CN113062149A - Light prefabricated ballast bed and construction method - Google Patents
Light prefabricated ballast bed and construction method Download PDFInfo
- Publication number
- CN113062149A CN113062149A CN202110512910.8A CN202110512910A CN113062149A CN 113062149 A CN113062149 A CN 113062149A CN 202110512910 A CN202110512910 A CN 202110512910A CN 113062149 A CN113062149 A CN 113062149A
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- Prior art keywords
- prefabricated
- layer
- longitudinal
- sleeper
- transverse
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Classifications
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B1/00—Ballastway; Other means for supporting the sleepers or the track; Drainage of the ballastway
- E01B1/002—Ballastless track, e.g. concrete slab trackway, or with asphalt layers
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B29/00—Laying, rebuilding, or taking-up tracks; Tools or machines therefor
- E01B29/06—Transporting, laying, removing or renewing sleepers
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B3/00—Transverse or longitudinal sleepers; Other means resting directly on the ballastway for supporting rails
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B9/00—Fastening rails on sleepers, or the like
- E01B9/02—Fastening rails, tie-plates, or chairs directly on sleepers or foundations; Means therefor
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
- E01F5/00—Draining the sub-base, i.e. subgrade or ground-work, e.g. embankment of roads or of the ballastway of railways or draining-off road surface or ballastway drainage by trenches, culverts, or conduits or other specially adapted means
Abstract
The invention discloses a lightweight prefabricated track bed which comprises two prefabricated longitudinal sleepers, wherein the two prefabricated longitudinal sleepers are longitudinally distributed at intervals, a bearing table is arranged at the top of each prefabricated longitudinal sleeper, steel rails are mounted on the bearing table through fasteners, a first layer of connecting reinforcing mesh is pre-buried at the bottom of each prefabricated longitudinal sleeper, the two first layers of connecting reinforcing meshes are connected through a second layer of connecting reinforcing mesh which is transversely distributed, a plurality of transverse through holes are transversely formed in the prefabricated longitudinal sleepers, a third layer of connecting reinforcing mesh is mounted in the two corresponding transverse through holes, concrete is poured in a gap between the two prefabricated longitudinal sleepers to form a base layer, and the base layer covers the first layer of connecting reinforcing mesh, the second layer of connecting reinforcing mesh and the third layer of connecting reinforcing mesh. The invention has the beneficial effects that: the integral installation of the light prefabricated track bed is realized, and the prefabricated longitudinal sleeper is convenient to install through the large support frame in the installation process.
Description
Technical Field
The invention relates to a longitudinally prefabricated integral ballast bed, in particular to a lightweight prefabricated ballast bed and a construction method.
Background
The ballast bed is used as an important link of an urban rail transit rail structure, bears direct loads from rail transit trains, and uniformly transmits the loads to rail segments below the ballast bed. The construction quality of the ballast bed is important, and the whole ballast bed is all in a cast-in-place form in the prior art, so that the construction quality is difficult to control. The prefabricated track slab adopts the form of factory prefabrication field assembly, can effectual control ballast bed quality, and single prefabricated track slab can not adapt to the great condition of shield deviation because size form is single, the width is fixed, and its degree of freedom of current prefabricated ballast bed is higher moreover, can vertically, transversely, forward freely slide to influence the stability of ballast bed.
The inventor researches and invents a longitudinally prefabricated integral ballast bed through long-term research.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a lightweight prefabricated track bed and a construction method.
The purpose of the invention is realized by the following technical scheme: prefabricated railway bed of light-dutyization, including prefabricated vertical sleeper, prefabricated vertical sleeper is two, and two prefabricated vertical sleepers are vertical symmetric distribution, the top of prefabricated vertical sleeper is equipped with the bearing platform, the rail is installed through the fastener to the bearing platform, the pre-buried first layer of connecting reinforcing bar net in the bottom of prefabricated vertical sleeper, two first layers are connected reinforcing bar net and are connected through the second layer of horizontal distribution and connect the reinforcing bar net, a plurality of horizontal through holes have transversely been seted up on the prefabricated vertical sleeper, install the third layer in the horizontal through hole that two correspond and connect the reinforcing bar net, the gap department between two prefabricated vertical sleepers pours concrete and forms the stratum basale, the stratum basale covers first layer and connects the reinforcing bar net, the reinforcing bar net is connected to the second layer, reinforcing bar net and the.
Optionally, the first layer of connecting reinforcement net includes that a plurality of connect the stirrup and a plurality of first connection indulge the muscle, and a plurality of connect the stirrup interval pre-buried in prefabricated vertical sleeper, and a plurality of connect the stirrup and indulge the muscle through a plurality of longitudinally distributed's first connection and connect.
Optionally, the second layer is connected the reinforcing bar net and is included a plurality of horizontal reinforcing bars and a plurality of second and connect and indulge the muscle, and a plurality of horizontal reinforcing bars span the interval and install on the muscle is indulged in first connection, and a plurality of horizontal reinforcing bars are connected through a plurality of second and are indulged the muscle and connect.
Optionally, the bearing platform is a plurality of, and a plurality of bearing platforms are vertical interval distribution, has seted up the concrete hole of vibrating on the prefabricated vertical sleeper between the adjacent bearing platform.
Optionally, a drainage ditch substrate is further poured on the outer side of the prefabricated longitudinal sleeper, and a drainage ditch is formed by the drainage ditch substrate, the inner wall of the tunnel and a channel between the prefabricated longitudinal sleeper.
Optionally, a barrel sleeve for installing and supporting the large frame is pre-embedded in the prefabricated longitudinal sleeper.
Optionally, the support is greatly put up including transverse connecting rod, transverse connecting rod's both ends all are connected with a connecting piece, the connecting piece passes through locking Assembly to be installed on the sleeper, still be provided with at least one rail end bearing block of control rail slope on the connecting piece, still be provided with on the connecting piece and heighten the connecting block, rail end bearing block is located between heightening connecting block and the transverse connecting rod, heighten the threaded mounting on the connecting block and heighten the screw rod, and the bottom of heightening the screw rod passes the connecting piece.
Optionally, the heightening connecting block comprises a base, the base is detachably connected with the connecting piece, a sleeve is arranged on the base, a threaded hole matched with the heightening screw in a threaded manner is formed in the sleeve, and a through hole through which the heightening screw penetrates is formed in the bottom of the connecting piece.
Optionally, a support member is installed at one end, close to the transverse connecting rod, of the connecting member, the transverse connecting rod is fixedly installed on the support member, the connecting member is of a rectangular structure, locking assemblies are installed on four corners of the connecting member and comprise locking bolts and sliding bed blocks, waist-shaped holes are formed in the four corners of the connecting member, and the locking bolts sequentially penetrate through the sliding bed blocks and the waist-shaped holes and are connected with the sleeper.
The construction method of the lightweight prefabricated track bed comprises the following steps:
s1: assembling the prefabricated longitudinal sleepers, namely flatly placing the plurality of prefabricated longitudinal sleepers, mounting steel rails on the longitudinal sleepers through fasteners, preliminarily adjusting the distance between the left steel rail and the right steel rail, and mounting a large support frame on the prefabricated longitudinal sleepers to form a longitudinal sleeper group; secondly, transverse steel bars are placed on the first connecting longitudinal bars, then second connecting longitudinal bars are placed on the transverse steel bars, the transverse steel bars and the second connecting longitudinal bars are bound to form a second layer of connecting steel bar nets, then the third layer of connecting steel bar nets transversely penetrate through the corresponding transverse through holes, and therefore the longitudinal sleepers are connected in series through the steel rails, the large support frame, the first layer of connecting steel bar nets, the second layer of connecting steel bar nets and the third layer of connecting steel bar nets to form a track panel;
s2: mounting the prefabricated longitudinal sleepers, placing the track panel in a tunnel, adjusting the distance between the two prefabricated longitudinal sleepers through a track gauge adjusting auxiliary tool, and adjusting the horizontal height of the prefabricated longitudinal sleepers through a large support frame to ensure that the distance between the two prefabricated longitudinal sleepers is on the same plane;
s3: pouring concrete, namely installing a template on the outer side of the prefabricated longitudinal sleeper, and then pouring concrete to form a base layer;
s4: and manufacturing a drainage ditch, removing the template and the large support frame, and pouring concrete on the outer side of the prefabricated longitudinal sleeper to form a drainage ditch substrate.
The invention has the following advantages: according to the light prefabricated track bed, the prefabricated longitudinal sleeper is assembled through the first layer connecting reinforcing mesh, the second layer connecting reinforcing mesh, the third layer connecting reinforcing mesh and the large support frame, the stability of a track panel is guaranteed, integral installation is achieved during installation, the track gauge and the levelness of the prefabricated longitudinal sleeper can be guaranteed, installation accuracy is high, and the prefabricated longitudinal sleeper is convenient to install through the large support frame during installation.
Drawings
FIG. 1 is a schematic structural diagram of the present invention
FIG. 2 is a schematic view of the track panel
FIG. 3 is a schematic view of the track panel
Fig. 4 is a schematic view showing the installation of the second layer connecting reinforcing mesh and the third layer connecting reinforcing mesh
Fig. 5 is a schematic view of the installation of the first layer of connecting reinforcing mat
FIG. 6 is a schematic view of the installation of the support frame
FIG. 7 is a schematic structural view of a support frame;
FIG. 8 is a schematic cross-sectional view of A-A of FIG. 7;
FIG. 9 is a schematic structural view of a connector;
FIG. 10 is a first schematic structural view of an elevation-adjusting connecting block;
FIG. 11 is a second schematic structural view of the height-adjusting connecting block;
FIG. 12 is a schematic view of the structure of the support member;
FIG. 13 is a schematic view of the structure of the height adjusting screw;
in the figure, 101-tunnel, 102-base layer, 103-drainage ditch, 104-prefabricated longitudinal sleeper, 106-bearing platform, 107-steel rail, 108-concrete vibrating hole, 109-sleeve, 110-drainage ditch base, 111-first layer connecting reinforcing mesh, 112-second layer connecting reinforcing mesh, 113-third layer connecting reinforcing mesh, 114-transverse through hole, 115-connecting hoop, 116-first connecting longitudinal rib, 117-supporting large frame, 1-transverse connecting rod, 2-connecting piece, 3-supporting piece, 4-rail bottom bearing block, 5-heightening connecting block, 6-heightening screw rod, 7-slider block, 21-kidney slot, 22-through hole, 51-sleeve, 52-ribbed plate, 53-threaded hole, 54-base, 61-perforation.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings of the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
In addition, the embodiments of the present invention and the features of the embodiments may be combined with each other without conflict.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, or orientations or positional relationships that the products of the present invention conventionally lay out when in use, or orientations or positional relationships that are conventionally understood by those skilled in the art, which are merely for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The first embodiment is as follows:
as shown in fig. 1, 2 and 3, the light prefabricated track bed comprises two prefabricated longitudinal sleepers 104, the two prefabricated longitudinal sleepers 104 are longitudinally and symmetrically distributed, a bearing table 106 is arranged at the top of each prefabricated longitudinal sleeper 104, a steel rail 107 is installed on each bearing table 106 through a fastener, each bearing table 106 is provided with an inclined surface, a connecting hole is formed in each bearing table 106, and each steel rail 107 is installed on each bearing table 106 through a fastener.
In this embodiment, as shown in fig. 4 and 5, a first connecting reinforcing mesh 111 is embedded in the bottom of the prefabricated longitudinal sleeper 104, two first connecting reinforcing meshes 111 are connected by a second connecting reinforcing mesh 112 distributed transversely, a plurality of transverse through holes 114 are formed in the prefabricated longitudinal sleeper 104, a third connecting reinforcing mesh 113 is installed in each transverse through hole 114, concrete is poured in the gap between the two prefabricated longitudinal sleepers 104 to form the base layer 102, the base layer 102 covers the first connecting reinforcing mesh 111, the second connecting reinforcing mesh 112 and the third connecting reinforcing mesh 113, further, the first connecting reinforcing mesh 111 includes a plurality of connecting stirrups 115 and a plurality of first connecting longitudinal reinforcements 116, the plurality of connecting stirrups 115 are embedded in the prefabricated longitudinal sleeper 104 at intervals, and the plurality of connecting stirrups 115 are connected by the plurality of first connecting longitudinal reinforcements 116 distributed longitudinally, the first layer of connecting mesh reinforcement 111 enhances the anchoring capability of the prefabricated longitudinal tie 104 to the base layer 102 and is the support framework for the second layer of connecting mesh reinforcement 112.
In this embodiment, the second layer connecting reinforcing mesh 112 includes a plurality of transverse reinforcing bars and a plurality of second connecting longitudinal bars, the plurality of transverse reinforcing bars are installed on the first connecting longitudinal bar 116 across the interval, and the plurality of transverse reinforcing bars are connected through the plurality of second connecting longitudinal bars, during construction, the plurality of prefabricated longitudinal sleepers 104 on the left and right sides are firstly laid flat, then the transverse reinforcing bars are placed on the first layer connecting longitudinal bar 116, then the second connecting longitudinal bars are placed on the transverse reinforcing bars, and then the transverse reinforcing bars and the second connecting longitudinal bars are bound together.
In this implementation, pressure-bearing platform 106 is a plurality of, and a plurality of pressure-bearing platforms 106 are vertical interval distribution, has seted up concrete hole 108 that vibrates on the prefabricated vertical sleeper 104 between the adjacent pressure-bearing platform 106, and is preferred, the cross-section in concrete hole 108 that vibrates is trapezium structure, when the stratum basale 102 is pour, can place the vibrting spear and vibrate in concrete hole 108 that vibrates to guarantee the pouring quality of concrete, also can further guarantee the steadiness of prefabricated vertical sleeper 104 and stratum basale 102 simultaneously.
In this embodiment, a drainage ditch substrate 110 is further poured on the outer side of the prefabricated longitudinal sleepers 104, the drainage ditch 103 is formed by the drainage ditch substrate 110, the inner wall of the tunnel 101 and the channels between the prefabricated longitudinal sleepers 104, and the water in the tunnel 101 can be drained away along the drainage ditch 103, preferably, the drainage ditch 103 has a certain slope, and the slope of the drainage ditch is 2 degrees, so that the water can be drained away conveniently.
In this embodiment, as shown in fig. 6, the prefabricated longitudinal sleepers 104 are embedded with sleeves 109 for mounting the support frames 117, and the prefabricated longitudinal sleepers 104, the rails 107, the support frames 117, the first layer of connecting reinforcing meshes 111, the second layer of connecting reinforcing meshes 112 and the third layer of connecting reinforcing meshes 113 form a track row.
In this embodiment, as shown in fig. 7 and 8, the large support frame 117 includes a transverse connecting rod 1, two ends of the transverse connecting rod 1 are connected with a connecting member 2, the connecting member 2 is mounted on the sleeper through a locking assembly, the connecting member 2 is further provided with at least one rail bottom bearing block 4 for controlling the gradient of the steel rail, the connecting member 2 is further provided with an elevation connecting block 5, the rail bottom bearing block 4 is located between the elevation connecting block 5 and the transverse connecting rod 1, an elevation screw 6 is threadedly mounted on the elevation connecting block 5, and the bottom of the elevation screw 6 passes through the connecting member 2, when in use, the large support frame 117 is passed through the lower part of the steel rail to enable the steel rail to be located on the rail bottom bearing block 4, further, the two rail bottom bearing blocks 4 are provided, the two rail bottom bearing blocks 4 are arranged side by side in the longitudinal direction at intervals, the rail bottom bearing block 4 is provided with an inclined plane inclined towards the transverse, consequently can control the rail bottom slope through rail end bearing block 4, then with the interval between two rail of gauge adjustment auxiliary fixtures adjustment, and gauge adjustment auxiliary fixtures belongs to prior art, therefore no longer describe, when adjusting interval between two rail, the rail can slide along rail end bearing block 4, thereby make the level of rail change, after the interval adjustment between the rail is good, then, rotate heightening screw 6, heightening screw 6's bottom supports on the stereoplasm object, but when heightening screw 6 rotated, heightening screw 6 did not take place axial displacement, heightening connecting block 5 that corresponds with heightening screw 6 this moment then can axial displacement, thereby drive connecting piece 2 and reciprocate, thereby realized the altitude mixture control of the rail on rail end bearing block 4, guarantee the installation accuracy of rail.
In this embodiment, as shown in fig. 9 and 12, a support member 3 is installed at one end of the connecting member 2 close to the transverse connecting rod 1, the transverse connecting rod 1 is fixedly installed on the support member 3, preferably, the transverse connecting rod 1 is welded on the support member 3, a plurality of connecting holes are opened on the support member 3, and the support member 3 is connected with the connecting member 2 through bolts installed in the connecting holes, preferably, the support member 3 is cross-shaped, one end of the connecting member close to the transverse connecting rod 1 is welded with the transverse connecting rod 1, the end portions of the other three directions are connected with the connecting member 2 through bolts, and holes connected with the bolts are opened on the connecting member 2.
In this embodiment, as shown in fig. 9, connecting piece 2 is the rectangle structure, all install locking Assembly on four corners of connecting piece 2, locking Assembly includes locking bolt and sliding bed piece 7, waist shape hole 21 has all been seted up on four corners of connecting piece 2, locking bolt passes sliding bed piece 7 in proper order, waist shape hole 21 is connected with the sleeper, be provided with waist shape hole 21, consequently sliding bed piece 7 and locking bolt all can remove relative connecting piece 2, consequently sliding bed piece 7 can transversely slide under the drive of sleeper, thereby can be used for adjusting the gauge.
In this embodiment, as shown in fig. 10 and 11, the height-adjusting connecting block 5 includes a base 54, the base 54 is detachably connected to the connecting member 2, the base 54 is provided with a sleeve 51, the sleeve 51 is provided with a threaded hole 53 in threaded fit with the height-adjusting screw 6, and the bottom of the connecting member 2 is provided with a through hole 22 through which the height-adjusting screw 6 passes, in order to ensure the stability of connection of the sleeve 51, the sidewall of the sleeve 51 is connected with a rib plate 52, the rib plate 52 is fixedly mounted on the base 54, further, the base 54 is provided with a plurality of connecting holes, and the base 54 is connected to the connecting member 2 through bolts installed in the connecting holes, preferably, the base 54 is provided with three connecting holes, and the three connecting holes are.
In this embodiment, as shown in fig. 13, the height of the steel rail can be adjusted by rotating the height-adjusting screw 6, in order to facilitate the rotation of the height-adjusting screw 6, a through hole 61 is radially formed at the top of the height-adjusting screw 6, when the rotation of the height-adjusting screw 6 is difficult, a core rod can be inserted into the through hole 61, and then the height-adjusting screw 6 is rotated by rotating the core rod.
Example two:
the construction method of the lightweight prefabricated track bed comprises the following steps:
s1: assembling prefabricated longitudinal sleepers, namely flatly placing a plurality of prefabricated longitudinal sleepers 104, mounting steel rails 107 on the longitudinal sleepers 104 through fasteners, preliminarily adjusting the distance between the left steel rail 107 and the right steel rail 107, and then mounting a large support frame 117 on the prefabricated longitudinal sleepers 104 to form a longitudinal sleeper group; secondly, transverse reinforcing steel bars are placed on the first connecting longitudinal bars 116, then second connecting longitudinal bars are placed on the transverse reinforcing steel bars, the transverse reinforcing steel bars and the second connecting longitudinal bars are bound to form second layer connecting reinforcing meshes 112, then third layer connecting reinforcing meshes 113 are transversely crossed in corresponding transverse through holes 114, and then the steel rails 107 and the large support frames 117 are installed on the prefabricated longitudinal sleepers 104, so that the longitudinal sleepers 104 are connected in series to form a track row by the steel rails 107, the large support frames 117, the first layer connecting reinforcing meshes 111, the second layer connecting reinforcing meshes 112 and the third layer connecting reinforcing meshes 113;
s2: the method comprises the steps of installing prefabricated longitudinal sleepers 104, placing track panels in a tunnel 101, adjusting the distance between the two prefabricated longitudinal sleepers 104 through a track gauge adjusting auxiliary tool, and adjusting the horizontal height of the prefabricated longitudinal sleepers 104 through a large support frame 117 to ensure that the distance between the two prefabricated longitudinal sleepers 104 is in the same plane;
s3: pouring concrete, namely installing a template on the outer side of the prefabricated longitudinal sleeper 104, and then pouring concrete to form a base layer;
s4: and manufacturing a drainage ditch, removing the template and the large support frame, and pouring concrete on the outer side of the prefabricated longitudinal sleeper 104 to form a drainage ditch substrate.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.
Claims (10)
1. Light prefabricated ballast bed, its characterized in that: including prefabricated vertical sleeper, prefabricated vertical sleeper is two, and two prefabricated vertical sleepers are vertical symmetric distribution, the top of prefabricated vertical sleeper is equipped with the bearing platform, the rail is installed through the fastener to the bearing bench, the pre-buried first layer connection reinforcing bar net that has of bottom of prefabricated vertical sleeper, two the reinforcing bar net is connected through the second layer connection reinforcing bar net of transverse distribution to the first layer, transversely seted up a plurality of horizontal through holes on the prefabricated vertical sleeper, two correspond install the third layer in the horizontal through hole and connect reinforcing bar net, two concrete is pour and form the stratum basale in the gap department between the prefabricated vertical sleeper, the stratum basale covers the reinforcing bar net is connected to the first layer the second reinforcing bar layer connection net with reinforcing bar net is connected to the third layer.
2. The lightweight prefabricated track bed according to claim 1, wherein: the first layer of connecting reinforcement mesh comprises a plurality of connecting stirrups and a plurality of first connecting longitudinal bars, the connecting stirrups are embedded at intervals in the prefabricated longitudinal sleepers, and the connecting stirrups are connected with the first connecting longitudinal bars in a plurality of longitudinally distributed modes.
3. The lightweight prefabricated track bed according to claim 2, wherein: the second layer is connected the reinforcing bar net and is included a plurality of horizontal reinforcing bars and a plurality of second and connect and indulge the muscle, and a plurality of horizontal reinforcing bars span the interval and install on the muscle is indulged in first connection, and a plurality of horizontal reinforcing bars are connected through a plurality of second and are indulged the muscle.
4. A lightweight prefabricated ballast bed according to claim 3, wherein: the bearing tables are a plurality of, and a plurality of bearing tables are vertical interval distribution, and are adjacent concrete vibration hole has been seted up on the prefabricated vertical sleeper between the bearing table.
5. The lightweight prefabricated track bed according to claim 4, wherein: the outside of prefabricated vertical sleeper has still pour the escape canal basement, tunnel inner wall and the passageway between the prefabricated vertical sleeper forms the escape canal.
6. The lightweight prefabricated track bed according to claim 5, wherein: and a barrel sleeve for mounting and supporting the large frame is pre-embedded on the prefabricated longitudinal sleeper.
7. The lightweight prefabricated track bed according to claim 6, wherein: the support is big to be put up including transverse connecting rod, transverse connecting rod's both ends all are connected with a connecting piece, the connecting piece passes through locking Assembly to be installed on the sleeper, still be provided with the rail end bearing block of at least one control rail slope on the connecting piece, still be provided with on the connecting piece and increase the connecting block, rail end bearing block is located increase the connecting block with between the transverse connecting rod, it installs the screw rod of increaseing to increase the screw thread on the connecting block, just the bottom of increaseing the screw rod is passed the connecting piece.
8. The lightweight prefabricated track bed according to claim 7, wherein: the heightening connecting block comprises a base, the base is detachably connected with the connecting piece, a sleeve is arranged on the base, a threaded hole matched with the heightening screw in a threaded mode is formed in the sleeve, and a through hole through which the heightening screw penetrates is formed in the bottom of the connecting piece.
9. The lightweight prefabricated track bed according to claim 8, wherein: be close to on the connecting piece support piece is installed to the one end of transverse connecting rod, transverse connecting rod fixed mounting be in support piece is last, the connecting piece is the rectangle structure all install on four corners of connecting piece locking Assembly, locking Assembly includes locking bolt and sliding bed piece, waist shape hole has all been seted up on four corners of connecting piece, locking bolt pass sliding bed piece, waist shape hole in proper order and with the sleeper is connected.
10. The construction method of the lightweight prefabricated ballast bed is characterized by comprising the following steps of: the method comprises the following steps:
s1: assembling prefabricated longitudinal sleepers, namely flatly placing a plurality of prefabricated longitudinal sleepers, mounting steel rails on the longitudinal sleepers through fasteners, preliminarily adjusting the distance between the left steel rail and the right steel rail, and mounting a large support frame on the prefabricated longitudinal sleepers to form a longitudinal sleeper group; secondly, transverse steel bars are placed on the first connecting longitudinal bars, then second connecting longitudinal bars are placed on the transverse steel bars, the transverse steel bars and the second connecting longitudinal bars are bound to form a second layer of connecting reinforcing mesh, and then a third layer of connecting reinforcing mesh traverses through corresponding transverse through holes, so that longitudinal sleepers are connected in series by using the steel rails, the large support frame, the first layer of connecting reinforcing mesh, the second layer of connecting reinforcing mesh and the third layer of connecting reinforcing mesh to form a track panel;
s2: mounting the prefabricated longitudinal sleepers, placing the track panel in a tunnel, adjusting the distance between the two prefabricated longitudinal sleepers through a track gauge adjusting auxiliary tool, and adjusting the horizontal height of the prefabricated longitudinal sleepers through a large support frame to ensure that the distance between the two prefabricated longitudinal sleepers is on the same plane;
s3: pouring concrete, namely installing a template on the outer side of the prefabricated longitudinal sleeper, and then pouring concrete to form a base layer;
s4: and manufacturing a drainage ditch, removing the template and the large support frame, and pouring concrete on the outer side of the prefabricated longitudinal sleeper to form a drainage ditch substrate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110512910.8A CN113062149A (en) | 2021-05-11 | 2021-05-11 | Light prefabricated ballast bed and construction method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110512910.8A CN113062149A (en) | 2021-05-11 | 2021-05-11 | Light prefabricated ballast bed and construction method |
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| CN113062149A true CN113062149A (en) | 2021-07-02 |
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| CN202110512910.8A Pending CN113062149A (en) | 2021-05-11 | 2021-05-11 | Light prefabricated ballast bed and construction method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117144734A (en) * | 2023-08-25 | 2023-12-01 | 成都工投装备有限公司 | Semi-automatic track assembly device |
-
2021
- 2021-05-11 CN CN202110512910.8A patent/CN113062149A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117144734A (en) * | 2023-08-25 | 2023-12-01 | 成都工投装备有限公司 | Semi-automatic track assembly device |
| CN117144734B (en) * | 2023-08-25 | 2024-03-19 | 成都工投装备有限公司 | Semi-automatic track assembly device |
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