CN106758590B - Construction temporary beam for replacing railway track under non-stop condition and construction method - Google Patents
Construction temporary beam for replacing railway track under non-stop condition and construction method Download PDFInfo
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- CN106758590B CN106758590B CN201611186826.7A CN201611186826A CN106758590B CN 106758590 B CN106758590 B CN 106758590B CN 201611186826 A CN201611186826 A CN 201611186826A CN 106758590 B CN106758590 B CN 106758590B
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- 238000000034 method Methods 0.000 claims abstract description 12
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 46
- 229910052742 iron Inorganic materials 0.000 claims description 23
- 241001669679 Eleotris Species 0.000 claims description 6
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- 230000008859 change Effects 0.000 claims description 4
- 239000004575 stone Substances 0.000 claims description 4
- 239000003245 coal Substances 0.000 claims 1
- 239000012634 fragment Substances 0.000 claims 1
- 230000000712 assembly Effects 0.000 abstract description 3
- 238000000429 assembly Methods 0.000 abstract description 3
- 239000004570 mortar (masonry) Substances 0.000 description 7
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- 238000005516 engineering process Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
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- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
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- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
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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
- E01B29/00—Laying, rebuilding, or taking-up tracks; Tools or machines therefor
- E01B29/02—Transporting, laying, removing, or renewing lengths of assembled track, assembled switches, or assembled crossings
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D18/00—Bridges specially adapted for particular applications or functions not provided for elsewhere, e.g. aqueducts, bridges for supporting pipe-lines
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Abstract
The invention relates to the field of railway construction, and discloses a construction temporary beam for replacing a railway track under the condition of no outage and a construction method, wherein the construction temporary beam is arranged at the position of the track to be replaced and comprises the following components: the roadbed beam comprises roadbed beam supports, longitudinal beams, cross beams and track supporting assemblies; in the installation state, the roadbed beam supports are arranged below a roadbed surface of a track to be replaced, longitudinal beams are arranged on two sides of the railway track respectively, each longitudinal beam is erected between the adjacent roadbed beam supports along the direction of the railway track, a plurality of cross beams which are parallel to each other are erected between the longitudinal beams, and the cross beams and the longitudinal beams are detachably fixed; a rail support assembly is disposed between the cross beam and the rail to secure the rail to the cross beam. The steel rail is supported by the construction temporary beam at the position of the track to be replaced so as to meet the requirement of normal operation of the train under the load condition. After the steel rails are supported, in the window-opening time, the original track facilities are dismantled, the track facilities of the ballastless track are laid, and the construction temporary beam is finally dismantled, so that the railway track replacement under the condition of no stop is realized, and the method is safe, stable and efficient.
Description
Technical Field
The invention relates to the field of railway construction, in particular to a construction temporary beam for replacing a railway track under the condition of non-stop operation and a construction method for replacing the railway track under the condition of non-stop operation.
Background
At present, in domestic and foreign railways, ballastless tracks are adopted for high-speed railways, ballastless tracks are mostly adopted for passenger and cargo co-transport railways and heavy haul railways in bridges and long and large tunnels, ballastless tracks are adopted for large and large tunnels of black-sheath mountains of west Kangshi roads, east Qinling mountains of Ningxi roads, Lanxin roads, main railways of Qiangugui roads, Dali roads and the like, and ballastless tracks are also adopted for heavy haul railways of Mongolian railways, Shanxi central and south channels and the like. The ballastless track has good structural continuity and stability; the long-term maintenance of the railway has the characteristics of strong durability, good maintainability, small maintenance workload and the like, and is widely applied to domestic and foreign railways.
At present, the built heavy haul railway in China can not meet the operation requirement along with the continuous increase of the transportation quantity requirement, and meanwhile, the problems of substrate diseases of ballast tracks in tunnels in different degrees exist. In order to improve the railway carrying capacity, the axle weight of a locomotive needs to be increased, and the tunnel base damage is controlled, the most fundamental solution is to replace a ballast track in a tunnel with a ballastless track, so that the railway carrying capacity can be improved, and the problem of the tunnel base damage can be reduced. However, no mature construction device and method are formed at present how to replace the ballast track in the tunnel with the ballastless track without influencing the operation condition.
Disclosure of Invention
The invention aims to provide a construction temporary beam for replacing a railway track under the condition of no shutdown and a construction method, and the technology can solve the problem of replacing a ballast track with a steel rail support in a ballastless track under the condition of no shutdown.
In order to achieve the above object, the present invention provides a construction girder for replacing a railway track without stopping operation, which is provided at a track to be replaced, and includes: the roadbed beam comprises roadbed beam supports, longitudinal beams, cross beams and track supporting assemblies; in the installation state, the roadbed beam supports are arranged below a roadbed surface of a track to be replaced, the longitudinal beams are respectively arranged on two sides of the railway track, each longitudinal beam is erected between two adjacent roadbed beam supports along the direction of the railway track, the longitudinal beams are erected with a plurality of cross beams which are parallel to each other, and the cross beams and the longitudinal beams are detachably fixed; and a track supporting component is arranged between the cross beam and the steel rail so as to fix the steel rail on the cross beam.
Preferably, in a rectangular-like shape having two longitudinal beams as long sides, a difference between diagonal lines is 15mm or less.
Preferably, a plurality of groups of first mounting holes are arranged on the longitudinal beam at equal intervals in the axial direction, and a group of second mounting holes are respectively arranged at two ends of the cross beam; and each group of the first mounting holes is provided with an iron seat, the cross beam is placed on the iron seat, and the first mounting holes correspond to the second mounting holes in position and are used for penetrating through connecting bolts.
Preferably, the rail support assembly comprises: rubber tie plate, insulating gauge block, rail bullet strip fastener, the rubber tie plate is in the rail installation position of crossbeam, the rail is arranged in on the rubber tie plate, rail installation position is in a parallel with the ascending both sides of crossbeam direction still set up rail bullet strip fastener, two the inboard of rail bullet strip fastener with set up between the side of rail insulating gauge block, rail bullet strip fastener passes through the fastener iron stand to be fixed on the crossbeam.
Preferably, when the application environment of the construction temporary beam is a curved section track, the upper part of the longitudinal beam is additionally provided with a transverse support, and the roadbed beam support is provided with a super-high structure.
The invention also provides a construction method for replacing the railway track by adopting the construction temporary beam without stopping operation, which comprises the following steps:
determining technical parameters of the construction temporary beam according to the railway track condition;
erecting the construction temporary beam at the position of the track to be replaced;
replacing the ballastless track by adopting a segmented construction mode;
and removing the construction temporary beam.
Preferably, the railway track condition comprises: the environment of the track and the track condition; wherein the environment to which the track belongs comprises: constructing a railway subgrade, a tunnel overhead line and a small bridge; the track conditions include: the steel rail of the line is not lighter than 43kg/m, and the highest speed limit of the traveling crane in the linear and curve sections is 35 km/h; the temperature difference value of the concrete sleeper rail at the seamless line section is +/-10 ℃; the minimum curve radius of the allowed line is 180m, and the curve radius is less than 600 m.
Preferably, the technical parameters of the construction temporary beam include: length, width of longeron, the width of crossbeam of the just roof beam of construction, rail bullet strip fastener, iron stand, support, insulating gauge block, fastener iron stand, the size of rubber pad board.
Preferably, the erection construction temporary girder includes:
placing a plurality of roadbed beam supports with preset heights below a roadbed surface of a track to be replaced;
placing longitudinal beams on two sides on the roadbed beam support;
placing an iron seat on each group of first mounting holes of the longitudinal beam;
erecting a plurality of cross beams between two longitudinal beams one by one, enabling a group of second mounting holes at two ends of each cross beam to correspond to a group of first mounting holes, penetrating connecting bolts and screwing; the cross beams are positioned between the sleepers;
a rubber base plate and an insulating gauge block are arranged in a steel rail mounting position of each cross beam, a steel rail is arranged on the rubber base plate, and a steel rail elastic strip fastener is arranged between the cross beam and the steel rail.
Preferably, when the application environment of the construction temporary beam is a curved section track, the upper part of the longitudinal beam is additionally provided with a transverse support, and the roadbed beam support is provided with a super-high structure.
Preferably, the ballastless track replacement includes:
when the construction temporary beam is used for normal train load operation, the concrete sleeper is removed;
removing broken stones at the position of a rail to be replaced;
reserving installation spaces for a track slab base, a track slab elastic cushion layer and a track slab between the bottom of the tunnel and the track surface;
pouring concrete at the bottom of the installation space to construct a track slab base;
removing the cross beam at the position of the track to be replaced, and laying a track plate and an elastic cushion layer on a track plate base;
and installing a bounce fastener on the track plate to fix the steel rail.
Through the technical scheme, the steel rail is supported at the position of the track to be replaced through the construction temporary beam, so that the normal operation under the condition of train load is met. After the steel rails are supported, in the window-opening time, the original track facilities are dismantled, the track facilities of the ballastless track are laid, and the construction temporary beam is finally dismantled, so that the railway track replacement under the condition of no stop is realized, and the method is safe, stable and efficient.
Additional features and advantages of the invention will be set forth in the detailed description which follows.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic structural view of a construction joist according to an embodiment of the present invention;
FIG. 2 is an enlarged view of area A of FIG. 1;
FIG. 3 is an enlarged view of region B of FIG. 1;
FIG. 4 is a schematic view of the construction joists of one embodiment of the present invention;
FIG. 5 is a schematic view of the installation of a stringer according to one embodiment of the present invention;
FIG. 6 is a schematic longitudinal cross-sectional view of the cross-beam assembly in accordance with one embodiment of the present invention;
FIG. 7 is a cross-sectional view of a beam mount in accordance with an embodiment of the present invention.
Description of the reference numerals
1, longitudinal beams; 2, a cross beam; 3, an iron seat; 4, a roadbed girder support; 5 a rail support assembly; 6 roads of basal planes; 7 sleepers; 2.1 rubber pad; 2.2 fastener iron seat; 2.3 insulating the gauge block; 2.4 steel rails; 2.5 bolts; 2.6 elastic rail fastener.
Detailed Description
The following detailed description of embodiments of the invention refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.
In the present invention, unless otherwise specified, the terms of orientation such as "upper, lower, left, and right" are generally used to refer to the orientation of an article when the article is normally placed, and "inner and outer" refer to the internal space and the external space of an object.
Based on the fact that no mature and effective technology exists at present, the ballast track is replaced by the ballastless track under the condition of no continuous operation. The scheme provides a construction temporary beam and a construction method for replacing a railway track under the condition of no stop.
This just roof beam is used for setting up in waiting to change track department to be under construction, and it includes: the roadbed beam comprises roadbed beam supports, longitudinal beams, cross beams and track supporting assemblies; the railway track comprises roadbed beam supports, longitudinal beams, transverse beams and longitudinal beams, wherein the roadbed beam supports are arranged below a roadbed of a track to be replaced in an installation state, the longitudinal beams are arranged on two sides of the railway track respectively, each longitudinal beam is erected between two adjacent roadbed beam supports along the direction of the railway track, the longitudinal beams are erected with a plurality of transverse beams which are parallel to each other, and the transverse beams and the longitudinal beams are detachably fixed; a rail support assembly is disposed between the cross beam and the rail to secure the rail to the cross beam.
The construction method for replacing the railway track under the condition of no shutdown comprises the following steps: determining technical parameters of the construction temporary beam according to the railway track condition; erecting the construction temporary beam at the position of the track to be replaced; replacing the ballastless track by adopting a segmented construction mode; and (5) dismantling the construction temporary beam.
And supporting the steel rail at the position of the track to be replaced by a construction temporary beam so as to meet the normal operation of the train under the load condition. After the steel rails are supported, in the window-opening time, the original track facilities are dismantled, the track facilities of the ballastless track are laid, and the construction temporary beam is finally dismantled, so that the railway track replacement under the condition of no stop is realized, and the method is safe, stable and efficient.
Next, the technique is described in detail by some specific embodiments:
the construction temporary beam provided by the scheme is applied to construction operation of replacing the railway track under the condition of no outage. The construction beam is arranged at a track to be replaced in use, as shown in fig. 1 to 3, and comprises: the railway roadbed comprises a roadbed beam support 4, longitudinal beams 1, cross beams 2 and a track support assembly 5. The longitudinal beams are arranged on two sides of the railway track, and can be one side or a plurality of sides. The cross beams 2 are multiple. Wherein, the subgrade beam support 4 sets up below waiting to change orbital subgrade face 6, plays the effect of support, and this subgrade beam support 4 can have a large number of presentation modes, for example: in the first mode, a strip-shaped three-dimensional support is completely arranged along the installation direction of the longitudinal beams 1, and the longitudinal beams 1 on two sides are directly arranged on the support; in the second mode, two independent strip-shaped three-dimensional supports are respectively arranged along the mounting direction of the longitudinal beams 1 on the two sides, and the two longitudinal beams 1 are respectively and correspondingly arranged on one strip-shaped three-dimensional support; in the third mode, based on the first mode or the second mode, the whole structure is uniformly broken into the split structures, and the split structures are uniformly (preferably) or non-uniformly arranged. Taking a longitudinal beam on each side as an example, two longitudinal beams 1 are erected between two adjacent roadbed beam supports 4 along the direction of the railway track, and the longitudinal beams 1 and the roadbed beam supports 4 are fixed by bolts 2.5 (one mode of detachable connection, in other embodiments, other modes can be adopted); a plurality of cross beams 2 which are parallel to each other are erected on the two longitudinal beams 1, and the cross beams 2 and the longitudinal beams 1 are fixed through bolts 2.5; between the cross beam 2 and the rail 2.4 a rail support assembly 5 is arranged to secure the rail 2.4 to the cross beam 2. The sizes, types and arrangement modes (such as height, width, spacing distance and the like) of the roadbed beam support 4, the longitudinal beam 1 and the transverse beam 2 are determined according to the scene of a replacement site and the line condition of the railway track.
Taking a 5.85m roadbed construction temporary beam as an example, the components are shown in table 1.
TABLE 1
In the process of erecting the longitudinal beams 1, the position relationship between the two longitudinal beams 1 and the position relationship between the longitudinal beams 1 and the roadbed beam support 4 need to be considered, firstly, the longitudinal beams 1 need to be positioned in the middle of the roadbed beam support 4, the two longitudinal beams 1 stand on the roadbed beam support 4 to form a rectangular-like structure, the two longitudinal beams 1 are two long sides of the rectangular-like structure, and in order to achieve the mutual parallel of the two longitudinal beams 1 as far as possible, the difference of diagonal lines in the rectangular-like structure with the two longitudinal beams 1 as the long sides is determined to be less than or equal to 15 mm.
The longitudinal beam 1 is provided with a plurality of groups of first mounting holes at equal intervals in the axial direction, each group of first mounting holes can be 4 or 6, and a plurality of first mounting holes of each group form a stable stress structure. Two ends of the cross beam 2 are respectively provided with a group of second mounting holes, and the second mounting holes are in one-to-one correspondence (position, size and the like) with the first mounting holes. An iron seat 3 is arranged between the connection part of the longitudinal beam 1 and the cross beam 2. Specifically, an iron seat 3 is arranged on each group of first mounting holes, a cross beam 2 is placed on the iron seat 3, the first mounting holes correspond to the second mounting holes in position, and a connecting bolt 2.5 penetrates through the first mounting holes and is screwed down.
Similarly, the above-mentioned similar definition criteria are also required between the two cross beams 2. However, since the longitudinal beam 1 is provided with a plurality of groups of first mounting holes, the distribution of the plurality of groups of first mounting holes requires that the difference between the diagonal lines of the rectangles formed by two adjacent groups of first mounting holes on the longitudinal beam 1 and two corresponding groups of first mounting holes on the other longitudinal beam 1 is within a preset range.
In connection with the above-mentioned track support assembly 5, it mainly comprises rubber tie plate 2.1, insulating gauge block 2.3, rail elastic strip fastener 2.6, set up two rail installation positions that are used for placing rail 2.4 on the crossbeam 2, rubber tie plate 2.1 is in on the rail installation position of crossbeam 2, on rubber tie plate 2.1 was arranged in to rail 2.4, rail installation position still set up rail elastic strip fastener 2.6 in the both sides that are on a parallel with crossbeam 2 direction, set up insulating gauge block 2.3 between the inboard of two rail elastic strip fasteners 2.6 and the side of rail 2.4, rail elastic strip fastener 2.6 passes through fastener iron stand 2.2 to be fixed on crossbeam 2.
In other embodiments, for example, when the application environment of the construction temporary girder is a curved section track, the upper part of the longitudinal girder 1 is additionally provided with a transverse support, and the subgrade girder support 4 is provided with a super-high structure.
Next, a detailed description will be given of a construction method of replacing a railway track by a girder without stopping operation by using the above construction in the present technology, taking one longitudinal girder on each side as an example. The construction method comprises the following steps:
step 110, determining technical parameters of the construction temporary beam according to the railway track condition;
the railway track conditions include: the environment of the track and the track condition; wherein, the environment to which the track belongs includes: constructing a railway subgrade, a tunnel overhead line and a small bridge; the track conditions include: the steel rail of the line is not lighter than 43kg/m, and the highest speed limit of the traveling crane in the linear and curve sections is 35 km/h; the temperature difference value of the concrete sleeper rail at the seamless line section is +/-10 ℃; the minimum curve radius of the allowed line is 180m, and the curve radius is less than 600 m;
the technical parameters of the construction temporary beam comprise: length, width of longitudinal beam 1 and width of transverse beam 2 of the construction temporary beam, and sizes of steel rail elastic strip fastener 2.6, iron seat 3, support, insulating gauge block 2.3, fastener iron seat 2.2 and rubber base plate 2.1.
Step 210, erecting a construction temporary beam at a position of a track to be replaced;
as shown in fig. 4 and 5, this step includes installing the longitudinal beams 1, the transverse beams 2 and adding lateral and longitudinal support. The method specifically comprises the following steps:
step 210-1, placing a plurality of roadbed beam supports 4 with preset heights below a roadbed surface 6 of a track to be replaced;
and calculating the height of the support, placing the roadbed girder support 4, and selecting a large support or a small support of 0.6x0.6m according to the bearing capacity of the foundation. If in the curve section, the roadbed beam supports 4 are arranged to be ultrahigh; and the upper part of the longitudinal beam 1 is additionally provided with a transverse support.
Step 210-2, placing two longitudinal beams 1 on a roadbed beam support 4;
two longitudinal beams 1 are placed on the support 4, and the diagonal difference of the two longitudinal beams is not larger than 15 mm.
210-3, placing an iron seat 3 on each group of first mounting holes of the longitudinal beam 1;
the iron seat 3 is placed beside the hole part of the longitudinal beam 1 for standby.
Step 210-4, erecting a plurality of cross beams 2 between two longitudinal beams 1 one by one, enabling a group of second mounting holes at two ends of each cross beam 2 to correspond to a group of first mounting holes, penetrating and installing connecting bolts 2.5, and screwing; the cross beams 2 are positioned between the sleepers 7;
as shown in fig. 6 and 7, the mounting beam 2 is positioned between two sleepers 7. Excavating transverse grooves of 0.35m multiplied by 0.35m between the sleepers 7, and excavating the positions of the transverse grooves which are spaced by 1 cross beam 2;
and (3) penetrating the cross beam 2 into the transverse groove to align with the connecting hole position of the longitudinal beam 1, placing the iron seat 3 between the longitudinal beam 1 and the cross beam 2, aligning the four hole positions, adjusting the position of the cross beam 2, and tightening the connecting bolt 2.5.
210-5, installing a rubber pad 2.1 and an insulating gauge block 2.3 in a steel rail 2.4 installation position of each beam 2, placing the steel rail 2.4 on the rubber pad 2.1, and installing a steel rail elastic strip fastener 2.6 between the beam 2 and the steel rail 2.4.
Installing a rubber base plate 2.1 and an insulating gauge block 2.3, and installing a steel rail elastic strip fastener 2.6 by using a special elastic strip wrench. The ballast is removed one by one and all the beams 2 are connected in place as shown in fig. 6. In the erection process, all the bolts 2.5, the rubber base plate 2.1 and the steel rail elastic strip fasteners 2.6 cannot be neglected to be installed.
In other embodiments, the roadbed construction beam is used on the curve, and the longitudinal beam and the cross brace are added on the curve, so that the transverse resistance is increased, and the rail expansion is prevented.
310, replacing the ballastless track;
the replacement of the ballastless track comprises preparation work before construction and construction of the ballastless track.
The preparation work before construction comprises the following steps:
310-1, confirming that the construction temporary beam can be safely supported under the action of train load.
310-2, the original concrete sleeper 7 is removed and transported to a safe area, and the passing of the train in the construction intermittence period is not influenced.
310-3, removing all broken stones of the ballast bed replacing section and transporting away.
And 310-4, measuring the distance from the bottom of the tunnel to the rail surface, and ensuring the installation space of the track slab base, the track slab elastic cushion layer and the track slab.
The construction of the ballastless track takes a CRTS 1 type slab ballastless track slab as an example for description, and the main construction steps comprise:
and 310-5, installing a track slab concrete base template and pouring concrete.
310-6, paving the track slab after the track slab base has certain strength.
The track slab laying method mainly comprises the following steps:
1) beam beam for construction
Because the height of the cross beams of the construction temporary beam is 30cm and the distance is small, the cross beams must be removed firstly. And (3) selecting nodes with longer skylight time for construction, dismantling the cross beams within the length range of 10m, and predicting to replace 2 track plates.
2) Track slab rough paving
The track slab is preferably laid by adopting special construction equipment, after the track slab is initially laid, personnel and tools are immediately arranged to preliminarily adjust the track slab, and the track slab is adjusted to the position of the contour line as much as possible.
3) Track slab fine adjustment
The track slab fine adjustment adopts an automatic tracking total station speed-adjusting standard frame, the adjustment amount of the track slab is adjusted by a three-way jack, and the travel is 0.5 mm. And adjusting the deflection angle of each track board in the curve section, and checking by a chord measuring method.
4) Temporary support track plate
And adjusting the rail plate cushion blocks to enable the cushion blocks to be filled with the longitudinal steel rail, and the transverse left side and the transverse right side of the steel rail are respectively more than 30cm, so that the load of the train can be uniformly transmitted to the support and the bottom of the tunnel. And the stable support of the lateral track plate is increased.
5) CA mortar pouring
The stirring process of the mortar must strictly stir according to the parameters set by the mortar vehicle, and any adjustment is forbidden.
6) Convex concrete construction and resin pouring for blocking platform
When the convex blocking platform is constructed later, after the track slab is filled with mortar for 3 days, the position of the convex blocking platform is lofted, and concrete is poured; when the convex blocking platform is constructed firstly, after mortar is poured for 3 days, resin pouring between the track plate and the convex blocking platform is carried out, and the gap is ensured to be between 3 and 6 cm.
And step 410, dismantling the construction temporary beam.
And after the construction of the ballastless track structure is completed and the strength of the mortar reaches the design requirement, the temporary construction temporary beam is dismantled.
After the construction of the ballastless track structure is completed and the strength of mortar meets the design requirement, the train passing needs to be recovered, the longitudinal and transverse supports of the track slab are removed, and the temporary construction temporary beam is removed. The main longitudinal beam and the roadbed beam support are mainly dismantled, and the main longitudinal beam can be dismantled after the transverse beams are completely dismantled and the track slab is installed. And then quickly dismantling the roadbed girder support. And (5) line equipment is supplemented, maintenance is strengthened, and the place exceeding the limit is treated in time. And after the line changes tend to be stable, entering the next section of circular operation.
The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, however, the present invention is not limited to the specific details of the above embodiments, and various simple modifications can be made to the technical solution of the present invention within the technical idea of the present invention, and these simple modifications are within the protective scope of the present invention.
It should be noted that the various features described in the above embodiments may be combined in any suitable manner without departing from the scope of the invention. The invention is not described in detail in order to avoid unnecessary repetition.
In addition, any combination of the various embodiments of the present invention is also possible, and the same should be considered as the disclosure of the present invention as long as it does not depart from the spirit of the present invention.
Claims (7)
1. The utility model provides a just roof beam of construction for carrying out under the condition of not shutting down to have the tiny fragments of stone, coal, etc. to change for ballastless railway track, its characterized in that for set up in waiting to change track department, it includes: the device comprises a roadbed beam support (4), a longitudinal beam (1), a cross beam (2) and a track support assembly (5), wherein the length of the longitudinal beam is greater than that of the cross beam; in the installation state, the roadbed beam supports (4) are arranged below a roadbed surface (6) of a track to be replaced, the longitudinal beams (1) are respectively arranged on two sides of a railway track, each longitudinal beam (1) is erected between the adjacent roadbed beam supports (4) along the direction of the railway track, a plurality of transverse beams (2) which are parallel to each other are erected among the longitudinal beams (1), and the transverse beams (2) and the longitudinal beams (1) are detachably fixed; a track supporting component (5) is arranged between the cross beam (2) and the steel rail (2.4) so as to fix the steel rail (2.4) on the cross beam (2);
in the rectangle with two longitudinal beams (1) as long sides, the difference of diagonal lines is less than or equal to 15 mm.
2. The construction beam as claimed in claim 1, wherein the longitudinal beam (1) is provided with a plurality of groups of first mounting holes at equal intervals in the axial direction, and two ends of the transverse beam (2) are respectively provided with a group of second mounting holes; every group set up iron seat (3) on the first mounting hole, place on iron seat (3) crossbeam (2), first mounting hole with the second mounting hole position corresponds for wear to establish bolt (2.5).
3. The construction beam as claimed in claim 1, wherein the rail support assembly (5) comprises: rubber tie plate (2.1), insulating gauge block (2.3), rail bullet strip fastener (2.6), rubber tie plate (2.1) is in the rail installation position of crossbeam (2), rail (2.4) are arranged in on rubber tie plate (2.1), the rail installation position is on a parallel with crossbeam (2) both sides in the side still set up rail bullet strip fastener (2.6), two the inboard of rail bullet strip fastener (2.6) with set up between the side of rail (2.4) insulating gauge block (2.3), rail bullet strip fastener (2.6) are fixed through fastener iron stand (2.2) on crossbeam (2).
4. The construction beam as claimed in any one of claims 1-3, characterized in that when the application environment of the construction beam is a curved section track, the upper part of the longitudinal beam (1) is additionally provided with a transverse support, and the foundation beam support (4) is provided with a super high structure.
5. A construction method for replacing a ballast track with a ballastless railway track without stopping operation is characterized by comprising the following steps:
determining technical parameters of the construction temporary beam according to the railway track condition;
erecting the construction temporary beam of any one of claims 1 to 4 at a track to be replaced;
replacing the ballastless track by adopting a segmented construction mode;
dismantling the construction temporary beam;
the construction temporary beam erecting method comprises the following steps:
placing a plurality of roadbed beam supports with preset heights below a roadbed surface of a track to be replaced;
placing longitudinal beams on two sides on the roadbed beam support;
placing an iron seat on each group of first mounting holes of the longitudinal beam;
erecting a plurality of cross beams between two longitudinal beams one by one, enabling a group of second mounting holes at two ends of each cross beam to correspond to a group of first mounting holes, penetrating connecting bolts and screwing; the cross beams are positioned between the sleepers;
a rubber base plate and an insulating gauge block are arranged in a steel rail mounting position of each cross beam, a steel rail is arranged on the rubber base plate, and a steel rail elastic strip fastener is arranged between the cross beam and the steel rail.
6. The construction method according to claim 5,
the railway track condition includes: the environment of the track and the track condition; wherein the environment to which the track belongs comprises: constructing a railway subgrade, a tunnel overhead line and a small bridge; the track conditions include: the steel rail of the line is not lighter than 43kg/m, and the highest speed limit of the traveling crane in the linear and curve sections is 35 km/h; the temperature difference value of the concrete sleeper rail at the seamless line section is +/-10 ℃; the minimum curve radius of the allowed line is 180m, and the curve radius is less than 600 m; and/or the presence of a gas in the gas,
the technical parameters of the construction temporary beam comprise: length, width of longeron, the width of crossbeam of the just roof beam of construction, rail bullet strip fastener, iron stand, support, insulating gauge block, fastener iron stand, the size of rubber pad board.
7. The construction method according to any one of claims 5 to 6, wherein the replacing the ballastless track comprises:
when the construction temporary beam is used for normal train load operation, the concrete sleeper is removed;
removing broken stones at the position of a rail to be replaced;
reserving installation spaces for a track slab base, a track slab elastic cushion layer and a track slab between the bottom of the tunnel and the track surface;
pouring concrete at the bottom of the installation space to construct a track slab base;
removing the cross beam at the position of the track to be replaced, and laying a track plate and an elastic cushion layer on a track plate base;
and installing a bounce fastener on the track plate to fix the steel rail.
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| CN107268352A (en) * | 2017-08-03 | 2017-10-20 | 中国铁道科学研究院铁道建筑研究所 | Refoot the fixed track usage plan device of operation for tunnel |
| CN107489100A (en) * | 2017-08-03 | 2017-12-19 | 中铁上海工程局集团有限公司 | A kind of long sleeper rail of girder steel open bridge floors synthetic resin and its construction method |
| CN108239896A (en) * | 2018-03-21 | 2018-07-03 | 中铁二十三局集团第四工程有限公司 | Existing railway Disease Treatment of Foundation Base fixed track usage plan constructing structure and construction method |
| CN109183530B (en) * | 2018-09-29 | 2024-03-12 | 中国铁道科学研究院集团有限公司铁道建筑研究所 | Line temporary overhead device and method for ballastless track disease remediation |
| CN111705567B (en) * | 2020-06-30 | 2022-04-15 | 汪美霞 | Urban rail transit line track laying and installing method |
| CN112832188B (en) * | 2021-01-07 | 2022-12-09 | 郑州铁路职业技术学院 | Railway track cleaning device |
| CN114606809A (en) * | 2022-03-05 | 2022-06-10 | 山东鲁道建设工程有限公司 | Construction temporary beam for replacing railway track under non-stop condition and construction method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1216764A (en) * | 1985-04-02 | 1987-01-20 | Jeff Roberts | Aligning rail ends for welding |
| DE10353213B3 (en) * | 2003-11-13 | 2005-10-20 | Db Netz Ag | Process to change individual or yoked sleepers in railroad bridge construction involves pre-prepared sleepers with rails attached being put in place on girder chord of bridge |
| CN204080554U (en) * | 2014-09-29 | 2015-01-07 | 杭州地方铁路开发有限公司 | D type is beam adjusting insulation fastener system just |
| CN106049209A (en) * | 2016-07-28 | 2016-10-26 | 中铁第四勘察设计院集团有限公司 | Temporary steel rail supporting device for disassembling and replacing railway ballastless track supporting layers |
| CN206289476U (en) * | 2016-12-20 | 2017-06-30 | 中国神华能源股份有限公司 | The construction beam of railroad track is changed under the conditions of for not stopping transport |
-
2016
- 2016-12-20 CN CN201611186826.7A patent/CN106758590B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1216764A (en) * | 1985-04-02 | 1987-01-20 | Jeff Roberts | Aligning rail ends for welding |
| DE10353213B3 (en) * | 2003-11-13 | 2005-10-20 | Db Netz Ag | Process to change individual or yoked sleepers in railroad bridge construction involves pre-prepared sleepers with rails attached being put in place on girder chord of bridge |
| CN204080554U (en) * | 2014-09-29 | 2015-01-07 | 杭州地方铁路开发有限公司 | D type is beam adjusting insulation fastener system just |
| CN106049209A (en) * | 2016-07-28 | 2016-10-26 | 中铁第四勘察设计院集团有限公司 | Temporary steel rail supporting device for disassembling and replacing railway ballastless track supporting layers |
| CN206289476U (en) * | 2016-12-20 | 2017-06-30 | 中国神华能源股份有限公司 | The construction beam of railroad track is changed under the conditions of for not stopping transport |
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