CN106761838B - Tunnel Second Lining arch unit and its arch frame structure and erection method constituted - Google Patents
Tunnel Second Lining arch unit and its arch frame structure and erection method constituted Download PDFInfo
- Publication number
- CN106761838B CN106761838B CN201710090961.XA CN201710090961A CN106761838B CN 106761838 B CN106761838 B CN 106761838B CN 201710090961 A CN201710090961 A CN 201710090961A CN 106761838 B CN106761838 B CN 106761838B
- Authority
- CN
- China
- Prior art keywords
- arch
- tunnel
- arc
- lining
- arch unit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000000034 method Methods 0.000 title claims abstract description 22
- 230000002787 reinforcement Effects 0.000 claims abstract description 120
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 11
- 239000010959 steel Substances 0.000 claims abstract description 11
- 210000003205 muscle Anatomy 0.000 claims description 87
- 239000000463 material Substances 0.000 claims description 29
- 238000004519 manufacturing process Methods 0.000 claims description 8
- 238000003466 welding Methods 0.000 claims description 6
- 239000004744 fabric Substances 0.000 claims description 5
- 238000005520 cutting process Methods 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 2
- 239000010410 layer Substances 0.000 description 128
- 230000003014 reinforcing effect Effects 0.000 description 9
- 210000000988 bone and bone Anatomy 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000003447 ipsilateral effect Effects 0.000 description 2
- 239000011241 protective layer Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 1
- 230000004807 localization Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/04—Lining with building materials
- E21D11/10—Lining with building materials with concrete cast in situ; Shuttering also lost shutterings, e.g. made of blocks, of metal plates or other equipment adapted therefor
- E21D11/107—Reinforcing elements therefor; Holders for the reinforcing elements
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Structural Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Lining And Supports For Tunnels (AREA)
Abstract
The invention discloses a kind of Tunnel Second Lining arch unit and its arch frame structures and erection method that are constituted, Tunnel Second Lining arch unit includes the arch unit main reinforcement of at least three equal lengths, it is fixedly connected into arch unit skeleton by several stirrups outside all arch unit frameworks, arch unit skeleton both ends end is fixedly connected with angle cleat respectively；Arch frame structure includes several Tunnel Second Lining arch units, and all Tunnel Second Lining arch units connect into arc-shaped arch sequentially through bolt and nut；It is welded and fixed on the outside of arc-shaped arch and is connected with outer layer circumferential direction main reinforcement, be welded and fixed on the inside of arc-shaped arch and be connected with internal layer circumferential direction main reinforcement, several arc-shaped arch parallel intervals constitute arch component side by side.The present invention can be accurately positioned the position of secondary lining double layer bar, guarantee that the thickness of concrete cover of double steel bar reaches design requirement, while it is possible to prevente effectively from the phenomenon that splash guard is punctured.
Description
Technical field
The present invention relates to loess tunnel construction technical field more particularly to a kind of Tunnel Second Lining arch unit and its institutes
The arch frame structure and erection method of composition.
Background technique
An existing technical problem is how to position the first ring of secondary lining when Tunnel Second Lining Construction at present
To reinforcing bar.Traditional localization method is the reinforcing bar of selecting design by being soldered to design length, by artificial brake forming,
In forming process, frictional force is larger between reinforcing bar and anchor bar of waterproof plate in tunnels, causes splash guard is different degrees of to be damaged, reduces waterproof
The service life of plate.Meanwhile outer layer circumferential reinforcement after molding is close to splash guard, and when pumping secondary lining concrete, outer layer
Design requirement is obviously not achieved in the thickness of concrete cover of circumferential reinforcement, changes the actual mechanical behavior of secondary lining.Especially
It is to greatly reduce its waterproof ability after splash guard is damaged, outer layer circumferential reinforcement weathers and corrodes in rich water tunnel
Phenomenon also increases the risk during tunnel operation than more serious while reducing the service life of secondary lining.
Summary of the invention
Place in view of the shortcomings of the prior art, the purpose of the present invention is to provide a kind of Tunnel Second Lining arch lists
Member and its arch frame structure and erection method constituted, the present invention can be accurately positioned the position of secondary lining double layer bar, protect
The thickness of concrete cover of card double steel bar reaches design requirement, while it is possible to prevente effectively from the phenomenon that splash guard is punctured hair
It is raw；Especially in large cross-section tunnel secondary lining steel bar arrangement, can play prevents first secondary lining circumferential reinforcement from laying
When reinforcing bar rollover effect.
The purpose of the invention is achieved by the following technical solution:
A kind of Tunnel Second Lining arch unit, the arch unit main reinforcement including at least three equal lengths, all arches
Arch unit skeleton, the arch unit skeleton both ends end difference are fixedly connected by several stirrups outside unit framework
It is fixedly connected with angle cleat, is provided with bolt hole on the angle cleat.
In order to which this Tunnel Second Lining arch unit is better achieved, the stirrup is along the length outside arch unit framework
Degree direction uniform intervals are arranged.
The further technical solution of this Tunnel Second Lining arch unit is: bolt there are two opening on the angle cleat
Hole is fitted with bolt and nut in bolt hole；The angle cleat is fixedly connected with arch unit main reinforcement end.
The preferred technical solution of Tunnel Second Lining arch unit of the present invention is: the arch unit main reinforcement is by HRB335 steel
Muscle material or the manufacture of HRB400 bar material, the diameter of arch unit main reinforcement are 20mm~28mm；The stirrup is by HRB335 steel
Muscle material or the manufacture of HRB400 bar material, the diameter of stirrup are 10mm~14mm；The angle cleat is by Q235 Steel material system
It makes.
The first preferred Tunnel Second Lining arch unit embodiment of the invention: the quantity of the arch unit main reinforcement
It is three, three arch unit main reinforcements collectively form the arch unit framework that a section is equilateral triangle.
Second of preferred Tunnel Second Lining arch unit embodiment of the invention: the quantity of the arch unit main reinforcement
It is four, four arch unit main reinforcements collectively form the arch unit framework that a section is square, two neighboring arch list
The clear spacing of first main reinforcement is 350mm.
A kind of arch frame structure being made of Tunnel Second Lining arch unit, including several Tunnel Second Lining arches
Unit is fitted with bolt and nut in the bolt hole of the angle cleat of two neighboring Tunnel Second Lining arch unit, owns
Tunnel Second Lining arch unit successively connects into arc-shaped arch sequentially through bolt and nut；On the outside of the arc-shaped arch
It is welded and fixed and is connected with several outer layer circumferential direction main reinforcements, be welded and fixed on the inside of the arc-shaped arch and be connected with several inner layer rings
To main reinforcement；Several arc-shaped arch parallel intervals constitute arch component, all arc-shaped arches of the arch component side by side
Outside is connected and fixed by several outer layer genesis analysis muscle, and all outer layer genesis analysis muscle respectively correspond circumferential with each outer layer
Main reinforcement is connected and fixed；It is solid by the connection of several internal layer genesis analysis muscle on the inside of all arc-shaped arches of the arch component
Fixed, all internal layer genesis analysis muscle are respectively corresponded to be connected and fixed with each internal layer circumferential direction main reinforcement.
Currently preferred arch frame structure technical solution is: the outer layer genesis analysis muscle and internal layer genesis analysis muscle are one by one
It is correspondingly arranged, is fixedly connected with lacing wire between the outer layer genesis analysis muscle and corresponding internal layer genesis analysis muscle.
The preferred technical solution of arch frame structure of the present invention is: the outer layer circumferential direction main reinforcement and internal layer circumferential direction main reinforcement by
HRB335 bar material or the manufacture of HRB400 bar material, the diameter of the outer layer circumferential direction main reinforcement and internal layer circumferential direction main reinforcement are
25mm；The lacing wire is manufactured by HRB335 bar material, and the diameter of the lacing wire is 6mm.
A kind of Tunnel Second Lining arch unit constitutes the erection method of arch frame structure, and method and step is as follows:
A, it prepares Tunnel Second Lining arch unit: the arch unit main reinforcement of three equal lengths is arranged parallel altogether
With constituting the arch unit framework that section is equilateral triangle, the arch unit framework along arch unit framework length
Degree direction uniform intervals are fixedly connected with several stirrups, and the arch unit framework is connected into arch by each stirrup
Unit skeleton；It is fixedly connected with angle cleat respectively in arch unit skeleton both ends end, is provided on each angle cleat up and down
A Tunnel Second Lining arch unit can be obtained in two bolts hole；
B, it sets up arc-shaped arch: several Tunnel Second Lining arch units being sequentially connected and set up circular arch
Frame, is fitted with bolt and nut in the bolt hole of the angle cleat of two neighboring Tunnel Second Lining arch unit, and adjacent two
It is fixedly connected between a Tunnel Second Lining arch unit by the bolt and nut in angle cleat bolt hole, all tunnels two
Secondary lining cutting arch unit successively connects into arc-shaped arch, the circular shape of the arc-shaped arch sequentially through bolt and nut
Match with the circular shape of tunnel vault；
C, several arc-shaped arches are successively evenly arranged along length of tunnel direction on tunnel vault and constitute vault
Skeleton, each arc-shaped arch outside, which is welded and fixed, is connected with several outer layer circumferential direction main reinforcements, weldering on the inside of each arc-shaped arch
It connects and is fixedly connected with several internal layer circumferential direction main reinforcements；It is fixed on the outside of the vault skeleton along length of tunnel direction uniform parallel
Several outer layer genesis analysis muscle, each outer layer genesis analysis muscle is successively corresponding on the outside of all arc-shaped arches to be welded and fixed
(i.e. all outer layer genesis analysis muscle are respectively corresponded to be connected and fixed with each outer layer circumferential direction main reinforcement on the outside of arc-shaped arch)；It is described
Several internal layer circumferential direction main reinforcements, each internal layer circumferential direction main reinforcement are fixed with along length of tunnel direction uniform parallel on the inside of vault skeleton
It is successively corresponding on the inside of all arc-shaped arches to be welded and fixed that (i.e. all internal layer genesis analysis muscle respectively correspond and arc-shaped arch
Each internal layer circumferential direction main reinforcement of inside is connected and fixed)；
D, the outer layer genesis analysis muscle in the vault skeleton is arranged in a one-to-one correspondence with internal layer genesis analysis muscle, the outer layer
It is fixedly connected with lacing wire between genesis analysis muscle and corresponding internal layer genesis analysis muscle, and finally sets up arch frame structure.
A kind of Tunnel Second Lining arch unit constitutes the erection method of arch frame structure, and method and step is as follows:
A, it prepares Tunnel Second Lining arch unit: the arch unit main reinforcement of four equal lengths is arranged parallel altogether
With constituting the arch unit framework that is square of a section, the arch unit framework along arch unit framework length side
Several stirrups are fixedly connected with to uniform intervals, the arch unit framework is connected into arch unit by each stirrup
Skeleton；It is fixedly connected with angle cleat respectively in arch unit skeleton both ends end, two up and down are provided on each angle cleat
A Tunnel Second Lining arch unit can be obtained in bolt hole；
B, it sets up arc-shaped arch: several Tunnel Second Lining arch units being sequentially connected and set up circular arch
Frame, is fitted with bolt and nut in the bolt hole of the angle cleat of two neighboring Tunnel Second Lining arch unit, and adjacent two
It is fixedly connected between a Tunnel Second Lining arch unit by the bolt and nut in angle cleat bolt hole, all tunnels two
Secondary lining cutting arch unit successively connects into arc-shaped arch, the circular shape of the arc-shaped arch sequentially through bolt and nut
Match with the circular shape of tunnel vault；
C, several arc-shaped arches are successively evenly arranged along length of tunnel direction on tunnel vault and constitute vault
Skeleton, each arc-shaped arch outside, which is welded and fixed, is connected with several outer layer circumferential direction main reinforcements, weldering on the inside of each arc-shaped arch
It connects and is fixedly connected with several internal layer circumferential direction main reinforcements；It is fixed on the outside of the vault skeleton along length of tunnel direction uniform parallel
Several outer layer genesis analysis muscle, each outer layer genesis analysis muscle is successively corresponding on the outside of all arc-shaped arches to be welded and fixed
(i.e. all outer layer genesis analysis muscle are respectively corresponded to be connected and fixed with each outer layer circumferential direction main reinforcement on the outside of arc-shaped arch)；It is described
Several internal layer circumferential direction main reinforcements, each internal layer circumferential direction main reinforcement are fixed with along length of tunnel direction uniform parallel on the inside of vault skeleton
It is successively corresponding on the inside of all arc-shaped arches to be welded and fixed that (i.e. all internal layer genesis analysis muscle respectively correspond and arc-shaped arch
Each internal layer circumferential direction main reinforcement of inside is connected and fixed)；
D, the outer layer genesis analysis muscle in the vault skeleton is arranged in a one-to-one correspondence with internal layer genesis analysis muscle, the outer layer
It is fixedly connected with lacing wire between genesis analysis muscle and corresponding internal layer genesis analysis muscle, and finally sets up arch frame structure.
The present invention compared with the prior art, have the following advantages that and the utility model has the advantages that
Tunnel Second Lining arch unit through the invention can be accurately positioned the position of secondary lining double layer bar, protect
The thickness of concrete cover of card double steel bar reaches design requirement, while it is possible to prevente effectively from splash guard is punctured rear secondary lining
The phenomenon that building percolating water occurs；In Tunnel Second Lining especially large cross-section tunnel secondary lining steel bar arrangement, can play
The effect of reinforcing bar rollover when preventing first circumferential reinforcement from laying, working efficiency is obviously higher compared with conventional method, and applied value is bigger,
Operation difficulty is lower, and engineering practice is stronger, has a good application prospect and promotional value.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of Tunnel Second Lining arch unit of the present invention；
Fig. 2 is the structure that two neighboring Tunnel Second Lining arch unit is connected and fixed by angle cleat, bolt and nut
Schematic diagram；
Fig. 3 be Fig. 2 in A-A to cross-sectional view；
Fig. 4 is the cross-sectional view of B-B direction in Fig. 2；
Fig. 5 is the structural schematic diagram of arch frame structure of the present invention；
Fig. 6 be Fig. 5 C-C to cross-sectional view.
Wherein, title corresponding to the appended drawing reference in attached drawing are as follows:
1- arch unit main reinforcement, 2- stirrup, 3- angle cleat, 4- bolt hole, 5- bolt and nut, 6- outer layer are circumferential
Main reinforcement, 7- internal layer circumferential direction main reinforcement, 8- outer layer genesis analysis muscle, 9- internal layer genesis analysis muscle, 10- lacing wire.
Specific embodiment
The present invention is described in further detail below with reference to embodiment:
Embodiment one
As shown in Figure 1 to 4, a kind of Tunnel Second Lining arch unit, the arch unit master including three equal lengths
Muscle 1, three arch unit main reinforcements 1 collectively form the arch unit framework that a section is equilateral triangle, the arch of the present embodiment
Frame unit main reinforcement 1 is manufactured by HRB335 bar material or HRB400 bar material, the diameter of arch unit main reinforcement 1 be 20mm~
28mm.Arch unit skeleton, arch unit skeleton two are fixedly connected by several stirrups 2 outside all arch unit frameworks
End end is fixedly connected with angle cleat 3 respectively, is provided with bolt hole 4 on angle cleat 3, the angle cleat 3 of the present embodiment by
The manufacture of Q235 Steel material.As shown in Figure 1 and Figure 2, stirrup 2 is arranged along the length direction uniform intervals outside arch unit framework
Setting；Stirrup 2 is manufactured by HRB335 bar material or HRB400 bar material, and the diameter of stirrup 2 is 10mm~14mm.
As shown in figure 3, opening on angle cleat 3, there are two bolts hole 4, and bolt and nut 5 is fitted in bolt hole 4；
Angle cleat 3 is fixedly connected with all 1 ends of arch unit main reinforcement.3 length of angle cleat of the present embodiment is equal or slightly larger than
The outer most edge width of ipsilateral all arch unit main reinforcements 1.
As shown in figures 5 and 6, a kind of arch frame structure being made of Tunnel Second Lining arch unit, including several
Tunnel Second Lining arch unit cooperates peace in the bolt hole 4 of the angle cleat 3 of two neighboring Tunnel Second Lining arch unit
Equipped with bolt and nut 5, all Tunnel Second Lining arch units are successively spliced into circular arch sequentially through bolt and nut 5
Frame；It is welded and fixed on the outside of arc-shaped arch and is connected with several outer layer circumferential direction main reinforcements 6, connection is welded and fixed on the inside of arc-shaped arch
There are several internal layer circumferential direction main reinforcements 7；Several arc-shaped arch parallel intervals constitute arch component side by side, and arch component owns
Be connected and fixed on the outside of arc-shaped arch by several outer layer genesis analysis muscle 8, all outer layer genesis analysis muscle 8 respectively correspond with
Each outer layer circumferential direction main reinforcement 6 is connected and fixed；Pass through several internal layer genesis analysis on the inside of all arc-shaped arches of arch component
Muscle 9 is connected and fixed, and all internal layer genesis analysis muscle 9 are respectively corresponded to be connected and fixed with each internal layer circumferential direction main reinforcement 7.
As shown in figures 5 and 6, outer layer genesis analysis muscle 8 is arranged in a one-to-one correspondence with internal layer genesis analysis muscle 9, and outer layer is longitudinal
Lacing wire 10 is fixedly connected between distributing reinforcement 8 and corresponding internal layer genesis analysis muscle 9.
The outer layer circumferential direction main reinforcement 6 and internal layer circumferential direction main reinforcement 7 of the present embodiment are by HRB335 bar material or HRB400 reinforcing bar
The diameter of material manufacture, outer layer circumferential direction main reinforcement 6 and internal layer circumferential direction main reinforcement 7 is 25mm；Lacing wire 10 is by HRB335 bar material system
It makes, the diameter of lacing wire 10 is 6mm.
A kind of Tunnel Second Lining arch unit constitutes the erection method of arch frame structure, and method and step is as follows:
A, it prepares Tunnel Second Lining arch unit: the arch unit main reinforcement 1 of three equal lengths is arranged parallel
Collectively form a section be equilateral triangle arch unit framework, arch unit framework along arch unit framework length
Direction uniform intervals are fixedly connected with several stirrups 2, and arch unit framework is connected into arch unit by each stirrup 2
Skeleton；It is fixedly connected with angle cleat 3 respectively in arch unit skeleton both ends end, upper and lower two are provided on each angle cleat 3
A Tunnel Second Lining arch unit can be obtained in a bolt hole 4；
B, it sets up arc-shaped arch: several Tunnel Second Lining arch units being sequentially connected and set up circular arch
Frame is fitted with bolt and nut 5 in the bolt hole 4 of the angle cleat 3 of two neighboring Tunnel Second Lining arch unit, adjacent
It is fixedly connected, is owned by the bolt and nut 5 in 3 bolt hole 4 of angle cleat between two Tunnel Second Lining arch units
Tunnel Second Lining arch unit successively connects into arc-shaped arch, the circular arc of arc-shaped arch sequentially through bolt and nut 5
Shape and the circular shape of tunnel vault match；
C, several arc-shaped arches are successively evenly arranged along length of tunnel direction on tunnel vault and constitute vault
Skeleton, each arc-shaped arch outside, which is welded and fixed, is connected with several outer layer circumferential direction main reinforcements 6, weldering on the inside of each arc-shaped arch
It connects and is fixedly connected with several internal layer circumferential direction main reinforcements 7；If being fixed on the outside of vault skeleton along length of tunnel direction uniform parallel
Dry outer layer genesis analysis muscle 8, each outer layer genesis analysis muscle 8 is successively corresponding on the outside of all arc-shaped arches to be welded and fixed i.e.
All outer layer genesis analysis muscle 8 are respectively corresponded to be connected and fixed with each outer layer circumferential direction main reinforcement 6 on the outside of arc-shaped arch；Vault bone
Several internal layer circumferential direction main reinforcements 7 are fixed with along length of tunnel direction uniform parallel on the inside of frame, each internal layer circumferential direction main reinforcement 7 is successively
It is corresponding on the inside of all arc-shaped arches i.e. all internal layer genesis analysis muscle 9 are welded and fixed to respectively correspond and arc-shaped arch inside
Each internal layer circumferential direction main reinforcement 7 be connected and fixed；
D, the outer layer genesis analysis muscle 8 in vault skeleton is arranged in a one-to-one correspondence with internal layer genesis analysis muscle 9, and outer layer longitudinally divides
It is fixedly connected with lacing wire 10 between cloth muscle 8 and corresponding internal layer genesis analysis muscle 9, and finally sets up arch frame structure.
The present invention can be achieved to be accurately positioned secondary lining outer layer circumferential reinforcement 6, internal layer circumferential reinforcement 7 and outer layer longitudinal direction point
The purpose of cloth muscle 8 and internal layer genesis analysis muscle 9 ensure that concrete cover to reinforcement thickness meets design requirement, avoid
The generation of circumferential reinforcement protective layer thickness deficiency and splash guard disrepair phenomenon caused by traditional distribution method, it is ensured that secondary lining
The mechanical behavior of reinforcing bar meets design requirement, improves the service life of secondary lining, reduces the risk during tunnel operation.
Embodiment two
As shown in Figure 1 to 4, a kind of Tunnel Second Lining arch unit, the arch unit master including four equal lengths
Muscle 1, four arch unit main reinforcements 1 collectively form the arch unit framework that a section is square, two neighboring arch unit
The clear spacing of main reinforcement 1 is 350mm.Arch unit bone is fixedly connected by several stirrups 2 outside all arch unit frameworks
Frame, arch unit skeleton both ends end are fixedly connected with angle cleat 3 respectively, bolt hole 4 are provided on angle cleat 3.
As shown in Figure 1 and Figure 2, stirrup 2 is arranged along the length direction uniform intervals outside arch unit framework.
As shown in figure 3, opening on angle cleat 3, there are two bolts hole 4, and bolt and nut 5 is fitted in bolt hole 4；
Angle cleat 3 is fixedly connected with all 1 ends of arch unit main reinforcement.3 length of angle cleat of the present embodiment is equal or slightly larger than
The outer most edge width of ipsilateral all arch unit main reinforcements 1.
The arch unit main reinforcement 1 of the present embodiment is manufactured by HRB335 bar material or HRB400 bar material, arch unit
The diameter of main reinforcement 1 is 20mm~28mm；Stirrup 2 is manufactured by HRB335 bar material or HRB400 bar material, the diameter of stirrup 2
For 10mm~14mm；Angle cleat 3 is manufactured by Q235 Steel material.
As shown in figures 5 and 6, a kind of arch frame structure being made of Tunnel Second Lining arch unit, including several
Tunnel Second Lining arch unit cooperates peace in the bolt hole 4 of the angle cleat 3 of two neighboring Tunnel Second Lining arch unit
Equipped with bolt and nut 5, all Tunnel Second Lining arch units are successively spliced into circular arch sequentially through bolt and nut 5
Frame；It is welded and fixed on the outside of arc-shaped arch and is connected with several outer layer circumferential direction main reinforcements 6, connection is welded and fixed on the inside of arc-shaped arch
There are several internal layer circumferential direction main reinforcements 7；Several arc-shaped arch parallel intervals constitute arch component side by side, and arch component owns
Be connected and fixed on the outside of arc-shaped arch by several outer layer genesis analysis muscle 8, all outer layer genesis analysis muscle 8 respectively correspond with
Each outer layer circumferential direction main reinforcement 6 is connected and fixed；All outer layer genesis analysis muscle 8 are respectively corresponded to be passed through with each outer layer circumferential direction main reinforcement 6
Welding or improving bud grafting are connected and fixed.All outer layer genesis analysis muscle 8, which are respectively corresponded, passes through welding with each outer layer circumferential direction main reinforcement 6
Or improving bud grafting is connected and fixed.It is connected on the inside of all arc-shaped arches of arch component by several internal layer genesis analysis muscle 9
It is fixed, pass through welding or improving bud grafting by several internal layer genesis analysis muscle 9 on the inside of all arc-shaped arches of arch component
It is connected and fixed.All internal layer genesis analysis muscle 9 are respectively corresponded to be connected and fixed with each internal layer circumferential direction main reinforcement 7, and all internal layers are longitudinal
Distributing reinforcement 9, which is respectively corresponded, to be connected and fixed with each internal layer circumferential direction main reinforcement 7 by welding or improving bud grafting.
As shown in figures 5 and 6, outer layer genesis analysis muscle 8 is arranged in a one-to-one correspondence with internal layer genesis analysis muscle 9, and outer layer is longitudinal
Lacing wire 10 is fixedly connected between distributing reinforcement 8 and corresponding internal layer genesis analysis muscle 9.
The outer layer circumferential direction main reinforcement 6 and internal layer circumferential direction main reinforcement 7 of the present embodiment are by HRB335 bar material or HRB400 reinforcing bar
The diameter of material manufacture, outer layer circumferential direction main reinforcement 6 and internal layer circumferential direction main reinforcement 7 is 25mm；Lacing wire 10 is by HRB335 bar material system
It makes, the diameter of lacing wire 10 is 6mm.
A kind of Tunnel Second Lining arch unit constitutes the erection method of arch frame structure, and method and step is as follows:
A, it prepares Tunnel Second Lining arch unit: the arch unit main reinforcement 1 of four equal lengths is arranged parallel
Collectively form the arch unit framework that a section is square, arch unit framework along arch unit framework length direction
Uniform intervals are fixedly connected with several stirrups 2, and arch unit framework is connected into arch unit bone by each stirrup 2
Frame；It is fixedly connected with angle cleat 3 respectively in arch unit skeleton both ends end, two up and down are provided on each angle cleat 3
A Tunnel Second Lining arch unit can be obtained in bolt hole 4；
B, it sets up arc-shaped arch: several Tunnel Second Lining arch units being sequentially connected and set up circular arch
Frame is fitted with bolt and nut 5 in the bolt hole 4 of the angle cleat 3 of two neighboring Tunnel Second Lining arch unit, adjacent
It is fixedly connected, is owned by the bolt and nut 5 in 3 bolt hole 4 of angle cleat between two Tunnel Second Lining arch units
Tunnel Second Lining arch unit successively connects into arc-shaped arch, the circular arc of arc-shaped arch sequentially through bolt and nut 5
Shape and the circular shape of tunnel vault match；
C, several arc-shaped arches are successively evenly arranged along length of tunnel direction on tunnel vault and constitute vault
Skeleton, each arc-shaped arch outside, which is welded and fixed, is connected with several outer layer circumferential direction main reinforcements 6, weldering on the inside of each arc-shaped arch
It connects and is fixedly connected with several internal layer circumferential direction main reinforcements 7；If being fixed on the outside of vault skeleton along length of tunnel direction uniform parallel
Dry outer layer genesis analysis muscle 8, each outer layer genesis analysis muscle 8 is successively corresponding on the outside of all arc-shaped arches to be welded and fixed i.e.
All outer layer genesis analysis muscle 8 are respectively corresponded to be connected and fixed with each outer layer circumferential direction main reinforcement 6 on the outside of arc-shaped arch；Vault bone
Several internal layer circumferential direction main reinforcements 7 are fixed with along length of tunnel direction uniform parallel on the inside of frame, each internal layer circumferential direction main reinforcement 7 is successively
It is corresponding on the inside of all arc-shaped arches i.e. all internal layer genesis analysis muscle 9 are welded and fixed to respectively correspond and arc-shaped arch inside
Each internal layer circumferential direction main reinforcement 7 be connected and fixed；
D, the outer layer genesis analysis muscle 8 in vault skeleton is arranged in a one-to-one correspondence with internal layer genesis analysis muscle 9, and outer layer longitudinally divides
It is fixedly connected with lacing wire 10 between cloth muscle 8 and corresponding internal layer genesis analysis muscle 9, and finally sets up arch frame structure.
The present invention can be achieved to be accurately positioned secondary lining outer layer circumferential reinforcement 6, internal layer circumferential reinforcement 7 and outer layer longitudinal direction point
The purpose of cloth muscle 8 and internal layer genesis analysis muscle 9 ensure that concrete cover to reinforcement thickness meets design requirement, avoid
The generation of circumferential reinforcement protective layer thickness deficiency and splash guard disrepair phenomenon caused by traditional distribution method, it is ensured that secondary lining
The mechanical behavior of reinforcing bar meets design requirement, improves the service life of secondary lining, reduces the risk during tunnel operation.
Above embodiment is a preferred embodiment of the present invention, is not for limiting implementation and power of the invention
Sharp range, the equivalence changes and approximate replacement that content described in all ranges of patent protection according to the present invention is made should all
It is within the scope of the present invention.
Claims (5)
1. a kind of arch frame structure being made of Tunnel Second Lining arch unit, it is characterised in that: including several tunnels two
Secondary lining cutting arch unit, the Tunnel Second Lining arch unit include the arch unit main reinforcement (1) of at least three equal lengths,
Arch unit skeleton, stirrup (2) edge are fixedly connected by several stirrups (2) outside all arch unit main reinforcements (1)
Length direction uniform intervals outside arch unit framework be arranged, the arch unit skeleton both ends end is fixed respectively
It is connected with angle cleat (3), is opened on the angle cleat (3) there are two bolt hole (4)；Two neighboring Tunnel Second Lining arch
It is fitted with bolt and nut (5) in the bolt hole (4) of the angle cleat (3) of unit, all Tunnel Second Lining arch units
Successively arc-shaped arch is connected into sequentially through bolt and nut (5)；It is connected with if being welded and fixed on the outside of the arc-shaped arch
Dry outer layer circumferential direction main reinforcement (6), the arc-shaped arch inside, which is welded and fixed, is connected with several internal layer circumferential direction main reinforcements (7)；If
A dry arc-shaped arch parallel interval constitutes arch component side by side, if passing through on the outside of all arc-shaped arches of the arch component
A dry outer layer genesis analysis muscle (8) is connected and fixed, and all outer layer genesis analysis muscle (8) respectively correspond and each outer layer circumferential direction main reinforcement
(6) it is connected and fixed；It is solid by the connection of several internal layer genesis analysis muscle (9) on the inside of all arc-shaped arches of the arch component
Fixed, all internal layer genesis analysis muscle (9) respectively correspond to be connected and fixed with each internal layer circumferential direction main reinforcement (7)；The outer layer longitudinally divides
Cloth muscle (8) is arranged in a one-to-one correspondence with internal layer genesis analysis muscle (9), and the outer layer genesis analysis muscle (8) and corresponding internal layer are vertical
To being fixedly connected with lacing wire (10) between distributing reinforcement (9)；The arch unit main reinforcement (1) is by HRB335 bar material or HRB400
Bar material manufacture, the diameter of arch unit main reinforcement (1) are 20mm~28mm；The stirrup (2) by HRB335 bar material or
The manufacture of HRB400 bar material, the diameter of stirrup (2) are 10mm~14mm；The angle cleat (3) is manufactured by Q235 Steel material.
2. arch frame structure described in accordance with the claim 1, it is characterised in that: the quantity of the arch unit main reinforcement (1) is three,
Three arch unit main reinforcements (1) collectively form the arch unit framework that a section is equilateral triangle.
3. arch frame structure described in accordance with the claim 1, it is characterised in that: the quantity of the arch unit main reinforcement (1) is four,
Four arch unit main reinforcements (1) collectively form the arch unit framework that a section is square, two neighboring arch unit master
The clear spacing of muscle (1) is 350mm.
4. a kind of erection method by arch frame structure as claimed in claim 2, it is characterised in that: its method and step is as follows:
A, it prepares Tunnel Second Lining arch unit: the arch unit main reinforcement (1) of three equal lengths is arranged parallel altogether
With constituting the arch unit framework that section is equilateral triangle, the arch unit framework along arch unit framework length
Degree direction uniform intervals are fixedly connected with several stirrups (2), and the arch unit framework is connected and fixed by each stirrup (2)
At arch unit skeleton；It is fixedly connected with angle cleat (3), each angle cleat respectively in arch unit skeleton both ends end
(3) it is provided with two bolts hole (4) up and down on, a Tunnel Second Lining arch unit can be obtained；
B, it sets up arc-shaped arch: several Tunnel Second Lining arch units is sequentially connected and is set up arc-shaped arch,
Bolt and nut (5) are fitted in the bolt hole (4) of the angle cleat (3) of two neighboring Tunnel Second Lining arch unit,
It is fixed by the bolt and nut (5) in angle cleat (3) bolt hole (4) between two neighboring Tunnel Second Lining arch unit
Connection, all Tunnel Second Lining arch units successively connect into arc-shaped arch, the circle sequentially through bolt and nut (5)
The circular shape of row's arc bow members and the circular shape of tunnel vault match；
C, several arc-shaped arches are successively evenly arranged along length of tunnel direction on tunnel vault and constitute vault skeleton,
It is welded and fixed on the outside of each arc-shaped arch and is connected with several outer layer circumferential direction main reinforcements (6), welding on the inside of each arc-shaped arch
It is fixedly connected with several internal layer circumferential direction main reinforcements (7)；It is fixed on the outside of the vault skeleton along length of tunnel direction uniform parallel
There are several outer layer genesis analysis muscle (8), each outer layer genesis analysis muscle (8) is successively corresponding on the outside of all arc-shaped arches to weld
Connect fixation；Several internal layer circumferential direction main reinforcements (7) are fixed with along length of tunnel direction uniform parallel on the inside of the vault skeleton, often
A internal layer circumferential direction main reinforcement (7) is successively corresponding on the inside of all arc-shaped arches to be welded and fixed；
D, the outer layer genesis analysis muscle (8) in the vault skeleton is arranged in a one-to-one correspondence with internal layer genesis analysis muscle (9), described outer
Lacing wire (10) are fixedly connected between layer genesis analysis muscle (8) and corresponding internal layer genesis analysis muscle (9).
5. a kind of erection method by arch frame structure as claimed in claim 3, it is characterised in that: its method and step is as follows:
A, it prepares Tunnel Second Lining arch unit: the arch unit main reinforcement (1) of four equal lengths is arranged parallel altogether
With constituting the arch unit framework that is square of a section, the arch unit framework along arch unit framework length side
Several stirrups (2) are fixedly connected with to uniform intervals, the arch unit framework is connected and fixed arching by each stirrup (2)
Frame unit skeleton；It is fixedly connected with respectively angle cleat (3) in arch unit skeleton both ends end, on each angle cleat (3)
Two bolts hole (4) up and down are provided with, a Tunnel Second Lining arch unit can be obtained；
B, it sets up arc-shaped arch: several Tunnel Second Lining arch units is sequentially connected and is set up arc-shaped arch,
Bolt and nut (5) are fitted in the bolt hole (4) of the angle cleat (3) of two neighboring Tunnel Second Lining arch unit,
It is fixed by the bolt and nut (5) in angle cleat (3) bolt hole (4) between two neighboring Tunnel Second Lining arch unit
Connection, all Tunnel Second Lining arch units successively connect into arc-shaped arch, the circle sequentially through bolt and nut (5)
The circular shape of row's arc bow members and the circular shape of tunnel vault match；
C, several arc-shaped arches are successively evenly arranged along length of tunnel direction on tunnel vault and constitute vault skeleton,
It is welded and fixed on the outside of each arc-shaped arch and is connected with several outer layer circumferential direction main reinforcements (6), welding on the inside of each arc-shaped arch
It is fixedly connected with several internal layer circumferential direction main reinforcements (7)；It is fixed on the outside of the vault skeleton along length of tunnel direction uniform parallel
There are several outer layer genesis analysis muscle (8), each outer layer genesis analysis muscle (8) is successively corresponding on the outside of all arc-shaped arches to weld
Connect fixation；Several internal layer circumferential direction main reinforcements (7) are fixed with along length of tunnel direction uniform parallel on the inside of the vault skeleton, often
A internal layer circumferential direction main reinforcement (7) is successively corresponding on the inside of all arc-shaped arches to be welded and fixed；
D, the outer layer genesis analysis muscle (8) in the vault skeleton is arranged in a one-to-one correspondence with internal layer genesis analysis muscle (9), described outer
Lacing wire (10) are fixedly connected between layer genesis analysis muscle (8) and corresponding internal layer genesis analysis muscle (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710090961.XA CN106761838B (en) | 2017-02-20 | 2017-02-20 | Tunnel Second Lining arch unit and its arch frame structure and erection method constituted |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710090961.XA CN106761838B (en) | 2017-02-20 | 2017-02-20 | Tunnel Second Lining arch unit and its arch frame structure and erection method constituted |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106761838A CN106761838A (en) | 2017-05-31 |
| CN106761838B true CN106761838B (en) | 2019-05-21 |
Family
ID=58957805
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710090961.XA Active CN106761838B (en) | 2017-02-20 | 2017-02-20 | Tunnel Second Lining arch unit and its arch frame structure and erection method constituted |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106761838B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT201800010509A1 (en) * | 2018-11-22 | 2020-05-22 | Maccaferri Off Spa | Support rib of an excavation and method for the construction of a support structure within an excavation |
| CN109915176B (en) * | 2019-03-29 | 2020-11-20 | 中国铁建重工集团股份有限公司 | Tunnel support arch center manufacturing system and method |
| CN110700856B (en) * | 2019-09-10 | 2022-02-25 | 甘肃路桥建设集团有限公司 | Tunnel secondary lining steel bar protective layer control construction method |
| CN113565539B (en) * | 2021-07-29 | 2023-12-15 | 中铁隧道集团一处有限公司 | Construction method for preventing primary support side rebound of tunnel cantilever type cast-in-situ side wall |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5037453B2 (en) * | 2007-12-19 | 2012-09-26 | 佐藤工業株式会社 | Lined concrete structure and its construction method |
| CN104061004B (en) * | 2014-07-10 | 2016-07-13 | 招商局重庆交通科研设计院有限公司 | Tunnel Second Lining bar construction |
| CN104632253B (en) * | 2014-12-31 | 2017-01-25 | 中铁大桥局集团第四工程有限公司 | Positioning device for tunnel lining construction and construction method |
| CN204941577U (en) * | 2015-06-15 | 2016-01-06 | 山西省交通科学研究院 | A kind of Highway Tunnel in Loess preliminary bracing bow member unit and the steelframe formed |
| CN204941565U (en) * | 2015-07-08 | 2016-01-06 | 山西省交通科学研究院 | A kind of novel tunnel inverted arch structure |
| CN205778933U (en) * | 2016-05-23 | 2016-12-07 | 山西省交通科学研究院 | A kind of Tunnel shaped steel arch attachment means |
| CN206503605U (en) * | 2017-02-20 | 2017-09-19 | 长安大学 | Tunnel Second Lining bow member unit and its arch frame structure constituted |
-
2017
- 2017-02-20 CN CN201710090961.XA patent/CN106761838B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN106761838A (en) | 2017-05-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106761838B (en) | Tunnel Second Lining arch unit and its arch frame structure and erection method constituted | |
| CN206503605U (en) | Tunnel Second Lining bow member unit and its arch frame structure constituted | |
| CN205777098U (en) | A kind of detachable assembling type concrete-filled circular steel tube column | |
| CN210798990U (en) | Corrugated steel lining combined member for tunnel | |
| CN104328846B (en) | The exposed composite plate shear wall for fastening reinforcing bar and connection method | |
| CN105756365B (en) | A kind of method of rapid reinforcement beams of concrete | |
| CN104805775B (en) | The construction method of recovery technique after the shake of a kind of RC bridge pier | |
| CN103225285A (en) | Steel membrane concrete faced rockfill dam | |
| CN111828053A (en) | Steel pipe concrete and sprayed concrete rigid combined structure tunnel supporting system and construction method | |
| CN105178983A (en) | Circumferential prestress strengthening tunnel segment and manufacturing method | |
| CN106760050A (en) | The attachment structure and through processing method of shear wall and after-pouring concrete frame beam | |
| CN102776829A (en) | Steel pipe concrete combined truss bridge | |
| CN108330829A (en) | A kind of steel plate and concrete composite floorings using U-bolt shear connector | |
| CN104652430A (en) | Composite reinforcement partially prestressed concrete solid square pile and manufacturing method thereof | |
| CN206438391U (en) | A kind of track engineering bridge expansion joint installation | |
| CN206903061U (en) | Variable cross-section structure of stiff beam | |
| CN209261310U (en) | The concrete prefabricated assembly combined storehouse of Contiuum type | |
| CN107237453A (en) | A kind of concrete filled steel tube coupled column | |
| CN202360108U (en) | Compound supporting structure | |
| CN204920982U (en) | Hoop prestressed reinforcement tunnel section of jurisdiction | |
| CN206987197U (en) | A kind of concrete filled steel tube coupled column | |
| CN201103195Y (en) | Reinforcing mesh for concrete | |
| CN205677280U (en) | A kind of strenthening member of impaired armored concrete vertical member | |
| WO2002012657A1 (en) | Construction module for producing bridges, buildings and towers, for example for wind power plants | |
| CN209163422U (en) | High-strength bolt diagonal pulling fixed type overhanging scaffold |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |