CN211471995U - Automatic fine adjustment system for open bridge deck sleeper plate type track structure on steel truss girder - Google Patents
Automatic fine adjustment system for open bridge deck sleeper plate type track structure on steel truss girder Download PDFInfo
- Publication number
- CN211471995U CN211471995U CN201921519922.8U CN201921519922U CN211471995U CN 211471995 U CN211471995 U CN 211471995U CN 201921519922 U CN201921519922 U CN 201921519922U CN 211471995 U CN211471995 U CN 211471995U
- Authority
- CN
- China
- Prior art keywords
- sleeper
- jack
- steel truss
- track structure
- track
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Bridges Or Land Bridges (AREA)
Abstract
The utility model discloses an automatic fine-tuning system of open bridge floor sleeper plate-type track structure on steel longeron, its characterized in that: comprises a track geometric state detector (1), a three-way jack (7) and a jack control system (8); the track geometric state detector (1) is arranged on a steel rail (2) and used for measuring a rough-paved track structure and acquiring geometric form and position information of the track structure; a plurality of three-way jacks (7) are arranged between the sleeper plate (4) and the steel truss girder sidewalk (6), and the geometric positions of the sleeper plate (4) are finely adjusted in the vertical, longitudinal and transverse directions of the rail under the synchronous actuation of the jack control system (8). The utility model discloses can solve on the current steel longeron sleeper slab fine tuning inefficiency, adjustment volume are little, the big scheduling problem of work load.
Description
Technical Field
The utility model belongs to the accurate construction field of track, concretely relates to automatic accurate adjustment system of bright bridge floor sleeper plate track structure on steel longeron.
Background
The long-span steel truss structure is a structural form commonly adopted by modern railway bridges, has the outstanding advantages of simple structure, convenient construction, strong bearing capacity and the like, and is widely applied to construction of ordinary speed railways, high-speed railways and intercity railways. At present, common rail structures of railway steel trusses at home and abroad comprise a wooden sleeper open-deck rail, a ballast rail, a synthetic resin sleeper rail, a sleeper slab structure rail and the like.
The open bridge deck track of the wood sleeper laid on the traditional steel truss girder is limited by the easy decay, mechanical abrasion and cracking of the wood sleeper, and the service life of the structure is short; the bridge deck system with the ballast track is not easy to inspect and maintain and has larger self weight; the synthetic resin sleeper has too high cost and is not suitable for large-scale laying application; the sleeper plate structure track can improve track structure stability and durability, reduce maintenance work load, reduce the height of building on the track and the second-phase dead load of the bridge simultaneously, and reduce the construction cost of the main bridge.
The sleeper slab structure track on the steel truss girder comprises steel rails, fasteners, sleeper slabs, concrete cushions, high-strength connecting bolts, main longitudinal girders of the steel truss girder and other accessories, wherein the sleeper slabs are fixedly connected with the main longitudinal girders of the steel truss girder through the high-strength bolts, and the concrete cushions are poured between the sleeper slabs and the main longitudinal girders of the steel truss girder. Most of the existing track fine adjustment systems are designed for ballastless tracks and ballasted tracks, and the fine adjustment method for the open bridge deck sleeper plate structure track on the steel truss girder is less. The sleeper slab structure track of laying on the steel truss, behind the concrete cushion that pours into, the track structure fine tuning mainly relies on the fastener system, and this kind of track fine tuning mode adjustment volume is little, work load is big, inefficiency.
SUMMERY OF THE UTILITY MODEL
At least one in defect or improvement demand more than prior art, the utility model provides an automatic fine-tuning system of open bridge floor sleeper plate formula track structure on steel longeron can solve the current steel longeron and go up the sleeper plate fine-tuning inefficiency, adjustment volume is little, the big scheduling problem of work load. The track geometric state detector is used for acquiring the geometric state of the track structure and determining the adjustment amount of the sleeper plate to be adjusted, the adjustment amount information is transmitted to the jack control system through communication systems such as Bluetooth, the jack control system drives the three-way jack in real time to accurately adjust the geometric shape and position of the sleeper plate, automatic fine adjustment of the sleeper plate track structure on the steel truss girder is achieved, and the operation efficiency is greatly improved.
In order to achieve the above object, according to an aspect of the present invention, there is provided an automatic fine tuning system for a slab track structure of an open bridge deck sleeper on a steel truss girder, wherein:
the device comprises a track geometric state detector, a three-way jack and a jack control system;
the track geometric state detector is arranged on a steel rail and used for measuring a coarsely laid track structure and acquiring geometric shape and position information of the track structure;
and a plurality of three-way jacks are arranged between the sleeper plate and the steel truss girder sidewalk, and the geometric positions of the sleeper plate are finely adjusted in the vertical direction, the longitudinal direction and the transverse direction of the rail under the synchronous actuation of the jack control system.
Preferably, the fine adjustment system further comprises a connecting screw;
the connecting screw rod is arranged on a lifting sleeve reserved on the side surface of the sleeper plate;
the three-way jack is connected with and adjusts the sleeper plate through the connecting screw rod.
Preferably, the three-way jack surface faces one end of the steel truss girder sidewalk and is fixed on the side face, close to the direction of the sleeper plate, of the steel truss girder sidewalk.
Preferably, the three-way jack comprises a bearing platform, and the bearing platform is fixedly connected with the connecting screw rod.
Preferably, the three-way jack further comprises a jack vertical jack, a jack longitudinal jack, a jack transverse jack connected to the bearing platform, actuated alone or in combination by the jack control system.
Preferably, the three-way jack is detachably connected with the sleeper plate and the steel truss sidewalk.
Preferably, the three-way jacks are symmetrically arranged on two lateral sides of each sleeper plate along a longitudinal line in the rail.
In the utility model, the track geometric state detector measures the track structure which is coarsely paved according to the preset precision, acquires the geometric shape and position information of the track structure, and calculates the corresponding amount to be adjusted of each sleeper plate; the connecting screw rods are installed by utilizing the hoisting sleeves reserved on two sides of the sleeper plate, and the other ends of the connecting screw rods are fixed on the three-way jacks through the positioning bolts; the three-way jack is installed steel truss girder pavement side, the three-way jack by control system control drive, control system through the bluetooth with track geometric status detector is connected and is acquireed the sleeper board volume of waiting to adjust.
The utility model discloses utilize track geometric state detector measures the whole geometry position of track structure, gathers the installation deviation of steel longeron, sleeper slab, fastener system, rail completely, again through the contrast with track structure geometry position standard data, calculates track structure's the volume of adjusting of treating. The adjustment amount to be adjusted is combined and transferred to the adjustment of the sleeper plate, so that batch adjustment of each structure of the track is avoided, and the workload of fine adjustment of the track structure is reduced. The track geometric state detector has clear standards, is suitable for the track construction standards of China, does not need to independently develop the track structure of the steel truss girder sleeper slab, and reduces the cost of additionally purchasing the overall fine adjustment equipment of the track.
The track geometric state detector transmits the amount to be adjusted of the corresponding sleeper plate to the control system through the Bluetooth system, and the control system controls the three-way jack to perform corresponding actions, so that the geometric shape and position of the sleeper plate are accurately adjusted, and the automatic fine adjustment of the sleeper plate structure track on the steel truss girder is realized.
The three-way jack is fixedly installed on the side faces of the steel truss girder sidewalks on two sides of the track structure, the connecting screw rod is installed on a bearing platform of the three-way jack, and the connecting screw rod is connected with a hoisting sleeve reserved on the sleeper plate through threads. And the three-way jack realizes the accurate adjustment of the geometric shape and position of the sleeper plate through a connecting screw rod. The three-way jack is assembled with the jack control system, and the jack control system receives the geometric shape and position adjustment quantity information corresponding to the sleeper plate sent by the track geometric state detector through Bluetooth equipment.
After the fine adjustment of the track structure is finished, fixing the sleeper slab and the steel truss girder main longitudinal girder by using a high-strength connecting bolt, and then pouring a concrete cushion layer between the sleeper slab and the steel truss girder main longitudinal girder. And after the concrete cushion is stably poured, the three-way jack and the jack control system can be dismantled, so that the repeated utilization is realized.
The above-described preferred features may be combined with each other as long as they do not conflict with each other.
Generally, through the utility model discloses above technical scheme who conceives compares with prior art, has following beneficial effect:
1. the utility model discloses an automatic accurate adjustment system of open bridge floor sleeper plate formula track structure on steel longeron utilizes track geometry state detector to gather track structure geometry state and confirms the sleeper board and treats the adjustment volume, passes through communication systems such as bluetooth with the adjustment volume information and conveys to jack control system, and jack control system real-time drive three-dimensional jack accurate adjustment sleeper board geometry position realizes the automatic accurate adjustment of sleeper board track structure on the steel longeron, increases substantially the operating efficiency.
2. The utility model discloses an automatic accurate adjustment system of open bridge floor sleeper plate track structure on steel longeron, track structure accurate adjustment process only need an operating personnel to push cable tiger track geometric state detector, just can realize carrying out automatic accurate adjustment to measured track structure, has increased substantially the operating efficiency of track structure accurate adjustment.
3. The utility model discloses an automatic accurate adjustment system of open bridge floor sleeper plate formula track structure on steel longeron, the installation error of steel longeron, sleeper board, fastener and each system of rail has been considered comprehensively to the track structure geometry form and position information that track geometry state detector gathered to the adjustment compensaties on the sleeper board is transferred in unison to, directly uses rail surface precision as the evaluation standard, avoids the influence of installation error between each structure of track system, has reduced the expense of purchasing a whole set of track accurate adjustment equipment simultaneously, has reduced construction cost.
4. The utility model discloses an automatic accurate adjustment system of open bridge floor sleeper plate track structure on steel longeron, track geometry state detector is that the track detects commonly used, ripe product, has higher commonality and complete standard support, is fit for china's track construction and uses, has reduced the expense of extra purchase track accurate adjustment system, reduces construction cost.
5. The utility model discloses an automatic accurate adjustment system of open bridge floor sleeper plate formula track structure on steel longeron, three-dimensional jack are installed in steel longeron pavement side, do not occupy the operation space of track structure construction, have improved the less problem of sleeper plate structure track adjustment volume on the steel longeron bridge, can adapt to different span steel longeron bridge floor structures simultaneously, have better commonality, have reduced construction cost.
6. The utility model discloses an automatic accurate adjustment system of open bridge floor sleeper plate track structure on steel longeron can demolish the reuse of three-dimensional jack after the accurate adjustment construction operation is accomplished.
7. The utility model discloses an automatic fine-tuning system of open bridge floor sleeper plate formula track structure on steel longeron, the synchronous action adjustment of three-way jack the sleeper plate has been avoided the inconsistent arouses of three-way jack displacement the damage of sleeper plate.
7. The utility model discloses an automatic accurate adjustment system of open bridge floor sleeper plate track structure on steel longeron, track geometry state detector can directly convey to through the bluetooth according to the measurement mileage and the sleeper board serial number that set up before measuring, the track geometry form and position data of automatic positioning measurement jack control system has saved a large amount of complicated work load that manual measurement brought.
Drawings
Fig. 1 is a schematic view of the overall structure of the automatic fine adjustment system for the open bridge sleeper slab structure track on the steel truss girder of the present invention;
FIG. 2 is a schematic view of the longitudinal section structure of the automatic fine tuning system for open bridge sleeper slab structure track on steel truss girder of the present invention;
fig. 3 is a schematic diagram of the whole track sleeper slab fine adjustment structure of the automatic fine adjustment system for the track of the open bridge track sleeper slab structure on the steel truss girder of the utility model;
fig. 4 is a top view of the sleeper slab fine adjustment structure of the open bridge sleeper slab structure track automatic fine adjustment system on the steel truss girder of the present invention;
fig. 5 is a schematic longitudinal section view of a sleeper slab fine adjustment structure of an automatic fine adjustment system for a track of an open bridge sleeper slab structure on a steel truss girder of the present invention;
fig. 6 is a schematic view of the overall structure of the three-way jack and the jack control system of the automatic fine adjustment system for the open bridge sleeper slab structure track on the steel truss girder of the present invention;
fig. 7 is a top view of the three-way jack and the jack control system of the automatic fine adjustment system for the open bridge sleeper slab structure track on the steel truss girder of the present invention;
fig. 8 is a schematic view of the whole structure of the automatic fine adjustment system for open bridge sleeper slab structure track on steel truss girder of the present invention after the construction is completed;
fig. 9 is a schematic view of the vertical section structure of the steel truss girder open-bridge sleeper slab structure track after the construction of the automatic fine adjustment system is completed.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. Furthermore, the technical features mentioned in the embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other. The present invention will be described in further detail with reference to the following embodiments.
As a preferred embodiment of the present invention, as shown in fig. 1 to 9, the present invention provides an automatic fine tuning system for a sleeper slab track structure of an open bridge deck on a steel truss girder, wherein: the device comprises a track geometric state detector 1, a three-way jack 7, a jack control system 8 and a connecting screw rod 9.
As shown in fig. 2, the track geometric state detector 1 is arranged on a steel rail 2, and is configured to measure a coarsely laid track structure and collect geometric configuration and position information of the track structure.
As shown in fig. 2-5, a plurality of said three-way jacks 7 are arranged between the sleeper slab 4 and the steel truss sidewalk 6, and the geometric position of the sleeper slab 4 is finely adjusted in three directions of rail vertical direction, rail longitudinal direction and rail transverse direction under the synchronous actuation of said jack control system 8.
As shown in fig. 1 to 5, the connecting screw 9 is mounted on a lifting sleeve 10 reserved on the lateral surface of the sleeper plate 4; the three-way jack 7 is connected with and adjusts the sleeper plate 4 through the connecting screw rod 9.
And the three-way jack 7 faces one end of the steel truss girder sidewalk 6 and is fixed on the side surface of the steel truss girder sidewalk 6 close to the direction of the sleeper plate 4.
The three-way jack 7 comprises a bearing platform, and is fixedly connected with the connecting screw rod 9 through the bearing platform. As shown in fig. 6-7, the three-way jack 7 further comprises a jack vertical jack 13, a jack longitudinal jack 14, a jack transversal jack 15 connected to the bearing platform, actuated alone or in combination by the jack control system 8.
The three-way jack 7 is detachably connected with the sleeper plate 4 and the steel truss girder sidewalk 6 so as to be conveniently detached and reused.
The three-way jacks 7 are symmetrically arranged on the two transverse sides of each sleeper plate 4 along the middle longitudinal line of the rail, and four three-way jacks are symmetrically arranged on each sleeper plate in the embodiment.
The utility model discloses an automatic fine tuning method of fine tuning system of open bridge floor sleeper plate track structure on steel longeron, including following step:
and S1, roughly paving the rail structure including the sleeper plate 4, the fastener system 3 and the steel rail 2 according to preset precision.
S2, cleaning the hoisting sleeve 10 reserved on two sides of the sleeper plate 4, and installing the connecting screw rod 9 along the hoisting sleeve 10 in a threaded manner. The other end of the connecting screw rod 9 is fixedly installed on the three-way jack 7 bearing platform, a jack control system 8 is assembled on the three-way jack 7, and the jack control system 8 can receive signals through Bluetooth equipment. The three-way jack 7 is arranged on the side face of the steel truss girder sidewalk 6, and does not occupy the operation space of track structure constructors.
And cleaning the surface of the steel rail 2 to ensure that the rail surface of the steel rail is clean and other articles influencing the measuring precision of the track geometric state detector 1, such as concrete blocks, gravel, oil stains, rust blocks and the like, do not exist.
And S3, setting a fine adjustment starting point mileage, a fine adjustment section sleeper plate number and corresponding mileage information in the track geometric state detector 1 before the fine adjustment construction operation starts. The track geometric state detector 1 determines the mileage and the number of the corresponding sleeper plate by recording the rolling turns of the wheels.
S4, installing the track geometric state detector 1 at a fine tuning operation starting point, and pushing the track geometric state detector 1 by a worker to acquire track structure geometric form and position information;
s5, installing the track geometric state detector 1 at a fine tuning operation starting point, pushing the track geometric state detector 1 by a worker to acquire track structure geometric form and position information, and synchronously calculating the geometric form and position deviation of the track structure by the track geometric state detector 1.
And S6, sending the amount to be adjusted corresponding to the sleeper plate 4 to the jack control system 8 through a Bluetooth system.
S7, after receiving the adjustment amount of the corresponding tie plate, the jack control system 8 controls the three-way jack 7 to act, and precisely adjusts the geometric position of the tie plate 4, thereby achieving automatic precise adjustment of the track structure, as shown in fig. 8 to 9.
Preferably, in step S4, the track geometric state detector 1 is used to measure the overall geometric shape and position of the track structure, and completely collect the installation deviation of the steel truss girder main longitudinal girder 5, the sleeper slab 4, the fastener system 3 and the steel rail 2;
in step S5, the amount of adjustment to be made to the track structure is calculated by comparing the standard data with the geometric standard data of the track structure;
in step S6, the amount to be adjusted is combined and transferred to the adjustment of the tie plate.
Preferably, the method further comprises the following steps:
s8, after the fine adjustment of the track structure in the fine adjustment section is finished, fixing the sleeper slab 4 and the steel truss girder main longitudinal girder 5 by using high-strength connecting bolts, and then pouring a concrete cushion layer between the sleeper slab 4 and the steel truss girder main longitudinal girder 5; and after the concrete cushion is stably poured, the three-way jack 7 and the jack control system 8 are disassembled, so that the subsequent fine adjustment interval can be repeatedly utilized.
The connecting screw 9 is arranged on the rail sleeper plate 4 by utilizing the reserved hoisting sleeve 10, and the three-way jack 7 drives the rail sleeper plate 4 to adjust the geometric shape and position through the connecting screw 9. The connecting screw rod 9 and the bearing platform of the three-way jack 7 are fastened and connected through the positioning bolt 16, so that the structure is stable, and the mounting and the dismounting are convenient.
Each sleeper plate 4 is provided with four groups of three-way jacks 7 and jack control systems 8, and two groups of sleeper plates 4 are symmetrically arranged on two sides of each sleeper plate. Under the drive of the jack control system 8, the four groups of three-way jacks 7 synchronously adjust the vertical, horizontal and vertical three-way positions of the sleeper slab 4; the adjustment of the longitudinal position of the rail sleeper plate 4 along the rail is carried out by the longitudinal top braces 14 of the front and rear two groups of three-way jacks, the longitudinal top brace 14 of the three-way jack positioned at one end of the rail sleeper plate 4 is used for adjusting the longitudinal action of the rail sleeper plate 4 along one direction, and the longitudinal top brace 14 of the three-way jack positioned at the other end of the rail sleeper plate 4 is used for adjusting the longitudinal action of the rail sleeper plate along the other direction. The three-way jack vertical top support 13 is responsible for adjusting the vertical position of the rail sleeper slab, and the three-way jack transverse top support 15 is responsible for adjusting the transverse position of the rail sleeper slab. The four groups of three-way jacks 7 act synchronously, so that the damage to the sleeper plate 4 caused by inconsistent jack action is avoided.
After the automatic fine adjustment operation is completed, the sleeper plate 4 and the steel truss girder main longitudinal girder 5 are fixedly connected through the high-strength connecting bolt 11 and the high-strength connecting bolt hole 17, the concrete cushion 12 is poured through a gap between the sleeper plate limiting hole 18 and the steel truss girder main longitudinal girder limiting part, and after the concrete cushion is stably poured, the three-way jack 7 and the control system 8 can be detached, so that the automatic fine adjustment equipment can be reused.
It will be understood by those skilled in the art that the foregoing is merely a preferred embodiment of the present invention, and is not intended to limit the invention to the particular forms disclosed, but on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention as defined by the appended claims.
Claims (7)
1. The utility model provides an automatic fine tuning system of open bridge floor sleeper plate track structure on steel longeron which characterized in that:
comprises a track geometric state detector (1), a three-way jack (7) and a jack control system (8);
the track geometric state detector (1) is arranged on a steel rail (2) and used for measuring a rough-paved track structure and acquiring geometric form and position information of the track structure;
a plurality of three-way jacks (7) are arranged between the sleeper plate (4) and the steel truss girder sidewalk (6), and the geometric positions of the sleeper plate (4) are finely adjusted in the vertical, longitudinal and transverse directions of the rail under the synchronous actuation of the jack control system (8).
2. The automatic fine tuning system of the open bridge deck sleeper slab track structure on the steel truss beam as claimed in claim 1, wherein:
the fine adjustment system also comprises a connecting screw rod (9);
the connecting screw rod (9) is arranged on a hoisting sleeve (10) reserved on the side surface of the sleeper plate (4);
the three-way jack (7) is connected with and adjusts the sleeper plate (4) through the connecting screw rod (9).
3. The automatic fine tuning system of the open bridge deck sleeper slab track structure on the steel truss beam as claimed in claim 1, wherein:
and the three-way jack (7) faces one end of the steel truss girder sidewalk (6) and is fixed on the side face of the steel truss girder sidewalk (6) close to the direction of the sleeper plate (4).
4. The automatic fine adjustment system of the open bridge deck sleeper slab track structure on the steel truss girder of claim 2, which is characterized in that:
the three-way jack (7) comprises a bearing platform and is fixedly connected with the connecting screw rod (9) through the bearing platform.
5. The automatic fine adjustment system of the open bridge deck sleeper slab track structure on the steel truss girder of claim 4, which is characterized in that:
the three-way jack (7) further comprises a jack vertical shoring (13), a jack longitudinal shoring (14) and a jack transverse shoring (15) which are connected to the bearing platform and are actuated by the jack control system (8) alone or in combination.
6. The automatic fine tuning system of the open bridge deck sleeper slab track structure on the steel truss beam as claimed in claim 1, wherein:
the three-way jack (7) is detachably connected with the sleeper plate (4) and the steel truss girder sidewalk (6).
7. The automatic fine tuning system of the open bridge deck sleeper slab track structure on the steel truss beam as claimed in claim 1, wherein:
the two transverse sides of each sleeper plate (4) are symmetrically provided with the three-way jacks (7) along the middle longitudinal line of the rail.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921519922.8U CN211471995U (en) | 2019-09-12 | 2019-09-12 | Automatic fine adjustment system for open bridge deck sleeper plate type track structure on steel truss girder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921519922.8U CN211471995U (en) | 2019-09-12 | 2019-09-12 | Automatic fine adjustment system for open bridge deck sleeper plate type track structure on steel truss girder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211471995U true CN211471995U (en) | 2020-09-11 |
Family
ID=72376673
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921519922.8U Active CN211471995U (en) | 2019-09-12 | 2019-09-12 | Automatic fine adjustment system for open bridge deck sleeper plate type track structure on steel truss girder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211471995U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115262303A (en) * | 2022-09-29 | 2022-11-01 | 中建安装集团有限公司 | Intelligent control-based automatic track panel assembling system and method |
-
2019
- 2019-09-12 CN CN201921519922.8U patent/CN211471995U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115262303A (en) * | 2022-09-29 | 2022-11-01 | 中建安装集团有限公司 | Intelligent control-based automatic track panel assembling system and method |
| CN115262303B (en) * | 2022-09-29 | 2022-12-20 | 中建安装集团有限公司 | Intelligent control-based automatic track panel assembling system and method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101503870B (en) | Construction method for two-block unballasted track bed board | |
| CN101748662B (en) | Construction process for double-block ballastless track bed on subgrade | |
| CN112411265A (en) | Ballastless track structure suitable for large-span bridge and mounting method | |
| CN106758590B (en) | Construction temporary beam for replacing railway track under non-stop condition and construction method | |
| CN103952951A (en) | Process for high speed railway ballastless track construction | |
| CN105908583B (en) | System for replacing ballast track bed of tunnel with ballastless track under condition of uninterrupted driving | |
| CN218478970U (en) | Large-adjustment-quantity plate type ballastless track structure | |
| CN211471995U (en) | Automatic fine adjustment system for open bridge deck sleeper plate type track structure on steel truss girder | |
| CN110656570A (en) | Telescopic pedestrian bridge, construction device and construction method | |
| CN111455852A (en) | Assembling method of movable formwork for bridge construction | |
| CN110106751A (en) | A kind of sedimentation method of adjustment suitable for II plate-type non-fragment orbit of CRTS | |
| CN113622316A (en) | Steel truss girder multipoint traction type pushing construction system and construction method thereof | |
| CN101691726A (en) | Construction process of double-block ballastless track | |
| CN106948228B (en) | Quick replacement method for track plate of plate-type ballastless track | |
| CN101838967B (en) | Construction technology of ballast bed of bridge double-block ballastless track | |
| CN110761133A (en) | Automatic fine adjustment system and method for open bridge deck sleeper plate type track structure on steel truss girder | |
| KR20040012295A (en) | Method and apparatus for changing steel bridge of supporting rail into concrete bridge using temporary bent | |
| CN105926381B (en) | Method for replacing ballast track bed of tunnel with ballastless track under condition of uninterrupted driving | |
| CN203256551U (en) | Double-block type ballastless track framed bent device | |
| CN103015313B (en) | A kind of bridge floor continuation apparatus and bridge floor continuation method being applied to simply supported girder bridge | |
| CN116590967A (en) | Method for controlling pushing connection precision of magnetic levitation turnout in overhead section | |
| CN214459224U (en) | Ballastless track structure suitable for large-span bridge | |
| CN213772737U (en) | Strut type straight-paving slab ballastless track system | |
| CN211900629U (en) | Tunnel secondary lining concrete chute system | |
| CN201588172U (en) | Integral single-tower non-dorsal-cord cable-stayed-bridge king tower lifting template |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |