CN105625104A

CN105625104A - Precast slab type vibration damping rail structural system and matched construction method

Info

Publication number: CN105625104A
Application number: CN201610013534.7A
Authority: CN
Inventors: 杨秀仁; 薛恒鹤; 陈鹏; 曲村; 吴建忠
Original assignee: Anhui Xingyu Rail Equipment Co Ltd; Beijing Urban Construction Design and Development Group Co Ltd
Current assignee: Anhui Xingyu Rail Equipment Co Ltd; Beijing Urban Construction Design and Development Group Co Ltd; Zhejiang Tiantie Industry Co Ltd
Priority date: 2016-01-11
Filing date: 2016-01-11
Publication date: 2016-06-01
Anticipated expiration: 2036-01-11
Also published as: EP3404142B1; WO2017121044A1; JP6961898B2; EP3404142A1; JP2019501320A; EP3404142A4; CN105625104B

Abstract

The invention relates to a precast slab type vibration damping rail structural system and a matched construction method. The rail structural system consists of steel rails, fasteners, precast slabs, an elastic cushion layer, a sealing sleeve, a longitudinal connecting device, a filling layer and the like, wherein the elastic cushion layer and the precast slabs can be compounded as a whole in a plant. According to the engineering needs, a track board can be reserved with 1-3 holes (for infusing the filling layer and observing an infusing state) which penetrate through the track board in a thickness direction, pre-formed holes for mounting supporting legs, a hole for mounting a measuring and positioning mark, an aligning mark for laying and positioning, a pre-embedded part for composite connecting of the elastic cushion layer, lifting pins for lifting, a pre-embedded part for longitudinally connecting the track board, a pre-embedded part for mounting a contact rail, and the like. The precast track board is laid by adopting laying equipment such as a plate transporter, a crane trolley, a fine-tuning trolley and the like, so that the precast slab type vibration damping rail structural system has the characteristics of a simple construction process, high construction speed, high construction speed, good rail smoothness and low labor intensity; and the convenience problem of replacing the track board and the elastic cushion layer after operation is solved.

Description

A kind of Prefabricated slab type vibration damping track system and matching operation method

Technical field

The present invention relates to the vibration damping field of track traffic, particularly relate to a kind of Prefabricated slab type vibration damping track system and matching operation method.

Background technology

Along with the large scale networkization of urban track traffic develops, day Construction of Urban Rail Traffic duration is becoming tight, track structure working procedure opens the service time because more closing on, duration pressure is especially prominent, the duration of laying a railway track of a general subway line about 9 months be often compressed into 6 months even shorter, traditional track structure pattern determine its construction operation link many, based on manual work, the feature such as construction precision is wayward and construction speed is slow. When the integral construction duration was compressed with the duration of laying a railway track, having had a strong impact on construction precision and quality of laying a railway track, caused that the Track regularity put into effect and the comfortableness running vehicle are deteriorated, and track disease takes place frequently, ambient vibration and noise problem are aggravated.

Tradition vibration damping track adopts the construction method of on-the-spot assembling reinforcement, cast-in-place concrete, the speed of application of general every day is 25m to 50m, construction number needs 80 to 100 people, cast-in-place concrete amount is big, especially owing to the scope of operation is narrow and substantial amounts of manual work link causes that construction precision is not high, work efficiency is low in shield tunnel, and security risk is higher, the cost of design, construction and maintenance is consequently increased. Additionally, the diseases of railway line in cast-in-place damper rail location happens occasionally, such as railway roadbed easily cracking etc.

For this, the designer of the present invention is in view of drawbacks described above, through design and substantial amounts of experimental study with great concentration, it is proposed that a kind of Prefabricated slab type vibration damping track system, and the rapid constructing method supporting with this structure and construction equipment, with the many defects overcoming current vibration damping track system to exist.

Summary of the invention

It is an object of the invention to provide a kind of track traffic new precast panel formula, the adjustable vibration damping track system of damping property. This track structure system is applicable to various track vibration-reducing demands, employing batch production manufactures, realize increasingly automated special equipment to lay, there is the features such as speed of application is fast, track structure precision is high, Track regularity is good, can effectively overcome existing track structure system (including vibration damping and non-vibration damping track) Problems existing.

For solving the problems referred to above, the invention discloses a kind of new precast panel formula vibration damping track system and matching operation engineering method.

The damping property of new precast panel formula vibration damping track system is adjustable, lay suitable in manual or automaticization special equipment, adjustable interim vertical supporting device (supporting leg) is adopted to support, this track structure system comprises the high-precision orbital plate of prefabrication successively, the compound (can factory in compound or the job site compound) elastic insert on track plates surface in a special manner, the interim vertical supporting device of adjustable support height, the cast-in-place self-compacting concrete of after casting type track plates spud pile and track plates bottom or other etc. mobility tie rigid backfilling material preferably. the main construction technology order of new precast panel formula damper rail is: factory or produced on-site precast track plate structure �� factory or on-the-spot combined vibration-damping bed course �� employings Special decking equipment track plates carried out hi-Fix �� utilize vertical supporting device track plates is fixed temporarily �� once or point irrigate the Concrete Filled layer below track plates several times.

1, levying of new precast panel formula vibration damping track system is in that:

1) at factory or the on-the-spot employing prefabricated high-precision armored concrete track plates of high-precision mold.

2) track plates upper surface is horizontal plane or herringbone slope form. Track plates section is polygon, both sides, circular tunnel location are slope structure, to strengthen the adaptability to tunnel cross-section, rectangle, horse-shoe tunnel section location track plates section can be rectangular cross section, it is possible to both sides the same as circular tunnel section are slope form.

3) the special support rail boss of track plates surface configuration, boss is installed the fastener connecting rail.

4) in plate, bar spacing presses certain modulus (such as 25mm, 50mm integral multiple) and arrangements, it is achieved that the automated production of bar-mat reinforcement in plate.

5) for meeting special construction and the reserved corresponding hole of use needs and pre-buried parts on track plates, following aspect (can adopt) is mainly included according to real needs selectivity:

(1) built-in fitting (nylon sleeve etc.) of rail fastening is installed;

(2) 1-3 the hole (under, plate reserved for the position of the building of packed layer under plate, spud pile, packed layer builds the observation etc. of situation) of penetrating orbit plate thickness direction;

(3) for installing the interim location reserved mounting condition of vertical supporting device. Vertical supporting device may be installed in plate or the position of plate side.

(4) for the automatic pre-buried mounting condition of measurement and positioning mark. By service sleeve in plate or directly utilize the modes such as fastener for installing sleeve pipe and realize;

(5) for the centering labelling of track slab pavement location;

(6) built-in fitting of pre-buried elastic insert composite joint. Connecting pre-buried built-in fitting can be bolt collar, expansion bolt fixing end, simple and easy swollen bolt even wooden pre-pile anchoring etc., it is possible to realized the compound of precoated plate and cushion by the mode such as preformed groove or pre-buried channel flow;

(7) 3-4 Special-purpose hanger nail of pre-buried lifting;

(8) built-in fitting that reserved track plate is longitudinally connected;

(9) the pre-buried parts (if desired) etc. of pre-buried installation conductor rail.

2, in factory or job site vibration damping bed course is compounded in bottom precast track plate and side, it is achieved plate, pad one. Its main points are:

1) vibration damping bed course adopts elastomeric material, including different structure and the shock-reducing rubber sheet material of tectonic type, the polyurethanes sheet material material with elasticity and damping property similar to other;

2) for meeting the needs of different vibration damping grade, vibration damping bed course can adopt three kinds of laying methods such as completely laying bottom track plates, strip laying and point-like laying. When elastic insert is face support, the lower surface of track plates is laid on the whole upper surface of elastic insert. When elastic insert is ribbon support, elastic insert comprises at least two parallel elastic support bars, and the lower surface of described track plates is layed on two elastic support bars end faces. When elastic insert supports for point, comprising multiple spaced cuboid, cylinder, round platform or prismoid shaped elastic insert, the lower surface of described track plates is layed on the support of the plurality of DISCRETE ELASTIC SUPPORTS;

3) vibration damping bed course and track plates be connected by the distinctive method of attachment not affecting cushion blocking performance;

4) pouring into bed course gap for the fill concrete bottom preventing causes cushion blocking elastic loss even to be lost efficacy, at track plates osseotomy site, arranging the special bottom elastic packing sleeve with " the brim of a hat ", " the brim of a hat " bottom seal sleeve is effectively sealed with cushion blocking bottom surface and is connected. Seal sleeve also has isolation track plates and location spud pile, avoid being made directly hard contact the effect allowing track plates freely up and down to deform and not retrained by guide pile, to reach namely to realize the flexibly positioned of track plates, avoid stress to concentrate, also ensure that the effect of loss does not occur track plates elasticity;

5) combined vibration-damping bed course and plate end bottom track plates, plate side are one-body molded, be the pattern of gumshoe (jacket) after described cushion blocking formable layer, and the bottom of cushion blocking and side are as a whole. The major function of side bed course is to realize track plates and the concrete elastomeric isolation of periphery, the binder course that during to avoid constructing, concrete pours between cushion blocking and track plates, and ensureing track plates freely up and down to deform and unfettered, it is to avoid the situation of vibration damping " short circuit " occurs. The major function of bottom cushion is to provide track plates elasticity, it is achieved the vibration-damping function of track structure system;

6) as required, at the position that elastic insert exposes, seal approach can be set, to prevent dust, dirt or subsoil water in construction, operation process from entering binder course.

3, in factory or after vibration damping bed course is compounded on precast track plate by job site, plate being transported to the scene of laying a railway track, main working procedure is as follows:

1) plate is transported to scene by fortune wooden handcart (band boatswain chair, unload plate function);

2) track plates is placed on accurate adjustment chassis.

3) track plates placed thereon can be carried out the adjustment of multiple degrees of freedom (longitudinally, laterally, rotating and elevation etc.) by accurate adjustment chassis according to tuned plate instruction, completes track slab precision adjustment location. Including: adjust the surveying marker that panel control system commander's total powerstation is opposite on track plates automatically to measure; The position of track plates, spatial attitude and the deviation with design attitude is calculated according to measurement result; Tuned plate instruction is sent to accurate adjustment chassis; Accurate adjustment chassis completes adjustment action, and repeatedly said procedure, until track plates is adjusted in place.

3) utilizing the special vertical supporting device of track plates of adjustment height, track plates space morpheme accurate adjustment put in place supports, fixes. Every piece of track plates is arranged as required to several strong points, and vertical supporting device may be provided in plate, it is possible to be arranged on plate side. Domatic for adapting to bottom tunnel structure structure that may be present, vertical supporting bottom of device is provided with the universal adjustable ball bulb backing plate that can independently adapt to domatic angle. Vertical supporting device adopts detachable and recycling design. Vertical supporting device should ensure that track plates remains absolute stability, in order to track plates positional precision meets the error requirements of accurate adjustment all the time under follow-up perfusion plate during packed layer.

4) Concrete Filled layer under perfusion plate. It is irrigated by fill orifice reserved in track plates. For avoiding because affecting track plates precision after track plates floating in packed layer filling process, packed layer perfusion can divide 2��3 perfusions to put in place.

5) when packed layer irrigates and reaches some strength, taking out vertical supporting device, the movable balls hook plate bottom it automatically departs from a support arrangement and stays in concrete. Can removing smoothly in order to ensure a support arrangement, supporting body structure is arranged in the part of concrete and adopts cone form, and is provided with central exhaust port.

6) installation of fastener. After packed layer reaches some strength, carrying out the installation of track plates upper buckle accessory, adopt track plate transport vehicle to transport snap fit part to the scope of operation, erection sequence is resilient sleeper-bearing under resilient sleeper-bearing �� iron chair �� rail under plate.

7) installation of rail. Adopt track transport vehicle by rail to the scope of operation, and rail unloaded to installing to put by transport vehicle and spread out, by manual type, rail is allocated in iron chair rail support groove, and track gauge block, connecting bolt and spring are installed.

According to said structure and matching operation engineering method, the Prefabricated slab type vibration damping track system of the present invention and matching operation method are by adopting precast track plate, vibration damping bed course, track structure system is made to be provided with vibration-damping function, the vibration problem that track traffic brings can be solved well, by lifting reserved in plate, plate pad compound, track plates is measured, packed layer perfusion under track plates, the laying location of plate, the fixing built-in fitting waiting several functions purposes of plate or mounting condition, and adopt fortune wooden handcart, the equipments of laying a railway track such as plate suspension vehicle and accurate adjustment chassis, achieve the lifting of plate, lay and be accurately positioned, well solve quickly, high accuracy construction and the track plates in later stage, elastic insert changes problem. there is the features such as working procedure is simple, speed of application is fast, construction precision is high, orbital forcing is good, labor intensity is low.

The detailed content of the present invention can be obtained by explanation described later and institute's accompanying drawing.

Accompanying drawing explanation

Fig. 1 shows the structural representation of the prefabricated vibration damping track system of the present invention

Fig. 2 shows the top view that face of the present invention supports

Fig. 3 shows the point-supported top view of the present invention

Fig. 4 shows the top view of ribbon support of the present invention

Fig. 5 shows that plate of the present invention fixes schematic diagram during plate by adjusting lever after being adjusted in place

Fig. 6 shows that the present invention transports the structural representation of wooden handcart

Fig. 7 shows the structural representation of trolley of the present invention

Fig. 8 shows that the present invention has the trolley structural representation of accurate adjustment function

Fig. 9 shows the structural representation of accurate adjustment chassis of the present invention

Detailed description of the invention

Referring to Fig. 1, the present invention relates to a kind of prefabricated vibration damping track system, described prefabricated vibration damping track system is Multi-layer design, comprises packed layer 1, elastic insert 4 and track plates 6 from bottom to up successively.

Wherein, packed layer 1 is the bottom, and elastic insert 4 is layed on packed layer 1, it is preferred that this packed layer is made up of self-compacting concrete, thus providing good mobility when perfusion, and is provided that good support effect. The end of elastic insert 4 is encapsulant (material such as polyurethane sealant) 15, to guarantee that dust, foreign material, water etc. do not enter the gap between elastic insert 4 and track 6 or elastic insert 4 and packed layer 1.

This elastic insert 4 is arranged on packed layer 1, and to provide the elastic buffer of packed layer 1, it is to avoid its Rapid Damage, optionally, this elastic insert 4 described adopts rubber or polyurethane elastomeric material to make, it is possible to provide well effectiveness in vibration suppression.

This track plates 6 is arranged on elastic insert 4 to carry out vibration damping, and described track plates 6 is provided with parallel two bar rail 7, and each rail 7 is fixed on this track plates 6 respectively through multiple fasteners 5.

Optionally, described elastic insert 4 can support (referring to Fig. 2) for face, point supports (referring to Fig. 3) and three kinds of modes of ribbon support (referring to Fig. 4).

In the face shown in Fig. 2 supports, the lower surface of track plates 6 is laid in the whole upper surface of elastic insert 4, the sidepiece of described elastic insert 4 integral coating bottom in track plates 6 and both sides.

In the point shown in Fig. 3 supports, described elastic insert 4 comprises multiple spaced cuboid, cylinder, round platform or prismoid shaped elastic insert 4, and the lower surface of described track plates 6 is layed on the plurality of elastic insert.

In the ribbon support shown in Fig. 4, described elastic insert 4 comprises at least two parallel elastic support bars, and the lower surface of described track plates 6 is layed on the end face of two elastic support bars.

Optionally, described track plates 6 section is symmetrically arranged polygon, and its both sides are ramp structure, to strengthen the adaptability to tunnel cross-section.

Described track plates 6 upper surface is horizontal plane or with slope, and its upper surface can have boss, and boss surface is horizontal plane or inclined-plane.

The upper surface of track plates 6 is reserved with 4 liftings, the Heave Here 11 laid, the labelling 14 of centering, the preformed hole 12 of fixed adjustment plate, installs the prism available fastener for installing nylon sleeve in hole, it is possible to special pre-buried nylon sleeve in plate.

Wherein, the both sides of described track plates 6 can be provided with one-above-the-other layout 10, it is attached between track plates 6 thereby through one-above-the-other layout 10, better avoid the mutual changing of the relative positions between plate, wherein, described one-above-the-other layout 10 can comprise the multiple installing holes on track plates 6 and the connection strap being secured by bolts in installing hole, thus adopting longitudinally connected mode between two pieces of precoated plates.

Wherein, the middle part of described track plates 6 arranges two circular cavities 2, and described hole 2 penetrates track plates 6 and elastic insert 4, after irrigating packed layer by hole 2, forms the position limiting pile of plate.

Wherein, being provided with sealing shroud 3 in described hole 2, described sealing shroud is the cylindrical structure that elastomeric material is made, it is ensured that when paying close attention to packed layer in hole, it is to avoid packing material enters between plate and elastic insert, causes that vibration damping lost efficacy. Between plate and position limiting pile, form cushioning effect simultaneously.

Wherein, described track plates 6 adopts factorial praluction, elastic insert and track plates are combined into one (in particular cases elastic insert also can be laid at the scene) in factory, after utilizing fortune wooden handcart to be transported to scene, after fine tuning platform car bed board, accurate adjustment, after adopting adjusting lever 14 to fix plate, perfusion packed layer also lays gapless track.

Wherein, the both sides of described track plates 6 are arranged can be provided with gutter 8, and elastic insert 4 bottom can arrange ditch (now gutter 8 can not set) or be not provided with ditch.

For providing the precoated plate vibration damping track system of the present invention, should carrying out effective compound when prefabricated, wherein, the complex method of described track vibration-reducing structure comprises:

Step one: track plate prefabrication

In factory, complete reinforcing bar binding in track plates, track plates concreting, and after prefabricated completing, carry out track plates health preserving, the maintenance measures such as covering, water-retention, thin film moisturizing, spraying or brushing sealing compound can be adopted.

Step 2: plate pad compound

After track plates health preserving, the bottom surface of track plates, inclined-plane and side are coated with cushion blocking, and this cushion blocking is under plate end, plate, plate side is one-body molded, it is to avoid cut and secondary couples. The Combined Mining of vibration damping bed course and track plates is with the distinctive complex method not affecting cushion blocking performance.

The matching operation engineering method of the present invention mainly comprises the steps of:

Step one: the transport of track plates

Use special fortune wooden handcart that track plate transporting is transported to operating location, track plates is lifted on fortune wooden handcart, fortune wooden handcart design has self-locking device, the automatic retaining rail guidance tape of self-locking device by track plates center and vehicle floor center automatic aligning, controls the position of transportation middle orbit plate. Fortune wooden handcart runs to the scope of operation, and track plates is unloaded to work surface by associated unloading mechanism automatically. Transport wooden handcart in tunnel and adopt flexible transport mode, referring to Fig. 6, the car body 16 that wooden handcart comprises carrying polylith track plates and the multiple EEF bogie 18 being positioned at car body lower end are transported in described tunnel, it is additionally provided with the belt type conveyer 17 that track plates can be put down in one end of fortune plate, automatic unloading mechanism 19, wherein, transport wooden handcart in described tunnel and be also equipped with driver's control room in front and back, in tunnel, fortune wooden handcart also can adjust running mechanism according to the difference of tunnel structure section simultaneously, to adapt to the traveling demand (plane base and curved surface basis) of different structure form.

Step 2, track plates handling

Special trolley can be sling being placed on the scope of operation plate that gets on the right track, and runs on tunnel inner circular shield wall, also can run in the horizontal plane, to adapt to various types of structural plane (i.e. plane base and curved surface basis). Referring to Fig. 7, Fig. 8, trolley is provided with body frame structure for automotive 20, can curved surface and plane up walk running mechanism 21, control the upper and lower lifting mechanism 22 of track plates, also comprise control system 23, hydraulic system 25, alignment system 24 etc.

Step 3, track plates accurate adjustment

The accurate adjustment of track plates can adopt two schemes, respectively:

1, scheme 1

Special trolley designs fine-tuning mechanism and accuracy-control system. Referring to Fig. 8, mainly comprise: body frame structure for automotive 20 and front and back running mechanism 21, described body frame structure for automotive 20 is provided with adjustment oil cylinder 22, described adjustment oil cylinder 22 can comprise two and longitudinally regulate oil cylinder and two transverse adjusting oil cylinders, respectively through the adjusting rod being connected to track plates, track plates is adjusted, and measurement device feedback data can be passed through to static Control System of Trolley, tuned plate car can be automatically performed the elevation of track plates, the adjustment of center line location and superelevation, makes track plates position reach accurate adjustment permissible accuracy; Described running mechanism 21 adopts precise control system 23, feeds back to hydraulic system 25 by the measurement of total powerstation, by total station survey alignment system 24, it is achieved being accurately positioned of trolley, completes the accurate adjustment of track plates. After accurate adjustment completes, mounting rail guidance tape bracing frame 13, trapped orbit Board position on track plates, it is ensured that track plates follow-up build under-filled layer 1 time positional precision meet error requirements all the time.

2, scheme 2

Track plates is carried out accurate adjustment location by accurate adjustment chassis after being unloaded by track plates to the accurate adjustment chassis of research and development by special trolley.

Referring to Fig. 9. Affiliated accurate adjustment chassis mainly comprises: tractor 27, accurate adjustment trolley frame 26, rotary-tray 29, in length and breadth guided way 28 and 30, height adjustment cylinders 31 etc. Quiet tune Control System of Trolley is given, it is achieved the automatic adjustment of track plates attitude by measurement device feedback data. After utilizing core rotary-tray 29 to rotate and make the axis of track plates parallel with central lines of track, locking rotary freedom. Utilization longitudinal 28 and cross slide way 30 adjust displacement disc along line direction and the position being perpendicular to line direction, and the projected position (horizontal level) of the plate that got on the right track by displacement disc is adjusted in place. The vertical jack 31 that adjusts being located on travel mechanism is utilized to adjust track plates elevation. Track plates position is finally made to reach accurate adjustment permissible accuracy. After accurate adjustment completes, mounting rail guidance tape bracing frame 13, trapped orbit Board position on track plates, it is ensured that track plates follow-up build under-filled layer 1 time positional precision meet error requirements all the time.

Step 2: filling concrete

Filling concrete can be carried out after checking cushion blocking and track plates combining case and cushion blocking surrounding sealing condition. The under-filled layer of track plates adopts self-compacting concrete material.

Described self-compacting concrete builds the mode adopting job mix. Self-compacting concrete should be packed, and transport, to scene, adopts mixing plant to complete concrete mix, and mix uniformly adopts the conveyance conduit carried to be irrigated by fill orifice (positive stop lug boss of holding concurrently) reserved in track plates afterwards.

Wherein, for reaching any surface finish and increasing degree of compaction during self-compacting concrete perfusion, can be inserted into small vibrator auxiliary and vibrate.

After perfusion, quiet stopping causes concrete settlement because bubble overflows in process, supplements the perfusion absolute altitude to defined before concrete initial set. For avoiding because affecting track plates precision after track plates floating in packed layer filling process, packed layer perfusion can divide 2 perfusions to put in place, and the 1st perfusion is to 50mm above at the bottom of plate, in further perfusion after concrete final set.

Step 3: snap fit part is laid

After self-compacting concrete reaches some strength, carrying out the installation of track plates upper buckle accessory, adopt track plate transport vehicle to transport snap fit part to the scope of operation, erection sequence is rubber mat plate �� iron chair �� rubber tie plate under rail under plate.

Step 4: steel rail laying

Adopt track plate transport vehicle by rail to the scope of operation, and rail unloaded to installing to put by transport vehicle and spread out, by manual type, rail is allocated in iron chair rail support groove, and be welded to connect after track gauge block, connecting bolt and spring are installed.

Present invention have the advantage that

1, version can better adapt to the size of Shield-bored tunnels, and civil engineering error impact on track laying is greatly reduced.

2, adopt precoated plate structure, improve laying progress and construction quality, enhance the reliability of track structure system, and outward appearance is more aesthetically pleasing.

3, adopt the mode of precoated plate and elastic insert factory compound, it may be achieved protection to plate when handling, top load-bearing, and because eliminating the link of on-the-spot laying cushion, improve construction speed.

4, plate have employed reserved Heave Here, the many kinds of measures such as centering labelling, adjusting lever installing hole, measuring prism installing hole, it is achieved that track plates quick, accurately construct, and improve the convertibility of vibration damping track system.

5, self-compacting concrete perfusion, the mobility of Concrete Structure, it is ensured that concrete degree of compaction under track plates are adopted.

6, the one-shot forming of stopping means and lower concrete is achieved.

7, adopting the accurate adjustment table system developed voluntarily to carry out bed board construction, working procedure is simple, and construction speed is significantly accelerated, and lays precision height, and labor intensity is greatly reduced.

Thus, the slab track vibration reduction structure machine matching operation engineering method of the present invention can be used for field of track traffic, not only damping property can carry out targeted design according to demand, and there is the features such as working procedure is simple, speed of application is fast, construction precision is high, orbital forcing is good, labor intensity is low, meeting current orbit traffic environment-friendly, efficiently and to reduce the direction of disease, social benefit huge, it can effectively reduce urban rail transit vehicles and run the vibration and secondary structure noise problem that produce.

It is readily apparent that above description and record are only illustrate rather than in order to limit the disclosure, application or use. Although describing in an embodiment and being described in the drawings embodiment, but the present invention be not intended to by accompanying drawing example and be described as in an embodiment it is now recognized that optimal mode with the specific examples that present invention teach that of enforcement, the scope of the present invention will include any embodiment falling into description and appended claims above.

Claims

1. a Prefabricated slab type vibration damping track system, it is characterised in that:

Described prefabricated vibration damping track system comprises packed layer, elastic insert and track plates from bottom to up successively, elastic insert is layed on packed layer, this packed layer is made up of the good concrete material of the mobility such as self-compacting concrete, thus providing good mobility when perfusion, and it is provided that good support effect, elastic insert and precoated plate are combined into one, this track plates is arranged on elastic insert to carry out vibration damping, described track plates is provided with parallel two bar rail, and each rail is fixed on this track plates respectively through multiple fasteners.

2. vibration damping track system as claimed in claim 1, it is characterized in that: described elastic insert is that face supports or point supports or ribbon support, in face supports, the lower surface of track plates is laid in the whole upper surface of elastic insert, in a support, described elastic insert comprises multiple spaced cuboid, cylinder, round platform or prismoid shaped elastic insert, the lower surface of described track plates is layed on the plurality of elastic insert, in ribbon support, described elastic insert comprises at least two parallel elastic support bars, the lower surface of described track plates is layed on the end face of two elastic support bars.

3. vibration damping track system as claimed in claim 1, it is characterised in that: track plates upper surface is horizontal plane or herringbone slope, and track plates section is polygon, and both sides, circular tunnel location are that ramp structure is to strengthen the adaptability to tunnel cross-section.

4. vibration damping track system as claimed in claim 1, it is characterised in that: track plates there is 1-3 hole of penetrating orbit plate thickness direction reserve for the position of the building of packed layer under plate, spud pile, packed layer builds situation under plate observation.

5. vibration damping track system as described in claim 1, it is characterized in that: track plates is provided with the reserved mounting structure of the supporting leg installing interim location, described supporting leg is by plate or the installing to carry to be threaded through on sleeve arrangement and supporting leg and fix with the threaded engagement in sleeve and adjust of plate side.

6. vibration damping track system as described in claim 1, it is characterised in that: having automatic measurement and positioning mark pre-buried structure on track plates, described mark pre-buried structure comprises the service sleeve in plate or fastener for installing sleeve pipe.

7. vibration damping track system as described in claim 1, it is characterised in that: the centering labelling that on track plates, promising bed board location is arranged.

8. vibration damping track system as described in claim 1, it is characterised in that: track plates has 3-4 Special-purpose hanger nail of pre-buried lifting.

9. vibration damping track system as described in claim 1, it is characterised in that: track plates end arranges longitudinally connected built-in fitting.

10. vibration damping track system as described in claim 1, it is characterised in that: track plates installs the pre-buried parts of conductor rail.

11. vibration damping track system as claimed in claim 1, it is characterised in that: in plate, bar spacing is arranged by certain modulus, it is simple to the automated production of bar-mat reinforcement.

12. vibration damping track system as described in claim 1, it is characterized in that: elastic insert is provided with the built-in fitting of composite joint, built-in fitting is bolt collar, the fixing end of expansion bolt, simple and easy swollen bolt or wooden pre-pile anchoring, moreover it is possible to realized the compound of precoated plate and cushion by the mode such as preformed groove or pre-buried channel flow.

13. vibration damping track system as described in claim 1, it is characterised in that: vibration damping bed course is connected by the distinctive method of attachment not affecting cushion blocking performance with track plates.

14. vibration damping track system as described in claim 1, it is characterised in that: bottom track plates, combined vibration-damping bed course can adopt with side bed course and separate or integration, unequal rigidity design.

15. the matching operation engineering method of the Prefabricated slab type vibration damping track system as described in arbitrary in claim 1-14, comprise the steps of:

Step one: the transport of track plates and laying;

Step 2: filling concrete;

Cleaning tunnel basis hydrops, and concrete construction can be carried out after checking cushion blocking and track plates combining case and cushion blocking surrounding sealing condition; Track plates bottom concrete adopts the concrete material of the good fluidities such as self-compacting concrete;

Step 3: concrete curing;

Step 4: snap fit part is laid;

Step 5: steel rail laying.

16. matching operation engineering method as claimed in claim 6, it is characterised in that comprise in step one:

1) plate is transported to scene by fortune wooden handcart, and fortune wooden handcart also can adjust running mechanism according to the difference of tunnel structure section, to adapt to the traveling demand of different structure form;

2) special trolley will be placed on the scope of operation plate that gets on the right track and sling, and run on tunnel inner circular shield wall, also can run in the horizontal plane, to adapt to various types of structural plane;

3) accurate adjustment of track plates has two ways, namely carry out on special accurate adjustment chassis or the trolley with accurate adjustment function, according to tuned plate instruction, track plates placed thereon is carried out the adjustment of multiple degrees of freedom (longitudinally, laterally, rotation and elevation etc.), complete track slab precision adjustment location, including: adjust the surveying marker that panel control system commander's total powerstation is opposite on track plates automatically to measure; The position of track plates, spatial attitude and the deviation with design attitude is calculated according to measurement result; Tuned plate instruction is sent to fine-tuning mechanism; Fine-tuning mechanism completes adjustment action, and repeatedly said procedure, until track plates is adjusted in place;

4) after accurate adjustment completes, adopt the precoated plate after the fixing accurate adjustment of adjustable supporting leg, supporting leg may be installed in plate or the position of plate side, supporting leg should ensure that track plates remains absolute stability, in order to track plates positional precision meets the error requirements of accurate adjustment all the time under follow-up perfusion plate during packed layer.