CN102912693A - Floating track bed precast slab and construction method for precast slab assembled floating track bed - Google Patents
Floating track bed precast slab and construction method for precast slab assembled floating track bed Download PDFInfo
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- CN102912693A CN102912693A CN2012104544000A CN201210454400A CN102912693A CN 102912693 A CN102912693 A CN 102912693A CN 2012104544000 A CN2012104544000 A CN 2012104544000A CN 201210454400 A CN201210454400 A CN 201210454400A CN 102912693 A CN102912693 A CN 102912693A
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- ballast bed
- floating ballast
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Abstract
The invention discloses a construction method for a precast slab assembled floating track bed, which includes the following steps: laying a circuit center line of a base of a floating track bed and encrypted disjunction marks for positioning of precast slab main bodies; laying a hoisting control line of the precast slab main bodies and placing a position control line of side vibration isolators; mounting the side vibration isolators and present precast slab main bodies; placing vibration isolator inner sleeves in outer sleeve devices; laying adjacent precast slab main bodies along the extending direction of the circuit of the base of the floating track bed and connecting the adjacent precast slab main bodies with the present precast slab main bodies into a whole; and sequentially laying a plurality of precast slab main bodies along the extending direction of the circuit of the base of the floating track bed until an integral floating track bed is formed. The invention further provides a floating track bed precast slab for splicing the floating track bed. The construction method for the assembled floating track bed, provided by the invention, has simple construction procedures, short construction period, high construction efficiency and high construction quality, and facilitates safety inspection on the floating track bed in the follow-up utilization, and damaged components in failure are replaceable.
Description
Technical field
The present invention relates to the track traffic technical field of construction, relate in particular to the floating ballast bed job practices of a kind of precast plate pin-connected panel.
Background technology
Steel spring floating slab is the in recent years extensively a kind of novel high-grade track vibration isolation mainstream technology measure of employing of subway industry, be will have certain mass of vibration steel concrete road bed board and be floated on the damping spring vibration isolator of certain stiffness, consist of classical " quality-spring " vibrating isolation system, has three dimensional elasticity and stability, and can suppress and the conduction of absorbing solid sound, thereby reduce track traffic to vibration and the influence of noise of surrounding enviroment, therefore be applied to the domestic city track traffic and had a surplus in 10 years, and have broad application prospects.At present, Beijing has put into effect provincial standard " urban track traffic spring floating plate track technical specification " to this technology, with design, construction, examination, detection, the maintenance of standard steel spring floating slab track structure.
But the construction of floating-board ballast bed of steel spring project content of prior art is many, complex procedures, long construction period.As the Chinese patent utility model application number be 20120118256, name is called in " a kind of prefabricated assembled Construction Technique of Steel Spring Floating Slab Track technique " disclosed job practices, at first, unwrapping wire is measured in substrate to the floating plate railway roadbed; Then, reinforcing bar binding and concrete pouring construction are carried out in substrate to the floating plate railway roadbed, and the prefabricated floating plate that will process is transported to the storage of bed board tracklaying base; Then, from front to back assembling is laid and finished to a plurality of prefabricated floating plates successively; At last, at the prefabricated floating plate that the laying apparatus construction is finished rail is installed, track is carried out accurate adjustment.Adopt this kind job practices, accelerating construction progress improves efficiency of construction to a certain extent, but, this kind job practices exists following shortcoming: need to arrange in advance a plurality of cushion blocks in floating ballast bed substrate, it has increased the preparation of construction, has wasted manpower and time; The vibration isolator inner sleeve was installed on the prefabricated floating plate before side-mounted vibration isolator is installed, and therefore needed repeatedly it to be adjusted, and had increased the engineering time, had affected construction speed; Need to adopt shear hinge to be connected and fixed between contiguous prefabricated floating plate, it is embedded in the prefabricated floating plate, can't check, loses efficacy in case damage, and can't change, and track structure and train operation are all produced adverse influence.
Summary of the invention
The object of the invention is to overcome above-mentioned the deficiencies in the prior art, a kind of floating ballast bed precast plate is provided, it is concentration pre-casting in factory, quality of finished product good; The present invention also provides a kind of precast plate pin-connected panel floating ballast bed job practices, it carries out assembly unit with a plurality of floating ballast bed precast plates, working procedure is simple, the cycle is short, efficient is high, quality is good, and is convenient to floating ballast bed safety inspection in follow-up use, and damages the replaceable parts that lost efficacy.
To achieve these goals, floating ballast bed precast plate of the present invention comprises: precast plate main body, its both ends are provided with respectively be used to the groove structure of settling side-mounted vibration isolator; Be placed in two row's tracks of precast plate main body upper surface; Be used for settling a plurality of outer sleeve devices of vibration isolator inner sleeve, corresponding track setting; Be placed in the sleeve pipe group of precast plate main body two side corner sections.
Preferably, the sleeve pipe in described track, outer sleeve device and the described sleeve pipe group all is cast in the precast plate main body, and with its formation one integral body.
Wherein, establish two side-mounted vibration isolators in each described groove structure two ends, each described side-mounted vibration isolator has the vibration isolator web, and the vibration isolator web comprises two wing plates of V-shaped layout, and two wing plates are used for connecting the precast plate main body of two adjacency.
Wherein, settle high-strength bolt in the sleeve pipe of described sleeve pipe group, described high-strength bolt is individually fixed in the precast plate main body of described two adjacency for the level connection joint plated construction of the precast plate main body that will connect two adjacency.
Preferably, described side-mounted vibration isolator also comprises: the vibration isolator main body, the base plate of the dismountable arrangement vibration isolator of one side end face web, its opposite side insert in the described groove structure and support the precast plate bottom part body.
Preferably, described level connection joint plated construction also comprises: junction plate, which is provided with the bolt hole with the corresponding setting of sleeve pipe of sleeve pipe group, and described high-strength bolt passes respectively the precast plate main body that bolt hole and sleeve pipe are connected in junction plate two adjacency.
Preferably, described bolt hole comprises the first rounded bolt hole that is positioned at the junction plate two ends and is oblong the second bolt hole that high-strength bolt is placed in the second bolt hole by the cover plate of placing on the second bolt hole.
The present invention also provides a kind of and is assembled into floating ballast bed job practices by above-mentioned floating ballast bed precast plate, and it comprises the steps:
1) lays the central lines of track of floating ballast bed substrate and be used for Additional benchmark with the precast plate main body location of floating ballast bed precast plate;
2) lay its lifting control line according to the physical dimension of a plurality of precast plate main bodys to be laid in the floating ballast bed interval, and set out be used to the Position Control line that is installed in the side-mounted vibration isolator in each precast plate body recess structure according to lifting control line successively cloth;
3) side-mounted vibration isolator is installed successively and is carried out Primary Location according to described Position Control line, then according to described lifting control line described a plurality of precast plate main bodys are installed on the side-mounted vibration isolator after the Primary Location;
4) the vibration isolator inner sleeve is placed in respectively in the outer sleeve device of described precast plate main body;
5) contiguous prefabricated plate main body is connected as one, until the shape all-in-one-piece is floating ballast bed.
Wherein, before constructing according to described step 1), need a plurality of precast plate main bodys of processing and be transported to the job site to store, carry out simultaneously the measurement unwrapping wire of floating ballast bed substrate construction, and reinforcing bar binding and concrete pouring construction are carried out in floating ballast bed substrate.
Preferably, when concrete pouring construction is carried out in described floating ballast bed substrate, finish a vertically middle gutter in the floating ballast bed substrate middle part construction of constructing.
Preferably, after reinforcing bar binding and concrete pouring construction are carried out in described floating ballast bed substrate, carry out repetition measurement and the finishing of floating ballast bed substrate construction, with elevation and the planeness that guarantees floating ballast bed upper surface of substrate.
Wherein, in the described step 3), after described a plurality of precast plate main bodys are installed, it is carried out accurate adjustment, and after the accurate adjustment side-mounted vibration isolator is carried out the elevation adjustment, and reserve the elevation jacking compensation rate of vibration isolator inner sleeve.
Preferably, when described side-mounted vibration isolator is installed floating ballast bed precast plate, should make described side-mounted vibration isolator be in the uniform-compression state.
Preferably, when in described outer sleeve device, the vibration isolator inner sleeve being installed, should make described vibration isolator inner sleeve be in the uniform-compression state.
Wherein, described step 5) comprises:
In each sleeve pipe of described sleeve pipe group, settle high-strength bolt, by high-strength bolt the level connection joint plated construction is fixed on the described contiguous prefabricated plate main body, in order to by the level connection joint plated construction two adjacent precast plate main bodys are linked to each other;
Described two wing plates of side-mounted vibration isolator are connected to the groove structure of described contiguous prefabricated plate main body, in order to by side-mounted vibration isolator two adjacent precast plate main bodys are linked to each other, thereby the shape all-in-one-piece is floating ballast bed.
Wherein, described step 5) also comprises:
At described two floating ballast bed row's tracks two one steel rails and rail fastening are installed, and after rail is installed it are adjusted accordingly;
At the described floating ballast bed floating ballast bed fixture of installing.
Preferably, described floating ballast bed fixture comprises: floating ballast bed interval sealing device, drainage ditch cover plate, pipeline confluxes.
With respect to prior art, the floating ballast bed job practices of precast plate pin-connected panel of the present invention has following outstanding advantage:
1) in the floating ballast bed job practices of precast plate pin-connected panel of the present invention, the floating ballast bed precast plate of employing is simple in structure, easy to use, and concentration pre-casting in factory is carried out factory management, and the concrete curing environment is good, quality of finished product good;
2) the floating ballast bed job practices of precast plate pin-connected panel of the present invention does not need to arrange in advance a plurality of cushion blocks in floating ballast bed substrate, has reduced the preparation of construction, has saved plenty of time and human and material resources;
3) the floating ballast bed job practices of precast plate pin-connected panel of the present invention had been finished floating ballast bed elevation adjustment before the vibration isolator inner sleeve is installed, therefore reduced the jacking number of times, had improved construction speed;
4) in the floating ballast bed job practices of precast plate pin-connected panel of the present invention, adjacent floating ballast bed precast plate adopts the level connection joint plated construction to connect, this level connection joint plated construction simple in structure, easy to use, it places on the floating ballast bed bed surface, it is convenient to check, for damaging the replaceable parts that lost efficacy, adopt this level connection joint plated construction, so that the splicing of adjacent floating ballast bed precast plate is convenient, save the splicing time, improve efficiency of construction;
5) floating ballast bed precast plate of the present invention set of tubes in track, outer sleeve, the sleeve pipe group all is cast in the precast plate main body and with its formation one integral body, made things convenient for the installation of each matching component in the work progress, greatly save the time, improved efficiency of construction.
The present invention is described in detail below in conjunction with accompanying drawing.
Description of drawings
Fig. 1 is the structural representation of floating ballast bed precast plate of the present invention;
Fig. 2 is the floating ballast bed job practices flow chart of precast plate pin-connected panel of the present invention;
The artwork of central lines of track and Additional benchmark when Fig. 3 is floating ballast bed construction of the present invention;
The artwork of lifting control line and Position Control line when Fig. 4 is floating ballast bed construction of the present invention;
The scheme of installation of side-mounted vibration isolator and precast plate main body when Fig. 5 is floating ballast bed construction of the present invention;
Fig. 6 is the lateral view of Fig. 5;
The scheme of installation of vibration isolator inner sleeve when Fig. 7 is floating ballast bed construction of the present invention;
Fig. 8 is the installation in abutting connection with the precast plate main body of the present invention and connection diagram;
Fig. 9 is the structural representation of the floating ballast bed construction of precast plate pin-connected panel of the present invention when finishing;
Figure 10 is the structural representation of side-mounted vibration isolator of the present invention;
Figure 11 is the schematic diagram of the level connection joint plated construction of two precast plate main bodys of connection of the present invention;
Figure 12 is the schematic diagram of groove structure of the present invention.
Description of reference numerals: 1-precast plate main body; The 2-groove structure; The 3-track; 4-outer sleeve device; The 5-sleeve pipe; The 6-bus terminal; The 21-groove; 22-the first groove; 23-the second groove; The 24-inclined plane; 80-level connection joint plated construction; The 81-junction plate; The 82-high-strength bolt; The 83-shrinkage joint; 84-circle bolt hole; The oval bolt hole of 85-; The 86-cover plate; The 87-steel sleeve; The side-mounted vibration isolator of 90-; 91-vibration isolator web; 92-vibration isolator main body; 93-heightens pad; The 94-resilient sleeper-bearing; 95-vibration isolator limited block.
The specific embodiment
As shown in Figure 1, floating ballast bed precast plate of the present invention comprises: be the precast plate main body 1 of cuboid, its both ends are provided with respectively groove structure 2; Be placed in two row's tracks 3 of precast plate main body 1 upper surface; Be used for settling a plurality of outer sleeve devices 4 of vibration isolator inner sleeve, its corresponding track 3 arranges; Be placed in the sleeve pipe group of 1 liang of side corner sections of precast plate main body, each sleeve pipe group is comprised of a plurality of sleeve pipes 5.In addition, be mounted with the bus terminal that is positioned at the sleeve pipe group outside in precast plate main body 1, and, track 3, outer sleeve 4, sleeve pipe 5 and bus terminal all are cast in the precast plate main body 1, and with its formation one integral body, and outer sleeve device and the vibration isolator inner sleeve that is placed in wherein consist of built-in vibration isolator.
Wherein, at groove structure 2 interior two ends two side-mounted vibration isolators 90 are set.
As shown in figure 12, groove structure 2 of the present invention comprises: form the groove 21 of peep hole, run through precast plate main body 1 thickness direction and extend; The peep hole cover plate be used for to be installed to cover the first groove 22 of peep hole,, and to be linked to each other with groove 21 along its thickness direction to the downward-extension certain thickness by precast plate main body 1 upper surface; The second groove 23 extends upward certain thickness by precast plate main body 1 soffit along its thickness direction, and two side-mounted vibration isolators 90 are settled at two ends in it, and links to each other with groove 21; And two longitudinal side walls of groove 21 are inclined plane 24.
And as shown in figure 10, the side-mounted vibration isolator among the present invention comprises: vibration isolator web 91, its have with the two V-shaped wing plates of the corresponding connection in vertical side of the groove structure 2 of precast plate main body and with V-arrangement side plate base plate connected vertically; Vibration isolator main body 92, the base plate of the dismountable arrangement vibration isolator of one side end face web 91, its opposite side are inserted in the groove structure 2 and are supported the precast plate bottom part body; Be installed in successively and heighten pad 93 and resilient sleeper-bearing 94 on the vibration isolator main body 92, in order to adjust the height of vibration isolator main body 92 it is fully contacted with the precast plate bottom part body, thereby prevent precast plate main body local pressure.Further, the two V-shaped wing plates of vibration isolator web 91 are connected by vibration isolator limited block 95 with each inclined plane 24.
Each side-mounted vibration isolator 90 is by being connected to the precast plate main body 1 of two adjacency with two V-shaped in its vibration isolator web wing plates, and the precast plate main body 1 of two adjacency is connected as one at the middle part of butt end; And in each sleeve pipe 5, being mounted with high-strength bolt 82, high-strength bolt 82 is by being connected to level connection joint plated construction 80 the precast plate main body 1 of two adjacency, and the precast plate main body 1 of two adjacency is connected as one.
As shown in figure 11, level connection joint plated construction 80 of the present invention comprises: junction plate 81 which is provided with the bolt hole of corresponding setting with sleeve pipe; High-strength bolt 82 passes respectively bolt hole and sleeve pipe 5 is connected in junction plate 81 in abutting connection with the precast plate main body.Wherein, bolt hole is symmetrically distributed in two in abutting connection with 83 both sides, the intersubjective shrinkage joint of precast plate, it comprises the first rounded bolt hole 84 that is positioned at the junction plate two ends and is oblong the second bolt hole 85, high-strength bolt passes the cover plate 86 that is placed on the second bolt hole and is placed in the second bolt hole, high-strength bolt 82 neck covers in the second bolt hole 85 have steel sleeve 87, these steel sleeve 87 bottom supports are on the sleeve pipe corresponding with its position 5, and the top contacts with the bottom surface of cover plate 86; And the high-strength bolt 82 in the first bolt hole 85 is connected with sleeve pipe 5, and surface cover has packing ring under the nuts of this high-strength bolt 82.Usually, the first bolt hole on each level connection joint plated construction 80 and the quantity in stay bolt hole are 4 or 8, and the long axis length of oval bolt hole 85 is diameter and the shrinkage joint 83 width sums of high-strength bolt 82.
It is floating ballast bed to form that the present invention adopts above-mentioned floating ballast bed precast plate to carry out assembly unit, and as shown in Figure 2, the floating ballast bed job practices of precast plate pin-connected panel of the present invention comprises the steps:
1) lays the central lines of track of floating ballast bed substrate and be used for Additional benchmark with the precast plate main body location of floating ballast bed precast plate;
2) lay its lifting control line according to the physical dimension of a plurality of precast plate main bodys to be laid in the floating ballast bed interval, and set out be used to the Position Control line that is installed in the side-mounted vibration isolator in each precast plate body recess structure according to lifting control line successively cloth;
3) side-mounted vibration isolator is installed successively and is carried out Primary Location according to described Position Control line, then according to described lifting control line described a plurality of precast plate main bodys are installed on the side-mounted vibration isolator after the Primary Location;
4) the vibration isolator inner sleeve is placed in respectively in the outer sleeve device of described precast plate main body;
5) contiguous prefabricated plate main body is connected as one, until the shape all-in-one-piece is floating ballast bed.
The below is assembled into floating ballast bed process as example take floating ballast bed precast plate of the present invention, describes the floating ballast bed work progress of precast plate pin-connected panel:
After the tunnel completion, before the floating ballast bed laying, at first carry out the DATA REASONING in floating ballast bed interval, such as the measurement of tunnel elevation and left-right deviation etc., and according to measured data, coordinate with designing unit, determine the constructure scheme that the precast plate pin-connected panel is floating ballast bed; According to determined floating ballast bed connection scheme, in factory, carry out the processing of floating ballast bed precast plate, and in process, track 3, outer sleeve 4, sleeve pipe 5 and bus terminal all are cast in the precast plate main body 1, with its formation one integral body, and the floating ballast bed precast plate that will process is transported to the job site storage in batches in order to follow-up use.
In the man-hour that adds of carrying out floating ballast bed precast plate, the row of two on the precast plate main body 1 track 3 is be arranged in parallel, and the quantity of track is even number and is no less than 6 in every row's track 3, and the quantity of the outer sleeve device 4 of corresponding setting with it is no less than 2.Preferably, in every row's track, except the track near two transverse end surfaces, per two tracks are one group in remaining track, between two tracks of every group an outer sleeve device 4 are set.In concrete the application, can carry out according to the dimensions of precast plate main body 1 setting of the quantity of track and outer sleeve device 4, when large such as dimensions, the quantity of the track of setting and outer sleeve device is some more, and on the contrary, the quantity that then arranges is less.
In the process of the floating ballast bed precast plate of processing, adopt the measurement line-putting method of conventional floating ballast bed substrate, carry out the measurement unwrapping wire of floating ballast bed substrate construction, and according to measuring the unwrapping wire result, adopt the job practices of conventional floating ballast bed substrate, circuit bearing of trend along the floating ballast bed track of constructing carries out reinforcing bar binding and concrete pouring construction to floating ballast bed substrate from front to back.And, when concrete pouring construction is carried out in floating ballast bed substrate, should the floating ballast bed substrate middle part construction of constructing finish one longitudinally in the middle of the gutter.
After floating ballast bed substrate construction is finished, repetition measurement and finishing are carried out in floating ballast bed substrate, reach the predetermined requirement of laying with elevation and the planeness that guarantees floating ballast bed upper surface of substrate, and after measuring, as shown in Figure 3, lay the central lines of track of floating ballast bed substrate, and according to the physical dimension of precast plate main body, lay the Additional benchmark that is used for precast plate main body location.
Central lines of track and the Additional benchmark laid according to previous step as shown in Figure 4, are laid the lifting control line of a plurality of precast plate main bodys of required laying in the floating ballast bed interval and are used for supporting the Position Control line of the side-mounted vibration isolator of these precast plate main bodys.Then, shown in Fig. 5,6, according to the Position Control line side-mounted vibration isolator is installed successively, and under the effect of hanging device, successively each precast plate main hanger is filled to floating ballast bed substrate top, and after carrying out Primary Location according to lifting control pair precast plate main body, it directly is positioned over for four side-mounted vibration isolators that support it, and make four side-mounted vibration isolators all be in the uniform-compression state, thereby finish the lifting of precast plate main body.And, after a plurality of precast plate main hangers in the floating ballast bed interval install into, position to each precast plate main body is measured, adopt general measure equipment to cooperate Construction of Ballastless Track with floating ballast bed precast plate adjuster, and the fine adjusting method of non-fragment orbit routinely, accurate adjustment is carried out in position to the precast plate main body after the Primary Location, and uses special-purpose jacking tool to finish the elevation adjustment of side-mounted vibration isolator.
When side-mounted vibration isolator being carried out the elevation adjustment, need reserve the compensation rate of vibration isolator inner sleeve, as shown in Figure 7, use special-purpose jacking tool the vibration isolator inner sleeve to be installed in the outer sleeve device of these precast plate main bodys that current laying finishes, and make the vibration isolator inner sleeve be in the uniform-compression state, carry out the jacking adjustment of vibration isolator inner sleeve after the installation.In the present invention, at first lay the Position Control line of side-mounted vibration isolator in floating ballast bed substrate, then carry out installation and the elevation adjustment of side-mounted vibration isolator, and the jacking compensation rate that is in course of adjustment and reserves the vibration isolator inner sleeve, carry out at last the installation of vibration isolator inner sleeve, adopt above-mentioned job practices, reduced the jacking number of times of built-in vibration isolator, accelerate the install and adjust process of side-mounted vibration isolator and built-in vibration isolator, greatly improved speed of application.
Installing successively side-mounted vibration isolator, behind precast plate main body and the vibration isolator inner sleeve, circuit bearing of trend along floating ballast bed substrate, by a plurality of level connection joint plated constructions and side-mounted vibration isolator adjacent precast plate main body is connected as one, and the installation of precast plate main body and side-mounted vibration isolator and vibration isolator inner sleeve carried out repeated measurement and adjustment, after it satisfies design condition, mounting method according to the floating ballast bed rail of routine, along construct the circuit bearing of trend floating ballast bed, laying two floating ballast bed row's tracks installation two one steel rails and the rail fastenings of finishing, and two one steel rails are adjusted accordingly, then at the floating ballast bed fixture of floating ballast bed installation, as sealing device is installed between the floating ballast bed left and right sides and the tunnel wall and between contiguous prefabricated plate main body in order to seal, the pipeline that will conflux is installed in the bus terminal, the ditch cover plate is installed on the gutter, etc., to consist of the floating ballast bed of one as shown in Figure 9.
In the work progress, in order to improve construction speed, can adopt the laying construction of precast plate main body and the installation of two one steel rails to carry out continuously simultaneously at the scene.When carrying out the installation of rail, be installed in rail on the track of precast plate main body with rail fastening, the moment of torsion of the connecting bolt of rail fastening need meet design requirement, detect afterwards the gauge of two one steel rails, just, the track geometry such as level, direction, and adjust the track geometry of rail with rail fastening, after the track geometry of rail meets designing requirement, adopt level connection joint plated construction and side-mounted vibration isolator to carry out assembly unit two contiguous prefabricated plate main bodys.
In above-mentioned work progress, when side-mounted vibration isolator being carried out the elevation adjustment, need to be under special-purpose jacking tool and workman's cooperation, repeatedly adjust the thickness of heightening pad 93 that is installed on the vibration isolator main body 92, in order to adjust the height of vibration isolator main body 92 it is fully contacted with the precast plate bottom part body, make precast plate main body uniform-compression on side-mounted vibration isolator, thereby prevent the local pressure of precast plate main body, by the two V-shaped wing plates of vibration isolator web 91 are connected with the inclined plane 24 of the precast plate main body of two adjacency respectively, thereby when the precast plate main body with two adjacency is assemblied into one, two horizontal and lengthwise movements in abutting connection with the precast plate main body have also been limited.Because vibration isolator main body 92 and vibration isolator web 91 are removably mounted between the two adjacent floating ballast bed precast plates, installation and leveling to floating ballast bed precast plate have been made things convenient for, when having improved construction regulate the speed and when laying finish floating ballast bed when the sedimentation situation occurring, can in time adjust it, and be the providing convenience property of maintenance and inspection in the subsequent applications.
For the vibration isolator inner sleeve, also need its split type pad to be adjusted, to guarantee that precast plate main body uniform-compression is on the vibration isolator inner sleeve according to concrete needs, its method of adjustment adopts the method for adjustment of the vibration isolator inner sleeve of prior art, no longer repeats at this.
And in above-mentioned work progress, it is as follows to adopt level connection joint plated construction 80 of the present invention that the precast plate main body of two adjacency is connected as one the process of (as shown in Figure 8): junction plate 81 directly is placed on the precast plate main body of two adjacency, the position that makes the junction plate upper bolt hole is corresponding with the position of sleeve pipe 5 on the precast plate main body of two adjacency respectively, then in the second bolt hole, settle steel sleeve 87, and cover plate is placed in the upper surface of steel sleeve, at last a plurality of high-strength bolts are passed respectively the first bolt hole and the second bolt hole, thereby junction plate is linked to each other with the precast plate main body of two adjacency respectively, and then the precast plate main body of two adjacency is assemblied into one.
The present invention since floating ballast bed precast plate upper surface with upper part peripheral hardware steel sleeve 87, so when high-strength bolt 82 is tightened, compress steel sleeve 87 and malcompression junction plate 81, so that junction plate 81 can be between adjacent precast plate main body free-extension, thereby regulate the intersubjective distortion difference of two adjacent precast plates; And junction plate 81 is installed in the upper surface of precast plate main body, and convenient the inspection for damaging the parts that lost efficacy, can be changed, and does not therefore affect normal traffic safety.By two level connection joint plated constructions 80 being installed in respectively the two ends of two contiguous prefabricated plate main bodys, guaranteed globality floating ballast bed in the floating ballast bed interval.
Although above the present invention has been done detailed description; but the invention is not restricted to this; those skilled in the art can principle according to the present invention make amendment, and therefore, all various modifications of carrying out according to principle of the present invention all should be understood to fall into protection scope of the present invention.
Claims (10)
1. a floating ballast bed precast plate is characterized in that, comprising:
Precast plate main body (1), its both ends are provided with respectively be used to the groove structure of settling side-mounted vibration isolator (90) (2);
Be placed in two row's tracks (3) of precast plate main body (1) upper surface;
Be used for settling a plurality of outer sleeve devices (4) of vibration isolator inner sleeve, corresponding track (3) arranges;
Be placed in the sleeve pipe group of precast plate main body (1) two side corner sections.
2. floating ballast bed precast plate according to claim 1 is characterized in that, the sleeve pipe (5) in described track (3), outer sleeve device (4) and the described sleeve pipe group all is cast in the precast plate main body (1), and with its formation one integral body.
3. floating ballast bed precast plate according to claim 2, it is characterized in that, establish two side-mounted vibration isolators (90) in each described groove structure two ends, each described side-mounted vibration isolator (90) has vibration isolator web (91), the vibration isolator web comprises two wing plates of V-shaped layout, and two wing plates are used for connecting the precast plate main body (1) of two adjacency.
4. floating ballast bed precast plate according to claim 3, it is characterized in that, settle high-strength bolt (82) in the sleeve pipe of described sleeve pipe group (5), described high-strength bolt (82) is individually fixed in the precast plate main body (1) of described two adjacency for the level connection joint plated construction (80) of the precast plate main body (1) that will connect two adjacency.
5. one kind by being assembled into floating ballast bed job practices such as the described floating ballast bed precast plate of claim 1-4, it is characterized in that, comprises the steps:
1) lays the central lines of track of floating ballast bed substrate and be used for Additional benchmark with the precast plate main body location of floating ballast bed precast plate;
2) lay its lifting control line according to the physical dimension of a plurality of precast plate main bodys to be laid in the floating ballast bed interval, and set out be used to the Position Control line that is installed in the side-mounted vibration isolator in each precast plate body recess structure according to lifting control line successively cloth;
3) side-mounted vibration isolator is installed successively and is carried out Primary Location according to described Position Control line, then according to described lifting control line described a plurality of precast plate main bodys are installed on the side-mounted vibration isolator after the Primary Location;
4) the vibration isolator inner sleeve is placed in respectively in the outer sleeve device of described precast plate main body;
5) contiguous prefabricated plate main body is connected as one, until the shape all-in-one-piece is floating ballast bed.
6. the floating ballast bed job practices of precast plate pin-connected panel according to claim 5, it is characterized in that, before constructing according to described step 1), need a plurality of precast plate main bodys of processing and be transported to the job site to store, carry out simultaneously the measurement unwrapping wire of floating ballast bed substrate construction, and reinforcing bar binding and concrete pouring construction are carried out in floating ballast bed substrate.
7. the floating ballast bed job practices of precast plate pin-connected panel according to claim 6, it is characterized in that, after reinforcing bar binding and concrete pouring construction are carried out in described floating ballast bed substrate, carry out repetition measurement and the finishing of floating ballast bed substrate construction, with elevation and the planeness that guarantees floating ballast bed upper surface of substrate.
8. the floating ballast bed job practices of precast plate pin-connected panel according to claim 5, it is characterized in that, in the described step 3), after described a plurality of precast plate main bodys are installed, it is carried out accurate adjustment, and after the accurate adjustment side-mounted vibration isolator is carried out the elevation adjustment, and reserve the elevation jacking compensation rate of vibration isolator inner sleeve.
9. the floating ballast bed job practices of precast plate pin-connected panel according to claim 5 is characterized in that described step 5) comprises:
In each sleeve pipe of described sleeve pipe group, settle high-strength bolt, by high-strength bolt the level connection joint plated construction is fixed on the described contiguous prefabricated plate main body, in order to by the level connection joint plated construction two adjacent precast plate main bodys are linked to each other;
Described two wing plates of side-mounted vibration isolator are connected to the groove structure of described contiguous prefabricated plate main body, in order to by side-mounted vibration isolator two adjacent precast plate main bodys are linked to each other, thereby the shape all-in-one-piece is floating ballast bed.
10. the floating ballast bed job practices of precast plate pin-connected panel according to claim 9 is characterized in that described step 5) also comprises:
At described two floating ballast bed row's tracks two one steel rails and rail fastening are installed, and after rail is installed it are adjusted accordingly;
At the described floating ballast bed floating ballast bed fixture of installing.
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| CN103669115A (en) * | 2013-11-27 | 2014-03-26 | 北京九州一轨隔振技术有限公司 | Floating way bed plate and vibration isolating system comprising same |
| CN103757994A (en) * | 2014-01-28 | 2014-04-30 | 北京九州一轨隔振技术有限公司 | Floating track bed construction method based on novel floating slabs and polymer vibration isolators |
| CN105937195A (en) * | 2016-06-15 | 2016-09-14 | 安徽兴宇轨道装备有限公司 | Plate adjusting trolley for laying prefabricated plate ballast bed |
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| CN114395944A (en) * | 2022-01-05 | 2022-04-26 | 北京九州一轨环境科技股份有限公司 | Assembled steel spring floating slab track bed |
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| CN103485247A (en) * | 2013-10-11 | 2014-01-01 | 隔而固(青岛)振动控制有限公司 | Method for installing and leveling floating slab in prefabricated floating slab track bed |
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| CN103757994A (en) * | 2014-01-28 | 2014-04-30 | 北京九州一轨隔振技术有限公司 | Floating track bed construction method based on novel floating slabs and polymer vibration isolators |
| CN103757994B (en) * | 2014-01-28 | 2015-11-04 | 北京九州一轨隔振技术有限公司 | Based on the floating ballast bed construction method of floating plate and macromolecule isolation mounting |
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| CN105937195B (en) * | 2016-06-15 | 2017-10-27 | 安徽兴宇轨道装备有限公司 | A kind of tuned plate car for laying Prefabricated slab type railway roadbed |
| CN107724188A (en) * | 2017-11-28 | 2018-02-23 | 西安卓控环保科技有限公司 | A kind of prefabricated floating plate railway roadbed vibrating isolation system |
| CN112523013A (en) * | 2020-12-29 | 2021-03-19 | 北京九州一轨环境科技股份有限公司 | Split vibration isolator and floating track bed |
| CN114395944A (en) * | 2022-01-05 | 2022-04-26 | 北京九州一轨环境科技股份有限公司 | Assembled steel spring floating slab track bed |
| CN114395944B (en) * | 2022-01-05 | 2023-08-15 | 北京九州一轨环境科技股份有限公司 | Assembled steel spring floating slab road bed |
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Address after: 102402 No.32, Guangmao Road, Doudian Town, Fangshan District, Beijing Patentee after: Beijing Jiuzhou first rail Environmental Technology Co., Ltd Address before: 100070, Fengtai District Science City, Spark Road 11, 6 blocks A, Beijing Office Park Patentee before: BEIJING JIUZHOUYIGUI SHOCK AND VIBRATION ISOLATION Co.,Ltd. |