CN108222972A - Tunnel Second Lining Construction double bolloon formula termination device - Google Patents
Tunnel Second Lining Construction double bolloon formula termination device Download PDFInfo
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- CN108222972A CN108222972A CN201810197157.6A CN201810197157A CN108222972A CN 108222972 A CN108222972 A CN 108222972A CN 201810197157 A CN201810197157 A CN 201810197157A CN 108222972 A CN108222972 A CN 108222972A
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- air bag
- tunnel
- cylinder
- countercheck
- supporting rod
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- 238000010276 construction Methods 0.000 title claims abstract description 45
- 239000000463 material Substances 0.000 claims abstract description 15
- 230000004323 axial length Effects 0.000 claims abstract description 11
- 208000005168 Intussusception Diseases 0.000 claims abstract description 7
- 210000004712 air sac Anatomy 0.000 claims abstract description 3
- 239000013013 elastic material Substances 0.000 claims abstract description 3
- 238000009987 spinning Methods 0.000 claims description 3
- 238000007789 sealing Methods 0.000 abstract description 60
- 230000000694 effects Effects 0.000 abstract description 11
- 238000005520 cutting process Methods 0.000 description 36
- 229910000831 Steel Inorganic materials 0.000 description 27
- 239000010959 steel Substances 0.000 description 27
- 230000002787 reinforcement Effects 0.000 description 19
- 239000011435 rock Substances 0.000 description 18
- 239000004567 concrete Substances 0.000 description 9
- 238000005452 bending Methods 0.000 description 7
- 238000006073 displacement reaction Methods 0.000 description 4
- 238000005266 casting Methods 0.000 description 3
- 230000001771 impaired effect Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 230000001788 irregular Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000000465 moulding Methods 0.000 description 2
- 210000003205 muscle Anatomy 0.000 description 2
- 230000007115 recruitment Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 238000009412 basement excavation Methods 0.000 description 1
- 239000002775 capsule Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 230000005641 tunneling Effects 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
-
- 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
- E21D11/14—Lining predominantly with metal
- E21D11/18—Arch members ; Network made of arch members ; Ring elements; Polygon elements; Polygon elements inside arches
-
- 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
- E21D11/38—Waterproofing; Heat insulating; Soundproofing; Electric insulating
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Structural Engineering (AREA)
- Architecture (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
Tunnel Second Lining Construction double bolloon formula termination device, it includes extending cylinder, several supporting rods, two annular air bags, several countercheck rods, supporting rod, the quantity of countercheck rod is identical, the length of supporting rod is not less than the axial length for extending cylinder, supporting rod is axially disposed at its inner wall and circumferential spaced along extend cylinder, the axis direction of two air bags is set as front-rear direction, two the front and rear of air bag are more than the axial length for extending cylinder to of same size and width, the material of each air bag is elastic material, the front side of each air bag is equipped with gas nozzle, intussusception connects inside and outside two air bags, the Air sac cover of inside is on extension cylinder, the front end of each supporting rod connects with a countercheck rod on the inside of extension cylinder axis region, frontside contacts of each countercheck rod far from the outside for extending cylinder axis region and two air bags.The present apparatus is fitted on trolley, can effectively improve construction efficiency so that the sealing end effect of tunnel Second Lining Construction is preferable.
Description
Technical field
The present invention relates to construction of tunnel apparatus field, more particularly to a kind of tunnel Second Lining Construction double bolloon formula
Termination device.
Background technology
At present, tunnel builds generally use New Austrian Tunneling Method in hydraulic engineering, after the completion of tunnel excavation, according to surrounding rock category
And barrel pressure-bearing situation, single shell lining or combined type lining cutting must be carried out.Combined type lining cutting (is commonly called as just in original single shell lining
Lining, after tying up at country rock and squeeze into anchor pole, hanging up bar-mat reinforcement, one layer concrete of fill-before-fire) inside circumferentially pour one layer of steel again
Reinforced concrete (i.e. secondary lining).
It is general for the Second Lining Construction of wholecircle section, pressurized tunnel with the continuous development of China's equipment manufacture
Method is built using whole-circle needle beam type telescoping steel form (being referred to as trolley below) mould, the outer framework of trolley circumferential direction is built including circular mould
Cylinder (being enclosed after bending using the steel plate of 8-10mm) is arranged on mould and builds the reinforced frame of an inner wall (using channel steel, work
Word steel etc. is formed after connection).
To prevent country rock from seeping water, design is using annular and flat belt-like section at the construction joint of adjacent two moulds Second Lining Construction
The sealing collar in face is closed, and to prevent country rock from seeping water, buried rubber fastening band encloses during sealing collar uses, waterstop
Width is 230-500mm.
Implementing tunnel Second Lining Construction using trolley, there is following defects：It can not be quickly and easily to each lining cutting
The front end of section is blocked, and spillage problem easily occurs in when closure, construction efficiency is relatively low, recruitment number is more, circulation material consumption greatly,
Water-stagnating effect is also poor.
Invention content
The technical problems to be solved by the invention are to provide a kind of tunnel Second Lining Construction double bolloon formula termination device, this
Device is fitted on trolley, can effectively improve construction efficiency so that the sealing end effect of tunnel Second Lining Construction is preferable.
In order to solve the above technical problems, the present invention provides a kind of tunnel Second Lining Construction double bolloon formula termination device,
It includes extending cylinder, several supporting rods, two annular air bags, several countercheck rods, and supporting rod, the quantity of countercheck rod are identical,
The length of supporting rod is axially disposed at its inner wall and circumferential phase not less than the axial length for extending cylinder, supporting rod along extension cylinder
Mutually interval, set the axis direction of two air bags as front-rear direction, two air bags it is front and rear to of same size and width more than prolonging
The axial length of long cylinder, the material of each air bag are elastic material, and the front side of each air bag is equipped with gas nozzle, inside and outside two air bags
Intussusception connects, and the Air sac cover of inside mounted in extending on cylinder, with a countercheck rod close to extension justify by the front end of each supporting rod
Connect on the inside of cylinder axis area, each countercheck rod connects on front side of outside and two air bags far from extension cylinder axis region
It touches.
For the sake of simple declaration problem, below to tunnel Second Lining Construction double bolloon formula termination device of the present invention
It is referred to as the present apparatus.
The present apparatus is fitted on trolley, i.e.,：The rear end of supporting rod and the front end vertical connection of the reinforced frame of trolley, branch
Strut length trend built with the mould of trolley cylinder axis direction it is consistent, extension cylinder be located at trolley front end and with trolley
Mould builds a coaxial line.Said structure design is simple, reasonable, and convenient for assembling, bonding strength is preferable；
The rear side circle body of sealing collar is fixed on to the front side of the steel reinforcement cage of lining cutting section and ensures that its position is accurate, sealing collar
Front side circle body (i.e. reserved circle body) although exposed except the front end of lining cutting section, its by non-bending it is round and smooth in a manner of be clamped in
(i.e. inside and outside intussusception connects successively for an air bag, the front side circle body of sealing collar, another air bag between two air bags filled with compressed air
Connect), countercheck rod to make the positioning of two air bags (set the side of sealing collar, steel reinforcement cage, air bag inside tunnel before, if
Determine after sealing collar, steel reinforcement cage, air bag be far from the side inside tunnel, sealing collar it is front and rear before width is more than each air bag
Backward width)；
Casting concrete in the space that both cylinder, country rock formed is built, and use two air bag conducts to the mould of trolley
The plugging part of overall structure form circumferentially blocks the front end of lining cutting section, the front side circle of two air bags and sealing collar
Body is in flexible contact, the front side circle body of sealing collar will not bending, impaired, the front side circle body of sealing collar is protected, realize it is quick,
Conveniently, steadily (compressed air in each air bag can reach certain pressure to sealing end, and appropriate deformation is suitable for lining cutting section
The irregular face of front end, this plugging structure is quite time saving, it is laborsaving, save artificial, conveniently, be not in that the spillage of concrete is asked
Topic, effectively increases construction efficiency, the consumption for reducing circulation material, and sealing end effect is preferable), the gasbag ektexine and tunnel in outside
Country rock be directed toward country rock closely against the outer end of, countercheck rod；
After the concreting molding of lining cutting section, the air in two air bags is bled off, both is made mixed with lining cutting section
The front end of solidifying soil layer mutually separates, then removes countercheck rod and two air bags (this causes the exposed sealing collar except lining cutting section front end
Front side circle body be not in deformation or displacement problem, damaging problem will not occur, properly settle present in the prior art
Relevant issues)；
Therefore, the present apparatus is fitted on trolley, can effectively improve construction efficiency so that the sealing end of tunnel Second Lining Construction
Effect is preferable.
The cross sectional shape and specification of the countercheck rod correspond to identical respectively；
The front end of each supporting rod is equipped with the casing for being used for inserting countercheck rod, cross sectional shape and the specification difference of several casings
Corresponding identical, spinning trip bolt on each casing, inside and the respective sleeve grafting of each countercheck rod, and each countercheck rod profit
It is positioned with the trip bolt in respective sleeve.
In this way, according to the concave-convex situation on country rock surface, each countercheck rod can move outside position along respective sleeve, with suitable
Different size and the country rock of shape are answered, fully meets the construction demand of tunnel Second Lining Construction.
The material of each air bag uses rubber material；
The axial cross section shape of the air bag of inside is rectangular, and the axial cross section shape of the air bag in outside is round or oval
Shape.
Using rubber material so that the wear-resistant strength of air bag is preferable, is not easy gas leakage；
The axially different cross sectional shape of interior outside air bag so that two air bags imitate the clamping of the front side circle body of sealing collar
It is fruit, preferable to the sealing end effect of the front end of corresponding lining cutting section, it is ensured that construction joint is directly suitable.
Description of the drawings
Fig. 1 is to implement the structure of tunnel Second Lining Construction and Construction State schematic diagram using the trolley of the installation present apparatus.
Fig. 2 is the partial view of Fig. 1.
Fig. 3 is the A-A enlarged cross-sectional views of Fig. 2.
Fig. 4 is the B of Fig. 3 to enlarged view.
Fig. 5 is to implement another structure of tunnel Second Lining Construction and Construction State signal using the trolley of the installation present apparatus
Figure.
The label of each component is as follows in attached drawing：
1a, extend cylinder；1b, supporting rod；1c, casing；1d, trip bolt；2nd, air bag；2a, gas nozzle；3rd, countercheck rod；4、
Air gauge；5th, compressor；T, the mould of trolley builds cylinder；J, the reinforced frame of trolley；D1, the first lining cutting section；L1, the first steel reinforcement cage；
D2, the second lining cutting section；L2, the second steel reinforcement cage；F, construction joint；Y, country rock；Q1, the first sealing collar；Before Q11, the first sealing collar
Side circle body；The rear side circle body of Q12, the first sealing collar；Q2, the second sealing collar；The front side circle body of Q21, the second sealing collar；Q22,
The rear side circle body of two sealing collars；N, inside tunnel.
Specific embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, with reference to the accompanying drawings and embodiments, it is right
The present invention is described in further detail.It should be appreciated that specific embodiment described herein is only to explain the present invention, and do not have to
It is of the invention in limiting.
Be not shown for the sake of concise description problem, in Fig. 1 several supporting rod 1b, several casing 1c, several trip bolt 1d,
Several countercheck rods 3, and be to carry out concreting molding construction for the first lining cutting section D1.
It is country rock Y, the first lining cutting section D1, construction joint F, the second lining cutting after implementing tunnel Second Lining Construction shown in Fig. 5
Section D2, the first sealing collar Q1, the second sealing collar Q2 mated condition.
Referring to Fig. 1-Fig. 5, the present apparatus includes extending cylinder 1a, several supporting rod 1b, two annular air bags 2, several resistances
Bar 3.
Supporting rod 1b, the quantity of countercheck rod 3 are identical.
The length of supporting rod 1b is equal to the axial length for extending cylinder 1a, and supporting rod 1b is axially disposed at along extension cylinder 1a's
Its inner wall and circumferential spaced, is extended cylinder 1a and is enclosed using the steel plate of 5mm thickness, supporting rod 1b circumferentially spaced 30
~50cm and supporting rod 1b use 10# channel steels.
Intussusception connects inside and outside two air bags 2, and the air bag 2 of inside, which is sleeved on, to be extended on cylinder 1a, the axial direction of the air bag 2 of inside
Cross sectional shape is rectangular, and the axial cross section shape of the air bag 2 in outside is circle.The axis direction for setting two air bags 2 is front and rear
Direction, two the front and rear of air bag 2 are more than the axial length for extending cylinder 1a to of same size and width, and setting extends cylinder 1a's
Axial length is C, each air bag 2 it is front and rear to width be K, then C：K is 1：1.05.
The material of each air bag 2 is rubber material, and the front side of each air bag 2 is equipped with gas nozzle 2a.During construction, gas nozzle 2a can divide
Do not connect with air gauge 4, compressor 5.
The cross sectional shape and specification of countercheck rod 3 correspond to identical, the use 8# channel steels of countercheck rod 3 respectively.
The front end of each supporting rod 1b is equipped with by fastener to be used for inserting countercheck rod 3 and rectangular casing 1c, several
The cross sectional shape and specification of casing 1c corresponds to identical, spinning trip bolt 1d on each casing 1c respectively, and each countercheck rod 3 is close
The inside of extension cylinder 1a axis areas and respective sleeve 1c grafting are (i.e.：The front end of each supporting rod 1b with a countercheck rod 3
Inside connect), and each countercheck rod 3 is positioned using the trip bolt 1d on respective sleeve 1c (in this way, countercheck rod 3 weeks
To spaced), each countercheck rod 3 is far from extending the outside of cylinder 1a axis areas and the frontside contacts of two air bags 2.
Referring to Fig. 1-Fig. 5, implement processing step and the presence of tunnel Second Lining Construction using the trolley of the equipped present apparatus
Corresponding advantage be：
1) the first cylindric steel reinforcement cage L1 of the first lining cutting section D1 (i.e. the first mould) is built in one end of tunnel (using steel
Muscle is welded), mobile trolley used to the first lining cutting section D1, the mould of trolley builds between a T and the first steel reinforcement cage L1 that there are between circumferential direction
The front end vertical connection of gap, the rear end of supporting rod 1b and the reinforced frame J of trolley, the length trend of supporting rod 1b and the mould of trolley
The axis direction for building a T is consistent, extends cylinder 1a and is located at the front end of trolley and builds a T coaxial lines (above-mentioned knot with the mould of trolley
Structure design is simple, reasonable, and convenient for assembling, bonding strength is preferable)；
2) the rear side circle body Q12 of the first sealing collar Q1 is fixed on the front side of the first steel reinforcement cage L1 and ensures its position standard
Really, the front side circle body Q11 (i.e. reserved circle body) of the first sealing collar Q1 is although exposed except the front end of the first lining cutting section D1, its
By non-bending it is round and smooth in a manner of (i.e. an air bag 2, the first sealing collar between two air bags 2 being clamped in filled with compressed air
The inside and outside intussusception connection successively of the front side circle body Q11 of Q1, another air bag 2), countercheck rod 3 is making two air bags 2 position (setting the
Before one sealing collar Q1, the first steel reinforcement cage L1, air bag 2 are close to the side of N inside tunnel, the first sealing collar Q1 of setting, the first steel
After the side of muscle cage L1, air bag 2 far from N inside tunnel is, the first sealing collar Q1's is front and rear before width is more than each air bag 2
Backward width)；
3) casting concrete in the space that both a T, country rock Y formed is built to mould, and using two air bags 2 as whole
The plugging part of body structure type circumferentially blocks the front end of the first lining cutting section D1, two 2 and first sealing collars of air bag
The front side circle body Q11 of Q1 is in flexible contact, and the front side circle body Q11 of the first sealing collar Q1 will not bending, impaired, the first sealing collar Q1
Front side circle body Q11 protected, realize quickly, conveniently, steadily sealing end (compressed air in each air bag 2 can reach one
Fixed pressure, appropriate deformation are suitable for the irregular face of the first lining cutting section D1 front ends, and this plugging structure is quite time saving, saves
Power is saved manually, conveniently, is not in the spillage problem of concrete, is effectively increased construction efficiency, reduces circulation material
Consumption, sealing end effect are preferable), 2 outer wall of air bag in outside and the country rock Y of tunnel are closely against country rock is directed toward in the outer end of countercheck rod 3
Y；
4) after the concreting of the first lining cutting section D1 is molded, the air in two air bags 2 is bled off, both is made and the
The front end of the concrete layer of one lining cutting section D1 mutually separates, then removes countercheck rod 3 and two air bags 2 (this causes exposed in the first lining
The front side circle body Q11 for building the first sealing collar Q1 except section D1 front ends is not in deformation or displacement problem, will not be broken
Damage problem has properly settled the relevant issues present in the prior art)；
5) cylindric the second steel reinforcement cage L2 for continuing to build the second lining cutting section D2 (i.e. the second mould) in tunnel (and is adopted
It is formed with reinforcement welding, sets the second steel reinforcement cage L2 close to the side of N inside tunnel before, the second steel reinforcement cage L2 is far from tunnel for setting
The side of N is rear inside hole), the second steel reinforcement cage L2 be located at the front side of the first lining cutting section D1 and between the first lining cutting section D1 there are
Gap moves forward trolley to the second lining cutting section D2 in tunnel, and the mould of trolley builds between a T and the second steel reinforcement cage L2 that there are weeks
To gap；
6) by the front side circle body Q11 of the first sealing collar Q1 (i.e. reserved circle body) be fixed on the second steel reinforcement cage L2 rear side (because
The front side circle body Q11 of first sealing collar Q1 is not in deformation or displacement problem, in this way, the front side circle body of the first sealing collar Q1
Corresponding twisting stress would not be generated in Q11 so that after the front side circle body Q11 and the second steel reinforcement cage L2 of the first sealing collar Q1
Side can it is smooth, sleekly fix)；
7) the rear side circle body Q22 of the second sealing collar Q2 is fixed on the front side of the second steel reinforcement cage L2 and ensures that its position is accurate
(the second sealing collar Q2, the structure of the first sealing collar Q1 and specification correspond to identical respectively), the front side circle body Q21 of the second sealing collar Q2
Although exposed except the front end of the second lining cutting section D2, its by non-bending it is round and smooth in a manner of be clamped in filled with compressed air
(i.e. inside and outside intussusception connects successively for an air bag 2, the front side circle body Q21 of the second sealing collar Q2, another air bag 2 between two air bags 2
Connect), countercheck rod 3 (sets the side of the second sealing collar Q2 N inside the tunnel before, setting the position two air bags 2
Sides of the two sealing collar Q2 far from N inside tunnel is rear)；
8) casting concrete, and use two gas again again in the space that both a T, country rock Y formed is built to mould
The plugging part of the structure type as a whole of capsule 2, circumferentially blocks the front end of the second lining cutting section D2, two air bags 2 with
The front side circle body Q21 of second sealing collar Q2 is in flexible contact, the front side circle body Q21 of the second sealing collar Q2 will not bending, impaired, the
The front side circle body Q21 of two sealing collar Q2 is protected, and realizes that quickly, conveniently, steadily (compression in each air bag 2 is empty for sealing end
Gas can reach certain pressure, and appropriate deformation is suitable for the irregular face of the second lining cutting section D2 front ends, this plugging structure
Quite time saving, laborsaving, saving is not in the spillage problem of concrete manually, conveniently, effectively increases construction efficiency, reduces
The consumption of circulation material, sealing end effect are preferable), 2 outer wall of air bag in outside and the country rock Y of tunnel be closely against countercheck rod 3
It is directed toward country rock Y in outer end；
9) after the concreting of the second lining cutting section D2 is molded, the first sealing collar Q1 is in the first lining cutting section D1, second
(the front side circle body Q11 of the first sealing collar Q1 is located at construction joint F in the adjacent area of lining cutting section D2 and at construction joint F
For exposed part, first it is not in damaging problem when being blocked using two air bags 2, second in the actual use of tunnel
In the process, because that will not generate corresponding twisting stress in the front side circle body Q11 of the first sealing collar Q1, therefore its service life is prolonged
Long, so that country rock Y can be effectively prevent to seep water, water-stagnating effect is preferable)；
10) air in two air bags 2 is bled off again, makes the two and the front end phase of the concrete layer of the second lining cutting section D2
It separates, then removes countercheck rod 3 and two air bags 2 (this causes exposed the second sealing collar Q2 except the second lining cutting section D2 front ends
Front side circle body Q21 be not in deformation or displacement problem, damaging problem will not occur, properly settle the prior art and deposited
Relevant issues)；
Be repeated several times 5) -10) processing step, so as to complete the Second Lining Construction of tunnel.
In conclusion implementing tunnel Second Lining Construction using the trolley of the installation present apparatus, there are advantages below：It can be fast
Speed easily blocks the front end of each lining cutting section, and when closure is not in spillage problem, and construction efficiency is higher, recruitment
Number is few, circulation material consumption is small, water-stagnating effect is also preferable.
Therefore, the present apparatus is fitted on trolley, can effectively improve construction efficiency so that the sealing end of tunnel Second Lining Construction
Effect is preferable.
The foregoing is merely presently preferred embodiments of the present invention, is not used for limiting the practical range of the present invention；If it does not take off
It from the spirit and scope of the present invention, modifies or equivalently replaces the present invention, should all cover in the claims in the present invention
In protection domain.Such as：
The length of supporting rod can also be more than the axial length for extending cylinder；
The front end of each supporting rod can also be equipped with the casing for being used for inserting countercheck rod by welding manner；
The inside extended line of each countercheck rod can also intersect with extending the axis of cylinder；
The axial cross section shape of the air bag in outside can also be ellipse；
Set extend the axial length of cylinder as C, each air bag it is front and rear to width be K, then C：K can also be 1：
Flexibly selection according to actual needs in the ratio range of (1.05-1.2).
Claims (3)
1. tunnel Second Lining Construction double bolloon formula termination device, it is characterised in that：It include extend cylinder, several supporting rods,
Two annular air bags, several countercheck rods, supporting rod, the quantity of countercheck rod are identical, and the length of supporting rod is not less than extension cylinder
Axial length, supporting rod is axially disposed at its inner wall and circumferential spaced along extend cylinder, sets the axis of two air bags
Direction is front-rear direction, and two the front and rear of air bag are more than the axial length for extending cylinder, each air bag to of same size and width
Material for elastic material, the front side of each air bag is equipped with gas nozzle, and intussusception connection inside and outside two air bags, the Air sac cover of inside is mounted in
Extend on cylinder, the front end of each supporting rod connects with a countercheck rod on the inside of extension cylinder axis region, each
Frontside contacts of the countercheck rod far from the outside for extending cylinder axis region and two air bags.
2. tunnel Second Lining Construction double bolloon formula termination device according to claim 1, it is characterised in that：
The cross sectional shape and specification of the countercheck rod correspond to identical respectively；
The front end of each supporting rod is equipped with the casing for being used for inserting countercheck rod, and the cross sectional shape and specification of several casings correspond to respectively
It is identical, spinning trip bolt on each casing, inside and the respective sleeve grafting of each countercheck rod, and each countercheck rod utilizes phase
The trip bolt on casing is answered to be positioned.
3. tunnel Second Lining Construction double bolloon formula termination device according to claim 1 or 2, it is characterised in that：
The material of each air bag uses rubber material；
The axial cross section shape of the air bag of inside is rectangular, and the axial cross section shape of the air bag in outside is round or ellipse.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810197157.6A CN108222972B (en) | 2018-03-10 | 2018-03-10 | Double-airbag type end sealing device for tunnel secondary lining construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810197157.6A CN108222972B (en) | 2018-03-10 | 2018-03-10 | Double-airbag type end sealing device for tunnel secondary lining construction |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108222972A true CN108222972A (en) | 2018-06-29 |
| CN108222972B CN108222972B (en) | 2024-04-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810197157.6A Active CN108222972B (en) | 2018-03-10 | 2018-03-10 | Double-airbag type end sealing device for tunnel secondary lining construction |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110985068A (en) * | 2019-11-27 | 2020-04-10 | 中铁隧道局集团建设有限公司 | Novel tunnel secondary lining end water-stopping sealing dual-purpose water-stopping belt |
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| JP2001317297A (en) * | 2000-05-09 | 2001-11-16 | Gifu Kogyo Co Ltd | Method and device for stopping gable of concrete for tunnel lining |
| CN205135654U (en) * | 2015-11-13 | 2016-04-06 | 长安大学 | Fill exhaust formula tunnel secondary lining formworking jumbo end template |
| CN106837385A (en) * | 2017-04-07 | 2017-06-13 | 中国水利水电第五工程局有限公司 | A kind of seamless stopend for Tunnel Second Lining |
| CN207989049U (en) * | 2018-03-10 | 2018-10-19 | 安徽水利开发股份有限公司 | Tunnel Second Lining Construction double bolloon formula termination device |
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| JPH10280891A (en) * | 1997-03-31 | 1998-10-20 | Konoike Constr Ltd | End formwork of tunnel lining concrete |
| JP2001317297A (en) * | 2000-05-09 | 2001-11-16 | Gifu Kogyo Co Ltd | Method and device for stopping gable of concrete for tunnel lining |
| CN205135654U (en) * | 2015-11-13 | 2016-04-06 | 长安大学 | Fill exhaust formula tunnel secondary lining formworking jumbo end template |
| CN106837385A (en) * | 2017-04-07 | 2017-06-13 | 中国水利水电第五工程局有限公司 | A kind of seamless stopend for Tunnel Second Lining |
| CN207989049U (en) * | 2018-03-10 | 2018-10-19 | 安徽水利开发股份有限公司 | Tunnel Second Lining Construction double bolloon formula termination device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110985068A (en) * | 2019-11-27 | 2020-04-10 | 中铁隧道局集团建设有限公司 | Novel tunnel secondary lining end water-stopping sealing dual-purpose water-stopping belt |
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