CN209162532U - A kind of speed per hour 120km/h metro depot test run line - Google Patents
A kind of speed per hour 120km/h metro depot test run line Download PDFInfo
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- CN209162532U CN209162532U CN201821573505.7U CN201821573505U CN209162532U CN 209162532 U CN209162532 U CN 209162532U CN 201821573505 U CN201821573505 U CN 201821573505U CN 209162532 U CN209162532 U CN 209162532U
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Abstract
The utility model discloses a kind of speed per hour 120km/h metro depot test run lines, it is characterized by: the speed per hour 120km/h metro depot test run line is not using single structure section, but it is formed using structure section longitudinal combination different from each other, and the speed per hour 120km/h metro depot test run line length >=2.2km.The utility model proposes the speed per hour 120km/h metro depot test run lines of different structure section combining form, have filled up the technological gap of speed per hour 120km/h metro depot test run line, create feasible condition for the development and test of speed per hour 120km/h subway.
Description
Technical field
The utility model belongs to novel urban field of track traffic, and in particular to a kind of speed per hour 120km/h metro depot
Test run line.
Background technique
Metro depot test run line is debugged to the subway train progress vehicle and signal dynamics of the administrative route of rolling stock section
Train after place, new car and maintenance is required could online operation after progress system debug and performance test in test run line.
Metro depot test run line has a very important role to the safety and reliability for guaranteeing train operation.It is existing that " subway is set
Meter specification " (GB 50157-2013) have higher requirement, but test run line cloth to the speed, sweep, the gradient etc. of test run line
Set and limited difficult arrangement by rolling stock section's land used condition, therefore, in metro depot design to the functional requirement of test run line into
Row reasonable analysis, preferred arrangement scheme are the problems for needing emphasis to solve.
Traditional train maximum speed 80km/h, rolling stock section's test run line length be 1.1~1.2km, generally use form for
Roadbed section；Train maximum speed 100km/h, test run line length be 1.5~1.7km, generally use form for roadbed with it is overhead
Combination can be met the requirements, and above-mentioned rolling stock section's train maximum speed is less than 100km/h, and test run line length is shorter, a combination thereof shape
Formula is simple.As train speed >=120km/h, test run line length is greatly increased, since rolling stock section's land used is limited, conventional design vehicle
It is unable to satisfy high speed test run requirement, the test run line of tunnel form need to have been introduced, and with the increase tunnel location of velocity amplitude by sky
Aerodynamics impact effect is obvious, therefore, it is necessary to further investigate to speed per hour 120km/h metro depot test run line.
Utility model content
For at least one of prior art the above defects or improvement requirements, the utility model passes through to its test run line
The demand analyses such as speed, sweep, the gradient, the land used condition arranged in conjunction with rolling stock section's total figure, construction, propose roadbed
Section, overhead section, U-type groove section, Rectangular Tunnel section, polymorphic speed per hour 120km/h railcar such as horse-shoe tunnel section
Section test run line, reasonably optimizing test run threaded list for speed per hour 120km/h train tunnel location big by aerodynamic effects factor
The civil engineering structures such as road segment structure section weaken rolling stock section's land used Resource Dependence to increase the flexibility of rolling stock section's general layout
Property, rolling stock section's land used is reduced from another point of view limits brought construction investment increase.
To achieve the above object, according to the one aspect of the utility model, a kind of speed per hour 120km/h railcar is provided
Section test run line, it is characterised in that: the speed per hour 120km/h metro depot test run line does not use single structure section,
It is formed using structure section longitudinal combination different from each other, and the speed per hour 120km/h metro depot test run line length >=
2.2km。
Preferably, the structure section different from each other includes that test run line roadbed section, overhead section of test run line, test run line are U-shaped
Slot section, test run line Rectangular Tunnel section, test run line horse-shoe tunnel section, the speed per hour 120km/h metro depot test run line is by it
In any two or more be composed.
Preferably, the test run line roadbed section, track are arranged on roadbed, central lines of track between contact net column away from
From being not less than 2.2m, if the opposite side side of contact net column there are other buildings, central lines of track to building outer profile away from
From not less than 1.8m.
Preferably, overhead section of the test run line, track are arranged on overpass, and central lines of track is between contact net column
Distance is not less than 2.2m, is not provided with evacuation platform, and overpass bridge width is 5.6m, setting light current electricity on the left of overpass direction of traffic
Forceful electric power cable is arranged in cable, overpass direction of traffic right side.
Preferably, the bottom of U-type groove, central lines of track to U-type groove two sides is arranged in the test run line U-type groove section, track
The distance of abutment wall is 2.1m, and forceful electric power cable, setting on the right side of U-type groove abutment wall direction of traffic are arranged on the left of U-type groove abutment wall direction of traffic
Weak-current cable.
Preferably, the bottom of Rectangular Tunnel, Rectangular Tunnel direction of traffic is arranged in the test run line Rectangular Tunnel section, track
The distance of left side wall to central lines of track is 2.75m, and the distance away from central lines of track is on the right side of Rectangular Tunnel direction of traffic
2.65m more than top rail level is highly 5.0m, forceful electric power cable, Rectangular Tunnel driving side is arranged on the left of Rectangular Tunnel direction of traffic
Weak-current cable is set to the right.
Preferably, the test run line horse-shoe tunnel section is made of 5 sections of arcs, wherein top arc radius R3.25m, side arc radius
The bottom of horse-shoe tunnel is arranged in R3.58m, bottom arc radius R6.0m, track, and setting is strong on the left of horse-shoe tunnel direction of traffic
Weak-current cable is arranged in electrical cables, horse-shoe tunnel direction of traffic right side.
Preferably for the linking of the interface of structure section different from each other, overhead section of the test run line and the examination
Between fare roadbed section, between the test run line U-type groove section and the test run line roadbed section, it is all made of cable shaft transition, and set
It is equipped with stretch base segment barricade masking cable.
Preferably for the linking of the interface of structure section different from each other, the test run line Rectangular Tunnel section and institute
When stating the strong and weak cable between test run line U-type groove section and other sections and needing to change sides, forceful electric power cable uses the side across Rectangular Tunnel
Formula, weak-current cable are worn under by the way of track.
Preferably, the speed per hour 120km/h metro depot test run line, according to include rolling stock section's land used condition limitation, apply
Factor including work engineering method determines the different combinations of structure section.
Above-mentioned preferred feature can be combined with each other as long as they do not conflict with each other.
In general, have the above technical solutions conceived by the present invention are compared with the prior art, with following
Beneficial effect:
1, the utility model is total in conjunction with rolling stock section by demand analyses such as speed, sweep, the gradients to its test run line
Land used condition, the construction for scheming arrangement, propose roadbed section, overhead section, U-type groove section, Rectangular Tunnel section, horse-shoe tunnel section
Etc. polymorphic speed per hour 120km/h metro depot test run line, speed per hour 120km/h metro depot test run line has been filled up
Technological gap, for speed per hour 120km/h subway development and test create feasible condition.
2, by aerodynamic effects factor big for speed per hour 120km/h train tunnel location, reasonably optimizing test run line
The civil engineering structures such as tunnel construction sections structure section, to increase the flexibility of rolling stock section's general layout, weaken rolling stock section's land used resource according to
Lai Xing.
3, compared to the low speed metro depot test run line of traditional single structure section, due to " metro design code "
(GB 50157-2013) requires test run line to should be level tangent track, and this requires rolling stock section bases to provide one section of test run line length
Level tangent track, on the one hand for rolling stock section's Site selection, more stringent requirements are proposed, another aspect test run line arrange by rolling stock section
Land used condition needs the affected industry of excavation and filling land reform when limiting difficult arrangement, increases construction investment；The utility model uses each other not
Same structure section longitudinal combination forms, and test run line length minimum only needs 2.2km, when the limitation of rolling stock section's land used condition is different, nothing
Operation need to be transformed, adaptation to local conditions chooses different structure section combinations, using different constructions, reduces rolling stock section's land used limit
Construction investment brought by making increases, and also eliminates limitation of the test run line to rolling stock section's Site selection.
Detailed description of the invention
Fig. 1 is that the generation of initial compression waves and tunnel interior air-flow flow to schematic diagram when train enters tunnel；
Fig. 2 is headstock pressure schematic diagram one when different tunnel cross-section trains cross hole and ventilating shaft；
Fig. 3 is headstock pressure schematic diagram two when different tunnel cross-section trains cross hole and ventilating shaft；
Fig. 4 is the speed per hour 120km/h metro depot test run line roadbed section track clearance figure of the utility model；
Fig. 5 is speed per hour 120km/h overhead section of track clearance figure of metro depot test run line of the utility model；
Fig. 6 is the speed per hour 120km/h metro depot test run line U-type groove section track clearance figure of the utility model；
Fig. 7 is the speed per hour 120km/h metro depot test run line Rectangular Tunnel segment structure cross-section diagram of the utility model；
Fig. 8 is the speed per hour 120km/h metro depot test run line horse-shoe tunnel segment structure cross-section diagram of the utility model.
1, this attached drawing size is in terms of millimeter.
2, size does not consider the factors such as construction error, measurement error, structure sediment, displacement deformation in attached drawing.
3, this attached drawing 4-8 is suitable for the structure section figure of straight line location V≤120km/h.
Specific embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only used to explain
The utility model is not used to limit the utility model.In addition, institute in the various embodiments of the present invention described below
The technical characteristic being related to can be combined with each other as long as they do not conflict with each other.With reference to embodiment to this
Utility model is further described.
The speed per hour 120km/h metro depot test run line of the utility model, test run line length should include start distance, coasting
Distance, braking distance etc., wherein train starting distance and braking distance can be according to curve of traction characteristics and highest test speed meter
It calculates, the coasting stage is distance travelled according to maximum speed and the calculating of coasting time.Maximum speed is the most main of influence test run line length
Factor is wanted, wherein starting acceleration is by >=1.0m/s2, service braking deceleration is by >=1.0m/s2, emergency braking deceleration by >=
1.2m/s2, thus under train maximum speed 120km/h, test run line length 2.2km under unloaded (AW0) state.
The speed per hour 120km/h metro depot test run line of the utility model, maximum speed target value have breached " subway
Design specification " most high speed angle value, many aerodynamic phenomenons negligible in low speed can not be ignored.Subway tunnel section
It is small, consider aerodynamic effects, reasonably optimizing tunnel blockage ratio is most important for cost saving.For general Type B
Train, shield internal diameter 5.4m, track clearance 5.2m, tunnel blockage ratio reach 0.5, have been not suitable for speed per hour 120km/h requirement.From
From the point of view of the research of aerodynamics in tunnel, blockage ratio is a key factor for influencing aerodynamics in tunnel phenomenon.Fig. 1 is column
The generation of initial compression waves and tunnel interior air-flow flow to schematic diagram when vehicle enters tunnel.
Car resistance of the train in tunnel mainly includes two parts: mechanical resistance DMWith aerodynamic drag DA, it is given below
A currently used fitting formula, i.e.,
D=DM+DA=(a+bv) W+cv2 (1)
In formula, a, b, c are and test related test coefficient, and v indicates that train speed, W indicate train weight.
Mechanical resistance DMCalculation formula are as follows: DM=(a+bv) W
Following formula is the empirical equation currently used for calculating aerodynamic drag, is had
In formula, v is train speed, and ρ is atmospheric density, and A ' is train basal area, CdpTo be pressed caused by pressure difference before and after car body
Poor resistance coefficient, d ' are train hydraulic diameter, and ι is train length, and λ ' is that comprehensive waterpower rubs and examines coefficient and (comprehensively considered train wall
The friction between bodies factor and air such as face, each compartment junction, pantograph, train bottom structure), it is seen that in bracket (1)
Indicate the resistance as brought by pressure difference before and after car body；(2) it indicates due to comprehensively considering the brought resistance consumption item that rubs.
From formula (1) and formula (2) it is found that train running resistance is not only related with train speed, and in tunnel caused by
Pressure difference is related before and after car body.Fig. 2 gives headstock pressure schematic diagram when different tunnel cross-section trains cross hole and ventilating shaft.
Pressure amplitude Con trolling index takes (Pbwmax)≤750Pa, pressure change gradient Con trolling index in subway carriage
(dPbn/dt)≤1500Pa/3s, according to simulation calculation and engineering analogy, Type B vehicle 120km/h speed per hour when driving, circular shield
Tunnel internal diameter takes 6.0m that can meet aerodynamic effects requirement in tunnel (this working condition pressure amplitude of variation 740Pa, gas pressure
Power variable gradient about 1450Pa/3s).It is 0.293 in conjunction with simulation calculation and route shield section blockage ratio, vehicle's contour cotton knot is
10.454m2, it can thus be appreciated that the rail level above headroom area in test run line tunnel is 35.68m2, so that it is determined that Rectangular Tunnel, shape of a hoof tunnel
The structure section in road, as shown in attached drawing 6-7.
The speed per hour 120km/h metro depot test run line of the utility model, the speed per hour 120km/h metro depot test run
Line does not use single structure section, is formed using structure section longitudinal combination different from each other, and the speed per hour
120km/h metro depot test run line length >=2.2km.
The structure section different from each other includes test run line roadbed section, overhead section of test run line, test run line U-type groove section, examination
Fare Rectangular Tunnel section, test run line horse-shoe tunnel section, the speed per hour 120km/h metro depot test run line is by therein any
Two or more are composed.The speed per hour 120km/h metro depot test run line is limited according to including rolling stock section's land used condition
Factor including system, construction determines the different combinations of structure section, combining form multiplicity.
As shown in figure 4, the test run line roadbed section, track is arranged on roadbed, and central lines of track is between contact net column
Distance be not less than 2.2m, if there are other buildings, central lines of track to building outer profile for the opposite side side of contact net column
Distance be not less than 1.8m.
As shown in figure 5, overhead section of the test run line, track is arranged on overpass, central lines of track to contact net column
Between distance be not less than 2.2m, be not provided with evacuation platform, overpass bridge width is 5.6m, and light current is arranged on the left of overpass direction of traffic
Forceful electric power cable is arranged in cable, overpass direction of traffic right side.
As shown in fig. 6, the test run line U-type groove section, the bottom of U-type groove, central lines of track to U-type groove two is arranged in track
The distance of side wall is 2.1m, and forceful electric power cable is arranged on the left of U-type groove abutment wall direction of traffic, sets on the right side of U-type groove abutment wall direction of traffic
Set weak-current cable.
As shown in fig. 7, the test run line Rectangular Tunnel section, the bottom of Rectangular Tunnel, Rectangular Tunnel driving is arranged in track
The distance of wall to central lines of track is 2.75m on the left of direction, and the distance away from central lines of track is on the right side of Rectangular Tunnel direction of traffic
2.65m more than top rail level is highly 5.0m, forceful electric power cable, Rectangular Tunnel driving side is arranged on the left of Rectangular Tunnel direction of traffic
Weak-current cable is set to the right.
As shown in figure 8, the test run line horse-shoe tunnel section, is made of 5 sections of arcs, wherein top arc radius R3.25m, side arc
Radius R3.58m, bottom arc radius R6.0m, track are arranged in the bottom of horse-shoe tunnel, set on the left of horse-shoe tunnel direction of traffic
Forceful electric power cable is set, weak-current cable is set on the right side of horse-shoe tunnel direction of traffic.
Linking for the interface of structure section different from each other, overhead section of the test run line and the test run line roadbed
Between section, between the test run line U-type groove section and the test run line roadbed section, it is all made of cable shaft transition, and be provided with one section
Roadbed section barricade covers cable.Linking for the interface of structure section different from each other, the test run line Rectangular Tunnel section
When strong and weak cable between the test run line U-type groove section and other sections needs to change sides, forceful electric power cable is used across Rectangular Tunnel
Mode, weak-current cable worn under by the way of track.
The high H of attached drawing middle orbit structure is for details see attached table.
1 track structure height of table
The utility model is by demand analyses such as speed, sweep, the gradients to its test run line, in conjunction with rolling stock section's total figure
The land used condition of arrangement, construction propose roadbed section, overhead section, U-type groove section, Rectangular Tunnel section, horse-shoe tunnel section etc.
Polymorphic speed per hour 120km/h metro depot test run line has filled up speed per hour 120km/h metro depot test run line
Technological gap creates feasible condition for the development and test of speed per hour 120km/h subway.
It is for speed per hour 120km/h train tunnel location big by aerodynamic effects factor, reasonably optimizing test run threaded list
The civil engineering structures such as road segment structure section weaken rolling stock section's land used Resource Dependence to increase the flexibility of rolling stock section's general layout
Property.
Compared to the low speed metro depot test run line of traditional single structure section, due to " metro design code " (GB
50157-2013) test run line is required to should be level tangent track, this requires rolling stock section bases to provide the flat of one section of test run line length
Straight line path, on the one hand for rolling stock section's Site selection, more stringent requirements are proposed, and another aspect test run line is arranged by rolling stock section's land used
Condition needs the affected industry of excavation and filling land reform when limiting difficult arrangement, increases construction investment；The utility model is using different from each other
Structure section longitudinal combination forms, and test run line length minimum only needs 2.2km, when the limitation of rolling stock section's land used condition is different, without changing
Affected industry, adaptation to local conditions choose different structure section combinations, using different constructions, reduce rolling stock section's land used and limit institute
Bring construction investment increases, and also eliminates limitation of the test run line to rolling stock section's Site selection.
As it will be easily appreciated by one skilled in the art that the above is only the preferred embodiment of the utility model only, not
To limit the utility model, any modification made within the spirit and principle of the present invention, equivalent replacement and change
Into etc., it should be included within the scope of protection of this utility model.
Claims (10)
1. a kind of speed per hour 120km/h metro depot test run line, it is characterised in that: the speed per hour 120km/h metro depot examination
Fare does not use single structure section, is formed using structure section longitudinal combination different from each other, and the speed per hour
120km/h metro depot test run line length >=2.2km.
2. speed per hour 120km/h metro depot test run line as described in claim 1, it is characterised in that:
The structure section different from each other includes test run line roadbed section, overhead section of test run line, test run line U-type groove section, test run line
Rectangular Tunnel section, test run line horse-shoe tunnel section, the speed per hour 120km/h metro depot test run line is by any two therein
Or more be composed.
3. speed per hour 120km/h metro depot test run line as claimed in claim 2, it is characterised in that:
The test run line roadbed section, track are arranged on roadbed, and central lines of track to the distance between contact net column is not less than
2.2m, if the opposite side side of contact net column, there are other buildings, the distance of central lines of track to building outer profile is not less than
1.8m。
4. speed per hour 120km/h metro depot test run line as claimed in claim 2, it is characterised in that:
Overhead section of the test run line, track are arranged on overpass, and central lines of track to the distance between contact net column is not less than
2.2m is not provided with evacuation platform, and overpass bridge width is 5.6m, and weak-current cable, overpass row is arranged on the left of overpass direction of traffic
Forceful electric power cable is set on the right side of vehicle direction.
5. speed per hour 120km/h metro depot test run line as claimed in claim 2, it is characterised in that:
The bottom of U-type groove is arranged in the test run line U-type groove section, track, and the distance of central lines of track to U-type groove two sides abutment wall is
2.1m, U-type groove abutment wall direction of traffic left side are arranged forceful electric power cable, weak-current cable are arranged on the right side of U-type groove abutment wall direction of traffic.
6. speed per hour 120km/h metro depot test run line as claimed in claim 2, it is characterised in that:
The bottom of Rectangular Tunnel, Rectangular Tunnel direction of traffic left side wall to line is arranged in the test run line Rectangular Tunnel section, track
The distance of Lu Zhizheng line is 2.75m, and the distance away from central lines of track is 2.65m, top rail level on the right side of Rectangular Tunnel direction of traffic
The above height is 5.0m, and forceful electric power cable is arranged on the left of Rectangular Tunnel direction of traffic, light current is arranged on the right side of Rectangular Tunnel direction of traffic
Cable.
7. speed per hour 120km/h metro depot test run line as claimed in claim 2, it is characterised in that:
The test run line horse-shoe tunnel section is made of 5 sections of arcs, wherein top arc radius R3.25m, side arc radius R3.58m, bottom arc
Radius R6.0m, track are arranged in the bottom of horse-shoe tunnel, forceful electric power cable, horseshoe are arranged on the left of horse-shoe tunnel direction of traffic
Weak-current cable is set on the right side of shape tunnel direction of traffic.
8. speed per hour 120km/h metro depot test run line as claimed in claim 2, it is characterised in that:
Linking for the interface of structure section different from each other, overhead section of the test run line and the test run line roadbed section it
Between, between the test run line U-type groove section and the test run line roadbed section, be all made of cable shaft transition, and be provided with stretch base
Section barricade covers cable.
9. speed per hour 120km/h metro depot test run line as claimed in claim 2, it is characterised in that:
Linking for the interface of structure section different from each other, the test run line Rectangular Tunnel section and the test run line are U-shaped
When strong and weak cable between slot section and other sections needs to change sides, forceful electric power cable on across Rectangular Tunnel by the way of, weak-current cable
By the way of wearing track under.
10. speed per hour 120km/h metro depot test run line as claimed in claim 2, it is characterised in that:
The speed per hour 120km/h metro depot test run line, according to including the limitation of rolling stock section's land used condition, construction
Factor determines the different combinations of structure section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821573505.7U CN209162532U (en) | 2018-09-26 | 2018-09-26 | A kind of speed per hour 120km/h metro depot test run line |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201821573505.7U CN209162532U (en) | 2018-09-26 | 2018-09-26 | A kind of speed per hour 120km/h metro depot test run line |
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ID=67332199
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109183523A (en) * | 2018-09-26 | 2019-01-11 | 中铁第四勘察设计院集团有限公司 | A kind of speed per hour 120km/h metro depot test run line |
-
2018
- 2018-09-26 CN CN201821573505.7U patent/CN209162532U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109183523A (en) * | 2018-09-26 | 2019-01-11 | 中铁第四勘察设计院集团有限公司 | A kind of speed per hour 120km/h metro depot test run line |
| CN109183523B (en) * | 2018-09-26 | 2024-07-16 | 中铁第四勘察设计院集团有限公司 | Test line for subway vehicle section with speed per hour of 120km/h |
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