CN205936654U - A gasbag template for tunnel secondary lining - Google Patents
A gasbag template for tunnel secondary lining Download PDFInfo
- Publication number
- CN205936654U CN205936654U CN201620973715.XU CN201620973715U CN205936654U CN 205936654 U CN205936654 U CN 205936654U CN 201620973715 U CN201620973715 U CN 201620973715U CN 205936654 U CN205936654 U CN 205936654U
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- ring portion
- lining
- internal ring
- groove
- air bag
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Abstract
The utility model relates to a gasbag template for tunnel secondary lining, including the inner ring portion and the outer loop portion that link to each other, inner ring portion and outer loop portion shape are the arch with secondary lining terminal surface shape adaptation, and outer loop position in the arched radial periphery of inner ring portion, inner ring portion and outer loop partially do not have independent air chamber, are provided with double -layered groove between inner ring portion and the outer loop portion, and inner ring portion and/or outer loop position are provided with the slot in pressing from both sides groove open -ended side, the slot is followed arch length direction extends. Can set up the gasbag template at the tip of pouring the space, the clamp sets up the waterstop in the groove, and the realization shutoff is aerifyd to the gasbag template, after gasbag template outer end sets up support piece concreting can, need not relapse the dismouting plank sheathing, the work progress is simple, saves a large amount of timber and manual work. The slot of gasbag side can form protruding muscle, the cohesion and the waterproof ability of increase and next section lining cutting at the lining cutting terminal surface.
Description
Technical field
This utility model is related to constructing tunnel, relates particularly to a kind of air bag form of Tunnel Second Lining Construction.
Background technology
Constructing tunnel, needs first to form preliminary bracing in the Tunnel wall jet concrete excavated, then does paragraph by paragraph
Go out guarded drainage layer and secondary lining, guarded drainage layer is fitted with preliminary bracing, including setting draining blind pipe, geotextiles, splash guard etc.,
Secondary lining needs first to arrange within guarded drainage layer bar-mat reinforcement, formwork jumbo is walked to construction area, allows trolley formwork to stretch
Go out, form the casting space of secondary lining between trolley formwork and guarded drainage layer.In casting space casting concrete, after solidification
Obtain this section of secondary lining, before casting concrete, need first with template, the space of above-mentioned casting space end to be blocked, prevent
Only concrete leaks.
At present, conventional casting space end face method for blocking, is to arrange twice arch template according to the shape of lining cutting, bowed out
The outside of template is contacted with preliminary bracing, arranges waterstop, for the sealing of two sections of lining cutting joining places between inside and outside arch template.
Due to the concrete pole out-of-flatness of Tunnel preliminary bracing injection, if bowed out template uses the formwork parts of standard, cannot be with
Preliminary bracing is in close contact, and necessarily leaks.Therefore not only can only consume a large amount of using the matching board splicing of lamellar plank sheathing scene
Timber, and operation easier is big, and along with inside and outside arch needs between template to install, reinforces waterstop, operation easier increases further
Plus, often consume artificial in a large number, spillage also still occurs, runs mould, the problems such as waterstop misplaces.And entirely tunnel includes
A lot of section Second Lining Construction, every section of lining cutting is required for installing, dismounting plank sheathing makes work progress very loaded down with trivial details.
Utility model content
Technical problem to be solved in the utility model is：A kind of air bag form is provided, so that the end face of casting space is blocked
Operation is simpler, and construction quality improves.
This utility model solves its technical problem and be employed technical scheme comprise that：
For the air bag form of Tunnel Second Lining, including the internal ring portion being connected and outer portion, internal ring portion and outer portion shape
Shape is the arch being adapted to secondary lining end surface shape, and outer portion is located at the radial outer periphery of internal ring portion arch；Internal ring portion is with outward
Ring portion is respectively provided with independent air chamber, is provided with groove between internal ring portion and outer portion, and internal ring portion and/or outer portion are located at groove
The side of opening is provided with groove, and described groove extends along described arch shaped length direction.
Further, described internal ring portion and outer portion are respectively arranged with least one along its length and are used for maintaining section shape
The sizing cut-off of shape, described sizing cut-off is provided with the breather at connection two ends.
Further, described internal ring portion design internal diameter is identical with the design internal diameter size of secondary lining to be poured, outer shroud
Portion designs external diameter 10cm bigger than the design external diameter of secondary lining to be poured.
Further, described internal ring portion and outer portion material are rubber.
The beneficial effects of the utility model are：Tunnel Second Lining Construction is carried out using above-mentioned air bag form, by air bag mould
Plate replaces splice plate template-setup in casting space end face, and waterstop can easily insert in the crack of air bag form, inflation
Make airbag inflation can achieve end face closure, and clamp waterstop, after casting concrete solidification, the half of waterstop is just solid
It is scheduled in lining cutting, subsequent air bag deflation, can easily remove air bag for next time using it is not necessary to repeated disassembled and assembled plank sheathing, construct
Process is simple, can improve construction quality, and saves a large amount of timber and artificial.The groove of air bag side can be in lining cutting end face shape
Become convex tendon, increase the adhesion with next section of lining cutting and waterproof ability.
Brief description
Fig. 1 is schematic diagram during Tunnel Second Lining Construction；
Fig. 2 is air bag form schematic diagram of the present utility model；
Fig. 3 is the partial schematic diagram of air bag form of the present utility model；
In figure reference is：Formwork jumbo 1, trolley formwork 11, preliminary bracing 21, guarded drainage layer 22, casting space 3,
Air bag form 4, internal ring portion 41, outer portion 42, groove 421, groove 43, waterstop 431, sizing cut-off 44.
Specific embodiment
With reference to the accompanying drawings and examples this utility model is further illustrated：
For the air bag form of Tunnel Second Lining, including the internal ring portion 41 being connected and outer portion 42, internal ring portion 41 is with outward
Ring portion 42 is shaped as the arch being adapted to secondary lining end surface shape, and outer portion 42 is outside positioned at the footpath of internal ring portion 41 arch
Enclose；Internal ring portion 41 and outer portion 42 are respectively provided with independent air chamber, are provided with groove 43 between internal ring portion 41 and outer portion 42, interior
Ring portion 41 and/or outer portion 42 are provided with groove 421 positioned at the side of groove 43 opening, and described groove 421 is long along described arch
Degree direction extends.
Air bag form of the present utility model is used for replacing traditional splicing plank sheathing, and it includes connected internal ring portion 41 with outward
Ring portion 42, that is, as shown in Figure 2,3, outer portion 42 is connected to the dome of internal ring portion 41, and both have independent air chamber, are
Respectively internal ring portion 41 and outer portion 42 can be inflated, allow internal ring portion 41 and outer portion 42 to enrich respectively.Internal ring portion 41 and outer shroud
Portion 42 adopts soft deformable material, and such as plastics, air-locked braided material etc., can be preferably rubber, after inflation
Air bag form forms arch, can shrink folding after venting.
As shown in Figure 2,3, it is provided with groove 43 between internal ring portion 41 and outer shroud 42, groove 43 is along whole air bag form 4
Arch extend, the half of waterstop 431 may be inserted in groove 43, and second half exposes from air bag form 4 side.Internal ring portion 41
With outer portion 42 inflation, waterstop 431, and the opening closure by casting space 3 end face can be clamped, realize the closure of template
Function.
As shown in figure 3, groove 421 is located at the side that groove 43 opening is located, that is, will contact with casting concrete
Side, the lining cutting end face after groove 421 can make to pour forms convex tendon, then after pouring next section of lining cutting, can increase by two sections of linings
Build the linking power of faying face, also increase waterproof effect.
Specifically, Tunnel Second Lining Construction method is carried out using above-mentioned air bag form, can carry out including order
Following steps：
A, complete the preliminary bracing 21 of Tunnel and guarded drainage layer 22 is constructed, arrange in the medial surface of guarded drainage layer 22 secondary
The bar-mat reinforcement of lining cutting；Formwork jumbo 1 is walked to construction position, stretches out trolley formwork 11, in trolley formwork 11 and guarded drainage layer 22
Between formed secondary lining casting space 3, described bar-mat reinforcement be located at casting space 3 in；
B, the air bag form 4 for Tunnel Second Lining described in the setting of the end of described casting space 3, make described ditch
Groove 421 place side, towards casting space 3, is inflated to described air bag form 4 and is arranged waterstop 431 in groove 43, only allow
Water band 431 half is located in groove 43, and second half exposes from air bag form 4 side, and stretches in casting space 3, the gas of inflation
Capsule template 4 is by the plug at end part of casting space 3；
C, air bag form 4 outer end arrange support member, to casting space 3 casting concrete, treat that concrete setting reaches by force
After scale standard, remove support member, air bag form 4 is exitted and taken out, and this section of Second Lining Construction completes.
As shown in Figure 1：First conventionally, complete the preliminary bracing 21 of Tunnel and guarded drainage layer 22 is constructed, then
Construction secondary lining：The position being first located in guarded drainage layer 22 in tunnel arranges the bar-mat reinforcement of secondary lining, then by template
Chassis 1 is walked the construction position of this section of lining cutting, stretches out trolley formwork 11, forms two between trolley formwork 11 and guarded drainage layer 22
The casting space 3 of secondary lining cutting, bar-mat reinforcement is located in casting space 3, after follow-up fill concrete, you can obtain this section of secondary lining
Build.
Before concreting, it is arranged at the end face opening of casting space with air bag form 4, and arrange in groove 43
Waterstop 431, airbag aeration expands realizes plugging effect.During air bag form 4 setting, the side direction that groove 421 to be allowed is located
Casting space 3, allows waterstop 431 half to be clipped in groove 43, second half stretches into casting space 3, follow-up casting concrete, dismounting
After air bag form 4, then the end face of the vertical insertion lining cutting of half waterstop 431, is set in concrete, second half waterstop
431 expose lining cutting end face, and for being connected with rear one section of lining cutting pouring, and groove 421 is just contacted with the concrete pouring,
Lining cutting end face formation convex tendon after making to pour, then the linking power of two sections of lining cutting faying faces when pouring next section of lining cutting, can be increased,
Also increase waterproof effect.
Preferably, air bag form 4 is inflated and method that waterstop 431 is set in groove 43, can be first internally
Ring portion 41 is inflated, and then injects the half of waterstop 431 in groove 43, then outer portion 42 is inflated, so that waterstop 431 is pressed from both sides
Tightly.
Internal ring portion 41 inflation, arch shapes substantially, now by waterstop 431 insertion groove 43, more convenient operation,
Subsequently outer portion 42 inflation, waterstop 431 is clamped by internal ring portion 41, outer portion 42, and blocks the end face of casting space 3.
Because air bag form 4 has certain flexibility, can be deformed according to the surface configuration of preliminary bracing, therefore plugging effect is good, no
Easily there is spillage.
Then, support member need to be set to air bag form 4 outer end, air bag form 4 is propped up by support member, pour for antagonism mixed
During solidifying soil flowing, impact and the pressure to air bag form 4, for example, can be that support member includes gripper shoe and support bar, gripper shoe shelves
Outside air bag form 4, support bar one end is resisted against gripper shoe, and the other end is resisted against on formwork jumbo 1.Can also be other shapes
Air bag form 4 is blocked by the part of formula, prevents from being extruded by the pressure of concrete.
Then to casting space 3 casting concrete, treat that concrete setting reaches strength criterion, for example, reach design strength
60～75%, you can remove support member, air bag form 4 is exitted, taken out, this section of Second Lining Construction completes.Air bag form 4 does
After necessary cleaning, the pouring construction of next section of lining cutting can be re-used for, with respect to the splicing plank sheathing of conventional construction method,
All a large amount of man-hours can be saved when model sheetinstallat and dismounting operation, and air bag form 4 can be reused several times, and can save expense
With.
Preferably, to before casting space 3 casting concrete, can first the contact surface of air bag form 4 and concrete be applied
Cloth concrete parting agent.After follow-up concrete setting, it is easy to the demoulding and air bag cleaning.
This air bag form 4 according to the size of Tunnel Second Lining come design size can be able to be preferably, described internal ring portion
41 design internal diameters are identical with the design internal diameter size of secondary lining to be poured, and it is more secondary than to be poured that outer portion 42 designs external diameter
The big 10cm of design external diameter of lining cutting.
So-called internal ring portion 41 designs internal diameter, refers to that internal ring portion 41 is full of internal diameter when gas expands, outer portion 42 designs outer
Footpath refers to that outer portion 42 is full of external diameter when gas expands.
Outer portion 42 designs external diameter and is more than the secondary lining external diameter pouring, and can make the outer portion 42 of expansion and the first of tunnel
Phase supporting 21 is fully contacted, and can adequately fill up preliminary bracing 21 depression in the surface after outer portion 42 crimp, and closure is tighter
Close, mortar leakage prevention.
Preferably, can be described internal ring portion 41 and outer portion 42 is respectively arranged with least one along its length and is used for tieing up
Hold the sizing cut-off 44 of cross sectional shape, described sizing cut-off 44 is provided with the breather at connection two ends.
Embodiment as shown in Figure 2, its internal ring portion 41 and outer portion 42 are respectively provided with four sizing cut-offs 44, cut-off 44 of shaping
The cross sectional shape of air bag can be maintained, for example, can be the horizontal stroke that rectangular plastics or diaphragm of rubber are arranged on outer portion 42 inwall
On section, outer portion 42 is made after inflating, still to keep the profile of square column type；In the same manner, internal ring portion 41 inwall is also provided with sizing cut-off
44.
Sizing cut-off 44 be provided with breather for connection separate two ends space, make gas can be full of whole outer portion
42 or internal ring portion 41, not affected by sizing cut-off 44.
Claims (4)
1. it is used for the air bag form of Tunnel Second Lining it is characterised in that including internal ring portion (41) and the outer portion (42) being connected,
Internal ring portion (41) and outer portion (42) are shaped as the arch being adapted to secondary lining end surface shape, and outer portion (42) is located at internal ring
The radial outer periphery of portion (41) arch；Internal ring portion (41) and outer portion (42) are respectively provided with independent air chamber, and internal ring portion (41) is with outward
It is provided with groove (43), internal ring portion (41) and/or outer portion (42) set positioned at the side of groove (43) opening between ring portion (42)
It is equipped with groove (421), described groove (421) extends along described arch shaped length direction.
2. be used for as claimed in claim 1 the air bag form of Tunnel Second Lining it is characterised in that described internal ring portion (41) and
Outer portion (42) is respectively arranged with least one along its length for maintaining the sizing of cross sectional shape to separate (44), described sizing
Cut-off (44) is provided with the breather at connection two ends.
3. it is used for the air bag form of Tunnel Second Lining as claimed in claim 1 it is characterised in that described internal ring portion (41) sets
Meter internal diameter is identical with the design internal diameter size of secondary lining to be poured, and outer portion (42) design external diameter is than secondary lining to be poured
The big 10cm of design external diameter building.
4. be used for as claimed in claim 1 the air bag form of Tunnel Second Lining it is characterised in that described internal ring portion (41) and
Outer portion (42) material is rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620973715.XU CN205936654U (en) | 2016-08-29 | 2016-08-29 | A gasbag template for tunnel secondary lining |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620973715.XU CN205936654U (en) | 2016-08-29 | 2016-08-29 | A gasbag template for tunnel secondary lining |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205936654U true CN205936654U (en) | 2017-02-08 |
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ID=57954485
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620973715.XU Active CN205936654U (en) | 2016-08-29 | 2016-08-29 | A gasbag template for tunnel secondary lining |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107100652A (en) * | 2017-05-19 | 2017-08-29 | 中国矿业大学(北京) | A kind of compliant impact resistant method for protecting support and device |
| CN107269301A (en) * | 2017-08-17 | 2017-10-20 | 中铁局集团有限公司 | A kind of Tunnel Second Lining Construction air bag termination device and end-blocking construction method |
| CN108506024A (en) * | 2018-04-17 | 2018-09-07 | 蓝传雯 | A kind of construction method and supporting mold of Tunnel |
| CN108952767A (en) * | 2018-08-01 | 2018-12-07 | 中铁十七局集团有限公司 | A kind of flexible overlap joint template component and its flexibility lapping construction method of lining trolley |
| CN109723470A (en) * | 2019-01-24 | 2019-05-07 | 西南交通大学 | Adapt to the Radial resistant force controllable type supporting construction and method for protecting support in large deformation tunnel |
| CN111119944A (en) * | 2020-02-17 | 2020-05-08 | 国家电网有限公司 | Tunnel concrete lining inflation die |
| CN112065447A (en) * | 2020-09-08 | 2020-12-11 | 中建钢构天津有限公司 | Tunnel formwork and construction method |
-
2016
- 2016-08-29 CN CN201620973715.XU patent/CN205936654U/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107100652A (en) * | 2017-05-19 | 2017-08-29 | 中国矿业大学(北京) | A kind of compliant impact resistant method for protecting support and device |
| CN107100652B (en) * | 2017-05-19 | 2023-11-17 | 中国矿业大学(北京) | Flexible impact-resistant supporting method and device |
| CN107269301A (en) * | 2017-08-17 | 2017-10-20 | 中铁局集团有限公司 | A kind of Tunnel Second Lining Construction air bag termination device and end-blocking construction method |
| CN108506024A (en) * | 2018-04-17 | 2018-09-07 | 蓝传雯 | A kind of construction method and supporting mold of Tunnel |
| CN108952767A (en) * | 2018-08-01 | 2018-12-07 | 中铁十七局集团有限公司 | A kind of flexible overlap joint template component and its flexibility lapping construction method of lining trolley |
| CN109723470A (en) * | 2019-01-24 | 2019-05-07 | 西南交通大学 | Adapt to the Radial resistant force controllable type supporting construction and method for protecting support in large deformation tunnel |
| CN111119944A (en) * | 2020-02-17 | 2020-05-08 | 国家电网有限公司 | Tunnel concrete lining inflation die |
| CN112065447A (en) * | 2020-09-08 | 2020-12-11 | 中建钢构天津有限公司 | Tunnel formwork and construction method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180408 Address after: 721006 Baoji province Shaanxi city Weibin District Zhongtan Road No. 4, No. 9 Building 4 unit 4 Building No. 11 Co-patentee after: No.4 Engineering Co., Ltd., Zhongtie Co., Ltd., Bureau Group Patentee after: Yao Zhijun Address before: 721006 Baoji province Shaanxi city Weibin District Zhongtan Road No. 4, No. 9 Building 4 unit 4 Building No. 11 Patentee before: Yao Zhijun |