an elastic tie plate and a second rubber coat boot, the elastic tie plate is positioned at the bottom of the second supporting block, and an epoxy resin layer attached to the track bed is arranged around the second rubber coat boot. In the novel elastic supporting block component, the epoxy resin layer is bonded around the second rubber coat boot and around the upper part of the second supporting block. According to the invention, the technical problem that the original supporting block fails to be disengaged from the rubber coat boot is solved.
Description
Technical field
The present invention relates to railway equipment field, particularly relate to the regulation method that a kind of rubber dress boots lost efficacy and the novel elastic rest pad assembly being applied to the method.
Background technology
Elastic Bearing Block Track system is mainly made up of rail, fastener, elastic supporting block and concrete road bed board.Wherein elastic supporting block is the important component part of this system, and parcel rubber dress boots around rest pad, to provide high resiliency.Rigidity is easy to adjustment under Elastic Bearing Block Track system rail and under block, can carry out the Proper Match of Double-layer elastic, thus effectively absorb wheel-rail impact, possesses vibration and noise reducing and delays the premium properties such as wheel-rail wear.It is at home and abroad widely applied in railway and urban track traffic tunnel.But along with China at a high speed, the fast development of heavy haul railway transport, the dynamic action aggravation of wheel rail system, obviously accelerates the comfortableness of train operation and the deformation failure of higher, each parts of security requirement.Under the repeated action of bullet train dynamic load and temperature load, if the links such as design, construction, material and maintenance are mishandling, or there is accidental natural calamity, Elastic Bearing Block Track then inevitably produces various disease, will bring hidden danger to track structure is stressed with traffic safety.
Through investigation, as Fig. 1, there is following obvious problem in the Elastic Bearing Block Track run after the several years: the adhesive segment of rest pad and railway roadbed lost efficacy, and occur space between rest pad and railway roadbed, namely phenomenon of coming to nothing appears in rest pad; After coming to nothing, rest pad vertically retrains inefficacy, produces displacement upwards under High-speed Train Loads, namely occurs rest pad pulls out phenomenon; After there is above-mentioned gap, rubber dress boots is easily intake, the compressive strain of microporous foam rubber cushion plate, and rubber dress boots is aging, and rigidity increases damping property and declines.Due to the objective reality of above problem, not only can affect the durability of track structure, driving stationarity, also may cause potential safety hazard to driving.In prior art only about Elastic Bearing Block Track about changing the mechanics property analysis of rest pad, rest pad does not come to nothing the regulation method of the relevant issues such as rubber dress boots inefficacy.So in the urgent need to propose complete set for elastic supporting block come to nothing rubber dress boots lost efficacy regulation method.
To come to nothing the technical problem that rubber dress boots lost efficacy based on above-mentioned rest pad, the invention provides the regulation method that the rubber dress boots that can solve the problems of the technologies described above lost efficacy, and provide the novel elastic rest pad assembly being applicable to the method.
Summary of the invention
The object of the present invention is to provide a kind of prevent and treat rubber dress boots lost efficacy method rubber dress boots lost efficacy regulation method, with solve traditional rest pad come to nothing rubber dress boots lost efficacy technical problem.
Invention object be also to provide a kind of novel elastic rest pad assembly, with solve traditional rest pad come to nothing rubber dress boots lost efficacy technical problem.
Based on above-mentioned first object, the invention provides the regulation method that a kind of rubber dress boots lost efficacy, comprise the steps:
Determine the position of coming to nothing of original elastomeric bearing block assembly, described original elastomeric bearing block assembly comprises the first rest pad and is wrapped in the first rubber dress boots outside described rest pad, and described rubber dress boots is used for providing certain elasticity and fits with railway roadbed;
Unclamp fastener system;
Lift rail;
Take out original elastomeric bearing block assembly;
Installation of New Type elastomeric bearing block assembly, described novel elastic rest pad assembly comprises the second novel rest pad, be positioned at the resilient sleeper-bearing bottom described second rest pad, and be wrapped in and the second rubber dress boots outside the second rest pad described in described resilient sleeper-bearing, the surrounding of the second rubber dress boots is provided with the epoxy resin layer for fitting with railway roadbed.
Optionally, described in unclamp in the step of fastener system, the rail scope of unclamping fastener is that rest pad to come to nothing before and after position in each 12m.
Optionally, described in lift in the step of rail, the raising height of described rail is 16cm.
Optionally, described in lift in the step of rail, the temperature of described rail is no more than more than fastening-down temperature of rail+6 DEG C.
Optionally, in the step of the original elastomeric bearing block assembly of described taking-up, described first rest pad entirety is taken out.
Optionally, in the step of described Installation of New Type elastomeric bearing block assembly, described novel elastic rest pad component mounting method is, first the second rest pad assembling the second rubber dress boots and resilient sleeper-bearing is put into railway roadbed, then fastener for installing system is by rail fastening, between the gap of the second rubber dress boots and railway roadbed, insert sebific duct, described sebific duct is positioned at four corner points of described second rest pad; Then use the gap around whole described second rest pad of repair sheets equating, finally sprinkle dry quartz sand; After adhesive curing to be repaired, the epoxy resin modulated to enhancing perfusion in gap by sebific duct, removes the sebific duct exposed after described epoxy resin cure, and brushes Sai Baisi concentrating agents shutoff sebific duct mouth.
Optionally, the pressure of injection ring epoxy resins remains on 0.5 ~ 1.0Mpa, and environment temperature remains on 8 DEG C ~ 30 DEG C.
Optionally, after installing described novel elastic rest pad assembly, clear up described novel elastic rest pad assembly surface.
Optionally, a kind of novel elastic rest pad assembly of the regulation method for rubber dress boots inefficacy, described novel elastic rest pad assembly comprises the second rest pad vertically placed, described second rest pad comprises upper and lower two parts, and two parts up and down of described second rest pad are the square column that size is different; The upper surface being positioned at the described square column of upper part is provided with track; The external diameter being positioned at the described square column of lower part is less than the external diameter of the described square column being positioned at upper part; Be provided with resilient sleeper-bearing bottom described second rest pad, lower part and the described resilient sleeper-bearing of described second rest pad are wrapped up completely by the second rubber dress boots, and the external diameter of described second rubber dress boots is equal with the external diameter of the described square column being positioned at upper part; The surrounding of the upper part of described second rubber dress boots and described second rest pad is bonded with epoxy resin layer.
Optionally, the described square column length being positioned at upper part is 615mm, width is 310mm, and the described square column length being positioned at lower part is 590mm, width is 280mm; The thickness of described epoxy resin layer is 1cm.
The regulation method that rubber dress boots provided by the invention lost efficacy, wraps up epoxy resin layer around the second novel rest pad.Adhering with epoxy resin ability is strong.Bondd by epoxy resin layer and railway roadbed, the adhesive segment of the second rest pad and railway roadbed can be prevented to lose efficacy, thus prevent from occurring space between the second rest pad and railway roadbed, and then prevent the second rest pad from coming to nothing, rubber dress boots is immersed in water inefficacy.Meanwhile, epoxy resin shrinkage factor is little, not easily shrinks, and also can not produce gap with railway roadbed.
Moreover, by epoxy resin layer, in being wrapped in by described second rubber dress boots, avoid described second rubber dress boots to be immersed in water inefficacy further.
Accompanying drawing explanation
In order to be illustrated more clearly in the specific embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in detailed description of the invention or description of the prior art below, apparently, accompanying drawing in the following describes is some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 shows the first rest pad and to come to nothing schematic diagram;
Fig. 2 shows the rail scope schematic diagram of the part that releases;
Fig. 3 shows Elastic Bearing Block Track track lifting model;
Fig. 4 shows the counter-force that first is not unclamped fastener;
Fig. 5 shows the maximum vertical deviation of rail under different operating mode;
Fig. 6 shows schematic diagram rail and the first rest pad lifted with rail jack;
Fig. 7 shows rest pad assembly and takes out schematic diagram;
Fig. 8 shows and puts into the second rest pad process schematic;
Fig. 9 shows injection ring epoxy resins process schematic;
Figure 10 shows novel rest pad unit replacement completion status schematic diagram;
Figure 11 shows novel elastic rest pad assembly front view.
Reference numeral:
1-second rest pad; 2-second rubber dress boots; 3-resilient sleeper-bearing;
4-epoxy resin layer; 5-fastener system; 6-railway roadbed;
7-sebific duct; 8-first rest pad; 9-first rubber dress boots;
Detailed description of the invention
Be clearly and completely described technical scheme of the present invention below in conjunction with accompanying drawing, obviously, described embodiment is the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
In describing the invention, it should be noted that, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or connect integratedly; Can be mechanical connection, also can be electrical connection; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals.For the ordinary skill in the art, concrete condition above-mentioned term concrete meaning in the present invention can be understood.
For adopt in the present embodiment " on ", D score, "left", "right", "front", "rear", " interior ", the noun of locality such as " outward "; be only the relative position relation being convenient to clearly illustrate each parts of the present invention, should not be construed the direct restriction to technical scheme and claims.
Also by reference to the accompanying drawings the present invention is described in further detail below by specific embodiment.
The regulation method embodiment that rubber dress boots lost efficacy
Composition graphs 1-7, the invention provides the regulation method that a kind of rubber dress boots lost efficacy, comprises the steps:
Step one: determine that original elastomeric bearing block assembly comes to nothing position,
As Fig. 1, the first rest pad 8 in described original elastomeric bearing block assembly lost efficacy with the adhesive segment of railway roadbed, and occur space between the first rest pad 8 and railway roadbed, namely phenomenon of coming to nothing appears in the first rest pad 8.After coming to nothing, the first rest pad 8 vertically retrains inefficacy, produces displacement upwards under High-speed Train Loads, namely occurs the first rest pad 8 pulls out phenomenon.After there is above-mentioned gap, the first rubber dress boots 9 is easily intake, resilient sleeper-bearing 3 compressive strain of being made up of microporous foam glue, and the first rubber dress boots 9 is aging, and rigidity increases, and damping property declines.First the accurate location needing the original elastomeric bearing block assembly changed is determined.
Step 2, unclamps fastener system 5; Fastener system is the coupling assembling between rail and sleeper, fastener system must have enough, durability and certain elasticity, guarantee rail that can be permanently effective is connected with the reliable of sleeper, organize rail relative to the movement of sleeper, and under dynamic action, give full play to its buffer shock-absorbing performance, delay track residual deformation accumulation.As in Fig. 2, figure, A is the rest pad that will change, and L is the length of part of releasing.The part scope that releases is exactly the permission rail temperature of length in order to rationally release when determining to change original elastomeric bearing block assembly part scope and construction of that section of rail needing to unclamp fastener, for construction operation provides technological guidance, the present embodiment has done following analytical calculation.
First, the insert depth due to original elastomeric bearing block assembly is 16cm, for being taken out by original elastic supporting block component integration, so the minimum track lifting amount of taking out rest pad is 16cm; Then use Finite Element to establish superposed beam model to calculate.In model, rail is reduced to spring beam unit and considers the effect of gravity, and the vertical supporting series connection of fastener and rest pad system is reduced to a nonlinear spring, and model as shown in Figure 3, wherein F is that rail power lifted by rail, a is rail track lifting amount, and L is the scope of unclamping fastener, and model total length is 270m.
This patent calculates when track lifting amount is 16cm, lifts rail power, counter-force that the maximum positive bending moment of rail, maximum hogging moment and first do not unclamp fastener needed for track lifting.For the stability of track structure during guarantee track lifting operation, above-mentioned value should be as far as possible little.Result of calculation shows, increase when unclamping fastener scope, the stressed and moment of flexure of track structure all reduces, and when the fastener scope of unclamping reaches 24m, the stressed and moment of flexure of track structure tends towards stability (see Fig. 4).The stability of track structure when considering construction operation and workload, when changing rest pad, the reasonable length unclamping fastener is 24m.
When unclamping quantity one timing of fastener, rail is in the state without fastener constraint within the scope of this, and its resistance to overturning can be affected.When track lifting operation and fastening-down temperature of rail inconsistent, there is thermal stresses in rail, this may cause the unstability of track.In " seamless railroad design specifications ", when adopting unified CWR Track Stability design formulas, under temperature pressure function, getting curved in tracks distortion arrow degree is 2mm.This patent, as reference, calculates, when rail heat up 6 DEG C time, the maximum vertical deviation of rail reaches 2mm (as shown in Figure 5).So, change rest pad processing temperature and should be no more than more than fastening-down temperature of rail+6 DEG C.
Step 3, lifts rail; Through above-mentioned calculating, when changing original elastomeric bearing block assembly operation, rail track lifting amount is 16cm, and the rail scope of unclamping fastener is front and back 12m, allows operation rail temperature should be no more than more than fastening-down temperature of rail+6 DEG C.
Step 4, takes out original elastomeric bearing block assembly.As shown in Figure 6,7, respectively with a rail jack, rail is upwards raised 16cm together with rest pad to be replaced in rest pad both sides to be replaced, finally rest pad is taken out near side, road bed board edge.In the process of taking out original elastomeric bearing block assembly, described first rest pad 8 entirety is taken out.
The regulation method that the described rubber dress boots of the application lost efficacy, by scientific algorithm, numerical simulation, the angle of and construction works amount stressed from track structure when reducing construction operation, determines the zone of reasonableness unclamping fastener; And from the stability of track structure, determine permission rail temperature during construction operation.Rest pad for scene is changed operation and is provided theoretical direction.
Step 5, Installation of New Type elastomeric bearing block assembly, described novel elastic rest pad assembly comprises the second novel rest pad 1, be positioned at the resilient sleeper-bearing 3 bottom described second rest pad, and be wrapped in and the second rubber dress boots 2 outside the second rest pad 1 described in described resilient sleeper-bearing 3, the surrounding of the second rubber dress boots is provided with the epoxy resin layer 4 for fitting with railway roadbed.Described novel elastic rest pad assembly, than described original elastomeric bearing block assembly, the second novel rest pad 1 small volume, around the second rest pad and the second rubber dress boots, surrounding is enclosed with epoxy resin layer 4.
The packing material epoxy resin adopted has that mechanical property is excellent, insulating properties are good, cementability is strong, shrinkage factor is little and the advantage of good stability.
Adhering with epoxy resin ability is strong.Bondd by epoxy resin layer 4 and railway roadbed, the second novel rest pad 1 can be prevented to lose efficacy with the adhesive segment of railway roadbed 6, thus prevent from occurring space between the second novel rest pad 1 and railway roadbed 6, and then prevent the second rest pad 1 from coming to nothing, the second rubber dress boots 2 is immersed in water inefficacy.Meanwhile, epoxy resin shrinkage factor is little, not easily shrinks, and also can not produce gap with railway roadbed.
Moreover, by epoxy resin layer 4, in being wrapped in by described second rubber dress boots 2, avoid described second rubber dress boots 2 to be immersed in water inefficacy further.By the regulation method that the application's rubber dress boots lost efficacy, the elastomeric bearing block assembly that old rubber dress boots lost efficacy is administered, and after avoiding, occurs that rubber dress boots lost efficacy.
As Fig. 8-10, in the possibility of the present embodiment, described novel elastic rest pad component mounting method is, first by small-size hoisting machine tool, the second rest pad 1 assembling the second rubber dress boots 2 and resilient sleeper-bearing 3 is put into original elastomeric bearing block assembly position, then fastener for installing system 5 is by rail fastening, between the gap of the second novel rest pad 1 and railway roadbed 6, insert sebific duct 7, described sebific duct 7 is positioned at four corner points of the second rest pad; Then use the gap around the whole described novel rest pad of repair sheets equating, finally sprinkle dry quartz sand; After adhesive curing to be repaired, the epoxy resin that enhancing perfusion modulates, removes the sebific duct exposed after described epoxy resin cure, and brushes Sai Baisi concentrating agents shutoff sebific duct mouth.
It should be noted, the pressure of injection ring epoxy resins remains on 0.5 ~ 1.0Mpa, and environment temperature remains between 8 DEG C ~ 30 DEG C, to guarantee the result of use of epoxy resin.
After installing new elastomeric bearing block assembly, clear up new elastic supporting block assembly surface.Prevent waste residue etc. from affecting the security of operation of Rail Surface train.
Novel elastic rest pad Assemblies Example
See Figure 11, this embodiment offers a novel elastic rest pad assembly, described elastomeric bearing block assembly comprises the second rest pad 1 vertically placed, and described second rest pad 1 comprises upper and lower two parts, and two parts up and down of described second rest pad 1 are square column; The upper surface being positioned at the described square column of upper part is provided with track; The external diameter being positioned at the described square column of lower part is less than the external diameter of the described square column being positioned at upper part; Be provided with resilient sleeper-bearing 3 bottom described second rest pad 1, lower part and the described resilient sleeper-bearing 3 of described second rest pad 1 are wrapped up completely by the second rubber dress boots 2, and the external diameter of described second rubber dress boots 2 is equal with the external diameter of the described square column being positioned at upper part; The surrounding of the upper part of described second rubber dress boots 2 and described second rest pad 1 is bonded with epoxy resin layer 4.
Described novel elastic rest pad assembly, than described original elastomeric bearing block assembly, the second novel rest pad 1 small volume, around the second rest pad and the second rubber dress boots, surrounding is enclosed with epoxy resin layer 4.
The packing material epoxy resin adopted has that mechanical property is excellent, insulating properties are good, cementability is strong, shrinkage factor is little and the advantage of good stability.
Adhering with epoxy resin is very capable, bondd by epoxy resin layer 4 and railway roadbed, the second novel rest pad 1 can be prevented to lose efficacy with the adhesive segment of railway roadbed 6, thus prevent from occurring space between the second novel rest pad 1 and railway roadbed 6, and then preventing the second novel rest pad 1 from coming to nothing, the second rubber dress boots 2 is immersed in water inefficacy.Meanwhile, epoxy resin shrinkage factor is little, not easily shrinks, and also can not produce gap with railway roadbed.
Moreover, by epoxy resin layer 4, in being wrapped in by described second rubber dress boots 2, by the gap shutoff of described second rubber dress boots 2 with described second rest pad 1 upper part, avoid described second rubber dress boots 2 to be immersed in water inefficacy further.
Optionally, the described square column length of the upper part of described rest pad is 615mm, and width is 310mm, and the described square column length of the lower part of described rest pad is 590mm, and width is 280mm; The thickness of described epoxy resin layer is 1cm.The height 142mm of the lower part of described rest pad.
To sum up, by the regulation method for rubber dress boots inefficacy provided by the invention and novel elastic rest pad assembly, the elastomeric bearing block assembly that old rubber dress boots lost efficacy effectively is administered by the present invention, and occurs after avoiding that rubber dress boots lost efficacy.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. a regulation method for rubber dress boots inefficacy, is characterized in that, comprise the steps:
Determine the position of coming to nothing of original elastomeric bearing block assembly, described original elastomeric bearing block assembly comprises the first rest pad and is wrapped in the first rubber dress boots outside described rest pad, and described rubber dress boots is used for providing certain elasticity and fits with railway roadbed;
Unclamp fastener system;
Lift rail;
Take out original elastomeric bearing block assembly;
Installation of New Type elastomeric bearing block assembly, described novel elastic rest pad assembly comprises the second novel rest pad, be positioned at the resilient sleeper-bearing bottom described second rest pad, and be wrapped in and the second rubber dress boots outside the second rest pad described in described resilient sleeper-bearing, the surrounding of the second rubber dress boots is provided with the epoxy resin layer for fitting with railway roadbed.
2. the regulation method that lost efficacy of rubber dress boots according to claim 1, is characterized in that, described in unclamp in the step of fastener system, the rail scope of unclamping fastener is that rest pad to come to nothing before and after position in each 12m.
3. according to claim 1 rubber dress boots lost efficacy regulation method, it is characterized in that, described in lift in the step of rail, the raising height of described rail is 16cm.
4. according to claim 3 rubber dress boots lost efficacy regulation method, it is characterized in that, described in lift in the step of rail, the construction temperature of described rail should be no more than more than fastening-down temperature of rail+6 DEG C.
5. the regulation method of rubber dress boots inefficacy according to claim 1, is characterized in that, in the step of the original elastomeric bearing block assembly of described taking-up, described original first rest pad entirety is taken out.
6. the regulation method of rubber dress boots inefficacy according to claim 1, it is characterized in that, in the step of described Installation of New Type elastomeric bearing block assembly, described novel elastic rest pad component mounting method is, first the second rest pad assembling the second rubber dress boots and resilient sleeper-bearing is put into railway roadbed, then fastener for installing system is by rail fastening, and between the gap of the second rubber dress boots and railway roadbed, insert sebific duct, described sebific duct is positioned at four corner points of described second rest pad; Then use the gap around whole described second rest pad of repair sheets equating, finally sprinkle dry quartz sand; After adhesive curing to be repaired, the epoxy resin modulated to enhancing perfusion in gap by sebific duct, removes the sebific duct exposed after described epoxy resin cure, and brushes Sai Baisi concentrating agents shutoff sebific duct mouth.
7. the regulation method of rubber dress boots inefficacy according to claim 6, it is characterized in that, the pressure of injection ring epoxy resins remains on 0.5 ~ 1.0Mpa, and environment temperature remains on 8 DEG C ~ 30 DEG C.
8. the regulation method of rubber dress boots inefficacy according to claim 1, is characterized in that, after installing described novel elastic rest pad assembly, clear up described novel elastic rest pad assembly surface.
9. the novel elastic rest pad assembly of the regulation method lost efficacy for rubber dress boots, it is characterized in that, described novel elastic rest pad assembly comprises the second rest pad vertically placed, described second rest pad comprises upper and lower two parts, and two parts up and down of described second rest pad are the square column that size is different; The upper surface being positioned at the described square column of upper part is provided with track; The external diameter being positioned at the described square column of lower part is less than the external diameter of the described square column being positioned at upper part; Be provided with resilient sleeper-bearing bottom described second rest pad, lower part and the described resilient sleeper-bearing of described second rest pad are wrapped up completely by the second rubber dress boots, and the external diameter of described second rubber dress boots is equal with the external diameter of the described square column being positioned at upper part; The surrounding of the upper part of described second rubber dress boots and described second rest pad is bonded with epoxy resin layer.
10. elastomeric bearing block assembly according to claim 9, it is characterized in that, the described square column length being positioned at upper part is 615mm, width is 310mm, the described square column length being positioned at lower part is 590mm, width is 280mm; The thickness of described epoxy resin layer is 1cm.
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| CN201510631495.2A CN105239468B (en) | 2015-09-29 | 2015-09-29 | The regulation method and novel elastic supporting block assembly of rubber dress boots failure |
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| CN201510631495.2A CN105239468B (en) | 2015-09-29 | 2015-09-29 | The regulation method and novel elastic supporting block assembly of rubber dress boots failure |
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| CN107858871A (en) * | 2017-11-07 | 2018-03-30 | 中铁第勘察设计院集团有限公司 | The regulation processing method that railway tunnel solid concrete roabed sinks |
| CN109811595A (en) * | 2019-03-26 | 2019-05-28 | 北京市市政工程设计研究总院有限公司 | One kind can spell bomb disposal concrete sleeper and construction method |
| CN109940869A (en) * | 2019-05-05 | 2019-06-28 | 河北翼辰实业集团股份有限公司 | Tramcar score-rail entirety rubber package set technique, production system and structure |
| CN110726626A (en) * | 2019-11-26 | 2020-01-24 | 西南交通大学 | Interlaminar shear fatigue test device and method for testing interlaminar shear fatigue |
| CN111794018A (en) * | 2020-07-15 | 2020-10-20 | 中铁九局集团第六工程有限公司 | Construction method of ballastless track with replaceable supporting blocks by tunnel sleeve shoe method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107858871A (en) * | 2017-11-07 | 2018-03-30 | 中铁第勘察设计院集团有限公司 | The regulation processing method that railway tunnel solid concrete roabed sinks |
| CN109811595A (en) * | 2019-03-26 | 2019-05-28 | 北京市市政工程设计研究总院有限公司 | One kind can spell bomb disposal concrete sleeper and construction method |
| CN109940869A (en) * | 2019-05-05 | 2019-06-28 | 河北翼辰实业集团股份有限公司 | Tramcar score-rail entirety rubber package set technique, production system and structure |
| CN109940869B (en) * | 2019-05-05 | 2024-04-09 | 河北翼辰实业集团股份有限公司 | Tramcar grooved rail integral rubber sheath process, production system and structure |
| CN110726626A (en) * | 2019-11-26 | 2020-01-24 | 西南交通大学 | Interlaminar shear fatigue test device and method for testing interlaminar shear fatigue |
| CN111794018A (en) * | 2020-07-15 | 2020-10-20 | 中铁九局集团第六工程有限公司 | Construction method of ballastless track with replaceable supporting blocks by tunnel sleeve shoe method |
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| CN105239468B (en) | 2018-05-15 |
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