CN102899996A - Novel construction method of precast slab assembled floating road bed - Google Patents
Novel construction method of precast slab assembled floating road bed Download PDFInfo
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- CN102899996A CN102899996A CN2012104524327A CN201210452432A CN102899996A CN 102899996 A CN102899996 A CN 102899996A CN 2012104524327 A CN2012104524327 A CN 2012104524327A CN 201210452432 A CN201210452432 A CN 201210452432A CN 102899996 A CN102899996 A CN 102899996A
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Abstract
The invention discloses a novel construction method of a precast slab assembled floating road bed. The method comprises the following steps of: laying a central line of a floating road bed base and an encryption foundation mark for positioning a plurality of floating road bed precast slabs to be paved; laying a lifting control line of each floating road bed precast slab and a tool positioning hole for auxiliary positioning; mounting an auxiliary tool according to the tool positioning hole, and mounting the floating road bed precast slabs on the floating road bed base in sequence according to the auxiliary tools and the lifting control lines, and connecting into an integral floating road bed; and mounting inner sleeves of a vibration isolator inside each floating road bed precast slab in sequence, and carrying out integral leveling and jacking. The novel construction method of the precast slab assembled floating road bed disclosed by the invention is simple in construction procedure, short in construction period, high in construction efficiency and good in construction quality, and is convenient for the safety inspection of the floating road bed in later use; and the damaged parts out of work can be replaced.
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 new precast panel pin-connected panel.
Background technology
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, and still, this kind job practices exists following shortcoming:
1) 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;
2) need to install side-mounted vibration isolator, and before being installed, side-mounted vibration isolator needs the vibration isolator inner sleeve is installed on the prefabricated floating plate, therefore need repeatedly side-mounted vibration isolator and vibration isolator inner sleeve to be adjusted, therefore increased the engineering time, affected construction speed;
When 3) prefabricated floating plate being installed, side-mounted vibration isolator and vibration isolator inner sleeve all are in pressured state, can not guarantee that therefore side-mounted vibration isolator and vibration isolator inner sleeve are stressed even after the jacking, cause easily the damage of side-mounted vibration isolator and vibration isolator inner sleeve;
4) 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, provide a kind of new precast panel pin-connected panel floating ballast bed job practices, the vibration isolator kind of its required installation is few, working procedure is simple, short construction period, efficient height, and convenient to floating ballast bed safety inspection in follow-up use.
To achieve these goals, the floating ballast bed job practices of new precast panel pin-connected panel of the present invention is characterized in that, comprises the steps:
1) lays the central lines of track of floating ballast bed substrate and be used for locating the Additional benchmark of a plurality of floating ballast bed precast plates to be laid;
2) lay the lifting control line of each floating ballast bed precast plate and to the tool locating hole of its auxiliary positioning;
3) according to described tool locating hole auxiliary mould is installed, and according to auxiliary mould and described lifting control line a plurality of floating ballast bed precast plates are installed in the described floating ballast bed substrate successively, and after every precast plate carried out accurate adjustment, connect become one floating ballast bed;
4) the vibration isolator inner sleeve is installed in successively in described each floating ballast bed precast plate, and to described floating ballast bed carry out Integral levelling and jacking.
Wherein, before constructing according to described step 1), 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.
Further, after reinforcing bar binding and concrete pouring construction are carried out in described floating ballast bed substrate, before constructing according to described step 1), 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, described step 3) comprises:
31) according to described tool locating hole auxiliary mould is installed, and according to auxiliary mould and described lifting control line in described floating ballast bed substrate, lay a floating ballast bed precast plate;
32) then lay another adjacent floating ballast bed precast plate;
33) position of the adjacent floating ballast bed precast plate of accurate adjustment two, and two adjacent floating ballast bed precast plates are connected as one;
34) repeating step 32) and 33), lay successively a plurality of floating ballast bed precast plates, so that the shape all-in-one-piece is floating ballast bed.
Further, in described step 32) in, behind the position of the floating ballast bed precast plate that accurate adjustment two is adjacent, adopt a plurality of level connection joint plated constructions that two adjacent floating ballast bed precast plates are connected successively, then with a plurality of side-mounted shear plates two adjacent floating ballast bed precast plates are connected successively, so that the shape all-in-one-piece is floating ballast bed.
Preferably, described step 4) also comprises: before the installation of carrying out the vibration isolator inner sleeve, need rail and rail fastening are installed on described each floating ballast bed precast plate successively; To described floating ballast bed carry out Integral levelling and jacking after, the geometric shape of the floating ballast bed upper rail of accurate adjustment, and fixture is installed.
Wherein, described floating ballast bed precast plate comprises: precast plate main body, its both ends are provided with respectively be used to the groove structure of settling side-mounted shear plate; Two row's tracks are placed in precast plate main body upper surface; Be used for settling the outer sleeve device of vibration isolator inner sleeve, corresponding track setting; Be placed in a plurality of the first sleeve pipes in the precast plate main body, it is positioned at the both sides of described groove structure; Be placed in the sleeve pipe group of precast plate main body two side corner sections.
Preferably, described auxiliary mould comprises: the frock body, and the formed cavity size of groove structure is complementary between its physical dimension and two adjacent floating ballast bed precast plates; The alignment pin of being located at frock body bottom and cooperating with described tool locating hole.
Preferably, a plurality of the second sleeve pipes in described a plurality of the first sleeve pipe and the described sleeve pipe group are steel sleeve.
Particularly, described steel sleeve inside is equipped with the nylon sleeve that removably connects with it.
Preferably, described floating ballast bed precast plate also comprises the 3rd sleeve pipe group that is placed on each described track, and the 3rd sleeve pipe group is comprised of a plurality of the 3rd sleeve pipes.
Preferably, described the 3rd sleeve pipe is nylon sleeve.
Perhaps, described the 3rd sleeve pipe is steel sleeve, and its inside is equipped with the nylon sleeve that removably connects with it.
Preferably, per two tracks are one group in the described track of every row, settle a described outer sleeve device between two tracks of every group.
Preferably, described side-mounted shear plate comprises: two V-shaped wing plates, and two wing plates are connected with vertical side of two adjacent floating ballast bed precast plate upper groove structures respectively; With the stiffener that two wing plates are connected respectively, be used for strengthening the bonding strength of two wing plates.
Preferably, described level connection joint plated construction comprises: junction plate which is provided with the bolt hole with the corresponding setting of described the second sleeve pipe; High-strength bolt passes respectively bolt hole and sleeve pipe described junction plate is connected in two adjacent floating ballast bed precast plates.
Preferably, described track, outer sleeve device, the first sleeve pipe, the second sleeve pipe and the 3rd sleeve pipe all are cast in the precast plate main body, and with its formation one integral body.
Wherein, described vibration isolator inner sleeve and vibration isolator outer sleeve consist of built-in vibration isolator.
Preferably, described 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 new precast panel pin-connected panel of the present invention has following outstanding advantage:
1) in the floating ballast bed job practices of new precast panel pin-connected panel of the present invention, do not need in floating ballast bed substrate, to arrange in advance a plurality of cushion blocks, reduced the preparation of construction, saved plenty of time and human and material resources, improved construction speed;
2) in the floating ballast bed job practices of new precast panel pin-connected panel of the present invention, by auxiliary mould floating ballast bed precast plate is positioned, the speed of mating formation of floating ballast bed precast plate has been accelerated in accurate positioning;
3) on the floating ballast bed precast plate of the present invention in every row's track, per two tracks are one group, and between two tracks of every group, settle a vibration isolator inner sleeve, in the floating ballast bed process of assembly unit, side-mounted vibration isolator need be installed, therefore reduce the installation kind of vibration isolator, reduced the leveling operation, shortened construction period;
4) in the floating ballast bed job practices of new precast panel pin-connected panel of the present invention, the vibration isolator inner sleeve by leveling, can guarantee after the jacking that it is stressed evenly under free state, has avoided the damage of the vibration isolator that causes because of unbalance stress;
5) level connection joint plated construction of the present invention is simple in structure, easy to use, and it places on the floating ballast bed bed surface, it is convenient to check, for damaging the replaceable parts that lost efficacy, adopts it that adjacent floating ballast bed precast plate is connected, splicing is convenient, saves time, and improves efficiency of construction;
6) side-mounted shear plate of the present invention is simple in structure, can Fast Installation in adjacent floating ballast bed precast plate and connect and be integrated, save time, improve efficiency of construction;
7) the first sleeve pipe of the present invention and the second sleeve pipe are steel sleeve, its cast directly in the precast plate main body and with its formation one integral body, when connecting, steel sleeve directly can be connected with high-strength bolt, also can at the inner nylon sleeve that removably connects with it of installing of steel sleeve, then nylon sleeve be connected with high-strength bolt.Therefore can select according to the floating ballast bed concrete stressing conditions that precast plate is assembled into, thereby increase the convenience of construction and the safety of operation;
8) the 3rd sleeve pipe on the track of the present invention is nylon sleeve, when the stressed complexity in floating ballast bed described location, can adopt steel sleeve is embedded on the precast plate track in advance, at the inner nylon sleeve that removably connects with it of installing of steel sleeve, and after this nylon sleeve lost efficacy, can utilize simple tool rapidly the inefficacy nylon sleeve to be changed, improve maintainability and the operation safety of circuit, effectively reduce operation maintenance cost;
9) floating ballast bed precast plate of the present invention track, outer sleeve device, the first sleeve pipe, the second sleeve pipe and the 3rd sleeve pipe etc. all are 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 flow chart of the floating ballast bed job practices of new precast panel pin-connected panel of the present invention;
The artwork of central lines of track and Additional benchmark when Fig. 2 is floating ballast bed construction of the present invention;
The artwork in lifting control line and tool locating hole when Fig. 3 is floating ballast bed construction of the present invention;
Fig. 4 is the structural representation of floating ballast bed precast plate of the present invention;
Fig. 5 is the left side view of floating ballast bed precast plate shown in Figure 4;
Fig. 6 is the connection diagram of the adjacent floating ballast bed precast plate of the present invention;
Fig. 7 is top view shown in Figure 6;
Fig. 8 is the 3-D view that A shown in Figure 6 partly amplifies;
Fig. 9 is the structural representation that level connection joint plated construction of the present invention connects adjacent floating ballast bed precast plate;
Figure 10 is left side view shown in Figure 9;
Figure 11 is the structural representation of side-mounted shear plate of the present invention;
Figure 12 is the top view of side-mounted shear plate shown in Figure 11;
Figure 13 is that vibration isolator inner sleeve of the present invention is installed in the outer sleeve device to consist of the schematic diagram of vibration isolator inner sleeve;
Figure 14 is the structural representation of auxiliary mould of the present invention;
Figure 15 is the detachable structural representation that a nylon sleeve is installed in the steel sleeve of the present invention.
Description of reference numerals: 1-precast plate main body; The 2-groove structure; The 3-track; 4-outer sleeve device; 5-the second sleeve pipe; The 6-bus terminal; 7-the first sleeve pipe; 8-the 3rd sleeve pipe; The 21-groove; The 22-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; 88-strengthens wing plate; The side-mounted shear plate of 90-; The 91-wing plate; The 92-stiffener.
The specific embodiment
As shown in Figure 1, the floating ballast bed job practices of new precast panel 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 locating the Additional benchmark of a plurality of floating ballast bed precast plates to be laid;
2) lay the lifting control line of each floating ballast bed precast plate and to the tool locating hole of its auxiliary positioning;
3) according to described tool locating hole auxiliary mould is installed, and according to auxiliary mould and described lifting control line a plurality of floating ballast bed precast plates are installed in the described floating ballast bed substrate successively, and after every precast plate carried out accurate adjustment, connect become one floating ballast bed;
4) the vibration isolator inner sleeve is installed in successively in described each floating ballast bed precast plate, and to described floating ballast bed carry out Integral levelling and jacking.
Concrete, after the tunnel completion, before the floating ballast bed laying, at first carry out the DATA REASONING in floating ballast bed interval, measurement such as 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 the floating ballast bed precast plate that will process is transported to the job site storage in batches in order to follow-up use.
Such as Fig. 4, shown in Figure 5, floating ballast bed floating precast plate of the present invention comprises: the precast plate main body 1 that is cuboid, the centre position of two transverse end surface is respectively equipped with a groove structure 2, by at the side-mounted shear plate 90 of groove structure 2 interior arrangements, thereby two adjacent precast plate main bodys are connected as one.This groove structure comprises: be located at the transverse end surface of precast plate main body 1 and run through the groove 21 of its thickness direction, which is provided with and be convenient to the peep hole 23 observed when safeguarding; Begun and offered the formed groove 22 of certain thickness downwards along its thickness direction by precast plate main body 1 upper surface, it is used for installing the peep hole cover plate covering peep hole, and it is communicated with groove 21, and preferably, two vertical sides of groove are inclined plane 24.Be mounted with the parallel track 3 of two rows that is symmetrically distributed in its longitudinal centre line both sides at precast plate main body 1 upper surface, on it rail and rail fastening can be installed, the quantity of track is even number and is no less than 6 in every row's track 3, and corresponding with it arrange be used for fixedly that the quantity of the outer sleeve device 4 of vibration isolator inner sleeve is no less than 2.In four sleeve pipe groups of precast plate main body 1 four angles place's symmetrical placement, each sleeve pipe group is comprised of a plurality of the second sleeve pipes 5, and is provided with the 3rd sleeve pipe group at each track, and it is comprised of a plurality of the 3rd sleeve pipes 8, in addition, on precast plate main body 1, also be mounted with a plurality of bus terminals 6.When carrying out floating ballast bed precast plate prefabricated, track 3, the first sleeve pipe 7, outer sleeve device 4, the second sleeve pipe 5, the 3rd sleeve pipe 8 and bus terminal 6 all are cast in the precast plate main body 1, so that itself and precast plate main body 1 consists of an integral body, greatly made things convenient for the installation of each matching component in the work progress, save the time, improved efficiency of construction.
Preferably, in every row's track 3, per two tracks are one group, between two tracks of every group, settle an outer sleeve device 4, as shown in Figure 4, when the quantity of every row's track on the precast plate main body 1 was 6, outer sleeve device 4 quantity between every row's track were 3, the outer sleeve device forms built-in vibration isolator with settling vibration isolator inner sleeve in the inner, thereby forms the spring damping system with the precast plate main body.
In the production of carrying out floating ballast bed precast plate and transportation, the measurement line-putting method of conventional floating ballast bed substrate is adopted in the job site, 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 2, lay the central lines of track of the floating ballast bed substrate in the floating ballast bed interval, and according to the physical dimension of floating ballast bed precast plate, lay the Additional benchmark that is used for each floating ballast bed precast plate location.
According to central lines of track and the Additional benchmark that previous step is laid, lay the lifting control line of each floating ballast bed precast plate and to the tool locating hole of its auxiliary positioning.
According to the tool locating hole of having laid and lifting control line, a plurality of floating ballast bed precast plates are installed in the floating ballast bed substrate successively, and connect become one floating ballast bed, concrete steps are as follows:
31) use hanging apparatus to be lifted on the tool locating hole auxiliary mould as shown in figure 14, make the alignment pin in the auxiliary mould aim at floating ballast bed suprabasil tool locating hole and installation in position, at this moment, the physical dimension of the frock body of auxiliary mould just in time and between to be laid two adjacent floating ballast bed precast plates the formed cavity size of groove structure be complementary, then according to the lifting control line of a floating ballast bed precast plate current to be laid and the position of auxiliary mould, a floating ballast bed precast plate is installed in the floating ballast bed substrate;
32) shown in Fig. 6,7, then use hanging apparatus to lay another floating ballast bed precast plate adjacent with the floating ballast bed precast plate of having laid;
33) position of the adjacent floating ballast bed precast plate of accurate adjustment two, and two adjacent floating ballast bed precast plates are connected as one, specific as follows:
At first, adopt a plurality of level connection joint plated constructions that two adjacent floating ballast bed precast plates are connected successively.Shown in Fig. 6,7,8, each the second sleeve pipe 5 interior arrangement high-strength bolt 82 at two adjacent floating ballast bed precast plates, high-strength bolt 82 is by being connected to level connection joint plated construction 80 two adjacent floating ballast bed precast plates, and per two adjacent floating ballast bed precast plates are connected as one.Shown in Fig. 9,10, level connection joint plated construction 80 of the present invention comprises: the junction plate 81 that is connected respectively with adjacent two floating ballast bed precast plates, which is provided with a plurality of bolts hole corresponding with a plurality of the second sleeve pipes 5 positions on two floating ballast bed precast plates, and a plurality of high-strength bolt 82 passes respectively a plurality of bolts hole and a plurality of the second sleeve pipe 5 in order to junction plate 81 is fixed on two adjacent floating ballast bed precast plates.Wherein, a plurality of bolts hole are symmetrically distributed in two 83 both sides, shrinkage joint between floating ballast bed precast plate, and the bolt hole of one side is circle bolt hole 84, and the bolt hole of opposite side is oval bolt hole 85.By junction plate 81 being installed in the upper surface of floating ballast bed precast plate, conveniently patrol and examine personnel's inspection, for damaging the parts that lost efficacy, can change, therefore do not affect normal traffic safety, and in order to make the level connection joint plated construction reach better stress, increased reinforcement wing plate 88 at junction plate.When the level connection joint plated construction being connected on the two adjacent floating ballast bed precast plates by high-strength bolt 82, the sheathed steel sleeve 87 of neck of high-strength bolt 82 that can be in being placed in oval bolt hole 85, and establish a cover plate 86 in oval bolt hole upper cover, so that the upper surface of steel sleeve 87 props up the soffit of cover plate 86, thereby when tightening, high-strength bolt 82 compresses steel sleeve 87 and malcompression junction plate 81, so that junction plate 81 can be between adjacent floating ballast bed precast plate free-extension, thereby regulate distortion difference between two adjacent floating ballast bed precast plates; Also can be not at the sheathed steel sleeve 87 of the neck of high-strength bolt 82, and do not need to establish the cover plate that props up the steel sleeve upper surface in oval bolt hole upper cover, directly make high-strength bolt compress junction plate 81, thereby play a part fasteningly to be connected with reinforcement;
Then, adopt a plurality of side-mounted shear plates that two adjacent floating ballast bed precast plates are connected successively, so that the shape all-in-one-piece is floating ballast bed.As shown in Figure 8, the present invention arranges two side-mounted shear plates 90 in the formed cavity of groove structure of two adjacent floating ballast bed precast plates, and side-mounted shear plate is connected with inclined plane on two adjacent floating ballast bed precast plates respectively, and two adjacent floating ballast bed precast plates are connected as one.Shown in Figure 11,12, side-mounted shear plate 90 of the present invention has V-shaped two wing plates, 91, two wing plates and is provided with a plurality of through holes, and the centre position of two wing plates 91 is provided with the stiffener 92 of strengthening its connection.Be mounted with a plurality of the first sleeve pipes 7 on the inclined plane 24 of floating ballast bed precast plate, and the position of through hole is corresponding on the position of the first sleeve pipe and two wing plates, being placed in high-strength bolts in each first sleeve pipe 7 passes the through hole of corresponding position on two wing plates and two wing plates 91 is installed in respectively on the inclined plane 24 of adjacent floating ballast bed precast plate, thereby make two adjacent floating ballast bed precast plates be assemblied into one in the centre position, effectively prevent the movement vertically of contiguous prefabricated plate main body;
34) repeating step 32) and 33), lay successively a plurality of floating ballast bed precast plates, and with two adjacent floating ballast bed connections, so that the shape all-in-one-piece is floating ballast bed.
The present invention can decide according to the concrete condition of site operation for the use of auxiliary mould, as simultaneously installation of all auxiliary moulds required in the floating ballast bed interval being carried out the laying of floating ballast bed precast plate again, after finishing, all floating ballast bed precast plates layings again auxiliary mould is taken out; Also first auxiliary mould can be installed first, then lay the floating ballast bed precast plate that is positioned at the one side, then lay the adjacent floating ballast bed precast plate that is positioned at its opposite side, and in the adjacent floating ballast bed precast plate of laying, second auxiliary mould is installed, and with first auxiliary mould taking-up, the rest may be inferred, until lay all the floating ballast bed precast plates in the floating ballast bed interval complete; Certainly, also can adopt several auxiliary moulds are installed first after, carry out again the laying of floating ballast bed precast plate according to above-mentioned method.
The floating ballast bed precast plate of in floating ballast bed interval all is all laid and is finished, and connect as one floating ballast bed after, need finish successively follow-up work, concrete steps are as follows:
At first, according to the mounting method of the floating ballast bed rail of routine, construct the circuit bearing of trend floating ballast bed along institute, laying finish floating ballast bed two arrange tracks installation rail and rail fastenings;
Then, position according to each floating ballast bed precast plate inside and outside sleeve device, the vibration isolator inner sleeve is installed within it (as shown in figure 13) successively, and all the vibration isolator inner sleeves in the floating ballast bed interval are carried out Integral levelling, according to the job practices of the floating ballast bed precast plate of prior art the vibration isolator inner sleeve is carried out jacking again;
Then, utilize rail fastening that the geometric shape that is installed in floating ballast bed upper rail is carried out accurate adjustment;
At last, at the floating ballast bed fixture of installing, as sealing device is installed between the floating ballast bed left and right sides and the tunnel wall and between adjacent floating ballast bed precast plate 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.
In the present invention, the first sleeve pipe and the second sleeve pipe be cast on the precast plate main body and with the holistic steel sleeve of its formation, when floating ballast bed stressing conditions is more satisfactory, steel sleeve directly is connected with high-strength bolt, this moment, steel sleeve was the model corresponding with high-strength bolt, and the 3rd sleeve pipe adopts pre-buried nylon sleeve and the connected mode of high-strength bolt; When floating ballast bed stressing conditions is complicated, at the first sleeve pipe and the second inside pipe casing a nylon sleeve that removably connects with it (as shown in figure 15) is installed, then be connected with high-strength bolt by nylon sleeve.The 3rd sleeve pipe of this moment also can adopt the inner detachable mode that a nylon sleeve is installed of steel sleeve, and is corresponding, in the man-hour that adds of carrying out floating ballast bed precast plate, the 3rd sleeve pipe should be cast on the precast plate main body and with its formation one integral body.When adopting inner detachable installation one nylon sleeve of steel sleeve, steel sleeve is made by stainless steel material, after the nylon sleeve inefficacy of installing in the inner, utilize simple tool rapidly the nylon sleeve that lost efficacy to be changed, thereby improve maintainability and the operation safety of circuit, effectively reduce operation maintenance cost.
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. the job practices that the new precast panel pin-connected panel is floating ballast bed is characterized in that, comprises the steps:
1) lays the central lines of track of floating ballast bed substrate and be used for locating the Additional benchmark of a plurality of floating ballast bed precast plates to be laid;
2) lay the lifting control line of each floating ballast bed precast plate and to the tool locating hole of its auxiliary positioning;
3) according to described tool locating hole auxiliary mould is installed, and according to auxiliary mould and described lifting control line a plurality of floating ballast bed precast plates are installed in the described floating ballast bed substrate successively, and after every precast plate carried out accurate adjustment, connect become one floating ballast bed;
4) the vibration isolator inner sleeve is installed in successively in described each floating ballast bed precast plate, and to described floating ballast bed carry out Integral levelling and jacking.
2. the floating ballast bed job practices of new precast panel pin-connected panel according to claim 1, it is characterized in that, before constructing according to described step 1), 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.
3. the floating ballast bed job practices of new precast panel pin-connected panel according to claim 2, it is characterized in that, after reinforcing bar binding and concrete pouring construction are carried out in described floating ballast bed substrate, before constructing according to described step 1), 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.
4. the floating ballast bed job practices of new precast panel pin-connected panel according to claim 3 is characterized in that described step 3) comprises:
31) according to described tool locating hole auxiliary mould is installed, and according to auxiliary mould and described lifting control line in described floating ballast bed substrate, lay a floating ballast bed precast plate;
32) then lay another adjacent floating ballast bed precast plate;
33) position of the adjacent floating ballast bed precast plate of accurate adjustment two, and two adjacent floating ballast bed precast plates are connected as one;
34) repeating step 32) and 33), lay successively a plurality of floating ballast bed precast plates, so that the shape all-in-one-piece is floating ballast bed.
5. the floating ballast bed job practices of new precast panel pin-connected panel according to claim 4, it is characterized in that, in described step 32) in, behind the position of the floating ballast bed precast plate that accurate adjustment two is adjacent, adopt a plurality of level connection joint plated constructions that two adjacent floating ballast bed precast plates are connected successively, then with a plurality of side-mounted shear plates two adjacent floating ballast bed precast plates are connected successively, so that the shape all-in-one-piece is floating ballast bed.
6. the floating ballast bed job practices of new precast panel pin-connected panel according to claim 5 is characterized in that described step 4) also comprises:
Before the installation of carrying out the vibration isolator inner sleeve, need rail and rail fastening are installed on described each floating ballast bed precast plate successively;
To described floating ballast bed carry out Integral levelling and jacking after, the geometric shape of the floating ballast bed upper rail of accurate adjustment, and fixture is installed.
7. the floating ballast bed job practices of each described new precast panel pin-connected panel according to claim 1-6 is characterized in that described floating ballast bed precast plate comprises:
Precast plate main body (1), its both ends are provided with respectively be used to the groove structure of settling side-mounted shear plate (90) (2);
Two row's tracks (3) are placed in precast plate main body (1) upper surface;
Be used for settling the outer sleeve device (4) of vibration isolator inner sleeve, corresponding track (3) arranges;
Be placed in a plurality of the first sleeve pipes (7) in the precast plate main body (1), it is positioned at the both sides of described groove structure (2);
Be placed in the sleeve pipe group of precast plate main body (1) two side corner sections.
8. the floating ballast bed job practices of new precast panel pin-connected panel according to claim 7 is characterized in that described auxiliary mould comprises:
The frock body, the formed cavity size of groove structure is complementary between its physical dimension and two adjacent floating ballast bed precast plates;
The alignment pin of being located at frock body bottom and cooperating with described tool locating hole.
9. the floating ballast bed job practices of new precast panel pin-connected panel according to claim 8 is characterized in that, per two tracks are one group in the described track of every row, settles a described outer sleeve device (4) between two tracks of every group.
10. the floating ballast bed job practices of new precast panel pin-connected panel according to claim 9 is characterized in that:
Described side-mounted shear plate (90) comprising:
V-shaped two wing plates (91), and two wing plates (91) are connected with vertical side of two adjacent floating ballast bed precast plate upper groove structures respectively;
With the stiffener (92) that two wing plates (91) are connected respectively, be used for strengthening the bonding strength of two wing plates; Described level connection joint plated construction (80) comprising:
Junction plate (81) which is provided with the bolt hole with the corresponding setting of described the second sleeve pipe (5);
High-strength bolt (82) passes respectively bolt hole and sleeve pipe described junction plate (81) is connected in two adjacent floating ballast bed precast plates.
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| CN201210452432.7A CN102899996B (en) | 2012-11-13 | 2012-11-13 | Novel construction method of precast slab assembled floating road 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 |
| 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 |
| CN109183522A (en) * | 2018-10-12 | 2019-01-11 | 株洲时代新材料科技股份有限公司 | A kind of floating board connecting equipment of prefabricated and its construction method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| 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 |
| CN109183522A (en) * | 2018-10-12 | 2019-01-11 | 株洲时代新材料科技股份有限公司 | A kind of floating board connecting equipment of prefabricated and its construction method |
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| Publication number | Publication date |
|---|---|
| CN102899996B (en) | 2015-06-03 |
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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. |