CN118498135A - General type integral ballast bed ditch center template and construction method thereof - Google Patents
General type integral ballast bed ditch center template and construction method thereof Download PDFInfo
- Publication number
- CN118498135A CN118498135A CN202410660880.9A CN202410660880A CN118498135A CN 118498135 A CN118498135 A CN 118498135A CN 202410660880 A CN202410660880 A CN 202410660880A CN 118498135 A CN118498135 A CN 118498135A
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- Prior art keywords
- supporting leg
- template
- ditch
- gasket
- ballast bed
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- 238000010276 construction Methods 0.000 title claims abstract description 12
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 18
- 239000010959 steel Substances 0.000 claims abstract description 18
- 238000000034 method Methods 0.000 claims description 6
- 238000009415 formwork Methods 0.000 claims description 5
- 230000000903 blocking effect Effects 0.000 claims description 3
- 230000003014 reinforcing effect Effects 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 238000011089 mechanical engineering Methods 0.000 abstract description 2
- 125000006850 spacer group Chemical group 0.000 description 8
- 238000010586 diagram Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 230000007704 transition Effects 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 241001669679 Eleotris Species 0.000 description 2
- 238000013016 damping Methods 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- 229910052729 chemical element Inorganic materials 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 230000005641 tunneling Effects 0.000 description 1
Classifications
-
- 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
- E01B29/005—Making of concrete parts of the track in situ
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B1/00—Ballastway; Other means for supporting the sleepers or the track; Drainage of the ballastway
- E01B1/008—Drainage of track
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G15/00—Forms or shutterings for making openings, cavities, slits, or channels
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/60—Planning or developing urban green infrastructure
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Sewage (AREA)
Abstract
The invention relates to the field of mechanical engineering, in particular to a general type integral ballast bed ditch center template and a construction method thereof, wherein the general type integral ballast bed ditch center template comprises a lifting device, a supporting device and a ditch template, the ditch template is connected with the lifting device through the supporting device, the lifting device comprises a cross beam, two ends of the cross beam are matched with the shape of a rail bottom of a steel rail, a rectangular through hole is formed in the bottom of the cross beam, and a plurality of strip-shaped grooves are formed in one side or two side edges of the rectangular through hole; the supporting device comprises an upper supporting leg and a lower supporting leg, the upper supporting leg and the lower supporting leg are L-shaped, a plurality of pin holes are formed in two side surfaces of the upper supporting leg and the lower supporting leg and are used for inserting pins, the upper supporting leg and the lower supporting leg are connected, the lower supporting leg is connected with a drainage ditch template, and the top of the upper supporting leg is connected with a positioning gasket. The invention has the advantages that: the cross beam can be correspondingly adjusted according to the width of the drainage ditch template, and is suitable for hoisting the drainage ditch templates of different types; the positioning gasket is used for accurately positioning the width of the drainage ditch template and limiting the movement of the supporting device in the horizontal and vertical directions.
Description
Technical Field
The invention relates to the field of mechanical engineering, in particular to a general type integral ballast bed ditch center template and a construction method thereof.
Background
In recent years, along with the continuous development of railway traffic, the whole ballast bed is paved more and more, and the whole ballast bed has the advantages of providing a stable supporting substrate for the running of railway vehicles and guaranteeing the running safety of the vehicles.
However, the whole ballast bed pouring process has more problems, the structure of the drainage ditch needs to be considered during pouring, the drainage ditch is very important in a tunnel, and the main functions are drainage, garbage cleaning and the like. If accumulated water, water collection or other sewage in the tunnel cannot be timely discharged from the tunnel, some chemical elements contained in the tunnel can corrode a ballast bed, a damping rubber pad and other parts which are easy to corrode, such as a vibration isolator is corroded to lose damping effect, driving safety accidents are easy to be caused, or rainwater overflows more through the track, so that great potential safety hazards can be brought to driving safety.
The ballast bed escape canal template in prior art includes two parts in the tunnel: the ditch template can use wooden templates, steel templates and the like, and the hoisting device is generally composed of a steel structure. The transition section is generally arranged in the ballast bed ditch construction process, and the size of the transition section ditch is different from that of a common ballast bed ditch, so that different types of lifting devices are required to be fixed for ditch templates with different sizes, and the problems of non-universality of the lifting devices, low construction efficiency, high labor cost and the like exist in the construction process.
Therefore, the design of the universal type integral ballast bed central ditch template is particularly important, and the universal type integral ballast bed central ditch template is applicable to the connection and transition of different types of drainage ditch templates, improves the construction efficiency and reduces the labor cost.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, and provides a general type integral ballast bed ditch center template and a construction method thereof, which are suitable for lifting different types of ditch templates, improve the working efficiency and the working precision and realize mechanized operation.
In order to achieve the above purpose, a general type integral ballast bed ditch center template is designed, which comprises a lifting device, a supporting device and a ditch template, wherein the ditch template is connected with the lifting device through the supporting device, the lifting device comprises a cross beam, two ends of the cross beam are matched with the rail bottoms of the steel rails in a shape and are used for being carried on two rows of steel rails of a track, a rectangular through hole is formed in the bottom of the cross beam and is used for providing a sliding channel for a positioning gasket, and a plurality of strip-shaped grooves are formed in one side or two side edges of the rectangular through hole and are used for positioning and connecting the positioning gasket; the supporting device comprises an upper supporting leg and a lower supporting leg, the upper supporting leg and the lower supporting leg are L-shaped, a plurality of pin holes are formed in two side faces of the upper supporting leg and the lower supporting leg and are used for inserting pins to connect the upper supporting leg and the lower supporting leg, the lower supporting leg is connected with a drainage ditch template, and the top of the upper supporting leg is connected with a positioning gasket.
Preferably, both ends of the beam are fixed on the steel rail by using clamping plates and bolts.
Preferably, the cross beam is of a rectangular channel steel structure with an opening at the upper part.
Preferably, the positioning gasket is a detachable positioning gasket, convex plates are arranged at the front end and the rear end of the positioning gasket and matched with strip-shaped grooves at the edges of the rectangular through holes, threaded holes for connecting the upper supporting legs are formed in the middle of the positioning gasket, and the strip-shaped grooves are arranged at the edges of the two sides of the rectangular through holes at equal intervals.
Preferably, the positioning gasket is a non-detachable positioning gasket, grooves are formed in the front end and the rear end of the positioning gasket and form sliding channels with rectangular through holes to be slidably connected, convex plates are arranged in the sliding channels to enable the positioning gasket to slide in the channels and limit the vertical movement of the positioning gasket, threaded holes for connecting upper supporting legs are formed in the middle of the positioning gasket, limiting grooves are formed in the upper surface of the positioning gasket, a plurality of limiting grooves are formed in the edges of two sides of the through holes of the cross beam at equal intervals, and the positioning gasket further comprises limiting clamping plates which are used for being clamped in the grooves of the positioning gasket and the cross beam to realize limiting locking of the positioning gasket.
Preferably, the pin of the present invention is 7-shaped, T-shaped or other bar-shaped structure.
The invention also provides a construction method adopting the general type integral ballast bed ditch center template, which comprises the following steps: s1, fixing a track at a central position in a tunnel by using a supporting device, and arranging a bundled reinforcing mesh at the bottom of the tunnel; s2, placing a drain ditch template at the central position of a track, placing cross beams, placing three to four cross beams on each section of steel rail, and fastening by using clamping plates; s3, placing the positioning gasket at a specified distance suitable for the width of the drainage ditch template, and then connecting the upper supporting leg with the cross beam by using a bolt; the lower support leg is connected with a rectangular hole on the drainage ditch template through a bolt, the height of the drainage ditch template is adjusted, and a pin rod is inserted into a pin hole of the upper support leg and a pin hole of the lower support leg to fasten a drainage ditch die; s4, injecting concrete into a base of the tunnel to perform ballast bed pouring, forming a rectangular groove-shaped drainage ditch at the center of the ballast bed due to the blocking effect of the drainage ditch template, and obtaining the drainage ditch with a certain inclination angle by adjusting the height of the supporting device so as to facilitate drainage of the tunnel; s5, during disassembly, firstly disassembling the fastening of the cross beam, then disassembling the connection of the cross beam and the upper supporting leg, pulling out the pin rod, then disassembling the connection of the lower supporting leg and the drainage ditch template, finally disassembling the drainage ditch template, completing the disassembly operation, and then replacing to the next operation position; s6, the operations of the S1-S5 are circulated.
Compared with the prior art, the invention has the advantages that:
1. the device designs a general type formwork lifting device, the profile modeling design at the two ends of the cross beam is matched with the rail bottom of the steel rail, a sliding channel is arranged in the cross beam, the width of the drainage ditch formwork can be correspondingly adjusted, and the device is suitable for lifting different types of drainage ditch formworks.
2. The device is provided with the positioning gasket which is mainly used for accurately positioning the width of the drainage ditch template, limiting the movement of the supporting device in the horizontal and vertical directions and increasing the overall stability of the central template.
3. The device is divided into an upper supporting leg and a lower supporting leg, so that the height of a drainage ditch template can be conveniently adjusted, and the drainage ditch can form a certain inclination angle, so that rainwater ponding, water collection or other sewage can be conveniently discharged.
Drawings
FIG. 1 is a general working schematic diagram of a general type integral ballast bed ditch center template; FIG. 2 is a schematic diagram of a general hoisting device connection; FIG. 3 is a perspective view of a general hoisting device; FIG. 4 is a top view of a general hoisting device; FIG. 5 is a front view of a general hoisting device; FIG. 6 is a side view of a general lifting device; FIG. 7 is a schematic view of a beam structure; FIG. 8 is a top view of a cross beam; FIG. 9 is a top plan view of the bottom surface of the beam; FIG. 10 is a front view of a beam; FIG. 11 is a side view of a beam; FIG. 12 is a schematic view of the internal structure of the support device; FIG. 13 is a schematic view of the external connection of the support device; FIG. 14 is a perspective view of an upper leg; FIG. 15 is a side view of the upper leg; FIG. 16 is a front view of a leg; FIG. 17 is a top view of a leg; FIG. 18 is a perspective view of a spacer; FIG. 19 is a top view of a spacer; FIG. 20 is a front view of a spacer; FIG. 21 is a schematic diagram of a spacer installation; FIG. 22 is a schematic view of the inclination of the gutter plate; FIG. 23 is a cross beam and rail connection structure intent; FIG. 24 is a schematic drawing of a drainage ditch formwork release; FIG. 25 is a schematic view of an improved spacer mounting; FIG. 26 is a perspective view of a modified spacer; FIG. 27 is a top view of a modified spacer; FIG. 28 is a front view of a modified spacer shim; FIG. 29 is a top view of a stationary hoist; FIG. 30 is a front view of a stationary hoist; FIG. 31 is a schematic view of a stationary hoist;
In the figure: 1, tunneling; 1.1 A ballast bed; 2 steel rails; 3, hoisting the device; 3.1 a cross beam; 3.2 splints; 3.3 a slip path; 3.4 bolt holes; 3.5 Positioning a gasket; 3.6 convex plates; 4 supporting devices; 4.1 upper support legs; 4.2 lower support legs; 4.3 pin bars; 4.4, upper pin holes; 4.5 An upper bolt hole; 4.6 lower bolt holes; 4.7 lower pin holes; 5 gutter templates.
Detailed Description
The invention will be further illustrated with reference to specific examples.
Embodiment one: the utility model provides a general type integral ballast bed ditch center template's structure is constituteed, mainly includes hoist device 3, strutting arrangement 4 two parts, still includes tunnel 1, floating slab steel construction net, escape canal template 5.
The hoisting device 3 comprises a cross beam 3.1, clamping plates 3.2, a sliding channel 3.3, bolt holes 3.4 and positioning gaskets 3.5.
The support device 4 comprises an upper supporting leg 4.1, a lower supporting leg 4.2, a pin 4.3, an upper pin hole 4.4, an upper bolt hole 4.5, a lower bolt hole 4.6 and a lower pin hole 4.7.
As shown in fig. 10, the cross beam 3.1 is of a non-cover rectangular channel steel structure, convex plates are arranged at the upper parts of two ends of the cross beam 3.1, the lower parts are cut out to be suitable for the edges of the bottoms of the steel rails, and bolt holes 3.4 are formed in the bottom plates of the two ends of the cross beam 3.1; as shown in fig. 23, the clamping plates 3.2 are placed at the bottoms of the two ends of the cross beam 3.1, and the cross beam 3.1 is connected with the steel rail through bolts.
As shown in fig. 7, a sliding channel 3.3 is arranged on the bottom plate in the middle of the cross beam 3.1, the sliding channel 3.3 is of a rectangular structure, a concave groove is formed in the edge of the sliding channel 3.3 and penetrates through the bottom plate of the cross beam 3.1, a positioning gasket 3.5 is mainly embedded in the sliding channel 3.3, one type of the positioning gasket is a detachable gasket, and as shown in fig. 18, convex plates are arranged at two ends of the positioning gasket 3.5 and are matched with the concave groove formed in the edge of the sliding channel 3.3; the novel horizontal sliding channel has the advantages that the position of the concave groove of the sliding channel 3.3 is determined in advance, the gasket is directly clamped into the concave groove, the horizontal movement of the bolt is limited, the bolt is accurately positioned, the drainage ditch templates 5 with different standards can be hoisted, for example, the width is 400mm or 600mm or other sizes, and the common drainage ditch templates 5 can be suitable for different templates only by adjusting the position of the gasket.
The supporting device 4 is connected with the lifting device 3 through bolts and positioning gaskets 3.5, as shown in fig. 6, the upper supporting leg 4.1 is in contact connection with the lower supporting leg 4.2, and is fastened through the pin rod 4.3 to limit free movement of the upper supporting leg; the upper and lower support legs are basically the same, the lower support leg 4.2 is slightly larger than the upper support leg 4.1, and the side surfaces of the upper and lower support legs are provided with a plurality of pin holes which are mainly used for adjusting the height of the support leg and stabilizing the support leg structure; the upper and lower support legs are of L-shaped structures, a rectangular thin plate is arranged at the bottom (upper part) and fixedly connected with the side L-shaped plate, and a bolt hole is formed in the center of the rectangular thin plate; the upper support leg 4.1 is connected with the positioning gasket 3.5 through a bolt, and the lower support leg 4.2 is connected with the drainage ditch template 5 through a bolt.
The landing leg is established to L template to be equipped with the several pinhole in both sides limit, in the pin 4.3 horizontal insertion L board both sides pinhole, the design of L template can save material cost, and the stability of strutting arrangement 4 also can be strengthened in the insertion of pin 4.3.
Preferably, the pin 4.3 may be of a 7-type, a T-type, or other bar-like structure, with the head portion slightly protruding, or with the protruding portion being insertable into the pin hole, so that the pin is more stably inserted into the leg.
Embodiment two: based on the technical solution of the first embodiment, preferably, the other is that the non-detachable gasket is as shown in fig. 26, the two ends of the positioning gasket 3.5 are provided with grooves adapted to the improved sliding channel 3.3, the improved sliding channel 3.3 is provided with a convex plate in the channel for sliding the positioning gasket 3.5 in the channel and limiting the movement of the positioning gasket 3.5 in the vertical direction, and the positioning gasket has the advantages that the scale of the sliding channel 3.3 is more accurate, and the positioning gasket 3.5 can be applied to the drainage ditch template 4 with a larger range and more irregularities.
Embodiment III: a method for using a universal type integral ballast bed ditch central template.
First, the track 2 is fixed at a central position in the tunnel 1 using an existing supporting device, and a bundled reinforcing mesh is provided at the bottom of the tunnel 1.
Secondly, a drainage ditch template 5 is placed at the center of the track 2, the cross beams 3.1 are placed, three to four cross beams 3.1 are placed on each section of steel rail, and the clamping plates 3.2 are used for fastening.
Secondly, placing the positioning gasket 3.5 at a specified position, namely a distance suitable for the width of the drainage ditch template 5, and then connecting the upper supporting leg 4.1 with the cross beam 3.1 by using bolts; the lower supporting leg 4.2 is connected with rectangular holes on the drainage ditch template 5 through bolts, the height of the drainage ditch template 5 is adjusted, and the pin rod 4.3 is inserted into pin holes of the upper supporting leg and the lower supporting leg to fasten the drainage ditch die.
Finally, concrete is injected into the base of the tunnel 1 to pour the ballast bed, and a rectangular groove-shaped drainage ditch is formed in the center of the ballast bed 1.1 due to the blocking effect of the drainage ditch template 5, and the drainage ditch with a certain inclination angle can be obtained by adjusting the height of the supporting device, so that the drainage of the tunnel is facilitated.
During disassembly, the fastening of the disassembly cross beam 3.1 is firstly disassembled, then the connection of the cross beam 3.1 and the upper supporting leg (4.1) is disassembled, the pin rod 4.3 is pulled out, then the connection of the lower supporting leg 4.2 and the drainage ditch template 5 is disassembled, finally the drainage ditch template 5 is disassembled, the disassembly operation is completed, and then the next operation position is replaced.
Embodiment four:
As shown in fig. 29 to 31, this embodiment is a simple embodiment, and only lifts two kinds of gutter templates with fixed distances, one is that the width of the short sleeper gutter is 400mm, and the other is that the width of the trapezoid sleeper is 600mm, and its advantages are that: only four fixed bolt holes are arranged at the middle position of the cross beam, two inner drain templates corresponding to 400mm are arranged, two outer drain templates corresponding to 600mm are arranged at the lower part of the cross beam, and the adjustable support legs are consistent with the support leg arrangement in the embodiment. The method has the advantages of simple and convenient design, no need of moving an adjusting positioning gasket, only need of selecting a proper bolt hole for installation, and the installation steps are the same as those of the embodiment.
The above description is only specific to the embodiments of the invention, but the scope of the invention is not limited thereto, and any person skilled in the art who is skilled in the art to which the invention pertains shall apply to the technical solution and the novel concept according to the invention, and shall all be covered by the scope of the invention.
Claims (7)
1. The utility model provides a general type integral ballast bed ditch center template, which comprises a hoisting device, a supporting device and a ditch template, and is characterized in that the ditch template is connected with the hoisting device through the supporting device,
The hoisting device comprises a cross beam, two ends of the cross beam are matched with rail bottoms of the steel rails in a shape and are used for being carried on two rows of steel rails of a track, a rectangular through hole is formed in the bottom of the cross beam and is used for providing a sliding channel for a positioning gasket, and a plurality of strip-shaped grooves are formed in one side or two side edges of the rectangular through hole and are used for positioning and connecting the positioning gasket;
The supporting device comprises an upper supporting leg and a lower supporting leg, the upper supporting leg and the lower supporting leg are L-shaped, a plurality of pin holes are formed in two side faces of the upper supporting leg and the lower supporting leg and are used for inserting pins to connect the upper supporting leg and the lower supporting leg, the lower supporting leg is connected with a drainage ditch template, and the top of the upper supporting leg is connected with a positioning gasket.
2. A universal integrated ballast bed ditch center form according to claim 1, wherein said cross members are secured to the rails at both ends using clamps and bolts.
3. A universal integrated ballast bed ditch center form according to claim 1, wherein said cross members are rectangular open-top channel structures.
4. The universal type integral ballast bed ditch central template according to claim 1, wherein the positioning gasket is a detachable positioning gasket, convex plates are arranged at the front end and the rear end of the positioning gasket and matched with strip-shaped grooves at the edges of the rectangular through holes, threaded holes for connecting the upper supporting legs are formed in the middle of the positioning gasket, and the strip-shaped grooves are arranged at the edges of the two sides of the rectangular through holes at equal intervals.
5. The utility model provides a general whole railway roadbed ditch center template of claim 1, characterized in that the location gasket is the detachable location gasket, and both ends are equipped with recess and rectangle through-hole formation slip passageway sliding connection around the location gasket, are equipped with the flange in the slip passageway and supply the location gasket to slide in the passageway to restrict the vertical direction's of location gasket removal, the middle part of location gasket is equipped with the screw hole that is used for connecting the landing leg, location gasket upper surface is provided with spacing recess, the through-hole both sides edge equidistance of crossbeam is provided with a plurality of spacing recesses, still includes spacing cardboard, spacing cardboard is used for the card to establish in the recess of location gasket and crossbeam realizes the spacing locking of location gasket.
6. A universal integrated ballast bed ditch center form according to claim 1, wherein the pins are 7-shaped or T-shaped or other bar-like structures.
7. A construction method using the general type integral ballast bed ditch center formwork as claimed in any one of claims 1 to 6, characterized in that the method comprises the following steps:
S1, fixing a track at a central position in a tunnel by using a supporting device, and arranging a bundled reinforcing mesh at the bottom of the tunnel;
s2, placing a drain ditch template at the central position of a track, placing cross beams, placing three to four cross beams on each section of steel rail, and fastening by using clamping plates;
s3, placing the positioning gasket at a specified distance suitable for the width of the drainage ditch template, and then connecting the upper supporting leg with the cross beam by using a bolt; the lower support leg is connected with a rectangular hole on the drainage ditch template through a bolt, the height of the drainage ditch template is adjusted, and a pin rod is inserted into a pin hole of the upper support leg and a pin hole of the lower support leg to fasten a drainage ditch die;
S4, injecting concrete into a base of the tunnel to perform ballast bed pouring, forming a rectangular groove-shaped drainage ditch at the center of the ballast bed due to the blocking effect of the drainage ditch template, and obtaining the drainage ditch with a certain inclination angle by adjusting the height of the supporting device so as to facilitate drainage of the tunnel;
s5, during disassembly, firstly disassembling the fastening of the cross beam, then disassembling the connection of the cross beam and the upper supporting leg, pulling out the pin rod, then disassembling the connection of the lower supporting leg and the drainage ditch template, finally disassembling the drainage ditch template, completing the disassembly operation, and then replacing to the next operation position;
S6, the operations of the S1-S5 are circulated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410660880.9A CN118498135A (en) | 2024-05-27 | 2024-05-27 | General type integral ballast bed ditch center template and construction method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410660880.9A CN118498135A (en) | 2024-05-27 | 2024-05-27 | General type integral ballast bed ditch center template and construction method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN118498135A true CN118498135A (en) | 2024-08-16 |
Family
ID=92236342
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410660880.9A Pending CN118498135A (en) | 2024-05-27 | 2024-05-27 | General type integral ballast bed ditch center template and construction method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN118498135A (en) |
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2024
- 2024-05-27 CN CN202410660880.9A patent/CN118498135A/en active Pending
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