CN212716656U - Can improve waterproof novel inverted arch prefabricated section structure of railway tunnel internode - Google Patents

Can improve waterproof novel inverted arch prefabricated section structure of railway tunnel internode Download PDF

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CN212716656U
CN212716656U CN202021389350.9U CN202021389350U CN212716656U CN 212716656 U CN212716656 U CN 212716656U CN 202021389350 U CN202021389350 U CN 202021389350U CN 212716656 U CN212716656 U CN 212716656U
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inverted arch
bolt
railway tunnel
water stop
improving
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何京健
于建伟
刘培玉
田光
程亮亮
徐静
齐保栋
王丽华
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Sinohydro Engineering Bureau 4 Co Ltd
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Sinohydro Engineering Bureau 4 Co Ltd
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Abstract

The utility model provides a can improve waterproof nature's between railway tunnel festival novel inverted arch prefabricated block structure belongs to the relevant technical field of railway tunnel construction for solve current railway tunnel inverted arch piece and lay the poor problem of back internode sealed water-proof effects. Including invert piece main part, invert piece main part adopts reinforced concrete prefabrication to form, and adjacent invert piece main part passes through the fixing bolt subassembly to be connected, and adjacent invert piece main part connection terminal surface is provided with first waterstop and second waterstop, and the escape canal has been seted up at the middle part of invert piece main part, and the outlet that communicates with the escape canal is seted up to invert piece main part both sides. This inverted arch prefabricated section does not need on-the-spot preparation, simple to operate, and the efficiency of construction is high, connects through first bolt and second bolt cooperation between the adjacent inverted arch prefabricated section, will connect the first waterstop and the second waterstop of face department and compress tightly, has improved the sealed stagnant water effect between the festival, drains away ponding through the escape canal, avoids appearing leaking, the infiltration phenomenon takes place, improves tunnel construction quality.

Description

Can improve waterproof novel inverted arch prefabricated section structure of railway tunnel internode
Technical Field
The utility model belongs to the technical field of the railway tunnel construction is relevant, specifically a can improve waterproof nature's between railway tunnel festival novel inverted arch prefabricated block structure.
Background
In a railway tunnel constructed by adopting a TBM (tunnel boring machine), the running of a matching system behind the boring machine and the operation of a marshalling of a diesel locomotive for transporting materials are carried out on an inverted arch of the tunnel, and the inverted arch is an important component of a tunnel lining and an integral ballast bed. In the tunnel constructed by the tunneling machine, the inverted arch is paved by a prefabricated inverted arch block while tunneling. Therefore, the laying quality of the inverted arch blocks has important influences on the smooth construction of the development machine, the lining quality of the tunnel, the construction quality of the whole ballast bed and the operation condition of the tunnel.
When the traditional prefabricated inverted arch block is laid, the internode of the inverted arch is in an independent free state after being installed, and the only way for fixing the inverted arch block is to pour fine stone mortar at the bottom of the inverted arch block for fixation. However, because of no axial pretightening force between the inverted arch blocks, the water stop belts between the inverted arch blocks are basically not compressed and even have gaps, the water stop effect is extremely poor, water leakage and water seepage phenomena can occur, and the tunnel construction quality is influenced.
SUMMERY OF THE UTILITY MODEL
The utility model aims at having above-mentioned problem to current technique, provided a can improve the waterproof novel inverted arch prefabricated block structure of railway tunnel internode, the technical problem that the device will solve is: how to solve the technical problem that the water stopping effect is poor when the existing inverted arch block is laid.
The purpose of the utility model can be realized by the following technical proposal:
the utility model provides a can improve waterproof novel inverted arch prefabricated section structure between railway tunnel festival, including inverted arch piece main part, two adjacent inverted arch piece main parts are connected through the fixing bolt subassembly, the fixing bolt subassembly includes first bolt and second bolt, inverted arch piece main part has prefabricated first bolt mounting hole and the second bolt mounting hole that is used for installing first bolt and second bolt respectively, two adjacent inverted arch piece main part are connected the terminal surface and are provided with the second waterstop, the escape canal has been seted up at the middle part of inverted arch piece main part, the escape canal junction of two adjacent inverted arch piece main parts is provided with first waterstop, the outlet with the escape canal intercommunication is all seted up to the both sides of inverted arch piece main part, the upper portion of inverted arch piece main part is provided with a plurality of track grooves that are used for installing transportation track.
The utility model discloses a theory of operation is: first bolt mounting hole and second bolt mounting hole are all prefabricated at the both ends of every inverted arch piece main part, during the installation, two adjacent inverted arch prefabricated sections are connected through first bolt and second bolt, will connect the first waterstop and the second waterstop of face department and compress tightly, ensure the sealed stagnant water effect between the inverted arch piece, the ponding of inverted arch piece main part both sides is discharged into the escape canal through the outlet, drain away through the escape canal, prevent ponding in the tunnel, avoid appearing leaking, the infiltration phenomenon takes place, help improving tunnel construction quality.
The inverted arch block main body is formed by pouring reinforced concrete in advance before installation, grouting holes are formed in the inverted arch block main body, the inverted arch block main body is of a reinforced concrete structure, the strength is high, the durability is strong, and the grouting holes are used for pouring fine aggregate concrete to the bottom of the inverted arch block to fix.
First waterstop mounting groove and second waterstop mounting groove have all been seted up to the front and back connection terminal surface of invert piece main part, and first waterstop mounting groove is located the both ends of escape canal, and first waterstop is installed in first waterstop mounting groove, and the second waterstop is installed in the second waterstop mounting groove.
The first water stop and the second water stop are both composite rubber water stops, are good in waterproof and water-stopping effects and strong in corrosion resistance, and can be effectively attached to a concrete interface.
All seted up the third waterstop mounting groove on the connection terminal surface about the invert piece main part, the connection terminal surface department all is provided with the waterstop about the invert piece main part, and the waterstop is installed in the third waterstop mounting groove, increases the waterproof nature of both sides junction.
The track groove is internally provided with a plurality of track bolt mounting holes, the transportation track is fixed in the track groove through track bolts, the track bolts are mounted in the track bolt mounting holes, and the track groove is arranged to facilitate the mounting of the transportation track.
And a track bolt is embedded in the track bolt mounting hole and is a spike bolt.
By adopting the structure, the quick installation of the transportation track can be realized by adopting the pre-embedded track bolts for connection.
A plurality of top lifting holes are formed in the upper end face of the inverted arch block main body, a plurality of bottom lifting holes are formed in the lower end face of the inverted arch block main body, and hanging rods used for lifting are pre-buried in the top lifting holes and the bottom lifting holes.
The structure more than adopting sets up top hole of hoist and mount and bottom hole of hoist and mount messenger and faces upward the top and the bottom of encircleing the piece and all can be connected with handling equipment fast, is convenient for face upward the handling and the installation of encircleing the piece.
The first bolt is preferably an outer hexagon bolt, the first bolt mounting hole is a straight through hole which is obliquely formed, a first flaring groove is formed in the insertion end of the first bolt mounting hole and is convenient for the bolt to be screwed, and a threaded sleeve matched with the first bolt is pre-buried in the inverted arch block main body.
Structure more than adopting, when two adjacent inverted arch piece main parts were installed, first bolt passed first bolt mounting hole and was connected with the threaded sleeve pipe of another inverted arch piece, compressed tightly the waterstop, increased the stagnant water performance.
The second bolt is preferably an arc-shaped bolt, the second bolt mounting hole is an arc-shaped hole matched with the second bolt, a second flaring groove is formed in the port of the second bolt mounting hole, and the second flaring groove is arranged to facilitate screwing of a nut.
Structure more than adopting, during the installation of two adjacent inverted arch piece main parts, the second bolt is followed the second bolt mounting hole and is inserted and wear out from the second bolt mounting hole of another inverted arch piece, embolias the gasket at the both ends of second bolt to use the nut to screw up, reduce two gaps of facing upward between the arch piece, compress tightly the waterstop, increase the stagnant water performance.
Compared with the prior art, the novel inverted arch prefabricated block structure capable of improving the water resistance between the sections has the following advantages:
1. this novel inverted arch prefabricated section is pour in advance and is formed, does not need on-the-spot preparation, and simple to operate improves the efficiency of construction, through first bolt and second bolt cooperation fastening connection between the adjacent inverted arch prefabricated section to the first waterstop and the second waterstop that will connect face department compress tightly, have improved the sealed stagnant water effect between inverted arch block festival.
2. The upward arch block body is provided with the water drainage hole and the water drainage ditch, water is drained through the water drainage ditch, water accumulation in the tunnel is prevented, water leakage and water seepage are avoided, and the tunnel construction quality is improved.
3. The top and the bottom of the inverted arch block main body are both provided with hoisting holes, the hoisting is convenient, the inverted arch block main body is provided with track grooves, and the transportation track is convenient to install.
Drawings
Fig. 1 is a schematic top view of the present invention;
fig. 2 is a schematic front view of the present invention;
fig. 3 is a schematic view of the installation structure of the present invention;
FIG. 4 is a schematic view of the cross-sectional structure A-A of FIG. 3;
FIG. 5 is a view of FIG. 4
Figure 696251DEST_PATH_IMAGE001
The enlarged structure of the part is shown schematically;
FIG. 6 is a schematic view of the cross-sectional structure B-B of FIG. 3;
FIG. 7 is a view of FIG. 6
Figure 898824DEST_PATH_IMAGE002
The enlarged structure of the part is shown schematically;
fig. 8 is a schematic structural view of a boom of the present invention;
in the figure: 1-inverted arch block body, 2-drainage ditch, 3-drainage hole, 4-grouting hole, 5-top hoisting hole, 6-bottom hoisting hole, 7-first waterstop mounting groove, 8-second waterstop mounting groove, 9-track groove, 10-track bolt mounting hole, 11-first bolt mounting hole, 12-first flaring groove, 13-second bolt mounting hole, 14-second flaring groove, 15-third waterstop mounting groove, 16-first waterstop, 17-second waterstop, 18-first bolt, 19-second bolt, 20-threaded sleeve and 21-suspender.
Detailed Description
The technical solution of the present patent will be described in further detail with reference to the following embodiments.
Reference will now be made in detail to embodiments of the present patent, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present patent and are not to be construed as limiting the present patent.
In the description of this patent, it is to be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings for the convenience of describing the patent and for the simplicity of description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the patent.
In the description of this patent, it is noted that unless otherwise specifically stated or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly and can include, for example, fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed. The specific meaning of the above terms in this patent may be understood by those of ordinary skill in the art as appropriate.
Referring to fig. 1 to 8, the present embodiment provides a novel inverted arch precast block structure capable of improving water resistance between railway tunnel sections, including an inverted arch block main body 1, two adjacent inverted arch block main bodies 1 are connected by a fixing bolt assembly, the fixing bolt assembly includes a first bolt 18 and a second bolt 19, the inverted arch block main body 1 is respectively prefabricated with a first bolt mounting hole 11 and a second bolt mounting hole 13 for mounting the first bolt 18 and the second bolt 19, a second water stop 17 is disposed on a connection end surface of the two adjacent inverted arch block main bodies 1, a drainage ditch 2 is disposed in the middle of the inverted arch block main body 1, a first water stop 16 is disposed at a connection position of the drainage ditches 2 of the two adjacent inverted arch block main bodies 1, drainage holes 3 communicated with the drainage ditch 2 are disposed on both sides of the inverted arch block main body 1, and a plurality of track grooves 9 for mounting transportation tracks are disposed on the upper portion of the inverted arch block main body 1; first bolt mounting hole 11 and second bolt mounting hole 13 are all prefabricated at the both ends of every inverted arch piece main part 1, during the installation, two adjacent inverted arch prefabricated pieces are connected through first bolt 18 and second bolt 19, will connect the first waterstop 16 and the second waterstop 17 of face department and compress tightly, ensure the sealed stagnant water effect between the inverted arch piece, the ponding of 1 both sides of inverted arch piece main part is passed through outlet 3 and is arranged escape canal 2, drain away through escape canal 2, prevent ponding in the tunnel, avoid appearing leaking, the infiltration phenomenon takes place, help improving tunnel construction quality.
It forms to lean on arch piece main part 1 to adopt reinforced concrete to pour in advance before the installation, has seted up slip casting hole 4 on the inverted arch piece main part 1, and inverted arch piece main part 1 is reinforced concrete structure intensity height, and the durability is strong, and slip casting hole 4 is used for pouring the pea gravel concreten to inverted arch piece bottom and fixes.
First waterstop mounting groove 7 and second waterstop mounting groove 8 have all been seted up to connecting end face around the arch piece main part 1 of facing upward, and first waterstop mounting groove 7 is located the both ends of escape canal 2, and first waterstop 16 is installed in first waterstop mounting groove 7, and second waterstop 17 is installed in second waterstop mounting groove 8.
The first water stop band 16 and the second water stop band 17 both adopt composite rubber water stop bands, have good waterproof and water-stopping effects and strong corrosion resistance, and can be effectively attached to a concrete interface.
It all has seted up third waterstop mounting groove 15 on the connection terminal surface about the arch piece main part 1 to face upward, and the connection terminal surface department all is provided with the waterstop about arch piece main part 1, and the waterstop is installed in third waterstop mounting groove 15, increases the waterproof nature of both sides junction.
A plurality of track bolt mounting holes 10 are formed in the track groove 9, the transportation track is fixed in the track groove 9 through track bolts, the track bolts are mounted in the track bolt mounting holes 10, and the track groove 9 is arranged to facilitate installation of the transportation track.
Track bolts are pre-buried in the track bolt mounting holes 10 and are spike bolts, and rapid mounting of the transportation tracks can be achieved by adopting the pre-buried track bolts for connection.
The upper end face of the inverted arch block body 1 is provided with a plurality of top hoisting holes 5, the lower end face of the inverted arch block body 1 is provided with a plurality of bottom hoisting holes 6, the top hoisting holes 5 and the bottom hoisting holes 6 are internally pre-embedded with a hoisting rod 21 for hoisting, the top hoisting holes 5 and the bottom hoisting holes 6 are arranged to enable the top and the bottom of the inverted arch block to be rapidly connected with hoisting equipment, and the overhead and installation of the inverted arch block are facilitated.
First bolt 18 is preferably outer hexagon bolt, and first bolt mounting hole 11 is the straight perforation that the slope was seted up, and the end of inserting of first bolt mounting hole 11 is provided with first flaring groove 12, sets up first flaring groove 12 and is convenient for the bolt to twist, pre-buries in the inverted arch piece main part 1 with first bolt 18 complex threaded sleeve 20, and when two adjacent inverted arch piece main parts 1 were installed, first bolt 18 passed first bolt mounting hole 11 and is connected with the threaded sleeve 20 of another piece of facing upward, compresses tightly the waterstop, increases stagnant water performance.
The second bolt 19 is preferably an arc-shaped bolt, the second bolt mounting hole 13 is an arc-shaped hole matched with the second bolt 19, a second flaring groove 14 is formed in the port of the second bolt mounting hole 13, the second flaring groove 14 is arranged to facilitate screwing of nuts, when two adjacent inverted arch block main bodies 1 are mounted, the second bolt 19 is inserted into the second bolt mounting hole 13 from the second bolt mounting hole 13 and penetrates out of the second bolt mounting hole 13 of the other inverted arch block, gaskets are sleeved at two ends of the second bolt 19 and screwed down by using nuts, the gap between the two inverted arch blocks is reduced, a water stop is compressed, and the water stopping performance is improved.
The utility model discloses a theory of operation:
the utility model provides a novel inverted arch prefabricated block structure capable of improving the water resistance between railway tunnel sections, an inverted arch block main body 1 is made by pre-pouring reinforced concrete, a grouting hole 4 is arranged on the inverted arch block main body 1, the grouting hole 4 is used for pouring fine stone concrete to the bottom of the inverted arch block for fixing, suspenders 21 for hoisting are pre-buried in a top hoisting hole 5 and a bottom hoisting hole 6, and are connected with hoisting equipment through the suspenders 21, thereby facilitating the hoisting and installation of the inverted arch block; when the inverted arch block is installed, a first water stop 16 and a second water stop 17 are respectively installed in a first water stop installation groove 7 and a second water stop installation groove 8, two adjacent inverted arch block main bodies 1 are tightly pressed by a pre-tightening tool to be tightly matched, and the water stops at the connection end surfaces of the two adjacent inverted arch block main bodies 1 are in a tight pressing state; the first bolt 18 penetrates through the first bolt mounting hole 11 to be connected with a threaded sleeve 20 of another inverted arch block and is screwed, the second bolt 19 is inserted into the second bolt mounting hole 13 from the second bolt mounting hole 13 and penetrates out of the second bolt mounting hole 13 of the other inverted arch block, flat pads are sleeved at two ends of the second bolt 19 and are screwed by nuts, the first bolt 18 and the second bolt 19 lock the positions of two adjacent inverted arch block bodies 1 and tightly press the first water stop band 16 and the second water stop band 17 at the connecting surface, a sealing and water stopping effect between the inverted arch blocks is ensured, accumulated water at two sides of the inverted arch block bodies 1 is discharged into the drainage ditch 2 through the drainage ditch 2 to be discharged, accumulated water in a tunnel is prevented, water leakage and water seepage are avoided, the tunnel construction quality is improved, the transportation track is fixed in the track groove 9 through the track bolt, and the track installation is quick.
The utility model provides a pair of can improve waterproof nature's between railway tunnel festival novel inverted arch prefabricated section structure, inverted arch prefabricated section pours in advance and forms, do not need on-the-spot preparation, high durability and convenient installation, improve the efficiency of construction, through first bolt 18 and 19 cooperation fastening connections of second bolt between the adjacent inverted arch prefabricated section, and compress tightly first waterstop 16 and the second waterstop 17 of connecting face department, the sealed stagnant water effect between inverted arch piece festival has been improved, outlet 3 and escape canal 2 have been seted up on the inverted arch piece main part 1, arrange away through escape canal 2, prevent ponding in the tunnel, avoid appearing leaking, the infiltration phenomenon takes place, help improving tunnel construction quality, the top and the bottom of inverted arch piece main part 1 all set up the hole for hoist, the handling is convenient, set up track groove 9 on the inverted arch piece main part 1, transportation track simple to operate.
Although the preferred embodiments of the present patent have been described in detail, the present patent is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present patent within the knowledge of those skilled in the art.

Claims (10)

1. A novel inverted arch precast block structure capable of improving water resistance between railway tunnel sections comprises inverted arch block bodies (1) and is characterized in that two adjacent inverted arch block bodies (1) are connected through fixing bolt assemblies, each fixing bolt assembly comprises a first bolt (18) and a second bolt (19), the inverted arch block bodies (1) are respectively prefabricated with a first bolt mounting hole (11) and a second bolt mounting hole (13) for mounting the first bolt (18) and the second bolt (19), the connecting end faces of the two adjacent inverted arch block bodies (1) are provided with second water stop belts (17), the middle parts of the inverted arch block bodies (1) are provided with drainage ditches (2), the joints of the drainage ditches (2) of the two adjacent inverted arch block bodies (1) are provided with first water stop belts (16), the two sides of the inverted arch block bodies (1) are provided with drainage ditches (3) communicated with the drainage ditches (2), the upper part of the inverted arch block main body (1) is provided with a plurality of track grooves (9) for installing transportation tracks.
2. The novel inverted arch precast block structure capable of improving the water resistance between railway tunnel sections as claimed in claim 1, wherein the inverted arch block main body (1) is of reinforced concrete structure, and the inverted arch block main body (1) is provided with grouting holes (4).
3. The novel inverted arch precast block structure capable of improving the water resistance between the railway tunnel sections according to claim 2, wherein the front and rear connection end surfaces of the inverted arch main body (1) are respectively provided with a first water stop mounting groove (7) and a second water stop mounting groove (8), the first water stop mounting grooves (7) are located at both ends of the drainage ditch (2), the first water stop (16) is mounted in the first water stop mounting groove (7), and the second water stop (17) is mounted in the second water stop mounting groove (8).
4. The novel inverted arch precast block structure capable of improving the water resistance of railway tunnel internodes according to claim 2 or 3, wherein the first water stop belt (16) and the second water stop belt (17) are both composite rubber water stop belts.
5. The novel inverted arch precast block structure capable of improving the water resistance between the railway tunnel sections as claimed in claim 1, wherein the left and right connection end faces of the inverted arch main body (1) are respectively provided with a third water stop mounting groove (15).
6. The novel inverted arch preform structure capable of improving water resistance between railway tunnel sections as claimed in claim 2, wherein a plurality of rail bolt mounting holes (10) are provided in the rail groove (9), the transportation rail is fixed in the rail groove (9) by rail bolts, and the rail bolts are mounted in the rail bolt mounting holes (10).
7. The novel inverted arch precast block structure capable of improving the water resistance between railway tunnel joints according to claim 6, wherein the rail bolt mounting holes (10) are pre-embedded with rail bolts, and the rail bolts are spike bolts.
8. The novel inverted arch precast block structure capable of improving the water resistance between railway tunnel sections as claimed in claim 2, wherein the inverted arch block body (1) has a plurality of top lifting holes (5) formed on the upper end surface thereof, the inverted arch block body (1) has a plurality of bottom lifting holes (6) formed on the lower end surface thereof, and the top lifting holes (5) and the bottom lifting holes (6) are embedded with hanging rods (21) for lifting.
9. The novel inverted arch precast block structure capable of improving the water resistance between railway tunnel joints according to claim 2, wherein the first bolt (18) is an outer hexagon bolt, the first bolt mounting hole (11) is a straight through hole which is obliquely formed, the insertion end of the first bolt mounting hole (11) is provided with a first flaring groove (12), and a threaded sleeve (20) which is matched with the first bolt (18) is pre-embedded in the inverted arch block main body (1).
10. The novel inverted arch precast block structure capable of improving the water resistance between railway tunnel sections as claimed in claim 2, wherein the second bolt (19) is an arc bolt, the second bolt mounting hole (13) is an arc hole matched with the second bolt (19), and a second flared groove (14) is provided at a port of the second bolt mounting hole (13).
CN202021389350.9U 2020-07-15 2020-07-15 Can improve waterproof novel inverted arch prefabricated section structure of railway tunnel internode Active CN212716656U (en)

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CN202021389350.9U CN212716656U (en) 2020-07-15 2020-07-15 Can improve waterproof novel inverted arch prefabricated section structure of railway tunnel internode

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