CN218812902U - Self-sensing concrete filled steel tube sleeper structure suitable for ballastless track - Google Patents
Self-sensing concrete filled steel tube sleeper structure suitable for ballastless track Download PDFInfo
- Publication number
- CN218812902U CN218812902U CN202223316182.2U CN202223316182U CN218812902U CN 218812902 U CN218812902 U CN 218812902U CN 202223316182 U CN202223316182 U CN 202223316182U CN 218812902 U CN218812902 U CN 218812902U
- Authority
- CN
- China
- Prior art keywords
- sleeper
- concrete
- concrete block
- block
- sensing
- 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
- 241001669679 Eleotris Species 0.000 title claims abstract description 139
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 59
- 239000010959 steel Substances 0.000 title claims abstract description 59
- 239000000835 fiber Substances 0.000 claims abstract description 31
- 230000003287 optical effect Effects 0.000 claims abstract description 14
- 230000000149 penetrating effect Effects 0.000 claims abstract description 3
- 239000013307 optical fiber Substances 0.000 claims description 18
- 239000007788 liquid Substances 0.000 claims description 5
- 230000009471 action Effects 0.000 claims description 3
- 230000004044 response Effects 0.000 abstract description 6
- 238000010276 construction Methods 0.000 abstract description 4
- 238000012544 monitoring process Methods 0.000 description 15
- 230000006872 improvement Effects 0.000 description 9
- 238000000034 method Methods 0.000 description 8
- 230000008569 process Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 230000008447 perception Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 230000008676 import Effects 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000009529 body temperature measurement Methods 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000036571 hydration Effects 0.000 description 1
- 238000006703 hydration reaction Methods 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 238000013441 quality evaluation Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000002277 temperature effect Effects 0.000 description 1
Images
Classifications
-
- 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
- Y02A30/30—Adapting or protecting infrastructure or their operation in transportation, e.g. on roads, waterways or railways
Landscapes
- Measuring Temperature Or Quantity Of Heat (AREA)
Abstract
The utility model discloses a self-sensing concrete-filled steel tube sleeper structure suitable for ballastless tracks, which comprises a double-block concrete-filled steel tube sleeper and a fiber grating sensing system; the double-block type steel pipe concrete sleeper comprises a first sleeper concrete block and a second sleeper concrete block which are respectively arranged on two transverse sides, and at least one pipeline concrete structure is arranged between the first sleeper concrete block and the second sleeper concrete block so as to connect the sleeper concrete blocks on the two sides; the fiber bragg grating sensing system comprises a sensing optical cable penetrating through a first sleeper concrete block, a pipeline concrete structure and a second sleeper concrete block, wherein a plurality of FBG strain sensors and a plurality of FBG temperature sensors are connected in series on the sensing optical cable; the FBG strain sensor and the FBG temperature sensor are respectively arranged in the first sleeper concrete block and the second sleeper concrete block. The utility model discloses can directly obtain the inside strain of sleeper and temperature response, measure the accuracy, construction convenience, the durability is strong.
Description
Technical Field
The utility model belongs to the technical field of the track traffic engineering monitoring, concretely relates to self-perception concrete filled steel tube sleeper structure suitable for ballastless track.
Background
Railways are a safe, convenient and economical means of transportation and are an important transportation infrastructure driving economic growth. In recent decades, the construction of railway infrastructures in China has been rapidly developed and continues to maintain the trend of expansion and growth. Along with the increase of the demand on railway transportation, the speed and the axle weight of the train are also continuously increased, so that the railway infrastructure is heavily loaded, and the long-term service safety is threatened. Therefore, there is a need for long term continuous monitoring of the main structural components of railway systems (rails, ties, etc.).
The existing railway system monitoring modes can be generally divided into: surface contact monitoring and non-contact monitoring. The surface contact type monitoring is to fix various sensors on the outer surface of a structure to be monitored, and monitor the deformation, vibration and the like of the outer surface of the structure, and because the sensors are exposed, the risk of sensor failure or damage caused by environmental factors exists; the non-contact monitoring is to carry out structure monitoring by non-contact technologies such as videos, images and the like, and the working performance of the non-contact monitoring is greatly influenced by weather and illumination conditions, so that the measurement precision is difficult to guarantee, and the available time is limited. In addition, in the current monitoring mode, whether surface contact monitoring or non-contact monitoring is carried out on the surface of the structure, and the stress and strain condition in the structure cannot be directly obtained.
SUMMERY OF THE UTILITY MODEL
To prior art's above defect or improve in the demand one or more, the utility model provides a concrete filled steel tube sleeper structure from perception suitable for ballastless track through burying fiber grating sensing system in the concrete filled steel tube sleeper, forms the concrete filled steel tube sleeper structure that has meet an emergency and temperature response ability of perception and high durability, can directly obtain the inside meeting an emergency and temperature-response of sleeper, measures the accuracy, construction convenience, and the durability is strong.
In order to achieve the purpose, the utility model provides a self-sensing concrete-filled steel tube sleeper structure suitable for a ballastless track, which comprises a double-block concrete-filled steel tube sleeper and a fiber grating sensing system;
the double-block type steel pipe concrete sleeper comprises a first sleeper concrete block and a second sleeper concrete block which are respectively arranged on two transverse sides, and at least one pipeline concrete structure is arranged between the first sleeper concrete block and the second sleeper concrete block so as to connect the sleeper concrete blocks on the two sides;
the fiber bragg grating sensing system comprises a sensing optical cable penetrating through a first sleeper concrete block, a pipeline concrete structure and a second sleeper concrete block, wherein a plurality of FBG strain sensors and a plurality of FBG temperature sensors are connected in series on the sensing optical cable; the FBG strain sensor and the FBG temperature sensor are respectively arranged in the first sleeper concrete block and the second sleeper concrete block.
As a further improvement, the first sleeper concrete block or the second sleeper concrete block side sets up optic fibre and imports and exports, the sensing optical cable imports and exports the entering and draws forth through this optic fibre.
As a further improvement of the present invention, the FBG temperature sensor comprises an FBG strain sensor and an external sleeve, and the gap of the sleeve is filled with a heat conducting liquid.
As the utility model discloses a further improvement, FBG strain sensor locates the track action point below in the sleeper high strain area, FBG temperature sensor locates in the sleeper low strain area.
As the utility model discloses a further improvement, FBG temperature sensor is the same with FBG strain sensor's the distance between position and the sleeper block upper surface that sets up.
As a further improvement of the utility model, be equipped with an FBG strain sensor and an FBG temperature sensor in first sleeper concrete piece and the second sleeper concrete piece respectively at least.
As a further improvement, the first sleeper concrete block and the second sleeper concrete block are respectively provided with an FBG temperature sensor and are symmetrically arranged.
As a further improvement, be equipped with two FBG strain sensor in first sleeper concrete block and the second sleeper concrete block respectively, and symmetrical arrangement.
As a further improvement, the first sleeper concrete block and the second sleeper concrete block are internally provided with reinforcing mesh sheets or stirrups.
As the further improvement of the utility model, the pipeline concrete structure includes two or three, and the hollow steel pipe that corresponds is two or three, the sensing optical cable passes from one of them hollow steel pipe.
Generally, through the utility model discloses above technical scheme who conceives compares with prior art, has following beneficial effect:
(1) The utility model discloses arrange fiber grating sensing system inside the steel pipe concrete structure, the structural feature of make full use of steel pipe concrete sleeper regards hollow steel pipe as fiber channel for after the completion is pour to the sleeper, fiber sensing system does not expose, has guaranteed the safety of sensing system at sleeper storage, transportation and the in-service in-process. And the sensor material has stable performance, is not influenced by complex chemical reaction environment in the hydration process of concrete, and has high durability. Through the fiber bragg grating sensing system buried in the concrete filled steel tube sleeper, the concrete filled steel tube sleeper structure with self-sensing capability of strain and temperature response and high durability is formed, the strain and temperature response in the sleeper can be directly obtained, the measurement is accurate, the construction is convenient, and the durability is strong.
(2) The utility model discloses arrange fiber grating sensing system on the inside reinforcing bar net piece or the stirrup of sleeper block to fix with the ribbon, because sensing system geometry is fine, easily lay, it is less to the influence of sleeper bulk strength, need not to change the original cloth muscle mode of sleeper block, have good constructability.
(3) The utility model discloses draw fiber grating sensing system's head end and tail end from same optic fibre export, fiber system's head end and tail end all can be used to measure the inside strain of sleeper and temperature state to make when inside optic fibre takes place to damage, measure in order to obtain more sensor monitor information from both ends.
(4) The utility model discloses the FBG temperature sensor who arranges respectively in the sleeper block of both sides can provide temperature compensation for the FBG strain transducer in each sleeper block respectively, improves the monitoring accuracy of meeting an emergency.
Drawings
FIG. 1 is a diagram of a sleeper and an internal sensing optical fiber connected by two pipes of concrete according to an embodiment of the present invention;
fig. 2 is a top view of the embodiment of the present invention in fig. 1;
fig. 3 is a side sectional view of the embodiment of the present invention shown in fig. 1;
fig. 4 is a layout diagram of a sleeper and an internal sensing optical fiber connected by three concrete pipes according to an embodiment of the present invention;
fig. 5 is a top view of the embodiment of the present invention shown in fig. 4;
fig. 6 is a side sectional view of the embodiment of the present invention shown in fig. 4;
fig. 7 is a schematic structural diagram of a temperature sensor according to an embodiment of the present invention.
In all the figures, the same reference numerals denote the same features, in particular: 1-a track, 2-FBG temperature sensors, 3-FBG strain sensors, 4-reinforcing steel meshes or stirrups, 5-sleeper concrete blocks, 6-a pipeline concrete structure, 7-a sensing optical cable and 8-an optical fiber inlet and outlet; 201 FBG strain sensor, 202 outer sleeve, 203 thermally conductive liquid.
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 for purposes of illustration only 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.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description of the present invention and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be interconnected within two elements or in a relationship where two elements interact with each other unless otherwise specifically limited. The specific meaning of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.
In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
As shown in fig. 1 to fig. 6, the utility model discloses on current two block formula steel pipe concrete sleeper basis, to the durability that the present monitoring means exists and the problem that receives the environmental condition influence, arrange fiber grating sensing system inside the steel pipe concrete to realize sleeper inside temperature, meet an emergency from perception function, and improve the durability. The utility model is suitable for a ballastless track's self-perception concrete filled steel tube sleeper structure, including two formula concrete filled steel tube sleepers and fiber grating sensing system.
Specifically, the double-block type steel pipe concrete sleeper comprises a first sleeper concrete block and a second sleeper concrete block which are respectively arranged at two transverse sides and are respectively used for supporting a track 1 corresponding to the top; at least one pipeline concrete structure 6 is arranged between the first sleeper concrete block and the second sleeper concrete block and is used for connecting the sleeper concrete blocks on two sides. The hollow steel pipes are transversely arranged between the sleeper concrete blocks, and each hollow steel pipe is filled with concrete simultaneously in the pouring process of the sleeper concrete blocks to form a pipeline concrete structure 6.
The fiber bragg grating sensing system comprises a sensing optical cable 7 which runs through a first sleeper concrete block, a pipeline concrete structure 6 and a second sleeper concrete block, and a plurality of FBG strain sensors 3 and a plurality of FBG temperature sensors 2 are connected in series on the sensing optical cable 7. FBG strain sensor 3 and FBG temperature sensor 2 divide and locate first sleeper concrete block and second sleeper concrete block in, are equipped with one FBG strain sensor 3 and one FBG temperature sensor 2 in first sleeper concrete block and the second sleeper concrete block respectively at least.
And an optical fiber inlet and outlet 8 is arranged on the side surface of one sleeper concrete block 5 to protect the head end and the tail end of the sensing optical fiber, and the sensing optical fiber is connected with the fiber bragg grating demodulator to acquire data. The sensing optical fiber of the fiber bragg grating sensing system enters from the optical fiber inlet and outlet 8, sequentially passes through the first sleeper concrete block, the pipeline concrete structure 6, the second sleeper concrete block, the pipeline concrete structure 6 and the first sleeper concrete block, and is led out from the optical fiber inlet and outlet 8. The utility model discloses a fiber grating sensing system gets into and draws forth by same optic fibre mouth, forms closed circuit, and sensing system's head end and tail end all can be used to measure inside meeting an emergency and temperature state to when making inside optic fibre take place to damage, can measure from head end and tail end in proper order, damage the monitoring data loss that causes with the reduction sensor.
Preferably, a steel mesh or a stirrup 4 is arranged in each of the first sleeper concrete block and the second sleeper concrete block, and is used for enhancing the strength of the sleeper concrete block on one hand and arranging a fiber bragg grating sensing system on the other hand.
The arrangement process of the fiber grating sensing system is as follows: before concrete is poured on a sleeper, the fiber bragg grating sensing system enters from an optical fiber inlet and outlet arranged on the side face of one sleeper block, is bound and fixedly arranged on a steel bar net piece or a stirrup of the sleeper block by using a binding tape and enters into the other sleeper block through a hollow steel pipe, and after the strain sensor and the temperature sensor are arranged, returns to the original sleeper block through the hollow steel pipe again and is led out from an optical fiber outlet on the side face of the sleeper block. Therefore, the optical fiber sensing system is not exposed after the pouring is finished, and the optical fiber sensor is not damaged in the process of sleeper storage, transportation and service.
The pipeline concrete structure 6 is formed by casting hollow steel pipes, the hollow steel pipes are transversely arranged in a manufacturing mould of the sleeper concrete block, and the hollow steel pipes and the sleeper concrete block 5 are cast together after the fiber bragg grating sensing system is arranged. The hollow steel tube is automatically filled with concrete in the pouring process, and after the pouring is finished, the pipeline concrete provides protection for the internal optical fibers.
Further preferably, the cross section of the hollow steel pipe of the piping concrete structure 6 is circular, and the number is preferably two or three. In one embodiment shown in fig. 1 to 3, the number of hollow steel tubes is two, and for two hollow steel tubes, it is preferable to arrange them symmetrically about the centre line of the fastener. In another embodiment of fig. 4 to 6, the number of hollow steel pipes is three, and for three hollow steel pipes, it is preferable to arrange in an inverted triangle. In addition, as shown in the attached drawings, when two or three steel pipes are arranged, the sensing optical cables all penetrate through one hollow steel pipe.
A plurality of FBG temperature sensors 2 and FBG strain sensors 3 are prefabricated on sensing optical fibers of the fiber bragg grating sensing system. FBG strain sensor 3 is connected with outside concrete zonulae occludens after the sleeper piece is pour, does not have relative slip to guarantee that outside meeting an emergency can transmit to inside sensing grating in the encapsulated layer, realize the measurement to meeting an emergency.
The FBG temperature sensor 2 is used to monitor sleeper temperature changes and provide temperature compensation for the FBG strain sensor 3. As shown in fig. 7, FBG temperature sensor 2 comprises FBG strain sensor 201 and outer sleeve 202, the gap of which is filled with heat conductive liquid 203; that is, the FBG temperature sensor 2 is manufactured by adding a sleeve outside the FBG strain sensor, a gap exists between the sleeve and the internal optical fiber, and the heat conducting liquid is densely filled in the gap, so that the external strain cannot be transmitted to the internal sensitive grating, and only the external heat can be transmitted into the internal sensitive grating through the sleeve-heat conducting liquid-packaging layer, so that the temperature can be measured without being influenced by the mechanical strain of the concrete.
The wavelength change of the FBG strain sensor is influenced by mechanical strain, temperature strain and temperature effect, the temperature sensor additionally arranged on the sleeve is arranged to provide temperature compensation for the strain sensor, and the mechanical strain measured by the strain sensor can be separated through calculation.
The FBG temperature sensors 2 are preferably two, are respectively arranged in the sleeper concrete blocks 5 at two sides and are symmetrically arranged, so that temperature compensation is respectively provided for the FBG strain sensors in the same sleeper block. The FBG strain sensors 3 are preferably four, and two are disposed at the two gauges. More preferably, the FBG strain sensors are arranged in a high-strain area in the sleeper below the action point of the track 1 and are symmetrically arranged on two sides of the central line of the fastener. The FBG temperature sensor is arranged in a low-strain area in the sleeper, so that the influence of mechanical force strain on temperature measurement can be reduced.
Preferably, the distances between the arrangement positions of the FBG temperature sensor 2 and the FBG strain sensor 3 and the upper surface of the sleeper block are the same, so that the accuracy of temperature compensation can be ensured.
The utility model discloses a self-perception concrete filled steel tube sleeper structure suitable for ballastless track can directly detect and real-time supervision the inside meeting an emergency of sleeper and temperature response. The sleeper manufacturing quality evaluation and the guidance maintenance decision can be carried out according to the temperature and the strain state of the steel tube concrete sleeper in the manufacturing and forming processes; the health evaluation of the sleeper and the finger guide pipe maintenance decision can be carried out according to the temperature and the strain state of the steel tube concrete sleeper in the service process.
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 (10)
1. A self-sensing concrete filled steel tube sleeper structure suitable for a ballastless track is characterized by comprising a double-block concrete filled steel tube sleeper and a fiber bragg grating sensing system;
the double-block type steel pipe concrete sleeper comprises a first sleeper concrete block and a second sleeper concrete block which are respectively arranged on two transverse sides, and at least one pipeline concrete structure is arranged between the first sleeper concrete block and the second sleeper concrete block so as to connect the sleeper concrete blocks on the two sides;
the fiber bragg grating sensing system comprises a sensing optical cable penetrating through a first sleeper concrete block, a pipeline concrete structure and a second sleeper concrete block, wherein a plurality of FBG strain sensors and a plurality of FBG temperature sensors are connected in series on the sensing optical cable; the FBG strain sensor and the FBG temperature sensor are respectively arranged in the first sleeper concrete block and the second sleeper concrete block.
2. The self-sensing concrete filled steel tube sleeper structure suitable for the ballastless track of claim 1, wherein an optical fiber inlet and outlet is arranged on the side surface of the first sleeper concrete block or the second sleeper concrete block, and the sensing optical cable enters and exits through the optical fiber inlet and outlet.
3. The self-sensing concrete filled steel tube sleeper structure suitable for the ballastless track of claim 1, wherein the FBG temperature sensor comprises an FBG strain sensor and an external sleeve, and a gap of the sleeve is filled with a heat conducting liquid.
4. The self-sensing concrete filled steel tube sleeper structure suitable for the ballastless track of claim 1, wherein the FBG strain sensor is arranged in a high strain area in the sleeper below a track action point, and the FBG temperature sensor is arranged in a low strain area in the sleeper.
5. The self-sensing concrete filled steel tube sleeper structure suitable for the ballastless track of claim 1, wherein the FBG temperature sensor and the FBG strain sensor are arranged at the same distance from the upper surface of the sleeper block.
6. The self-sensing concrete filled steel tube sleeper structure suitable for the ballastless track of claim 1, wherein at least one FBG strain sensor and one FBG temperature sensor are respectively arranged in the first sleeper concrete block and the second sleeper concrete block.
7. The self-sensing concrete filled steel tube sleeper structure suitable for the ballastless track of claim 1, wherein the first sleeper concrete block and the second sleeper concrete block are respectively provided with one FBG temperature sensor and are symmetrically arranged.
8. The self-sensing concrete filled steel tube sleeper structure suitable for the ballastless track of claim 1, wherein two FBG strain sensors are respectively arranged in the first sleeper concrete block and the second sleeper concrete block and are symmetrically arranged.
9. The self-sensing concrete filled steel tube sleeper structure suitable for the ballastless track of any one of claims 1-8, wherein a steel mesh sheet or a stirrup is arranged in each of the first sleeper concrete block and the second sleeper concrete block.
10. The self-sensing concrete filled steel tube sleeper structure suitable for the ballastless track of any one of claims 1-8, wherein the pipe concrete structure comprises two or three, corresponding hollow steel tubes are two or three, and the sensing optical cable passes through one of the hollow steel tubes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223316182.2U CN218812902U (en) | 2022-12-08 | 2022-12-08 | Self-sensing concrete filled steel tube sleeper structure suitable for ballastless track |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223316182.2U CN218812902U (en) | 2022-12-08 | 2022-12-08 | Self-sensing concrete filled steel tube sleeper structure suitable for ballastless track |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218812902U true CN218812902U (en) | 2023-04-07 |
Family
ID=87277292
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223316182.2U Active CN218812902U (en) | 2022-12-08 | 2022-12-08 | Self-sensing concrete filled steel tube sleeper structure suitable for ballastless track |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218812902U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117871835A (en) * | 2024-03-11 | 2024-04-12 | 武汉理工大学 | Intelligent concrete, self-sensing method and device for intelligent concrete and storage medium |
-
2022
- 2022-12-08 CN CN202223316182.2U patent/CN218812902U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117871835A (en) * | 2024-03-11 | 2024-04-12 | 武汉理工大学 | Intelligent concrete, self-sensing method and device for intelligent concrete and storage medium |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN218812902U (en) | Self-sensing concrete filled steel tube sleeper structure suitable for ballastless track | |
| CN102108657B (en) | Method and device for monitoring state of ballastless track structure through fibber bragg grating sensing | |
| CN101830237A (en) | Safe and real-time detection system and method of heavy haulage lines based on optical fiber sensor network | |
| CN101397021A (en) | Vehicle running monitoring system based on optical fibre grating | |
| CN101376394B (en) | Vehicle derailing early warning method based on steel rail deformation / stress parameters | |
| CN103031787A (en) | Method and device for fully automatically and accurately monitoring changes of geometric parameters of track | |
| CN102092406A (en) | Optical fiber grating sensed train wheel tread state online monitoring system | |
| CN101672687B (en) | Device for testing railway wagon overloading and unbalance loading by foundationless-tunnel fiber and method | |
| CN106885529A (en) | A kind of long-distance distributed optical fiber spatial attitude monitors sensor and engineering implementation method | |
| Peng et al. | Wayside wheel-rail vertical contact force continuous detecting method and its application | |
| CN113898372A (en) | Full life cycle health monitoring system of deep tunnel of sewage | |
| CN108612058A (en) | A kind of concrete dam distributed temperature measuring optical fiber bifilar " zigzag " leads to storehouse burial and construction method | |
| CN105783777B (en) | The linear on-Line Monitor Device of railroad track and method based on optical fiber grating sensing | |
| Wang et al. | Railway track performance monitoring and safety warning system | |
| CN113124767B (en) | Automatic monitoring device and monitoring method for long-distance settlement deformation of tunnel | |
| CN207208071U (en) | A kind of rail traffic platform gauge detects dolly | |
| CN205688663U (en) | A kind of intelligent reinforcing bar based on FBG | |
| CN205860999U (en) | A kind of external prestressing based on FBG monitoring system | |
| CN206362475U (en) | A kind of smart stay cable with cable force measurement structure | |
| CN201951493U (en) | Fiber grating sensing train wheel tread on-line monitoring device | |
| CN203144853U (en) | Full-automatic precision monitoring device for geometric parameter variation | |
| CN114543967A (en) | Railway bridge section track disease monitoring method and system based on combination of grating array and video monitoring | |
| CN217541824U (en) | Road slab staggering deformation monitoring device | |
| CN114228786A (en) | Plate-type ballastless track, plate joint dislocation monitoring system and health monitoring method thereof | |
| CN2378258Y (en) | Railway wheel flat scar signal collecting device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240820 Address after: 430063 No.745, Heping Avenue, Yangyuan, Wuhan, Hubei Province Patentee after: CHINA RAILWAY SIYUAN SURVEY AND DESIGN GROUP Co.,Ltd. Country or region after: China Patentee after: CHINA RAILWAY CONSTRUCTION Corp.,Ltd. Address before: 430063 No.745, Heping Avenue, Yangyuan, Wuhan, Hubei Province Patentee before: CHINA RAILWAY SIYUAN SURVEY AND DESIGN GROUP Co.,Ltd. Country or region before: China |