CN215800689U - Self-leveling steel-concrete combined unit and self-leveling steel-concrete combined track - Google Patents

Abstract

The utility model discloses a self-leveling steel-concrete combined unit and a self-leveling steel-concrete combined track, which are sequentially arranged at intervals along the length direction of a base plate to install, support and level a steel rail, and comprise: the steel rail leveling device comprises a prefabricated steel-concrete rail unit prefabricated in a factory and a self-leveling anchor-buckling system for leveling a steel rail; the lower end of the self-leveling anchor fastening system is embedded in the base plate, and the upper end of the self-leveling anchor fastening system penetrates through the prefabricated steel-concrete track unit and then extends out, so that the prefabricated steel-concrete track unit and the base plate are connected into a detachable integral structure, and the height of the prefabricated steel-concrete track unit relative to the base plate is supported and adjusted. The self-leveling steel-concrete combined unit has the advantages of stable integral structure, few structural interfaces, less diseases and easy maintenance; the self-leveling anchor-buckling system has large adjustable quantity, strong capability of adapting to a lower supporting structure and environment, and is particularly suitable for being laid on large-deformation supporting structures such as a large-span bridge.

Description

Self-leveling steel-concrete combined unit and self-leveling steel-concrete combined track

Technical Field

The utility model relates to the technical field of rail transit, in particular to a self-leveling steel-concrete combined unit. In addition, the utility model also relates to a self-leveling steel-concrete combined rail with the self-leveling steel-concrete combined unit.

Background

The development of the high-speed rail technology in China is from endless to strong, and through four stages and more than 20 years of continuous efforts, the high-speed rail technology in China becomes the country with the most comprehensive technology, the strongest innovation capability, the longest operation mileage, the fastest operation speed and the largest building scale in the world. By the end of 2020, the operating mileage of high-speed railways in China breaks through 3.5 kilometers, and according to 2016 (year).) in medium-long term railway network planning and fifteen (year twelve) in comprehensive transportation system planning), high-speed railway construction of a certain scale is continued in future in China, the scale of the high-speed railways reaches 3.8 kilometers by 2025, and the scale of the high-speed railways reaches about 4.5 kilometers in a long term. In the compendium for construction of the strong traffic nation published by the State Council and Central administration in 2019, higher requirements are put forward for future rail traffic development in China, namely, traffic which is safer, more reliable, more economical, more efficient, more comfortable, more convenient, more energy-saving and more environment-friendly is provided for people. High-speed rail has been developed unprecedentedly in other countries around the world, and at present, in addition to the countries such as japan, france, germany, italy, spain, belgium and the like which have opened high-speed rail, more than 10 countries are building high-speed rail, more than 20 countries are planning high-speed rail, and high-speed rail transit system has become a plurality of priority development plans in the world. With the implementation of the advices of 'Panasia railway' and 'one-way-by-one' and the like, the strategy of 'going out' of high-speed rail in China is further accelerated, and valuable opportunities are created for developing the international market of the high-speed rail in China. Therefore, the development of the high-speed railway construction technology research is the urgent need of 'independent innovation', 'going away', 'continuous lead to the development of the world high-speed railway' in China.

The ballastless track structure has become a main track structure type of a high-speed railway due to the advantages of high smoothness, high stability, less maintenance and the like, and the common structure comprises a track plate, a filling layer, a concrete base or a supporting layer. At present, except that the track plate is prefabricated in a factory, other parts of the slab ballastless track structure of the high-speed railway, such as a bed plate and a filling layer, are manufactured in a cast-in-place mode, and the track structure is constructed in a reverse method, namely, a concrete base or a supporting layer is poured firstly, then the filling layer is formed between the prefabricated track plate and the concrete base or the supporting layer through pouring and filling so as to connect the track plate and the concrete base or the supporting layer, then the track plate is finely adjusted firstly, and then the slab lower adjusting layer is poured. The vertical multilayer and longitudinal heterogeneous belt-shaped structure system has the characteristics of large difference of building material properties, multiple structural layers, complex service environment and the like, and has the following problems in the long-term operation process:

firstly, the traditional construction method of the high-speed railway track structure has the problems of high difficulty in precision control, poor quality stability, high construction cost and the like due to large workload of field wet operation, easily causes construction quality hidden danger, and cannot carry out quick assembly type intelligent construction;

secondly, the concrete base and the cement emulsified asphalt mortar layer/self-compacting concrete in the prefabricated plate type ballastless track are constructed on site, the construction efficiency is influenced by more working procedures, and the durability of the cement emulsified asphalt mortar layer is poor; the adjustable amount of the filling layer is small, the filling layer is weak in adapting to a lower supporting structure and environment, and the filling layer is difficult to lay on a large-deformation or special supporting foundation;

the track slab, the filling layer and the base plate are large in attribute difference of building materials and multiple in structural hierarchy, so that the multi-layer track structure is difficult to cooperatively work during service, the interface damage problem is easy to occur, the whole force transmission path of the structure is undefined, and the stability and the service life of the track structure during service are further influenced;

and fourthly, due to the composition and the construction method of the conventional track structure, the track structure is difficult to maintain and repair, difficult to replace and high in maintenance cost.

In conclusion, China makes an important breakthrough in the aspect of ballastless track structures and provides guarantees for the strategy of rapid development and 'going away' of high-speed railways in China, but because the research and development and operation time of ballastless track structure systems in China are short, the traditional track form and construction method cannot meet the requirements of track structure construction with high precision, few diseases, energy conservation, environmental protection and intelligence, and the selection range of completely independently innovative track structure forms is limited. Therefore, a full-life design concept, intelligent construction, operation and maintenance technology and the like based on safety service are urgently needed, and research on a novel track structure and a construction technology thereof is deeply developed to form a novel assembly type track structure with independent intellectual property rights and an intelligent construction complete technology thereof.

SUMMERY OF THE UTILITY MODEL

The utility model provides a self-leveling steel-concrete combined unit and a self-leveling steel-concrete combined track, which aim to solve the problems of large workload and poor quality stability of on-site wet operation during construction of the conventional ballastless track structure; the adjustable amount of the filling layer is small, and the filling layer is weak in adapting to a lower supporting structure and environment; interface damage is easy to occur, and the stability and the service life of the track structure during service are poor; the maintenance and the repair of the track slab are difficult, the replacement is difficult and the like.

The technical scheme adopted by the utility model is as follows:

a self leveling steel-concrete combined unit is used for being sequentially arranged at intervals along the length direction of a base plate so as to install, support and level a steel rail, and comprises: a prefabricated steel-concrete track unit for mounting and supporting a steel rail, and a self-leveling anchor-buckling system for leveling the steel rail; the prefabricated steel-concrete track unit is prefabricated and molded by a factory; the lower end of the self-leveling anchor system is embedded in the base plate, and the upper end of the self-leveling anchor system penetrates through the prefabricated steel-concrete track unit and then extends out of the base plate, so that the prefabricated steel-concrete track unit and the base plate are connected into a detachable integral structure, and the height of the prefabricated steel-concrete track unit relative to the base plate is adjusted.

Further, the prefabricated steel-concrete track unit comprises a track plate, a prefabricated steel structure and a rail bearing platform for installing and supporting a steel rail; the prefabricated assembly type steel structure is arranged along the length direction of the base plate, and the track plate is supported on the prefabricated assembly type steel structure and is prefabricated into a whole with the prefabricated assembly type steel structure; the lower end of the self-leveling anchor fastening system is embedded in the base plate, and the upper end of the self-leveling anchor fastening system sequentially penetrates through the prefabricated assembled steel structure and the track plate and then extends out of the base plate, so that the base plate, the prefabricated assembled steel structure and the track plate are connected into a detachable integral structure, and the prefabricated assembled steel structure is supported on the base plate; the rail bearing platform is sequentially arranged on the upper surface of the track plate at intervals along the length direction of the track plate, and the steel rail is supported on the rail bearing platform and is fixed through a first fastener group connected to the rail bearing platform.

Furthermore, the prefabricated steel structure is a steel truss which comprises a plurality of node upright columns arranged vertically at intervals, a connecting fence connected between every two adjacent node upright columns and first studs used for connecting the steel truss and the track slab; the track plate is supported at the top end of the steel truss and is connected with the steel truss into a whole through a first stud.

Furthermore, the prefabricated steel structure is an I-shaped steel structure, and the I-shaped steel structure comprises two supporting steel belts arranged in parallel at intervals along the width direction of the base plate, node upright columns sequentially connected to the supporting steel belts at intervals along the length direction of the supporting steel belts, a first diaphragm plate connected between the two supporting steel belts, and second studs for connecting the supporting steel belts and the track plate; the supporting steel belt extends along the length direction of the base plate; the track plate is supported at the top ends of the two supporting steel belts and is connected with the corresponding supporting steel belts into a whole through second studs.

Furthermore, the prefabricated steel structure is a steel box, and the steel box comprises two supporting steel boxes arranged in parallel at intervals along the width direction of the base plate, node upright columns sequentially connected to the supporting steel boxes at intervals along the length direction of the supporting steel boxes, and third studs for connecting the supporting steel boxes and the track plate; the supporting steel box extends along the length direction of the base plate; the track plate is supported at the top ends of the two supporting steel boxes and is connected with the corresponding supporting steel boxes into a whole through third studs.

Furthermore, the self-leveling anchoring system is arranged corresponding to each node upright post and comprises an integrated system base, a bolt anchor leveling anchor rod, a first adjusting spiral ring and a second fastening piece, wherein the integrated system base is pre-embedded in a base plate; the lower end of the bolt anchor leveling anchor rod is fixed with the integrated system base, and the upper end of the bolt anchor leveling anchor rod sequentially penetrates through the correspondingly arranged node upright posts and the track plates and then extends out; the first adjusting spiral ring is positioned between the prefabricated steel structure and the base plate, and the prefabricated steel structure is supported on the first adjusting spiral ring; the second fastener is pressed and fixed on the upper surface of the track plate through the bolt anchor leveling anchor rod.

Furthermore, the self-leveling anchor-buckling system comprises a bolt-anchor system and a self-leveling system which are arranged corresponding to each node upright post; the bolt-anchor system comprises a bolt-anchor system base fixedly arranged in the correspondingly arranged node upright post, a bolt-anchor spiral anchor rod and a third fastener in threaded connection with the excircle of the bolt-anchor spiral anchor rod, the lower end of the bolt-anchor spiral anchor rod is fixed with the bolt-anchor system base, the upper end of the bolt-anchor spiral anchor rod sequentially penetrates through the node upright post and the track plate and then extends out, and the third fastener is tightly pressed and fixed on the upper surface of the track plate through the bolt-anchor spiral anchor rod; the self-leveling system comprises a self-leveling system base pre-embedded in a base plate, a self-leveling screw rod and a second adjusting spiral ring in threaded connection with the outer circle of the self-leveling screw rod, the lower end of the self-leveling screw rod is fixed with the self-leveling system base, the upper end of the self-leveling screw rod upwards extends into a correspondingly arranged node upright post, the second adjusting spiral ring is located between the prefabricated assembly type steel structure and the base plate, and the prefabricated assembly type steel structure is supported on the second adjusting spiral ring.

Furthermore, the self-leveling anchor-buckling system comprises a bolt-anchor system and a self-leveling system which are arranged corresponding to different node columns; the bolt-anchor system comprises a bolt-anchor system base fixedly arranged in the correspondingly arranged node upright post, a bolt-anchor spiral anchor rod and a third fastener in threaded connection with the excircle of the bolt-anchor spiral anchor rod, the lower end of the bolt-anchor spiral anchor rod is fixed with the bolt-anchor system base, the upper end of the bolt-anchor spiral anchor rod sequentially penetrates through the node upright post and the track plate and then extends out, and the third fastener is tightly pressed and fixed on the upper surface of the track plate through the bolt-anchor spiral anchor rod; the self-leveling system comprises a self-leveling system base pre-embedded in a base plate, a self-leveling screw rod and a second adjusting spiral ring in threaded connection with the outer circle of the self-leveling screw rod, the lower end of the self-leveling screw rod is fixed with the self-leveling system base, the upper end of the self-leveling screw rod upwards extends into a correspondingly arranged node upright post, the second adjusting spiral ring is located between the prefabricated assembly type steel structure and the base plate, and the prefabricated assembly type steel structure is supported on the second adjusting spiral ring.

Furthermore, the prefabricated steel structure also comprises a filling column filled in the node upright column; the self-leveling anchoring system is arranged through the filling column.

According to another aspect of the present invention, there is also provided a self-leveling steel-concrete composite rail, comprising: the base plate is formed on the support foundation in a cast-in-place mode, extends along the running direction of the train and plays a supporting role and is used for accurately controlling the height and the smoothness of the self-leveling steel-concrete combined track in the casting forming process; the self-leveling steel-concrete combined units are sequentially arranged along the length direction of the base plate at intervals, and are prefabricated and molded by factories; and a steel rail for slidably supporting the train is also supported on the self-leveling steel-concrete combined unit.

The utility model has the following beneficial effects:

in the self-leveling steel-concrete combined unit, the self-leveling steel-concrete combined unit is arranged to install, support and level a steel rail, wherein the prefabricated steel-concrete track unit is used for installing and supporting the steel rail, the self-leveling anchor system is used for adjusting the supporting height of the prefabricated steel-concrete track unit relative to the base plate, and the prefabricated steel-concrete track unit and the base plate can be connected and fixed into a detachable integral structure through the self-leveling anchor system; on the other hand, the prefabricated steel-concrete track unit and the base plate can be connected and fixed into a whole through the self-leveling buckling anchor system, so that the influence of the property difference of building materials between the prefabricated steel-concrete track unit and the base plate on the connection stability between the prefabricated steel-concrete track unit and the base plate is small, the track unit structure can well cooperate during service, the service function of each layer of structure meets the design requirement, the whole force transmission path of the structure is clear and definite, and the track structure has good stability and long service life during service

In the self-leveling steel-concrete combined unit, the supporting height and the smoothness of the prefabricated steel-concrete track unit can be adjusted through the self-leveling anchor-buckling system, so that the integral height and the smoothness of the track structure can be adjusted in a self-leveling mode according to the installation environment, the self-leveling anchor-buckling system is simple in adjusting operation and easy to control precision, the prefabricated steel-concrete track unit and the self-leveling anchor-buckling system can be prefabricated by a factory, the manufacturing precision is high, the installation and the assembly are simple, and the prefabricated steel-concrete track unit can be adjusted in a self-leveling mode according to the actual pouring situation of a base plate to make up for the pouring defect of the base plate.

In addition to the objects, features and advantages described above, other objects, features and advantages of the present invention are also provided. The present invention will be described in further detail below with reference to the drawings.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the utility model and, together with the description, serve to explain the utility model and not to limit the utility model. In the drawings:

FIG. 1 is a schematic three-dimensional structure of a first embodiment of a self-leveling steel-concrete composite unit according to a preferred embodiment of the present invention;

FIG. 2 is a schematic three-dimensional structure of the steel truss of FIG. 1;

FIG. 3 is a three-dimensional exploded schematic view of a first embodiment of the self-leveling tie-down anchor system of FIG. 1;

FIG. 4 is another schematic three-dimensional structure of the steel truss of FIG. 1;

FIG. 5 is a three-dimensional exploded schematic view of a third embodiment of the self-leveling tie-down anchor system of FIG. 1;

FIG. 6 is a schematic three-dimensional structure of the self-leveling steel-concrete combined unit of FIG. 1 built on a roadbed;

FIG. 7 is a schematic three-dimensional structure of the self-leveling steel-concrete combined unit of FIG. 1 built on a bridge;

FIG. 8 is a schematic three-dimensional structure of the self-leveling steel-concrete combined unit of FIG. 1 built on a tunnel;

FIG. 9 is a schematic three-dimensional structure of a second embodiment of a self-leveling steel-concrete composite unit according to a preferred embodiment of the present invention;

FIG. 10 is a schematic three-dimensional structure of the I-steel structure of FIG. 9;

FIG. 11 is a schematic three-dimensional structure of a third embodiment of a self-leveling steel-concrete composite rail according to a preferred embodiment of the present invention;

FIG. 12 is a schematic three-dimensional structure of the steel box of FIG. 11;

fig. 13 is a schematic three-dimensional structure of a fourth embodiment of a self-leveling assembled steel-concrete composite rail structure according to a preferred embodiment of the present invention;

FIG. 14 is a schematic three-dimensional exploded view of FIG. 13;

FIG. 15 is a schematic three-dimensional structure of a fifth embodiment of a self-leveling assembled steel-concrete composite track structure according to the preferred embodiment of the present invention;

fig. 16 is a schematic three-dimensional exploded view of fig. 15.

Description of the figures

1. A steel rail; 2. a first fastener group; 3. prefabricating a steel-concrete track unit; 301. a rail bearing platform; 302. a track plate; 303. a steel truss; 3031. a first stud; 3032. an upper chord; 3033. a lower chord; 3034. a web member; 3035. a node column; 3036. Filling a column; 304. an I-shaped steel structure; 3041. a second stud; 3042. an upper flange plate; 3043. a lower flange plate; 3044. a first web; 3045. a stiffening rib; 3046. a first diaphragm plate; 305. a steel box; 3051. a third stud; 3052. a top plate; 3053. A base plate; 3054. a second web; 3055. a second diaphragm plate; 4. a self-leveling anchor-in-place system; 401. a second fastener; 402. Bolting and leveling the anchor rod; 403. a first adjusting coil; 404. an integrated system base; 41. a bolt and anchor system; 411. a third fastener; 412. bolting and anchoring the spiral anchor rod; 413. a bolt anchor system base; 42. a self-leveling system; 421. a self-leveling screw; 422. a second adjusting coil; 423. a self-leveling system base; 424. a boot cover; 425. a bolt; 426. leveling bolts; 427. leveling the base plate; 428. leveling the filling layer; 5. a base plate; 6. a roadbed; 7. a box girder; 8. a support; 9. a bridge pier; 10. and (4) tunneling.

Detailed Description

The embodiments of the utility model will be described in detail below with reference to the accompanying drawings, but the utility model can be embodied in many different forms, which are defined and covered by the following description.

Referring to fig. 1, 9 and 11, a preferred embodiment of the present invention provides a self-leveling steel-concrete combined unit for being sequentially arranged at intervals along the length direction of a foundation plate 5 to mount, support and level a steel rail 1, the self-leveling steel-concrete combined unit comprising: a prefabricated steel-concrete track unit 3 for mounting and supporting the steel rail 1, and a self-leveling anchor-buckled system 4 for leveling the steel rail 1; the prefabricated steel-concrete track unit 3 is prefabricated and molded by a factory; the lower end of the self-leveling anchor fastening system 4 is embedded in the base plate 5, and the upper end of the self-leveling anchor fastening system 4 penetrates through the prefabricated steel-concrete track unit 3 and then extends out, so that the prefabricated steel-concrete track unit 3 and the base plate 5 are connected into a detachable integral structure, and the self-leveling assembly type steel-concrete combined track structure is leveled.

In the self-leveling steel-concrete combined unit, the self-leveling steel-concrete combined unit is arranged to install, support and level a steel rail 1, wherein a prefabricated steel-concrete track unit 3 is used for installing and supporting the steel rail 1, a self-leveling buckle anchor system 4 is used for supporting the prefabricated steel-concrete track unit 3 and adjusting the supporting height of the prefabricated steel-concrete track unit 3 relative to a base plate 5, and the prefabricated steel-concrete track unit 3 and the base plate 5 can be connected and fixed into a detachable integral structure through the self-leveling buckle anchor system 4, the integral structure is simple to connect and fix and is easy to disassemble and assemble and maintain, so the prefabricated steel-concrete track unit 3 of the track unit is simple to maintain and repair, simple to replace, low in maintenance cost and short in maintenance required period, the labor intensity of workers is low; on the other hand, the prefabricated steel-concrete track unit 3 and the base plate 5 can be connected and fixed into a whole through the self-leveling buckling anchor system 4, so that the influence of the property difference of the building materials between the prefabricated steel-concrete track unit 3 and the base plate 5 on the connection stability between the prefabricated steel-concrete track unit 3 and the base plate 5 is small, the track unit structure can well cooperate during service, the service function of each layer of structure meets the design requirement, the whole force transmission path of the structure is clear and definite, and further the track structure is good in stability and long in service life during service.

In the self-leveling steel-concrete combined unit, the supporting height and the smoothness of the prefabricated steel-concrete track unit 3 can be adjusted through the self-leveling anchor-buckling system 4, further self-adaptively adjusting the height and the smoothness of the whole track structure according to the installation environment, the self-leveling anchor-buckling system 4 is simple in adjustment operation and easy in precision control, and the prefabricated steel-concrete track unit 3 and the self-leveling buckling anchor system 4 can be prefabricated by factories, the manufacturing precision is high, the installation and the assembly are simple, and the prefabricated steel-concrete track unit 3 can be adaptively adjusted according to the actual pouring situation of the base plate 5 to make up for the pouring defect of the base plate 5, so that the self-leveling steel-concrete combined unit is simple to finely adjust and install, high in installation precision, simple in construction process and strong in environmental adaptability.

Alternatively, as shown in fig. 2, 9 and 11, the precast steel-concrete track unit 3 includes a precast concrete track slab 302 and a precast fabricated steel structure, which are combined into a unitary structure by a stud connection within the precast fabricated steel structure, and the precast steel-concrete track unit 3 further includes a rail support 301 for installing and supporting the steel rail 1. The prefabricated steel structure is arranged along the length direction of the base plate 5, and the track plate 302 is supported on the prefabricated steel structure and is prefabricated integrally with the prefabricated steel structure. The lower end of the self-leveling anchor fastening system 4 is embedded in the base plate 5, and the upper end of the self-leveling anchor fastening system 4 sequentially penetrates through the prefabricated steel structure and the track plate 302 and then extends out, so that the base plate 5, the prefabricated steel structure and the track plate 302 are connected into a detachable integral structure. The rail support bases 301 are sequentially disposed on the upper surface of the rail plate 302 at intervals along the length direction of the rail plate 302, and the rails 1 are supported on the rail support bases 301 and fixed by the first fastener groups 2 connected to the rail support bases 301. In this alternative, the prefabricated steel-concrete track unit 3 includes the track slab 302 and the prefabricated steel structure which are prefabricated and molded as one body in a factory, and compared with the fully-cast track slab structure, the prefabricated steel-concrete track unit 3 of the present invention has a small self-weight, can save materials, is highly economical, and facilitates later assembly with the foundation plate 5.

In the alternative, the track plate 302 and the track bearing platform 301 are prefabricated and molded by a factory, so that the processing is simple and the manufacturing precision is high. The number of the first fastener groups 2 is two, and the two first fastener groups 2 are respectively arranged on two sides of the steel rail 1; each group of first fastener groups 2 comprises a screw rail nail and a flat gasket for fastening a steel rail, an elastic strip for preventing the screw rail nail from rotating after being installed, an insulating block for fastening the edge of the lower end of the steel rail, a gauge baffle for abutting against the steel rail 1 and the inner groove of the rail bearing platform 301, a lower rail base plate, an iron base plate, a lower iron base plate elastic base plate, an iron base plate lower heightening base plate and a pre-buried sleeve, wherein the screw rail nail penetrates through the lower rail base plate, the iron base plate, the lower iron base plate elastic base plate and the lower iron base plate heightening base plate and then is screwed into the pre-buried sleeve of the corresponding rail bearing platform 301, and the steel rail is fastened through the insulating block and the elastic strip; the first fastener is a fastener commonly used in the market.

In this alternative, the first embodiment of the prefabricated steel structure, as shown in fig. 2, is a steel truss 303, and the steel truss 303 includes a plurality of node columns 3035 vertically spaced apart, a connection fence connected between two adjacent node columns 3035, and a first stud 3031 for connecting the steel truss 303 and the track plate 302. The track plate 302 is supported at the top end of the steel truss 303 and is connected with the steel truss 303 into a whole through a first bolt 3031. In a specific embodiment of this alternative, as shown in fig. 2, a plurality of node upright columns 3035 are arranged in two rows along the length direction of the prefabricated steel structure, and each row includes a plurality of node upright columns 3035 arranged at intervals in sequence; the connecting fence comprises an upper chord 3032 connected with two adjacent node upright columns 3035, a lower chord 3033 which is arranged parallel to the upper chord 3032 and connected with the two adjacent node upright columns 3035, and a plurality of web members 3034 which are obliquely arranged and two ends of which are respectively connected with the two adjacent node upright columns 3035; the upper end of the first stud 3031 is embedded in the track slab 302 above, and the lower end of the first stud 3031 penetrates through the corresponding upper chord 3032 and then is in threaded connection with the upper chord 3032, so that the prefabricated steel structure and the corresponding track slab 302 can be detachably connected and fixed.

In this alternative, the second embodiment of the prefabricated steel structure, as shown in fig. 10, is an i-steel structure 304, and the i-steel structure 304 includes two supporting steel strips arranged in parallel and at intervals in the width direction of the base plate 5, node columns (not shown) sequentially connected to the supporting steel strips at intervals in the length direction of the supporting steel strips, first diaphragms 3046 connected between the two supporting steel strips, and second studs 3041 for connecting the supporting steel strips and the track plate 302. The support steel strips extend along the length of the bed plate 5. The track plate 302 is supported on the top ends of the two support steel belts and is connected with the corresponding support steel belts into a whole through the second stud 3041. In this alternative, as shown in fig. 10, each supporting steel strip includes an upper flange 3042 extending in the length direction of the base plate 5, a lower flange 3043 arranged parallel to the upper flange 3042 at an interval, a first web 3044 vertically connected between the upper flange 3042 and the lower flange 3043, and a plurality of stiffening ribs 3045 connecting the upper flange 3042, the lower flange 3043, and the first web 3044; two ends of the first diaphragm 3046 are respectively and vertically connected with two first webs 3044 supporting the steel belts; the upper end of the second stud 3041 is embedded in the track slab 302 above, and the lower end of the second stud 3041 is threaded with the upper flange 3042 after passing through the corresponding upper flange 3042, so as to detachably connect and fix the prefabricated steel structure and the corresponding track slab 302.

In this alternative, a third embodiment of the prefabricated steel structure, as shown in fig. 12, the prefabricated steel structure is a steel box 305, and the steel box 305 includes two supporting steel boxes arranged in parallel at intervals in the width direction of the foundation plate 5, node columns (not shown) sequentially connected to the supporting steel boxes at intervals in the length direction of the supporting steel boxes, and third studs 3051 for connecting the supporting steel boxes and the track plate 302. The supporting steel box extends along the length of the foundation plate 5. The track plate 302 is supported at the top ends of the two supporting steel boxes and is connected with the corresponding supporting steel boxes into a whole through a third bolt 3051. In this alternative, as shown in fig. 12, each supporting steel box includes a top plate 3052 extending in the length direction of the base plate 5, a bottom plate 3053 arranged in parallel with the top plate 3052 at a spacing, and two second webs 3054 vertically connecting the top plate 3052 and the bottom plate 3053; the second diaphragm plate 3055 is vertically connected between two adjacent second web plates 3054; the number of the top plates 3052 is two, and the two second webs 3054 are respectively connected with one top plate 3052 which is correspondingly arranged; the upper end of the third stud 3051 is embedded in the track plate 302 above, and the lower end of the third stud 3051 penetrates through the corresponding top plate 3052 and then is in threaded connection with the top plate 3052, so that the prefabricated steel structure and the corresponding track plate 302 can be detachably connected and fixed.

Alternatively, in the first, second and third embodiments of the prefabricated assembled steel structures, the prefabricated assembled steel structures are each connected with a self-leveling anchor-buckling system 4, and the self-leveling anchor-buckling system 4 has three different embodiments, namely, a first embodiment of the self-leveling anchor-buckling system 4, a second embodiment of the self-leveling anchor-buckling system 4 and a third embodiment of the self-leveling anchor-buckling system 4. Preferably, as shown in fig. 3, in the above first, second, and third embodiments of the prefabricated steel structure, the prefabricated steel structure further includes a packing post 3036 packed in the node upright post 3035. A self-leveling button anchor system 4 is disposed through the packed column 3036. The filler column 3036 is a flexible filler column prepared from at least one of polyurethane, epoxy-modified polyurethane and polyurethane-modified epoxy materials, and is used for flexibly connecting the self-leveling buckle anchor system 4 with a corresponding node upright column, damping and buffering, and preventing rigid collision between the self-leveling buckle anchor system 4 and the node upright column, so that the service life and the service safety of the self-leveling buckle anchor system 4 and a prefabricated assembly type steel structure are improved.

In this alternative, as shown in fig. 2 and 3, the first embodiment of the self-leveling anchor-fastening system 4, the self-leveling anchor-fastening system 4 is disposed corresponding to each node pillar 3035, and includes an integrated system base 404 pre-embedded in the base plate 5, a bolt-anchor leveling anchor rod 402, and a first adjusting coil 403 and a second fastener 401 threaded on an outer circle of the bolt-anchor leveling anchor rod 402. The lower end of the bolt anchor leveling anchor rod 402 is fixed with the integrated system base 404, and the upper end of the bolt anchor leveling anchor rod 402 sequentially penetrates through the correspondingly arranged node upright post 3035 and the track plate 302 and then extends out. The first adjusting coil 403 is located between the prefabricated steel structure and the foundation plate 5, and the prefabricated steel structure is supported on the first adjusting coil 403. The second fastener 401 is fixed on the upper surface of the track plate 302 by bolting the leveling anchor 402. In this alternative embodiment, the second fastener 401 is a commercially available fastener. In the first embodiment of the self-leveling fastening anchor system 4 of the utility model, the base plate 5, the prefabricated steel structure and the corresponding track plate 302 are connected and fixed into a detachable integral structure through the bolt anchor leveling anchor rod 402 and the second fastener 401, and the three are simple in connection operation, stable and reliable in structure; on the other hand, the height of the prefabricated steel-concrete track unit 3 is adjusted by adjusting the position of the first adjusting screw ring 403 relative to the bolt anchor leveling anchor rod 402, so that the overall height and smoothness of the combined track are adjusted, the adjusting operation is simple and easy to implement, and the adaptability to the environment is strong. Preferably, a gasket penetrating through the outer circle of the bolt anchor leveling anchor rod 402 can be used to replace the first adjusting helicoidal ring 403, so that the prefabricated steel structure is supported on the gasket, the height and the smoothness of the whole combined track can be adjusted adaptively by increasing or decreasing the gaskets with different thicknesses, the adjusting operation is simple and easy to implement, and the adaptability to the environment is strong.

In this alternative, a second embodiment of the self-leveling mooring system 4, not shown, the self-leveling mooring system 4 includes a bolt-and-anchor system 41 and a self-leveling system 42 provided for each node column, that is, each node column is provided with the bolt-and-anchor system 41 and the self-leveling system 42 therein. Bolt system 41 is including the fixed bolt system base 413 that sets up in the node stand that corresponds the setting, bolt anchor spiral stock 412, and threaded connection is in the third fastener 411 on bolt anchor spiral stock 412 excircle, and the lower extreme of bolt anchor spiral stock 412 is fixed with bolt anchor system base 413, and bolt anchor spiral stock 412's upper end is worn to establish node stand and track board 302 in proper order and is stretched out, and third fastener 411 compresses tightly through bolt anchor spiral stock 412 and is fixed in on the upper surface of track board 302. The self-leveling system 42 comprises a self-leveling system base 423 pre-embedded in the base plate 5, a self-leveling screw 421 and a second adjusting helicoid 422 in threaded connection with the outer circle of the self-leveling screw 421, the lower end of the self-leveling screw 421 is fixed with the self-leveling system base 423, the upper end of the self-leveling screw 421 extends upwards into a correspondingly arranged node upright, the second adjusting helicoid 422 is positioned between the prefabricated assembly steel structure and the base plate 5, and the prefabricated assembly steel structure is supported on the second adjusting helicoid 422. In this alternative embodiment, the third fastening member 411 is a commercially available fastening member. In the second embodiment of the self-leveling anchoring system 4 of the present invention, the self-leveling system base 423 and the self-leveling screw 421 connect the base plate 5 and the prefabricated assembled steel structure into a whole, and the bolt-anchoring system base 413, the bolt-anchoring screw bolt 412 and the third fastener 411 connect the prefabricated assembled steel structure and the corresponding track plate 302 into a detachable whole structure, and further connect and fix the base plate 5 and the prefabricated steel-concrete track unit 3 into a detachable whole structure through the bolt-anchoring system 41 and the self-leveling system 42, such that the connection operation is simple, and the structure is stable and reliable; on the other hand, the height of the prefabricated steel-concrete track unit 3 is adjusted by adjusting the position of the second adjusting screw ring 422 relative to the self-leveling screw 421, so that the overall height and smoothness of the combined track are adjusted, the adjusting operation is simple and easy to implement, and the adaptability to the environment is strong. Preferably, a gasket penetrating through the outer circle of the self-leveling screw 421 can be used to replace the second adjusting screw 422, so that the prefabricated steel structure is supported on the gasket, the height and the smoothness of the whole combined track can be adjusted adaptively by increasing or decreasing the gaskets with different thicknesses, the adjusting operation is simple, the implementation is easy, and the adaptability to the environment is strong.

In this alternative, a third embodiment of the self-leveling mooring system 4, as shown in fig. 4 and 5, the self-leveling mooring system 4 includes a bolting system 41 and a self-leveling system 42, which are respectively disposed at different node columns, that is, in the plurality of node columns of the prefabricated steel-concrete track unit 3, the bolting system 41 is partially disposed, and the self-leveling system 42 is disposed at the other part. Bolt system 41 is including the fixed bolt system base 413 that sets up in the node stand that corresponds the setting, bolt anchor spiral stock 412, and threaded connection is in the third fastener 411 on bolt anchor spiral stock 412 excircle, and the lower extreme of bolt anchor spiral stock 412 is fixed with bolt anchor system base 413, and bolt anchor spiral stock 412's upper end is worn to establish node stand and track board 302 in proper order and is stretched out, and third fastener 411 compresses tightly through bolt anchor spiral stock 412 and is fixed in on the upper surface of track board 302. The self-leveling system 42 comprises a self-leveling system base 423 pre-embedded in the base plate 5, a self-leveling screw 421 and a second adjusting helicoid 422 in threaded connection with the outer circle of the self-leveling screw 421, the lower end of the self-leveling screw 421 is fixed with the self-leveling system base 423, the upper end of the self-leveling screw 421 extends upwards into a correspondingly arranged node upright, the second adjusting helicoid 422 is positioned between the prefabricated assembly steel structure and the base plate 5, and the prefabricated assembly steel structure is supported on the second adjusting helicoid 422. In this alternative embodiment, the third fastening member 411 is a commercially available fastening member. In the third embodiment of the self-leveling and fastening anchor system 4 of the present invention, the self-leveling system base 423 and the self-leveling screw 421 disposed in a part of the node columns connect the base plate 5 and the prefabricated assembled steel structure into a whole, and the bolt anchor system base 413, the bolt anchor screw anchor 412 and the third fastener 411 disposed in another part of the node columns connect the prefabricated assembled steel structure and the corresponding track plate 302 into a detachable whole structure, so that the base plate 5 and the prefabricated steel-concrete track unit 3 are connected and fixed into a detachable whole structure through the bolt anchor system 41 and the self-leveling system 42, and the connection operation is simple, and the structure is stable and reliable; on the other hand, the height of the prefabricated steel-concrete track unit 3 is adjusted by adjusting the position of the second adjusting screw ring 422 relative to the self-leveling screw 421, so that the overall height and smoothness of the combined track are adjusted, the adjusting operation is simple and easy to implement, and the adaptability to the environment is strong. Preferably, a gasket penetrating through the outer circle of the self-leveling screw 421 can be used to replace the second adjusting screw 422, so that the prefabricated steel structure is supported on the gasket, the height and the smoothness of the whole combined track can be adjusted adaptively by increasing or decreasing the gaskets with different thicknesses, the adjusting operation is simple, the implementation is easy, and the adaptability to the environment is strong.

In this alternative, a fourth embodiment of the self-leveling button anchor system 4, as shown in fig. 13 and 14, the self-leveling button anchor system 4 includes leveling bolts 426 for adjustment, and a leveling filler layer 428 for leveling; the leveling bolt 426 is screwed into the base plate 5 after penetrating through the bottom of the support steel belt or the support steel box; the leveling filler layer 428 is cast in place between the supporting steel strip or the supporting steel box and the foundation plate 5 when used for leveling the rail structure, so as to be used for leveling the rail structure. In the specific embodiment of this alternative, the bottom plate 3053 of the supporting steel box is wider, the bottom flange plate 3043 of the supporting steel strip is wider, the number of the leveling bolts 426 is multiple, and the multiple leveling bolts 426 are sequentially arranged at intervals along the length direction of the supporting steel box or the supporting steel strip, and are respectively arranged on two sides of the main structure of the supporting steel box or the supporting steel strip. During adjustment operation, the leveling bolts 426 at corresponding positions are correspondingly screwed according to the amount to be adjusted to enable the smoothness of the top surface of the combined track to meet requirements, and then concrete is poured on site at the bottom of the supporting steel belt or the supporting steel box to form a leveling filling layer 428, so that the adjustment operation of the smoothness of the top surface of the combined track is completed, the adjustment operation is simple, and the environmental suitability is high.

In this alternative, a fifth embodiment of the self-leveling anchor-clasping system 4, as shown in fig. 15 and 16, the self-leveling anchor-clasping system 4 comprises a leveling base plate 427 fixed to the bottom of the supporting steel box, a boot 424 vertically connected to the leveling base plate 427 and separately provided on both sides of the supporting steel box, a leveling bolt 426 for adjustment, a plug 425 for connecting the supporting steel box to the self-leveling anchor-clasping system 4, and a leveling filler 428 for leveling; the leveling bolt 426 is screwed into the base plate 5 after penetrating through the leveling backing plate 427; after the bolt 425 penetrates through the supporting steel box, two ends of the bolt are respectively inserted into the boot sleeves 424 on the corresponding sides; the leveling filler layer 428 is used for filling between the leveling backing plates 427 and the foundation plate 5 in situ when the rail structure is leveled, so as to level the rail structure. During adjustment operation, the bolt 425 is firstly taken down to separate the supporting steel box from the self-leveling buckling anchor system 4, then the leveling bolt 426 at the corresponding position is correspondingly screwed according to the amount required to be adjusted to enable the smoothness of the top surface of the combined track to meet requirements, then concrete is poured on site at the bottom of the supporting steel box to form a leveling filling layer 428, then the prefabricated steel-concrete track unit 3 is downwards installed in the position between the shoe sleeves 424, and finally the bolt 425 is inserted into the corresponding position, so that the adjustment operation of the smoothness of the top surface of the combined track is completed, the adjustment operation is simple, and the environmental suitability is high.

Referring to fig. 6 to 8, a preferred embodiment of the present invention also provides a self-leveling steel-concrete composite rail, including: the base plate 5 is formed on the supporting foundation in a cast-in-place mode, the base plate 5 extends along the running direction of the train, and the base plate 5 plays a supporting role and is used for accurately controlling the height and the smoothness of the self-leveling steel-concrete combined track in the casting forming process; the self-leveling steel-concrete combined units are sequentially arranged on the base plate 5 at intervals along the length direction of the base plate, and are prefabricated and molded by factories; and a steel rail 1 for slidably supporting the train is also supported on the self-leveling steel-concrete combined unit.

Before the self-leveling steel-concrete combined track is constructed, firstly, all the component structures of a prefabricated steel-concrete track unit 3 are prefabricated in a factory, all the component structures are assembled and connected to form the prefabricated steel-concrete track unit 3, and meanwhile, a self-leveling anchor-buckling system 4 is constructed; when the self-leveling steel-concrete combined track is constructed, firstly, a base plate 5 extending along the running direction of a train is cast on site on the supporting basis, and when the base plate 5 is cast, the fixed end of the constructed self-leveling buckle anchor system 4 is pre-embedded in the base plate 5, and the connecting end of the self-leveling buckle anchor system 4 extends upwards out of the base plate 5; then sequentially laying the prefabricated steel-concrete track units 3 on the base plate 5 at intervals along the length direction of the base plate 5, laying and fixing the steel rails 1 on the prefabricated steel-concrete track units 3, and enabling the connecting ends of the self-leveling anchoring systems 4 to penetrate through the prefabricated steel-concrete track units 3 and then extend upwards; and finally, screwing the self-leveling anchor fastening system 4, namely connecting and fixing the base plate 5 and the prefabricated steel-concrete track unit 3 into a detachable integral structure through the self-leveling anchor fastening system 4.

From the design concept, compared with the prior art that the concrete base and the track slab 302 are connected into a multi-layer composite or laminated structure through the filling layer filled between the concrete base and the track slab, when the self-leveling assembled steel-concrete combined track structure is constructed, the base slab 5 and the prefabricated steel-concrete track unit 3 are connected and fixed into an integral structure through the pre-embedded self-leveling buckling anchor system 4, the integral structure is stable in coordination working performance, the integral force transmission path is clear and definite, and further the track structure is good in stability and long in service life during service, the quality of the track structure can be maintained for a long time, and the conversion from the multi-layer composite/laminated structure to the integral cooperative work is realized.

Compared with the filling layer cast-in-place forming in the prior art, the self-leveling assembly type steel-concrete combined track has the advantages that the filling layer is omitted, so that not only are the interaction interfaces reduced, but also the field wet operation workload is reduced greatly, the material waste is less, the quality stability is good, the construction cost is lower, the hidden danger of construction quality is not easily caused, the steel-concrete combined track unit is designed in a standardized manner, is produced in a factory, is installed intelligently, and the conversion from the cast-in-place forming of the filling layer to the intelligent construction of prefabricated assembly is realized.

From the aspect of smooth control, compared with the prior art that the overall smoothness of the track structure is controlled by pouring a filling layer through site construction, in the self-leveling assembly type steel-concrete combined track structure, the smoothness of the prefabricated steel-concrete track unit 3 can be adjusted through the self-leveling anchor-buckling system 4, the overall smoothness of the track structure is adjusted in a self-leveling mode according to the installation environment, the self-leveling anchor-buckling system 4 is simple in adjustment operation and easy to control the precision, the prefabricated steel-concrete track unit 3 and the self-leveling anchor-buckling system 4 can be prefabricated in a factory, the manufacturing precision is high, and the prefabricated steel-concrete track unit 3 can be adjusted in a self-leveling mode according to the actual pouring situation of the base plate 5 to make up the pouring defect of the base plate 5; on the other hand, the self-leveling system can be adjusted in stages according to the operating environment and the deformation of the supporting structure, the adjustable amount is large, the self-leveling system is further suitable for a lower supporting structure and has strong environment capacity, the self-leveling system is particularly suitable for being laid on large-deformation supporting structures such as large-span bridges and the like, the self weight of the structure is light, the rigidity is large, and the stress state of the lower supporting structure can be effectively improved.

From the aspect of maintenance, the track unit of the prefabricated steel-concrete combined structure and the base plate 5 are connected and fixed into a detachable integral structure through the self-leveling buckling anchor system 4, the integral structure is less in interface reduction compared with the existing structure, the damage in the actual operation process is less, and the integral structure is simple to connect and fix and easy to disassemble and assemble and maintain, so that the track unit of the prefabricated steel-concrete combined structure is simple to maintain and repair, simple to replace, low in maintenance cost, short in maintenance required period and low in labor intensity of workers.

Alternatively, as shown in fig. 6 to 8, the foundation plate 5 is used to support the prefabricated steel-concrete track unit 3 and to precisely control the height and the smoothness of the self-leveling assembled steel-concrete composite track structure through precise control of the height and the smoothness thereof during the casting formation process. In this alternative, the foundation plate 5 is cast in place on the roadbed 6 of the railway as shown in fig. 6, or the foundation plate 5 is cast in place on the box girder 7 of the abutment 8 on the pier 9 as shown in fig. 7, or the foundation plate 5 is cast in place on the foundation of the tunnel 10 as shown in fig. 8, so that the foundation plate 5 has a wide range of installation and high adaptability. The bed plate 5 is used for supporting the prefabricated steel-concrete track unit 3 and accurately controlling the height and the smoothness of the self-leveling steel-concrete combined track through accurately controlling the height and the smoothness of the self-leveling steel-concrete combined track in the pouring forming process. During actual construction, an imported paver is adopted for construction, the elevation of a base layer is controlled through machine vision measurement, settlement observation is enhanced, the stability of a roadbed is analyzed and predicted according to data obtained through observation, in order to reduce errors of elevation and thickness control, a section of every 8-10 m can be adopted, and a plurality of point measurements are sequentially arranged on each section at intervals; when the number of elevation measuring points is large in construction, the workload of elevation comparison and thickness calculation is large, an electronic computer can be used for conducting elevation comparison and thickness calculation, the set elevation of the base plate and the measured elevation of each measuring point are made into a data file, the difference value between the elevation of each measuring point and the designed elevation, the thickness of each measuring point, the thickness average value, the mean square deviation and the representative value of each paragraph are calculated through a compiled data processing program, and therefore the next adjustment and control can be guided.

Or, according to the requirement of high-precision construction of the position and shape of the assembly type track base plate, the construction effect, the implementation performance and the accessibility of the base plate precision are comprehensively considered, and the intelligent construction equipment technology of the assembly type track base plate is researched, and the intelligent construction equipment technology can comprise the following technical modules: 1) base plate concrete placement technique: through the comparative research on the technical advantages and feasibility of fixed and movable concrete mixing stations, the construction modes of a concrete raw material supply system and a raw material mixing and pouring system are provided, and the implementation technology and equipment of the base plate concrete pouring process flow are provided; 2) the intelligent space configuration precise control technology comprises the following steps: the method comprises the steps of providing a precise measurement and intelligent control technology suitable for the position shape of a base plate of an assembled track structure by integrating an inertial navigation system, a global positioning navigation system (GPS, Beidou), a vision measurement system, a three-dimensional laser scanning system and the like through comparison and selection; 3) shaping and shaping technology: corresponding construction technology and equipment are provided through the feasibility of a base plate shaping forming technology, a space profile extrusion adjusting technology and a top surface planing, grinding and leveling technology, so that an intelligent base plate shaping and shaping technology with self-adaptability is formed; 4) the intelligent control system comprises: a central control system of the assembly type track bed plate intelligent construction equipment technology is provided by integrating a bed plate concrete pouring technology, an intelligent space configuration precise control technology and a shaping and shaping technology, so that perception identification, precise measurement, intelligent decision and feedback adjustment of the whole process of bed plate construction are realized, and the requirement of precise shaping of the space configuration of the bed plate is met.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. The utility model provides a self leveling steel-concrete combined unit, its characterized in that for lay at interval in proper order along the length direction of bed plate (5) to install, support and leveling rail (1), self leveling steel-concrete combined unit includes:

a prefabricated steel-concrete track unit (3) for mounting and supporting the rail (1), and a self-leveling anchor-clasping system (4) for leveling the rail (1);

the prefabricated steel-concrete track unit (3) is prefabricated and molded by a factory;

the lower end of the self-leveling buckling anchor system (4) is embedded in the base plate (5), the upper end of the self-leveling buckling anchor system (4) penetrates through the prefabricated steel-concrete track unit (3) and then extends out of the prefabricated steel-concrete track unit, so that the prefabricated steel-concrete track unit (3) and the base plate (5) are connected into a detachable integral structure, and the height of the prefabricated steel-concrete track unit (3) relative to the base plate (5) is adjusted.

2. Self-leveling steel-concrete combination unit according to claim 1,

the prefabricated steel-concrete track unit (3) comprises a track plate (302), a prefabricated steel structure and a rail bearing platform (301) for installing and supporting the steel rail (1);

the prefabricated steel structure is arranged along the length direction of the base plate (5), and the track plate (302) is supported on the prefabricated steel structure and is prefabricated with the prefabricated steel structure into a whole;

the lower end of the self-leveling anchor fastening system (4) is embedded in the base plate (5), the upper end of the self-leveling anchor fastening system (4) sequentially penetrates through the prefabricated assembled steel structure and the track plate (302) and then extends out of the prefabricated assembled steel structure and the track plate (302) so as to be used for connecting the base plate (5), the prefabricated assembled steel structure and the track plate (302) into a detachable integral structure, and the prefabricated assembled steel structure is supported on the base plate (5);

support rail platform (301) follow the length direction of track board (302) interval sets up in proper order on the upper surface of track board (302), rail (1) support in support rail platform (301) are last, and through connect in support rail platform (301) first fastener group (2) are fixed.

3. Self-leveling steel-concrete combination unit according to claim 2,

the prefabricated steel structure is a steel truss (303), and the steel truss (303) comprises a plurality of node upright columns (3035) which are vertically arranged at intervals, a connecting fence which is connected between two adjacent node upright columns (3035), and a first stud (3031) which is used for connecting the steel truss (303) and the track plate (302);

the track plate (302) is erected at the top end of the steel truss (303) and is connected with the steel truss (303) into a whole through the first stud (3031).

4. Self-leveling steel-concrete combination unit according to claim 2,

the prefabricated steel structure is an I-shaped steel structure (304), the I-shaped steel structure (304) comprises two supporting steel belts which are arranged in parallel at intervals along the width direction of the base plate (5), node upright columns which are sequentially connected to the supporting steel belts at intervals along the length direction of the supporting steel belts, a first diaphragm plate (3046) connected between the two supporting steel belts, and a second bolt nail (3041) used for connecting the supporting steel belts and the track plate (302);

the supporting steel belt extends along the length direction of the base plate (5);

the track plate (302) is erected at the top ends of the two support steel belts and is connected with the support steel belts which are correspondingly arranged into a whole through the second stud (3041).

5. Self-leveling steel-concrete combination unit according to claim 2,

the prefabricated steel structure is a steel box (305), the steel box (305) comprises two supporting steel boxes which are arranged in parallel at intervals along the width direction of the base plate (5), node columns which are sequentially connected to the supporting steel boxes at intervals along the length direction of the supporting steel boxes, and third studs (3051) for connecting the supporting steel boxes and the track plate (302);

the supporting steel box extends along the length direction of the base plate (5);

the track plate (302) is erected at the top ends of the two supporting steel boxes and is connected with the corresponding supporting steel boxes into a whole through the third bolt nails (3051).

6. Self-leveling steel-concrete combination unit according to any one of claims 3-5,

the self-leveling buckling anchor system (4) is arranged corresponding to each node upright post (3035) and comprises an integrated system base (404) embedded in the base plate (5), a bolt anchor leveling anchor rod (402), a first adjusting screw ring (403) and a second fastener (401), wherein the first adjusting screw ring and the second fastener are in threaded connection with the excircle of the bolt anchor leveling anchor rod (402);

the lower end of the bolt anchor leveling anchor rod (402) is fixed with the integrated system base (404), and the upper end of the bolt anchor leveling anchor rod (402) sequentially penetrates through the correspondingly arranged node upright post (3035) and the track plate (302) and then extends out;

the first adjusting helicoid (403) is positioned between the prefabricated steel structure and the foundation plate (5), and the prefabricated steel structure is supported on the first adjusting helicoid (403);

the second fastener (401) is pressed and fixed on the upper surface of the track plate (302) through the bolt anchor leveling anchor rod (402).

7. Self-leveling steel-concrete combination unit according to any one of claims 3-5,

the self-leveling anchor-buckling system (4) comprises a bolt-anchor system (41) and a self-leveling system (42) which are arranged corresponding to each node upright post;

the bolt-anchor system (41) comprises a bolt-anchor system base (413), a bolt-anchor spiral anchor rod (412) and a third fastener (411) which is in threaded connection with the excircle of the bolt-anchor spiral anchor rod (412) and is fixedly arranged in the node upright column which is correspondingly arranged, the lower end of the bolt-anchor spiral anchor rod (412) is fixed with the bolt-anchor system base (413), the upper end of the bolt-anchor spiral anchor rod (412) sequentially penetrates through the node upright column and the track plate (302) and then extends out, and the third fastener (411) is tightly pressed and fixed on the upper surface of the track plate (302) through the bolt-anchor spiral anchor rod (412);

from leveling system (42) including pre-buried in self leveling system base (423), self leveling screw rod (421) in base plate (5) and threaded connection in second regulation helicoid (422) on self leveling screw rod (421) excircle, the lower extreme from leveling screw rod (421) with self leveling system base (423) are fixed, upwards stretch into corresponding the setting from the upper end of leveling screw rod (421) in the node stand, second regulation helicoid (422) are located prefabricated assembled steel structure with between base plate (5), just prefabricated assembled steel structure support in on second regulation helicoid (422).

8. Self-leveling steel-concrete combination unit according to any one of claims 3-5,

the self-leveling anchor-buckling system (4) comprises a bolt-anchor system (41) and a self-leveling system (42) which are arranged corresponding to different node columns;

the bolt-anchor system (41) comprises a bolt-anchor system base (413), a bolt-anchor spiral anchor rod (412) and a third fastener (411) which is in threaded connection with the excircle of the bolt-anchor spiral anchor rod (412) and is fixedly arranged in the node upright column which is correspondingly arranged, the lower end of the bolt-anchor spiral anchor rod (412) is fixed with the bolt-anchor system base (413), the upper end of the bolt-anchor spiral anchor rod (412) sequentially penetrates through the node upright column and the track plate (302) and then extends out, and the third fastener (411) is tightly pressed and fixed on the upper surface of the track plate (302) through the bolt-anchor spiral anchor rod (412);

from leveling system (42) including pre-buried in self leveling system base (423), self leveling screw rod (421) in base plate (5) and threaded connection in second regulation helicoid (422) on self leveling screw rod (421) excircle, the lower extreme from leveling screw rod (421) with self leveling system base (423) are fixed, upwards stretch into corresponding the setting from the upper end of leveling screw rod (421) in the node stand, second regulation helicoid (422) are located prefabricated assembled steel structure with between base plate (5), just prefabricated assembled steel structure support in on second regulation helicoid (422).

9. Self-leveling steel-concrete combination unit according to any one of claims 3-5,

the prefabricated steel structure further comprises a packing column (3036) filled in the node upright column (3035);

the self-leveling anchoring system (4) is arranged through the packed column (3036).

10. A self-leveling steel-concrete composite track, comprising:

the self-leveling steel-concrete combined rail comprises a base plate (5) formed on a supporting foundation in a cast-in-place mode, wherein the base plate (5) extends along the running direction of a train, and the base plate (5) plays a supporting role and is used for accurately controlling the height and the smoothness of the self-leveling steel-concrete combined rail in the casting forming process;

the self-leveling steel-concrete combined unit as claimed in any one of claims 1 to 9 is sequentially arranged on the base plate (5) at intervals along the length direction of the base plate, and the self-leveling steel-concrete combined unit is prefabricated and molded by a factory;

and a steel rail (1) for slidably supporting the train is also supported on the self-leveling steel-concrete combined unit.

Images