CN205823305U - A kind of mounting structure reinforced for large section tunnel arch wall lining cutting reinforcing bar location - Google Patents
A kind of mounting structure reinforced for large section tunnel arch wall lining cutting reinforcing bar location Download PDFInfo
- Publication number
- CN205823305U CN205823305U CN201620573642.5U CN201620573642U CN205823305U CN 205823305 U CN205823305 U CN 205823305U CN 201620573642 U CN201620573642 U CN 201620573642U CN 205823305 U CN205823305 U CN 205823305U
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- Prior art keywords
- lining cutting
- reinforcing bar
- mounting structure
- muscle
- large section
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- 230000003014 reinforcing effect Effects 0.000 title claims abstract description 60
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 70
- 239000010959 steel Substances 0.000 claims abstract description 70
- 210000003205 muscle Anatomy 0.000 claims abstract description 65
- 230000002787 reinforcement Effects 0.000 claims abstract description 35
- 239000002689 soil Substances 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 9
- 238000003466 welding Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 7
- 238000010276 construction Methods 0.000 description 3
- 238000011900 installation process Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000015271 coagulation Effects 0.000 description 2
- 238000005345 coagulation Methods 0.000 description 2
- 240000002853 Nelumbo nucifera Species 0.000 description 1
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 1
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Lining And Supports For Tunnels (AREA)
Abstract
The utility model discloses a kind of mounting structure reinforced for large section tunnel arch wall lining cutting reinforcing bar location.In inverted arch concrete (11) both sides pre-buried lower margin connector (9), high-strength bolt (13) is embedded in inverted arch concrete (11) together with lower margin connecting plate (10) simultaneously.I-steel skeleton (3) is assembled section by section by steelframe connecting plate (4) high-strength bolt (13) high-strength nut (14), and be effectively connected with lower margin connector (9) and become an entirety.The longitudinal φ 42 steel pipe (5) of I-steel skeleton (3) outer arc side welding, both are integrally forming, form the effect that lining cutting outer reinforcement is played an entirety top, drags and reinforce by stress simultaneously of a big skeleton, again by hooking the interconnection function of muscle (6), lining cutting internal layer reinforcing bar is played the effect that an entirety is hung, hung, draws, and I-steel skeleton (3) also acts the effect of " reinforcement reinforcement " in lining concrete.
Description
Technical field
This utility model relates to a kind of mounting structure reinforced for large section tunnel arch wall lining cutting reinforcing bar location.
Background technology
Along with the fast development of railway, highway, underground engineering etc., meanwhile the occurring in both at home and abroad of large section tunnel
Also get more and more.It is found that in recent years large section tunnel construction engineering in, in order to ensure that large section lining cutting is tied
The safety and stability of structure, lining cutting reinforcing bar is typically chosen the biggest, and the gap ratio of lining cutting reinforcing bar is closeer.General lining cutting
Chassis a length of 9.2m, 10.2m, 12.2m(0.2m are soft lap segment), but be used in the tunnel of large section, the most then select
9.2m or 10.2m.With excavated section as 363.5m3, span 26.48m height 13.43m(from fill face to spring of arch), lining cutting
Main muscle φ 25 spacing is 15cm, and as a example by distributing reinforcement φ 16 spacing 25cm, every linear meter(lin.m.) reinforcing bar weight is up to 5.478t, lining trolley with
9.2m(0.2m is soft lap segment) consider, one group of lining cutting reinforcing bar just weighs 5.478 × 9=49.3t, adds general large section
It is relatively big that tunnel-liner is designed as " flat " i.e. span, and the most relatively low, therefore arch load is the most big, at lining cutting reinforcing bar
After colligation completes, two kinds of problems easily occur:
1. after removing reinforcing bar binding chassis dismounting reinforcing bar support point, owing to the deadweight of Arch lining reinforcing bar is excessive, it is understood that there may be
Collapse after the deformation of arch reinforcing bar, unnecessary potential safety hazard, waste of material, the expense such as do over again can be caused；
2. after evading the first probability, it can be seen that owing to arch reinforcing bar was conducted oneself with dignity during lining trolley is in place
Greatly, can there is significantly sinkage in lining cutting reinforcing bar, is likely to result in the unprotected layer of reinforcing bar (leakage muscle phenomenon), even due to reinforcing bar
Sinking lining trolley cannot be increased to design section, causes hidden danger of quality.
Comprehensive case above, its essence is that the deadweight of lining cutting reinforcing bar is excessive, adds that large section is designed as " flat " i.e.
Span is relatively big, the most relatively low, the force structure that therefore arch reinforcing bar is unique, adds that reinforcing bar load is relatively big, is likely to result in
Arch reinforcing bar collapses, thickness of protection tier inadequate, leakage muscle, even lining trolley cannot be increased to the situations such as design section.
In order to prevent the appearance of the problems referred to above, key challenge is how to solve lining cutting steel reinforcing and location, just will not lead
Cause reinforcing bar because of from great and significantly sink.Conventional thinking is to install associated components on a just concrete surface, can be to lining cutting reinforcing bar
Play the effect hung, hang, draw, but owing to splash guard separates just propping up concrete with lining cutting reinforcing bar, if installing hanging component gesture
(so also forbidding) will be destroyed by splash guard simultaneously, and cause the inefficacy of whole waterproof system.
Utility model content
The technical problems to be solved in the utility model is: provide one to position for large section tunnel arch wall lining cutting reinforcing bar
The mounting structure reinforced, to overcome Ultra-Long Spans bore tunnel, owing to Arch lining reinforcing bar load is excessive, the arch being likely to result in
Reinforcing bar collapses, thickness of protection tier inadequate, leakage muscle, even lining trolley cannot be increased to the deficiencies such as design section.
This utility model is by the following technical solutions: at inverted arch concrete both sides pre-buried lower margin connector, I-steel skeleton
It is connected with lower margin connector and becomes an entirety；The main muscle of lining cutting reinforcing bar outer layer and outer layer distributing reinforcement colligation, the main muscle of lining cutting internal layer
With internal layer distributing reinforcement colligation, hook muscle and be connected to the lining cutting main muscle of reinforcing bar outer layer, outer layer distributing reinforcement and the main muscle of lining cutting internal layer, internal layer distribution
Between muscle and muscle main with ectonexine and distributing reinforcement colligation；At I-steel skeleton outer arc side longitudinal measure steel pipe, steel pipe and I-steel
Skeleton forms an entirety.
Hook muscle by splash guard one end and the lining cutting main muscle of reinforcing bar outer layer, outer layer distributing reinforcement colligation, the other end of hook muscle and lining cutting
The main muscle of internal layer, internal layer distributing reinforcement colligation are together.
I-steel skeleton is the most assembled by steelframe connecting plate, high-strength bolt and high-strength nut.Four high-strength bolts under
It is upward through bolt hole and is embedded in inverted arch concrete both sides together with lower margin connector.Steel pipe is effectively formed with I-steel skeleton
One entirety, the effect together lining cutting outer reinforcement is played a top, holding in the palm and reinforcing.
Lower margin connecting plate is welded into one by the steel angle stiffening rib and lower margin connector.
By hooking the interconnection function of muscle, make I-steel skeleton and longitudinal steel pipe that whole outer layer lining cutting reinforcing bar is played one
Top, the effect dragging and reinforce, play the effect that an entirety is hung, hung, draws simultaneously to internal layer reinforcing bar, and ectonexine reinforcing bar, vertical
One is effectively become to steel pipe, I-steel skeleton.I-steel skeleton also serves the effect of reinforcement reinforcement to liner structure.
The transmission process of I-steel skeletal support power is: first, I-steel skeleton withstands steel pipe；Second, outside steel pipe withstands
The main muscle of layer；3rd, the main top rib of outer layer lives outer layer distributing reinforcement, and now the main muscle of outer layer and outer layer distributing reinforcement are not sinking；4th, outer layer
Main muscle and outer layer distributing reinforcement, hold the main muscle of internal layer and internal layer distributing reinforcement by hooking muscle, makes the main muscle of internal layer and the internal layer distribution of arch
Muscle does not sinks.This addresses the problem, at Ultra-Long Spans bore tunnel, owing to Arch lining reinforcing bar load is excessive, be likely to result in
Arch reinforcing bar collapses, thickness of protection tier inadequate, leakage muscle, even lining trolley cannot be increased to not enough the asking such as design section
Topic.
Accompanying drawing explanation
Fig. 1 is loopful sectional drawing of the present utility model；
Fig. 2 is that inverted arch of the present utility model is connected detail drawing with abutment wall；
Fig. 3 is arch of the present utility model section detail drawing；
Fig. 4 is arch of the present utility model longitdinal cross-section diagram；
Fig. 5 is connecting plate detail drawing of the present utility model；
Fig. 6 is lower margin connector detail drawing of the present utility model；
Fig. 7 is I-I profile of the present utility model.
Detailed description of the invention
Embodiment of the present utility model: on inverted arch concrete 11 both sides pre-buried lower margin connector 9, I-steel skeleton 3 and ground
Lower margin connecting plate 10 on foot connector 9, by high-strength bolt 13, high-strength nut 14 is fastenedly connected and is integrally forming；Lining cutting steel
The main muscle of muscle outer layer 2 and outer layer distributing reinforcement 8 colligation, the main muscle of lining cutting internal layer 7 and internal layer distributing reinforcement 17 colligation, hook muscle 6 and be connected to lining cutting
Two ends colligation between the main muscle of reinforcing bar outer layer 2, outer layer distributing reinforcement 8 and the main muscle of lining cutting internal layer 7, internal layer distributing reinforcement 17；At I-steel
Skeleton 3 outer arc side longitudinal measure steel pipe 5, steel pipe 5 and I-steel skeleton 3 form an entirety.
I-steel skeleton 3 is the most assembled by steelframe connecting plate 4, high-strength bolt 13 and high-strength nut 14.
Four high-strength bolts 13, from bottom to top through bolt hole 15, and are embedded in inverted arch coagulation together with lower margin connector 9
Soil 11 both sides.
The end face of lower margin connecting plate 10 is concordant with inverted arch concrete 11, four high-strength bolts 13, should not be by inverted arch coagulation
Soil 11 pollutes.
Steel pipe 5 uses φ 42mm.
Steelframe connecting plate 4 and I-steel skeleton 3 are welded into one by the steel angle stiffening rib 16.
Four bolts hole 15 it are reserved with on steelframe connecting plate 4.
Often the two ends of joint I-steel skeleton 3 are respectively provided with steelframe connecting plate 4.
Installation process of the present utility model:
Step one course of processing: calculate the gross weight of one group of lining cutting reinforcing bar in advance, calculates according to gross weight inspection and needs selection many
The I-steel of big model.Inner in processing factory (field), process I-steel skeleton 3 according to the design profile line of lining cutting reinforcing bar outer arc.For
Facilitating site operation and the assembly, I-steel skeleton to be made up of some joints, often joint two ends are respectively provided with the connection with bolt hole 15
Steel plate 4, junction steel plate 4 is welded into one, the connection between each joint skeleton by the steel angle stiffening rib 16 and I-steel skeleton 3
Using high-strength bolt 13, high-strength nut 14 is fastenedly connected.
The pre-buried process of step 2 lower margin connector: after tunnel arch wall excavation supporting completes, enters inverted arch concrete 11
Construction, should shift to an earlier date pre-buried lower margin connector 9, and longitudinal pitch is typically pressed 3m and controlled, should be by measuring the good absolute altitude of point position control time pre-buried
And plan-position.
Step 3 splash guard hangs process: complete after inverted arch concrete 11 fill concrete 12 pours, concrete to be filled
After reaching some strength, splash guard in place hangs chassis (this chassis shares) with reinforcing bar binding chassis, completes hanging of splash guard 1
Construction.
Step 4 colligation outer layer lining cutting reinforcing bar process: after splash guard 1 has hung, survey crew uses total powerstation accurate
Release the main muscle of internal layer 7 and the position of the main muscle of outer layer 2.Start the colligation main muscle of lining cutting outer layer 2, outer layer distribution bar 8.
Step 5 I-steel skeleton installation process: the main muscle of lining cutting outer layer 2, after outer layer distribution bar 8 completes colligation.By work
After word steel skeleton 3 is transported to job site, cleaning lower margin connecting plate 10 and high-strength bolt thereon 13, then by a joint I-steel skeleton
3, the bolt hole 15 on one end connecting plate 4 penetrates in the high-strength bolt 13 on lower margin connecting plate 10, and by four high-strength nuts
13 fastenings, complete the assembled work of first segment I-steel skeleton and lower margin connector 9.Steelframe is passed through in the assembly of second section I-steel
The connecting plate 4 at two ends, uses 4 high-strength bolt 13 high-strength nuts 14 to be fastenedly connected, the most successively from lateral symmetry
Close up to arch, complete the installation of whole I-steel skeletons 3 in one group of lining cutting.
Step 6 φ 42 penstock installation process: after completing the assembly of whole I-steel skeleton 3, according to the spacing of hoop about 2m
φ 42 steel pipe 5 is welded to I-steel skeleton 3 outer arc side, between φ 42 steel pipe 5 longitudinal length longitudinal direction not less than I-steel skeleton 3
Away from.
Step 7 colligation lining cutting internal layer reinforcing bar process: after φ 42 steel pipe 5 has welded, starts the colligation main muscle of lining cutting internal layer
7, internal layer distribution bar 17.
Step 8 colligation hooks muscle process: treat the main muscle of lining cutting internal layer 7, and after internal layer distribution bar 17 colligation completes, colligation hooks muscle
6, link together by hooking 6 main muscle of outer layer 2 of muscle and outer layer distributing reinforcement 8 muscle main with internal layer 7 and internal layer distributing reinforcement 17, now,
I-steel skeleton 3, φ 42 steel pipe 5, by the main muscle of outer layer 2, outer layer distributing reinforcement 8 and hook muscle 6, muscle 7 main to lining cutting internal layer, internal layer divides
Cloth muscle 17 plays the effect that an entirety is hung, hung, draws.
The transmission process of I-steel skeleton 3 support force is: first, I-steel skeleton 3 withstands steel pipe 5；Second, steel pipe 5 pushes up
Live the main muscle of outer layer 2；3rd, the main muscle of outer layer 2 withstands outer layer distributing reinforcement 8, and now the main muscle of outer layer 2 and outer layer distributing reinforcement 8 are not sinking；
4th, the main muscle of outer layer 2 and outer layer distributing reinforcement 8, hold the main muscle of internal layer 7 and internal layer distributing reinforcement 17 by hooking muscle 6, make the internal layer of arch
Main muscle 7 and internal layer distributing reinforcement 17 do not sink.This addresses the problem, at Ultra-Long Spans bore tunnel, due to Arch lining reinforcing bar lotus
Carrying excessive, the arch reinforcing bar being likely to result in collapses, thickness of protection tier inadequate, leakage muscle, even lining trolley cannot be increased to
The problem that design section etc. are not enough.
Step 9 concreting process: after hook muscle 6 colligation completes, remove splash guard and hang chassis (this chassis and reinforcing bar
Colligation chassis shares), then lining trolley in place, perform secondary lining, i.e. complete domain lining concrete pours operation.
Claims (10)
1. the mounting structure reinforced for large section tunnel arch wall lining cutting reinforcing bar location, it is characterised in that: mix at inverted arch
Solidifying soil (11) both sides pre-buried lower margin connector (9), I-steel skeleton (3) is connected with lower margin connector (9) and becomes an entirety；
The main muscle of lining cutting reinforcing bar outer layer (2) and outer layer distributing reinforcement (8) colligation, the main muscle of lining cutting internal layer (7) and internal layer distributing reinforcement (17) colligation, hook
One end of muscle (6) and the main muscle of lining cutting reinforcing bar outer layer (2), outer layer distributing reinforcement (8) colligation, hook the other end and the lining cutting internal layer of muscle (6)
Main muscle (7), internal layer distributing reinforcement (17) colligation；In I-steel skeleton (3) outer arc side longitudinal measure steel pipe (5), steel pipe (5) and I-shaped
Steel skeleton (3) forms an entirety.
A kind of mounting structure reinforced for large section tunnel arch wall lining cutting reinforcing bar location the most according to claim 1,
It is characterized in that: hook muscle (6) by splash guard (1) one end and the main muscle of lining cutting reinforcing bar outer layer (2), outer layer distributing reinforcement (8) colligation, hook muscle
(6) together with other end muscle main with lining cutting internal layer (7), internal layer distributing reinforcement (17) colligation.
A kind of mounting structure reinforced for large section tunnel arch wall lining cutting reinforcing bar location the most according to claim 1,
It is characterized in that: I-steel skeleton (3) is assembled section by section by steelframe connecting plate (4), high-strength bolt (13) and high-strength nut (14).
A kind of mounting structure reinforced for large section tunnel arch wall lining cutting reinforcing bar location the most according to claim 1,
It is characterized in that: lower margin connecting plate (10) is welded into one by the steel angle stiffening rib (16) and lower margin connector (9).
A kind of mounting structure reinforced for large section tunnel arch wall lining cutting reinforcing bar location the most according to claim 4,
It is characterized in that: four high-strength bolts (13), from bottom to top through bolt hole (15) and pre-buried together with lower margin connector (9)
In inverted arch concrete (11) both sides.
A kind of mounting structure reinforced for large section tunnel arch wall lining cutting reinforcing bar location the most according to claim 4,
It is characterized in that: the end face of lower margin connecting plate (10) is concordant with inverted arch concrete (11) face.
A kind of mounting structure reinforced for large section tunnel arch wall lining cutting reinforcing bar location the most according to claim 1,
It is characterized in that: steel pipe (5) uses φ 42mm.
A kind of mounting structure reinforced for large section tunnel arch wall lining cutting reinforcing bar location the most according to claim 1,
It is characterized in that: steelframe connecting plate (4) and I-steel skeleton (3) are welded into one by the steel angle stiffening rib (16).
A kind of mounting structure reinforced for large section tunnel arch wall lining cutting reinforcing bar location the most according to claim 1,
It is characterized in that: on steelframe connecting plate (4), be reserved with four bolts hole (15).
A kind of mounting structure reinforced for large section tunnel arch wall lining cutting reinforcing bar location the most according to claim 1,
It is characterized in that: often the two ends of joint I-steel skeleton (3) are respectively provided with steelframe connecting plate (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620573642.5U CN205823305U (en) | 2016-06-13 | 2016-06-13 | A kind of mounting structure reinforced for large section tunnel arch wall lining cutting reinforcing bar location |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620573642.5U CN205823305U (en) | 2016-06-13 | 2016-06-13 | A kind of mounting structure reinforced for large section tunnel arch wall lining cutting reinforcing bar location |
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| Publication Number | Publication Date |
|---|---|
| CN205823305U true CN205823305U (en) | 2016-12-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201620573642.5U Expired - Fee Related CN205823305U (en) | 2016-06-13 | 2016-06-13 | A kind of mounting structure reinforced for large section tunnel arch wall lining cutting reinforcing bar location |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105909280A (en) * | 2016-06-13 | 2016-08-31 | 中铁五局集团有限公司 | Installing structure for super-large section tunnel arch wall lining rebar positioning and reinforcing |
| CN108729931A (en) * | 2018-05-23 | 2018-11-02 | 新疆北方建设集团有限公司 | A kind of tunnel inverted arch repairs secondary lining ruggedized construction and construction method |
| CN108842751A (en) * | 2018-08-07 | 2018-11-20 | 中铁十五局集团有限公司 | tunnel foundation reinforcing device |
| CN109083660A (en) * | 2018-08-22 | 2018-12-25 | 山东建筑大学 | Soft Rock Roadway (tunnel) road pucking based on armored concrete bottom beam administers supporting construction and method |
| CN111456764A (en) * | 2020-05-20 | 2020-07-28 | 中铁隧道集团一处有限公司 | Heavy lining trolley with pushing sliding type disc buckle support and lining formwork construction method |
-
2016
- 2016-06-13 CN CN201620573642.5U patent/CN205823305U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105909280A (en) * | 2016-06-13 | 2016-08-31 | 中铁五局集团有限公司 | Installing structure for super-large section tunnel arch wall lining rebar positioning and reinforcing |
| CN108729931A (en) * | 2018-05-23 | 2018-11-02 | 新疆北方建设集团有限公司 | A kind of tunnel inverted arch repairs secondary lining ruggedized construction and construction method |
| CN108729931B (en) * | 2018-05-23 | 2023-07-18 | 新疆北方建设集团有限公司 | Tunnel inverted arch repairing secondary lining reinforcing structure and construction method |
| CN108842751A (en) * | 2018-08-07 | 2018-11-20 | 中铁十五局集团有限公司 | tunnel foundation reinforcing device |
| CN109083660A (en) * | 2018-08-22 | 2018-12-25 | 山东建筑大学 | Soft Rock Roadway (tunnel) road pucking based on armored concrete bottom beam administers supporting construction and method |
| CN111456764A (en) * | 2020-05-20 | 2020-07-28 | 中铁隧道集团一处有限公司 | Heavy lining trolley with pushing sliding type disc buckle support and lining formwork construction method |
| CN111456764B (en) * | 2020-05-20 | 2021-06-25 | 中铁隧道集团一处有限公司 | Heavy lining trolley with pushing sliding type disc buckle support and lining formwork construction method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161221 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |