CN103243619B - Slab-type replaceable combined ballast bed system and construction process - Google Patents
Slab-type replaceable combined ballast bed system and construction process Download PDFInfo
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- CN103243619B CN103243619B CN201310150786.0A CN201310150786A CN103243619B CN 103243619 B CN103243619 B CN 103243619B CN 201310150786 A CN201310150786 A CN 201310150786A CN 103243619 B CN103243619 B CN 103243619B
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Abstract
The invention belongs to the technical field of tracks and discloses a slab-type replaceable combined ballast bed system and a construction process. The slab-type replaceable combined ballast bed system comprises a ballast bed foundation (8), a ballast bed vibration-damping pad (5) and a ballast bed slab (4), limiting grooves with notch structures are arranged at all four corners of the ballast bed slab, the ballast bed foundation (8) is provided with two rows of positioning retaining platforms used for corresponding to the limiting grooves, a CA mortar grouting layer (6) is arranged between the ballast bed foundation (8) and the ballast bed vibration-damping pad (5), an isolating layer (23) is arranged between the CA mortar grouting layer (6) and the ballast bed vibration-damping pad (5), and the ballast bed system is provided with a positioning device enabling the ballast bed vibration-damping pad to be positioned relatively to the CA mortar grouting layer (6). Replaceability of the ballast bed vibration-damping pad and high-end vibration damping performance of the whole combined ballast bed system are realized, the service life of the ballast bed vibration-damping system is prolonged, and maintainability of the ballast bed vibration-damping system is improved.
Description
Technical field
The invention belongs to railway technology field, be specifically related to a kind of board-like replaceable combination ballast bed system and construction technology.
Background technology
In recent years, China's passenger dedicated railway line and inter-city rail transit engineering construction achieve develop rapidly.In order to ensure the high ride of track engineering lasting stability, the construction standard of passenger dedicated railway line is more and more higher, construction technical requirement is more and more newer, construction quality management is more and more tighter.
At present, domestic damping products structure is still unreasonable, the basic dependence on import of high-end above damping products, wherein most is representational be domestic high-end vibration damping section substantially monopolize by external damping products (the high-end damping products steel spring floating slab road bed as the development of German GERB company), even likely make domestic high-end vibration damping section become the test section of external damping products.
The situation of and special road section vibration reducing measure main dependence on import high-grade for China's track traffic, adopt railway roadbed cushion blocking and high-performance vibration reduction fastener two kinds of vibration reducing measures and use, form board-like replaceable combination ballast bed system, but construction technology also exists difficulties and require study and inquire into.Especially the location of railway roadbed cushion blocking how is realized in whole combination ballast bed system and construction; How to realize the ride comfort of adjacent two pieces of road bed board; How to realize the high-end damping property of whole combined type ballast bed system; How to realize the replaceable of railway roadbed cushion blocking.
Summary of the invention
The object of the invention is to provide a kind of board-like replaceable combination ballast bed system and construction technology, can realize the high-performance vibration reduction of whole combination ballast bed system and the replaceable of combination ballast bed system.
The present invention adopts following technical scheme for achieving the above object:
A kind of board-like replaceable combination ballast bed system, described ballast bed system includes railway roadbed basis, railway roadbed cushion blocking and road bed board; Described road bed board is polylith, and polylith road bed board continuous print is layed in railway roadbed basis; There is centered by described road bed board the rectangular configuration of rectangular enclosure; Described railway roadbed cushion blocking is arranged between road bed board and railway roadbed basis; At the two ends of road bed board length direction, there is the short slot placing contiguous block; Road bed board described in adjacent two pieces is connected as a single entity by contiguous block; All there is stopper slot in the corner of road bed board, and described stopper slot is short slot structure; Described railway roadbed basis has and keep off platform for the location corresponding with the stopper slot that road bed board has, and described location gear platform is two rows, and often row is multiple; Each positioning platform is corresponding with two stopper slots on adjacent two pieces of road bed board and coordinate, and the gap had between described positioning platform and corresponding two stopper slots, filling elastic material in above-mentioned gap, during in order to cushion train operation road bed board stopper slot to location gear platform laterally, longitudinal surge; Described location gear platform, stopper slot and location gear platform and the elastomeric material between stopper slot jointly realize road bed board relative to railway roadbed basis location be separated; Described railway roadbed cushion blocking is two pieces that corresponding every block road bed board is arranged, and the railway roadbed cushion blocking described in two pieces is symmetricly set on the both sides of road bed board central rectangular cavity; Described railway roadbed cushion blocking be corresponding with road bed board shape and two ends with the structure of short slot; The CA mortar injection layer in order to carry out leveling to road bed board is provided with between described railway roadbed basis and railway roadbed cushion blocking; Described CA mortar injection layer is formed by pouring into CA mortar in CA mortar injection bag; The described CA mortar injection bag of CA mortar injection layer is two that corresponding every block road bed board is arranged, CA mortar injection bag described in two is symmetricly set on the both sides of road bed board central rectangular cavity, and the side of CA mortar injection bag described in two is stretched in the rectangular enclosure at road bed board center; Described CA mortar injection bag is the structures of two ends with short slot; Separation layer is set between described CA mortar injection layer and railway roadbed cushion blocking, makes described railway roadbed cushion blocking be removable separate type relative to CA mortar injection layer; Described separation layer is two that corresponding every block road bed board is arranged, and the separation layer described in two is symmetricly set on the both sides of road bed board central rectangular cavity; Described separation layer is the structures of two ends with short slot; Described road bed board has the built-in fitting II installing road bed board jacking system, in order to coordinate the installation of road bed board, and be convenient to the later stage replacing of railway roadbed cushion blocking, described built-in fitting II is many groups, and described built-in fitting II is positioned at the inwall of described road bed board central rectangular cavity; Described ballast bed system is provided with the positioner that described railway roadbed cushion blocking is located relative to CA mortar injection layer, and described positioner has rib.
The wall that two of road bed board length direction two ends short slot are relative has the built-in fitting I installing contiguous block; On described contiguous block, corresponding two pieces of road bed board arrange and have the connecting hole corresponding with built-in fitting I, and corresponding built-in fitting I is provided with connector I; In order to be mated, the spacing locating piece of vertical direction is carried out to road bed board in the arranged outside of contiguous block; Described locating piece has locating piece connecting hole, described locating piece connecting hole is corresponding with the connecting hole on contiguous block; Connecting hole on the junction plate corresponding with described locating piece connecting hole is U-shaped hole, and above-mentioned U-shaped hole is positioned at one end of junction plate, and the length travel being convenient to track plates regulates; The connecting hole being positioned at the junction plate other end is circular apertures; Described contiguous block has many toothrows arranged in parallel up and down, described many toothrows that contiguous block has are positioned on the bonding surface with locating piece; Described locating piece have many toothrows arranged in parallel up and down, many toothrows that locating piece has are meshed with the tooth on contiguous block, described contiguous block to be coordinated with built-in fitting on road bed board I by connector I and is connected as a single entity by adjacent two road bed board, road bed board described in formation is spacing in the vertical direction, and can carry out the structure of lengthwise position compensation.
Described built-in fitting I is sleeve pipe or connecting bolt, and described sleeve pipe has internal thread or has expansion bolt; Described connector I is connecting bolt or nut.
Described built-in fitting II is sleeve pipe or connecting bolt, and described sleeve pipe has internal thread or has expansion bolt.
The two ends of described CA mortar injection layer have the boss protruded upward, and the boss that the two ends of CA mortar injection layer have forms the rib of described positioner.
The two ends of described CA mortar injection layer are arranged in order to the cement convex as described positioner rib, and described cement convex and CA mortar injection layer are cast for one, and the height of described cement convex exceeds CA mortar injection layer upper surface 5mm ~ 30mm.
The two ends of described CA mortar injection layer are provided with angle steel, a right-angle side of angle steel is fixed on railway roadbed basis, another right-angle side of angle steel is positioned at the periphery of CA mortar injection layer as the rib of described positioner, and highly exceeds CA mortar injection layer upper surface 5mm ~ 30mm.
The soffit at described road bed board two ends has in order to the baffle plate as described positioner rib, and the lower surface of described baffle plate exceeds road bed board soffit 22 mm ~ 30mm, and described baffle plate is structure integrated with described road bed board.
The two ends of described road bed board are fixed with in order to the steel plate as described positioner rib, and described steel plate exceeds road bed board soffit 22 mm ~ 30mm.
A construction technology for board-like changeable type combination ballast bed system, is characterized in that: the concrete steps of described combination ballast bed system construction are as follows:
The first step: railway roadbed infrastructure and arrangement: drainage problem is considered in the construction on railway roadbed basis, is arranged on the centre on railway roadbed basis by gutter; After the complete and maintenance of railway roadbed infrastructure is complete, railway roadbed basis upper surface is cleared up, in case surface of base foreign material pierce through infusion bag in perfusion mortar process, cause mortar seepage, pollute road bed board and railway roadbed cushion blocking;
Second step: standard is arranged: arrange standard respectively in the both sides of road bed board, in order to accurately to locate the position of road bed board;
3rd step: lay CA mortar injection bag on railway roadbed basis; Described CA mortar injection bag is two that each block road bed board corresponding is arranged, make the CA mortar injection bag described in two corresponding with the position of the road bed board of required laying, the CA mortar injection bag described in two is laid on the both sides of the central rectangular cavity of the required road bed board laid; And with triangle timber wedge, CA mortar injection bag is located;
4th step: lay separation layer on each CA mortar injection bag;
5th step: lay railway roadbed cushion blocking on each separation layer;
6th step: by basic for road bed board contraposition, utilize track slab adjuster to support road bed board and utilize track slab adjuster and triangular compass to road bed board in the vertical direction, horizontal and vertically carry out accurate adjustment location; Mounting limit device between adjacent two pieces of road bed board, the two ends of stopping means coordinate with built-in fitting on positioning platform respectively by connecting hole, connector, the two ends of stopping means are separately fixed on the positioning platform on railway roadbed basis, and be pressed in the upper surface of adjacent two pieces of road bed board, two pieces of adjacent road bed board are located in vertical direction, and when preventing perfusion mortar, road bed board floats; The width of described stopping means is greater than the spacing between adjacent two pieces of road bed board;
By the built-in fitting II on described road bed board, road bed board jacking system is installed; And remove track slab adjuster;
7th step: pour into CA mortar being positioned at the CA mortar injection bag below road bed board;
8th step: pour into elastomeric material between location gear platform and stopper slot;
9th step: maintenance CA mortar and elastic spacing material;
Tenth step: remove stopping means and jacking system; Road bed board is installed and adjusts damping fastener and rail;
11 step: install contiguous block between adjacent two pieces of road bed board, adjacent two pieces of road bed board are integrally connected by the built-in fitting I on connector I, road bed board by described contiguous block, realize being rigidly connected between road bed board, ensure that and be not subjected to displacement between road bed board after installing, thus ensure the stability of whole road bed board;
12 step: cleaning track, and at the peripheral injection dust-sealing material of road bed board.
Described jacking system is L-type plate and has adjustment stud; A right-angle side of wherein L-type plate has the connecting hole that arrange corresponding to built-in fitting II, is connected on road bed board by connector II, another right-angle side of L-type plate has the internal thread hole be screwed with adjustment stud; Rotating adjustment stud makes jacking system form support to road bed board.
Described stopping means is channel-section steel structure.
The board-like replaceable combination ballast bed system of one that the present invention proposes and construction technology, adopt technique scheme, achieve the effective location to railway roadbed cushion blocking; Add the ride comfort of adjacent two pieces of road bed board; Achieve the replaceable of the high-end damping property of whole combination ballast bed system and railway roadbed cushion blocking.
Accompanying drawing explanation
Fig. 1 is the working layout drawing of board-like replaceable combination ballast bed system.
Fig. 2 is the structural representation on railway roadbed basis in the present invention.
Fig. 3 is the structural representation of road bed board in the present invention.
Fig. 4 is the another kind of structural representation of road bed board in the present invention.
Fig. 5 is the structural representation of contiguous block in the present invention.
Fig. 6 a is that in the present invention, contiguous block and road bed board are connected and fixed schematic diagram.
Fig. 6 b is the enlarged drawing of I part in Fig. 6 a.
Fig. 7,8,9,10,11 is the structural representation of railway roadbed cushion blocking location in the present invention.
Figure 12 is road bed board stopping means schematic diagram in the present invention.
Figure 13 is the structural representation that in the present invention, jacking system is arranged on road bed board.
Figure 14 is the enlarged drawing of I part in Figure 13.
Figure 15 is railway roadbed cushion blocking paving mode schematic diagram in the present invention.
Figure 16 is road bed board sealing schematic diagram in the present invention.
In figure: 1, rail, 2, damping fastener, 3, elastomeric material, 4, road bed board, 5, railway roadbed cushion blocking, 6, CA mortar injection layer, 7, gutter, 8, railway roadbed basis, 9, location gear platform, 10, boss, 11, circular apertures, 12, U-shaped hole, 13, contiguous block, 14, stopper slot, 15, built-in fitting II, 16, built-in fitting I, 17, cement convex, 18, angle steel, 19, angle steel anchor system, 20, cement rib, 21, steel plate, 22, steel plate anchor system, 23, separation layer, 24, standard, 25, locating piece, 26, short slot, 27, dust-sealing material, 28, L-type plate, 29, stopping means.
Detailed description of the invention
With specific embodiment, the present invention is illustrated by reference to the accompanying drawings:
As shown in Figure 1, a kind of board-like replaceable combination ballast bed system, described ballast bed system includes railway roadbed basis 8, railway roadbed cushion blocking 5 and road bed board 4; Described road bed board 4 is polylith, and road bed board 4 continuous laying described in polylith is in railway roadbed basis 8; The centre on described railway roadbed basis 8 has gutter 7; There is centered by described road bed board 4 rectangular configuration of rectangular enclosure; Described railway roadbed cushion blocking 5 is arranged between road bed board 4 and railway roadbed basis 8; Composition graphs 3, Fig. 4, have at the two ends of road bed board 4 length direction the short slot 26 placing contiguous block 13; Be not subjected to displacement to ensure to install between rear two pieces of road bed board, thus ensure the stability of whole road bed board, the road bed board described in adjacent two pieces is connected as a single entity by contiguous block 13; Polylith road bed board is longitudinally connected to form integral rail plate; In the corner of road bed board 4, all there is stopper slot 14, and described stopper slot 14 is short slot structure; Vertical setting or employing arc transition between two limits that short slot is adjacent; Composition graphs 2, described railway roadbed basis 8 has and keeps off platform 9 for the location corresponding with the stopper slot that road bed board has, and described location gear platform 9 is two rows, and often row is for multiple; Each positioning platform 9 is corresponding with two stopper slots 14 on adjacent two pieces of road bed board and coordinate, and the gap had between described positioning platform and corresponding two stopper slots, in conjunction with Figure 16, filling elastic material 3 in above-mentioned gap, during in order to cushion train operation road bed board stopper slot to location gear platform laterally, longitudinal surge; Described elastic spacing material 3 is CA cement asphalt mortar or polyurethane or epoxy resin; Described location gear platform 9, stopper slot 14 and location gear platform and the elastomeric material 3 between stopper slot jointly realize road bed board relative to railway roadbed basis location be separated; Described railway roadbed cushion blocking 5 is two pieces that corresponding every block road bed board is arranged, and the railway roadbed cushion blocking 5 described in two pieces is symmetricly set on the both sides of road bed board central rectangular cavity; Described railway roadbed cushion blocking 5 be corresponding with road bed board shape and two ends with the structure of short slot; The CA mortar injection layer 6 in order to carry out leveling to road bed board is provided with between described railway roadbed basis 8 and railway roadbed cushion blocking 5; Described CA mortar injection layer 6 is formed by pouring into CA mortar in CA mortar injection bag; The described CA mortar injection bag of CA mortar injection layer 6 is two that corresponding every block road bed board is arranged, CA mortar injection bag described in two is symmetricly set on the both sides of road bed board central rectangular cavity, and the side of CA mortar injection bag described in two is stretched in the rectangular enclosure at road bed board center; Described CA mortar injection bag is the structures of two ends with short slot; Between described CA mortar injection layer 6 and railway roadbed cushion blocking 5, arrange separation layer 23, described separation layer 23 is steel plate or plastic plate; Described railway roadbed cushion blocking is made to be removable separate type relative to CA mortar injection layer; Described separation layer 23 is two that corresponding every block road bed board is arranged, and the separation layer described in two is symmetricly set on the both sides of road bed board central rectangular cavity; Described separation layer is the structures of two ends with short slot; Described road bed board 4 has the built-in fitting II 15 installing road bed board jacking system, in order to coordinate the installation of road bed board, and be convenient to the later stage replacing of railway roadbed cushion blocking, described built-in fitting II 15 is many groups, and described built-in fitting II 15 is positioned at the inwall of described road bed board central rectangular cavity; Described built-in fitting II 15 is sleeve pipe or connecting bolt, and described sleeve pipe has internal thread or has expansion bolt; Described ballast bed system is provided with the positioner that described railway roadbed cushion blocking is located relative to CA mortar injection layer, and described positioner has rib; Described road bed board 4 is provided with damping fastener 2, realizes the damping property of whole combination ballast bed system.
Composition graphs 5, Fig. 6 a, Fig. 6 b, the wall that two of road bed board length direction two ends short slot are relative has the built-in fitting I 16 installing contiguous block; On described contiguous block, corresponding two pieces of road bed board arrange and have the connecting hole corresponding with built-in fitting I 16, and corresponding built-in fitting I 16 is provided with connector I; In order to be mated, the spacing locating piece of vertical direction 25 is carried out to road bed board in the arranged outside of contiguous block 13; Described locating piece 25 has locating piece connecting hole, and described locating piece connecting hole is corresponding with the connecting hole on contiguous block; Connecting hole on the junction plate corresponding with described locating piece connecting hole is U-shaped hole, and above-mentioned U-shaped hole is positioned at one end of junction plate, and the length travel being convenient to track plates regulates; The connecting hole being positioned at the junction plate other end is circular apertures; Described contiguous block 13 has many toothrows arranged in parallel up and down, described many toothrows that contiguous block 13 has are positioned on the bonding surface with locating piece; Described locating piece 25 have many toothrows arranged in parallel up and down, many toothrows that locating piece has are meshed with the tooth on contiguous block, described contiguous block 13 to be coordinated with built-in fitting on road bed board I by connector I and is connected as a single entity by adjacent two road bed board, road bed board described in formation is spacing in the vertical direction, and can carry out the structure of lengthwise position compensation; Described built-in fitting I 16 is sleeve pipe or connecting bolt, and described sleeve pipe has internal thread or has expansion bolt; Described connector I is connecting bolt or nut; In this embodiment, described built-in fitting I 16 is the sleeve pipe of internal thread, and described connector I is connecting bolt.
In conjunction with Figure 13, Figure 14, described jacking system is L-type plate and adjustment stud; A right-angle side of wherein L-type plate 28 has the connecting hole that arrange corresponding to built-in fitting II 15, is connected on road bed board by connector II, another right-angle side of L-type plate 28 has the internal thread hole be screwed with adjustment stud; Rotating adjustment stud makes jacking system form support to road bed board; When described built-in fitting II 15 is the sleeve pipe of internal thread, described connector II is connecting bolt; When described built-in fitting II 15 is for having sleeve pipe or the connecting bolt of expansion bolt, described connector II is nut.
Composition graphs 7, the boss 10 that the two ends that the two ends of described CA mortar injection layer have boss 10, the CA mortar injection layer protruded upward have forms the rib of described positioner.
Composition graphs 8, there is setting at the two ends of described CA mortar injection layer in order to the cement convex 17 as described positioner rib, described cement convex 17 is cast for one with CA mortar injection layer 6, and the height of described cement convex 17 exceeds CA mortar injection layer 6 upper surface 5mm ~ 30mm.
Composition graphs 9, the two ends of CA mortar injection layer arrange angle steel 18, a right-angle side of angle steel 18 passes through angle steel anchor system 19(as screw) be fixed on railway roadbed basis 8, another right-angle side of angle steel 18 is positioned at the periphery of CA mortar injection layer 6 as the rib of described positioner, and highly exceeds CA mortar injection layer 6 upper surface 5mm ~ 30mm.
In conjunction with Figure 10, the soffit of described road bed board is arranged in order to the baffle plate 20 as described positioner rib, and the soffit of baffle plate 20 exceeds road bed board 4 lower surface 22 mm ~ 30mm; Described baffle plate 20 is and the integrated structure of described road bed board 4.
In conjunction with Figure 11, be fixed with in order to the steel plate 21 as described positioner rib in the both sides of described road bed board 4, described steel plate 21 passes through steel plate anchor system 22(as screw) be fixed on road bed board 4; Described steel plate 21 exceeds road bed board soffit 22 mm ~ 30mm.
As shown in figure 16, the periphery of described road bed board 4 is filled with dust-sealing material 27, and described dust-sealing material 27 is CA cement asphalt mortar or polyurethane or epoxy resin;
Figure 15 gives the paving mode of example railway roadbed cushion blocking of the present invention, for railway roadbed cushion blocking 5 is extracted out easily, every block road bed board adopts 2 groups 3 pieces combinations 4 times, that is: the railway roadbed cushion blocking 5 of every block road bed board 4 bottom is for being arranged on two groups of road bed board central rectangular cavity both sides, often organize railway roadbed cushion blocking 5 to be formed by three pieces of railway roadbed cushion blockings docking, and the two ends often organizing railway roadbed cushion blocking 5 have short slot.
A construction for board-like changeable type combined system, is characterized in that: described combined system its concrete steps of constructing are as follows:
The first step: railway roadbed infrastructure and arrangement: drainage problem is considered in the construction on railway roadbed basis 8, is arranged on the centre on railway roadbed basis by gutter 7; After the complete and maintenance of railway roadbed infrastructure is complete, railway roadbed basis upper surface is cleared up, in case surface of base foreign material pierce through infusion bag in perfusion mortar process, cause mortar seepage, pollute road bed board and railway roadbed cushion blocking;
Second step: standard 24 is arranged: arrange standard respectively in the both sides of road bed board, in order to accurately to locate the position of road bed board;
3rd step: lay CA mortar injection bag on railway roadbed basis 8; Described CA mortar injection bag is two that each block road bed board corresponding is arranged, make the CA mortar injection bag described in two corresponding with the position of the road bed board of required laying, the CA mortar injection bag described in two is laid on the both sides of the central rectangular cavity of the required road bed board laid; And with triangle timber wedge, CA mortar injection bag is located;
4th step: lay separation layer 23 on each CA mortar injection bag; Separation layer is steel plate or plastic plate;
5th step: lay railway roadbed cushion blocking 5 on each separation layer 23;
6th step: by basic for road bed board 4 contraposition, utilize track slab adjuster to support road bed board and utilize track slab adjuster and triangular compass to road bed board in the vertical direction, horizontal and vertically carry out accurate adjustment location; In this embodiment, described track slab adjuster adopts the product type produced by China Railway Construction Engineering Group Beijing Machinery Manufacturing Co., Ltd. to be the track slab adjuster of DTC; In conjunction with Figure 12, mounting limit device 29 between adjacent two pieces of road bed board, the two ends of stopping means 29 coordinate with built-in fitting on positioning platform respectively by connecting hole, connector, the two ends of stopping means are separately fixed on the positioning platform on railway roadbed basis 8, and be pressed in the upper surface of adjacent two pieces of road bed board, two pieces of adjacent road bed board are located in vertical direction, and when preventing perfusion mortar, road bed board floats; The width of described stopping means is greater than the spacing between adjacent two pieces of road bed board;
By the built-in fitting II 15 on described road bed board, road bed board jacking system is installed; Described jacking system is L-type plate 28 and adjustment stud; Wherein, be connected on road bed board by L-type plate 28 by the connecting hole on a right-angle side and connector II, the internal thread hole on another right-angle side of L-type plate 28 is combined with adjustment stud; Rotate adjustment stud, after making jacking system form support to road bed board, remove track slab adjuster;
7th step: pour into CA mortar being positioned at the CA mortar injection bag below road bed board;
8th step: pour into elastomeric material 3 between location gear platform 9 and stopper slot 14;
9th step: maintenance CA mortar and elastomeric material 3;
Tenth step: remove stopping means 29 and jacking system; Road bed board is installed and adjusts damping fastener 2 and rail 1; Damping fastener 2 adopts the damping fastener of existing structure;
11 step: install contiguous block 13 between adjacent two pieces of road bed board, adjacent two pieces of road bed board are integrally connected by the built-in fitting I 16 on connector I, road bed board by described contiguous block, realize being rigidly connected between road bed board, ensure that and be not subjected to displacement between road bed board after installing, thus ensure the stability of whole road bed board;
12 step: cleaning track, and at the peripheral injection dust-sealing material 27 of road bed board.
Claims (12)
1. a board-like replaceable combination ballast bed system, described ballast bed system includes railway roadbed basis (8), railway roadbed cushion blocking (5) and road bed board (4); Described road bed board (4) is polylith, and polylith road bed board (4) continuous print is layed in railway roadbed basis (8); There is centered by described road bed board the rectangular configuration of rectangular enclosure; Described railway roadbed cushion blocking (5) is arranged between road bed board (4) and railway roadbed basis (8); It is characterized in that: the short slot (26) place at the two ends of road bed board length direction with contiguous block; Road bed board (4) described in adjacent two pieces is connected as a single entity by contiguous block (13); All there is in the corner of road bed board stopper slot (14), and described stopper slot is short slot structure; Described railway roadbed basis (8) has and keeps off platform (9) for the location corresponding with the stopper slot that road bed board has, and described location gear platform (9) is two rows, and often row is for multiple; Each positioning platform is corresponding with two stopper slots on adjacent two pieces of road bed board and coordinate, and between described positioning platform and corresponding two stopper slots, there is gap, filling elastic material (3) in above-mentioned gap, during in order to cushion train operation road bed board stopper slot to location gear platform laterally, longitudinal surge; Described location gear platform (9), stopper slot (14) and the elastomeric material (3) be positioned between location gear platform (9) and stopper slot realize the location of road bed board relative to railway roadbed basis jointly; Described railway roadbed cushion blocking (5) is two pieces that corresponding every block road bed board is arranged, and the railway roadbed cushion blocking (5) described in two pieces is symmetricly set on the both sides of road bed board central rectangular cavity; Described railway roadbed cushion blocking (5) be corresponding with road bed board shape and two ends with the structure of short slot; The CA mortar injection layer (6) in order to carry out leveling to road bed board is provided with between described railway roadbed basis (8) and railway roadbed cushion blocking (5); Described CA mortar injection layer (6) is formed by pouring into CA mortar in CA mortar injection bag; The described CA mortar injection bag of CA mortar injection layer (6) is two that corresponding every block road bed board is arranged, CA mortar injection bag described in two is symmetricly set on the both sides of road bed board central rectangular cavity, and the side of CA mortar injection bag described in two is stretched in the rectangular enclosure at road bed board center; Described CA mortar injection bag is the structures of two ends with short slot; Separation layer (23) is set between described CA mortar injection layer (6) and railway roadbed cushion blocking (5), makes described railway roadbed cushion blocking (5) be removable separate type relative to CA mortar injection layer (6); Described separation layer (23) is two that corresponding every block road bed board is arranged, and the separation layer (23) described in two is symmetricly set on the both sides of road bed board central rectangular cavity; Described separation layer (23) is for two ends are with the structure of short slot; Described road bed board (4) has the built-in fitting II (15) installing road bed board jacking system, in order to coordinate the installation of road bed board, and be convenient to the later stage replacing of railway roadbed cushion blocking, described built-in fitting II (15) is many groups, and described built-in fitting II (15) is positioned at the inwall of described road bed board central rectangular cavity; Described ballast bed system is provided with the positioner that described railway roadbed cushion blocking is located relative to CA mortar injection layer (6), and described positioner has rib.
2. board-like replaceable combination ballast bed system according to claim 1, is characterized in that: the built-in fitting I (16) two of short slot (26) relative walls install road bed board with contiguous block; The corresponding two pieces of road bed board of each described contiguous block (13) arrange and have the connecting hole corresponding with built-in fitting I (16), and corresponding built-in fitting I is provided with connector I; In order to be mated, the spacing locating piece of vertical direction (25) is carried out to road bed board in the arranged outside of contiguous block (13); Described locating piece has locating piece connecting hole, described locating piece connecting hole is corresponding with the connecting hole on contiguous block (13); Connecting hole on the junction plate corresponding with described locating piece connecting hole is U-shaped hole, and described U-shaped hole is positioned at one end of junction plate, and the length travel being convenient to track plates regulates; The connecting hole being positioned at the junction plate other end is circular apertures; Described contiguous block has many toothrows arranged in parallel up and down, described many toothrows that contiguous block (13) has are positioned on the bonding surface with locating piece; Described locating piece have many toothrows arranged in parallel up and down, many toothrows that locating piece has are meshed with the tooth on contiguous block (13), described contiguous block (13) to be coordinated with built-in fitting on road bed board I by connector I and is connected as a single entity by adjacent two road bed board, road bed board described in formation is spacing in the vertical direction, and can carry out the structure of lengthwise position compensation.
3. board-like replaceable combination ballast bed system according to claim 2, is characterized in that: described built-in fitting I (16) is sleeve pipe or connecting bolt, and described sleeve pipe has internal thread or has expansion bolt; Described connector I is connecting bolt or nut.
4. board-like replaceable combination ballast bed system according to claim 1, is characterized in that: described built-in fitting II (15) is sleeve pipe or connecting bolt, and described sleeve pipe has internal thread or has expansion bolt.
5. board-like replaceable combination ballast bed system according to claim 1, it is characterized in that: the two ends of described CA mortar injection layer (6) have the boss (10) protruded upward, the boss (10) that the two ends of CA mortar injection layer have forms the rib of described positioner.
6. board-like replaceable combination ballast bed system according to claim 1, it is characterized in that: the two ends of described CA mortar injection layer (6) are arranged in order to the cement convex (17) as described positioner rib, described cement convex (17) and CA mortar injection layer (6) are cast for one, and the height of described cement convex (17) exceeds CA mortar injection layer (6) upper surface 5mm ~ 30mm.
7. board-like replaceable combination ballast bed system according to claim 1, it is characterized in that: the two ends of described CA mortar injection layer (6) are provided with angle steel (18), a right-angle side of angle steel (18) is fixed on railway roadbed basis (8), another right-angle side of angle steel (18) is positioned at the periphery of CA mortar injection layer as the rib of described positioner, and highly exceeds CA mortar injection layer upper surface 5mm ~ 30mm.
8. board-like replaceable combination ballast bed system according to claim 1, it is characterized in that: the soffit at described road bed board (4) two ends has in order to the baffle plate (20) as described positioner rib, the lower surface of described baffle plate (20) exceeds road bed board soffit 22 mm ~ 30mm, and described baffle plate (20) is and described road bed board (4) integrated structure.
9. board-like replaceable combination ballast bed system according to claim 1, is characterized in that: the two ends of described road bed board (4) are fixed with in order to the steel plate as described positioner rib, and described steel plate exceeds road bed board soffit 22 mm ~ 30mm.
10. a construction technology for board-like changeable type combination ballast bed system described in claim 1, is characterized in that: the concrete steps of described combination ballast bed system construction are as follows:
The first step: railway roadbed basis (8) are built and arranged: drainage problem is considered in the construction of railway roadbed basis (8), gutter (7) is arranged on the centre on railway roadbed basis; After the complete and maintenance of railway roadbed infrastructure is complete, railway roadbed basis upper surface is cleared up, in case surface of base foreign material pierce through infusion bag in perfusion mortar process, cause mortar seepage, pollute road bed board and railway roadbed cushion blocking;
Second step: standard (24) is arranged: arrange standard respectively in the both sides of road bed board, in order to accurately to locate the position of road bed board;
3rd step: at railway roadbed basis (8) upper laying CA mortar injection bag; Described CA mortar injection bag is two that each block road bed board corresponding is arranged, make the CA mortar injection bag described in two corresponding with the position of the road bed board of required laying, the CA mortar injection bag described in two is laid on the both sides of the central rectangular cavity of the required road bed board laid; And with triangle timber wedge, CA mortar injection bag is located;
4th step: lay separation layer (23) on each CA mortar injection bag;
5th step: lay railway roadbed cushion blocking (5) on each separation layer;
6th step: by basic for road bed board contraposition, utilize track slab adjuster to support road bed board and utilize track slab adjuster and triangular compass to road bed board in the vertical direction, horizontal and vertically carry out accurate adjustment location; Mounting limit device between adjacent two pieces of road bed board, the two ends of stopping means keep off built-in fitting on platform with location coordinate respectively by connecting hole, connectors, the two ends of stopping means are separately fixed on the location gear platform on railway roadbed basis (8), and be pressed in the upper surface of adjacent two pieces of road bed board, two pieces of adjacent road bed board are located in vertical direction, and when preventing perfusion mortar, road bed board floats; The width of described stopping means is greater than the spacing between adjacent two pieces of road bed board;
By the built-in fitting II (15) on described road bed board (4), road bed board jacking system is installed, road bed board jacking system is supported road bed board; And remove track slab adjuster;
7th step: pour into CA mortar being positioned at the CA mortar injection bag below road bed board;
8th step: pour into elastomeric material (3) between location gear platform (9) and stopper slot (14);
9th step: maintenance CA mortar and elastic spacing material;
Tenth step: remove stopping means (29) and jacking system; Above install at road bed board (4) and adjust damping fastener (2) and rail (1);
11 step: install contiguous block (13) between adjacent two pieces of road bed board (4), adjacent two pieces of road bed board are integrally connected by the built-in fitting I on connector I, road bed board by described contiguous block (13), realize being rigidly connected between road bed board, ensure that and be not subjected to displacement between road bed board after installing, thus ensure the stability of whole road bed board;
12 step: cleaning track, and at the peripheral injection dust-sealing material (27) of road bed board (4).
The construction technology of 11. a kind of board-like changeable type railway roadbed combined systems according to claim 10, is characterized in that: described jacking system is L-type plate (28) and adjustment stud; A right-angle side of wherein L-type plate has the connecting hole that arrange corresponding to built-in fitting II (15), is connected on road bed board (4) by connector II, another right-angle side of L-type plate has the internal thread hole be screwed with adjustment stud; Rotating adjustment stud makes jacking system form support to road bed board.
The construction technology of 12. a kind of board-like changeable type combined systems according to claim 10, is characterized in that: described stopping means is channel-section steel structure.
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| CN201310150786.0A CN103243619B (en) | 2013-04-27 | 2013-04-27 | Slab-type replaceable combined ballast bed system and construction process |
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| CN201310150786.0A CN103243619B (en) | 2013-04-27 | 2013-04-27 | Slab-type replaceable combined ballast bed system and construction process |
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| CN103243619B true CN103243619B (en) | 2015-02-25 |
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| CN103938502B (en) * | 2014-05-05 | 2016-02-03 | 洛阳双瑞橡塑科技有限公司 | A kind of detachable track travel cover plate |
| CN104631231B (en) * | 2015-01-04 | 2017-05-10 | 中铁四局集团有限公司 | Construction method for breaking and removing monolithic track bed in subway operation line tunnel |
| CN106948226B (en) * | 2017-05-09 | 2019-04-12 | 隔而固(青岛)振动控制有限公司 | Elastic cushion vibration-damping ballast easy to maintain |
| CN106948227B (en) * | 2017-05-09 | 2019-10-18 | 隔而固(青岛)振动控制有限公司 | Board-like cushion blocking railway roadbed easy to maintain |
| CN107190584B (en) * | 2017-07-10 | 2023-03-10 | 中铁第四勘察设计院集团有限公司 | Assembled limiting structure for ballastless track and ballastless track with same |
| CN107805981B (en) * | 2017-11-06 | 2023-05-23 | 成都卓控环保科技有限公司 | Connecting device of prefabricated floating slab and construction method thereof |
| CN108360305A (en) * | 2018-04-27 | 2018-08-03 | 江苏振华轨道交通设备有限公司 | A kind of rail traffic vibration damping installation apparatus and installation method |
| CN112030630A (en) * | 2020-09-27 | 2020-12-04 | 武汉比邻科技发展有限公司 | Grouting bag for ballastless track adjusting layer and using method thereof |
| CN114481710A (en) * | 2022-02-22 | 2022-05-13 | 河北中烁轨道科技有限公司 | Composite track plate convenient to disassemble and production process thereof |
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