CN111074703B - Maintenance method for uneven settlement of roadbed of embedded track steel groove type ballast bed - Google Patents
Maintenance method for uneven settlement of roadbed of embedded track steel groove type ballast bed Download PDFInfo
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- CN111074703B CN111074703B CN202010016362.5A CN202010016362A CN111074703B CN 111074703 B CN111074703 B CN 111074703B CN 202010016362 A CN202010016362 A CN 202010016362A CN 111074703 B CN111074703 B CN 111074703B
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- steel
- steel groove
- ballast bed
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- tank
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 127
- 239000010959 steel Substances 0.000 title claims abstract description 127
- 238000000034 method Methods 0.000 title claims abstract description 37
- 238000012423 maintenance Methods 0.000 title claims abstract description 22
- 239000000463 material Substances 0.000 claims abstract description 37
- 239000004567 concrete Substances 0.000 claims abstract description 14
- 238000010276 construction Methods 0.000 claims abstract description 9
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims abstract description 8
- 238000004140 cleaning Methods 0.000 claims abstract description 7
- 238000005520 cutting process Methods 0.000 claims abstract description 3
- 238000009415 formwork Methods 0.000 claims description 6
- 239000004570 mortar (masonry) Substances 0.000 claims description 6
- 239000002861 polymer material Substances 0.000 claims description 6
- 239000002699 waste material Substances 0.000 claims description 6
- 238000003466 welding Methods 0.000 claims description 5
- 239000004677 Nylon Substances 0.000 claims description 3
- 239000011152 fibreglass Substances 0.000 claims description 3
- 238000005259 measurement Methods 0.000 claims description 3
- 229920001778 nylon Polymers 0.000 claims description 3
- 238000002360 preparation method Methods 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 230000009191 jumping Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Classifications
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B37/00—Making, maintaining, renewing, or taking-up the ballastway or the track, not provided for in a single one of groups E01B27/00 - E01B35/00
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Machines For Laying And Maintaining Railways (AREA)
- Road Paving Structures (AREA)
Abstract
The invention discloses a maintenance method for uneven settlement of an embedded track steel groove type ballast bed subgrade, which comprises the following steps: the method comprises the following steps: preparing; step two: cleaning pavement; step three: chiseling concrete ballast beds on two sides of the steel groove; step four: fine adjustment of a steel groove: cutting the ballast bed steel bars connected with the steel groove, and lifting the steel groove by adopting a steel groove connecting device, a reaction frame and a jack; the height adjusting cushion block is placed at the bottom of the steel tank and the steel tank adjusting tool, so that the geometric shape and position of the steel tank are adjusted; step five: fixing a steel groove: implanting reinforcing steel bars into the ballast beds on the two sides of the steel tank at intervals longitudinally, and fixing the implanted reinforcing steel bars and the steel tank; step six: pouring a filling material; step seven: and recovering pavement paving. The invention realizes the precision restoration of the steel rail by finely adjusting the steel groove, has large adjustment amount and small operation difficulty, reduces the damage to the ballast bed to the maximum extent, greatly reduces the maintenance work amount and shortens the maintenance period. The method is also suitable for the reconstruction construction of the embedded track on the existing line.
Description
Technical Field
The invention relates to a maintenance method for uneven settlement of an embedded track steel groove type ballast bed subgrade, and belongs to the technical field of track traffic.
Background
The uneven settlement of the roadbed is a common disease and is often found in ground lines of municipal traffic and rail transit. The reason for the uneven settlement of the roadbed is more, such as the erosion of underground water and the loss of roadbed sandy soil; due to insufficient construction backfill and compaction; due to the damage and the failure of the underpass pipeline; due to road surface load overrun and the like. The uneven settlement of the roadbed in the rail running area can influence the precision of the rail and reduce the riding comfort, and in severe cases, the side turning, the car jumping and the like of the train can be caused, so that great potential safety hazards exist. In the line operation stage, after the subgrade is unevenly settled, the common maintenance methods for the track major are adjusting steel rails, grouting a track bed and re-paving the track bed. The scheme for adjusting the steel rail has strong operability, but the adjustment amount is limited. The ballast bed grouting method is only applicable to ballast bed structures provided with isolation layers. The paving of the road bed is time-consuming and labor-consuming, and causes the line to be stopped.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: aiming at the existing problems, the maintenance method for the uneven settlement of the roadbed of the embedded track steel groove type ballast bed is provided, and the steel rail precision restoration is realized by finely adjusting the steel groove.
The technical scheme adopted by the invention is as follows:
a maintenance method for uneven settlement of an embedded track steel groove type ballast bed subgrade comprises the following steps:
the method comprises the following steps: preparation work:
marking a maintenance area by marking lines by adopting a conventional measurement lofting method, and installing a fence along the maintenance area;
step two: cleaning pavement:
cleaning pavement and conveying construction waste to off-site treatment;
step three: chiseling part of the concrete ballast bed:
chiseling concrete ballast beds on two sides of the steel groove; when chiseling, reserving a fine adjustment steel groove and a fixed steel groove to form an operation space; and transporting the construction waste to off-site disposal;
step four: fine adjustment of a steel groove:
cutting a ballast bed reinforcing steel bar connected with the steel groove, and removing the constraint of the ballast bed on the steel groove; then calculating the lifting amount of the steel tank point by point and marking, and lifting the steel tank by adopting a steel tank connecting device, a reaction frame and a jack; the height adjusting cushion block is placed at the bottom of the steel tank and the steel tank adjusting tool, so that the geometric shape and position of the steel tank are adjusted;
step five: fixing a steel groove:
implanting reinforcing steel bars into the ballast beds on the two sides of the steel tank at intervals longitudinally, and fixing the implanted reinforcing steel bars and the steel tank;
step six: pouring a filling material:
erecting a formwork along the contour of the ballast bed on two sides of the steel groove, and pouring a filling material;
step seven: and (3) recovering pavement:
and after the filling material is cured and the formwork is removed, the original pavement is restored.
In one embodiment, the steel channel in the embedded track steel channel type ballast bed is made of steel, glass fiber reinforced plastic or nylon, and the material is selected according to material strength and technological properties.
In one embodiment, in step four, the steel slot connecting device is selected according to the connecting mode and comprises a steel wire rope sleeve lock or a steel bar welding connection.
In one embodiment, in the fourth step, the height-adjusting cushion block is selected according to the material and the shape, and comprises a steel sheet, a steel block, a concrete block, a mortar block or a high polymer material.
In one embodiment, in step five, the method for fixing the steel groove can be replaced by the following method: the steel bars are welded by lapping the steel bars of the existing ballast bed and the steel grooves.
In one embodiment, in step six, the material of the filling material is selected according to the material strength and the process performance, and the method includes: mortar, concrete or polymer materials.
In one embodiment, in step six, the filling material is poured by starting from the same side and pouring the filling material in one piece after the filling material flows to the other side.
In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that:
the invention realizes the precision restoration of the steel rail by finely adjusting the steel groove, has large adjustment amount and small operation difficulty, reduces the damage to the ballast bed to the maximum extent, greatly reduces the maintenance work amount and shortens the maintenance period. Meanwhile, the integrity of the structure in the groove is ensured, and the performance index and the operation quality of the circuit are ensured. The method is also suitable for the reconstruction construction of the embedded track on the existing line.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a block flow diagram of a maintenance method for uneven settlement of an embedded track steel trough type ballast bed subgrade according to an embodiment of the invention.
Fig. 2 is a schematic view of the structure of an embedded track steel channel bed.
Fig. 3 is a schematic diagram of removing ballast bed concrete on both sides of the steel channel by chiseling in step three according to the embodiment of the present invention.
FIG. 4 is a schematic view of the fourth step of the method of the present invention for removing the steel bath from the ballast bed.
Fig. 5 is a schematic view of a steel groove for fixing a steel bar in step five of the embodiment of the invention.
Fig. 6 is a schematic view of a pouring filler material in step six according to the embodiment of the present invention.
The labels in the figure are: 1-in-groove structure; 2-steel rail; 3-a steel groove; 4, paving the pavement; 5-a track bed; 6-existing ballast bed steel bars; 7-implanting steel bars; 8-welding points of the implanted steel bars and the steel grooves; 9-schematic drawing of pouring filling material.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the detailed description and specific examples, while indicating the preferred embodiment of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.
The features and properties of the present invention are described in further detail below with reference to examples.
As shown in fig. 1, the maintenance method for uneven settlement of a roadbed of an embedded track steel trough type ballast bed provided by the embodiment is provided, wherein the structure of the embedded track steel trough type ballast bed is shown in fig. 2;
the method comprises the following steps:
the method comprises the following steps: preparation work:
marking a maintenance area by marking lines by adopting a conventional measurement lofting method, and installing a fence along the maintenance area;
step two: cleaning pavement:
cleaning pavement and conveying construction waste to off-site treatment;
step three: chiseling part of the concrete ballast bed:
as shown in fig. 3, removing concrete ballast beds on both sides of the steel channel; when chiseling, reserving a fine adjustment steel groove and a fixed steel groove to form an operation space; and transporting the construction waste to off-site disposal;
step four: fine adjustment of a steel groove:
as shown in fig. 4, the bed steel bars connected with the steel groove are cut to remove the restriction of the bed to the steel groove; then calculating the lifting amount of the steel tank point by point and marking, and lifting the steel tank by adopting a steel tank connecting device, a reaction frame and a jack; the height adjusting cushion block is placed at the bottom of the steel tank and the steel tank adjusting tool, so that the geometric shape and position of the steel tank are adjusted;
step five: fixing a steel groove:
as shown in fig. 5, reinforcing steel bars are implanted into the ballast beds on the two sides of the steel tank at intervals in the longitudinal direction, and the implanted reinforcing steel bars and the steel tank are fixed;
step six: pouring a filling material:
as shown in fig. 6, formwork is erected on two sides of the steel channel along the contour of the ballast bed, and filling materials are poured;
step seven: and (3) recovering pavement:
and after the filling material is cured and the formwork is removed, the original pavement is restored.
In one embodiment, the steel channel in the embedded track steel channel type ballast bed is made of steel, glass fiber reinforced plastic or nylon, and the material is selected according to material strength and technological properties.
In one embodiment, in step four, the steel slot connecting device is selected according to the connecting mode and comprises a steel wire rope sleeve lock or a steel bar welding connection.
In one embodiment, in the fourth step, the height-adjusting cushion block is selected according to the material and the shape, and comprises a steel sheet, a steel block, a concrete block, a mortar block or a high polymer material.
In one embodiment, in step five, the method for fixing the steel groove can be replaced by the following method: the steel bars are welded by lapping the steel bars of the existing ballast bed and the steel grooves.
In one embodiment, in step six, the material of the filling material is selected according to the material strength and the process performance, and the method includes: mortar, concrete or polymer materials.
In one embodiment, in step six, the filling material is poured by starting from the same side and pouring the filling material in one piece after the filling material flows to the other side.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (6)
1. A maintenance method for uneven settlement of an embedded track steel groove type ballast bed subgrade is characterized by comprising the following steps:
the method comprises the following steps: preparation work:
marking a maintenance area by marking lines by adopting a conventional measurement lofting method, and installing a fence along the maintenance area;
step two: cleaning pavement:
cleaning pavement and conveying construction waste to off-site treatment;
step three: chiseling part of the concrete ballast bed:
chiseling concrete ballast beds on two sides of the steel groove; when chiseling, reserving a fine adjustment steel groove and a fixed steel groove to form an operation space; and transporting the construction waste to off-site disposal;
step four: fine adjustment of a steel groove:
cutting a ballast bed reinforcing steel bar connected with the steel groove, and removing the constraint of the ballast bed on the steel groove; then calculating the lifting amount of the steel tank point by point and marking, and lifting the steel tank by adopting a steel tank connecting device, a reaction frame and a jack; the height adjusting cushion block is placed at the bottom of the steel tank and the steel tank adjusting tool, so that the geometric shape and position of the steel tank are adjusted;
step five: fixing a steel groove:
the existing ballast bed steel bars and steel grooves are used for lap welding steel bars;
step six: pouring a filling material:
erecting a formwork along the contour of the ballast bed on two sides of the steel groove, and pouring a filling material;
step seven: and (3) recovering pavement:
and after the filling material is cured and the formwork is removed, the original pavement is restored.
2. The method of claim 1, wherein the steel channel in the steel channel bed is selected from steel, glass fiber reinforced plastic or nylon according to material strength and processing performance.
3. The method for repairing the uneven settlement of the roadbed of the embedded track steel groove type track according to claim 1, wherein in the fourth step, the steel groove connecting device is selected according to a connecting mode and comprises a steel wire rope sleeve lock or a steel bar welding connection.
4. The maintenance method for the uneven settlement of the roadbed of the embedded track steel groove type track bed as claimed in claim 1, wherein in the fourth step, the height-adjusting cushion blocks are selected according to materials and shapes, and comprise steel sheets, steel blocks, concrete blocks, mortar blocks or high polymer materials.
5. The maintenance method for uneven settlement of the roadbed of the embedded track steel groove type track bed as claimed in claim 1, wherein in the sixth step, the material of the filling material is selected according to the material strength and the process performance, and the method comprises the following steps: mortar, concrete or polymer materials.
6. The method for repairing the uneven settlement of the roadbed of the embedded track steel groove type ballast bed as claimed in claim 1, wherein in the sixth step, the filling material is poured, starting from the same side, and the filling material is poured in a whole body after flowing to the other side.
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| CN202010016362.5A CN111074703B (en) | 2020-01-08 | 2020-01-08 | Maintenance method for uneven settlement of roadbed of embedded track steel groove type ballast bed |
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| CN202010016362.5A CN111074703B (en) | 2020-01-08 | 2020-01-08 | Maintenance method for uneven settlement of roadbed of embedded track steel groove type ballast bed |
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| CN111074703B true CN111074703B (en) | 2021-08-17 |
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| CN111663385A (en) * | 2020-06-24 | 2020-09-15 | 中铁二院工程集团有限责任公司 | Construction method for completing rapid restoration of settlement of integral ballast bed in skylight period |
| CN112458802A (en) * | 2020-12-01 | 2021-03-09 | 通号建设集团有限公司 | Track and method suitable for treating uneven settlement of track |
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