CN107119717A - A kind of waters tunnel is without punching Screw arbor with nut at both-ends formwork erecting structure - Google Patents
A kind of waters tunnel is without punching Screw arbor with nut at both-ends formwork erecting structure Download PDFInfo
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- CN107119717A CN107119717A CN201710449904.6A CN201710449904A CN107119717A CN 107119717 A CN107119717 A CN 107119717A CN 201710449904 A CN201710449904 A CN 201710449904A CN 107119717 A CN107119717 A CN 107119717A
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- steel bar
- nut
- bottom plate
- frame
- screw arbor
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/045—Underground structures, e.g. tunnels or galleries, built in the open air or by methods involving disturbance of the ground surface all along the location line; Methods of making them
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
Abstract
The invention belongs to building field, and in particular to a kind of waters tunnel is without punching Screw arbor with nut at both-ends formwork erecting structure.Bottom plate including the concrete that has first poured, build in bottom plate both sides be used for formed outer mould holder, build in being used to forming the internal mould supporter of internal model on bottom plate, be fixedly arranged on respectively exterior sheathing and inner template on the inside of outer mould holder and on the outside of internal mould supporter, to draw between outer mould holder and above exterior sheathing to drawing steel bar, be also associated with that one end is embedded in bottom plate in advance, the other end stretches out the connection steel bar that the bottom plate is connected with the outer mould holder between the outer mould holder and the bottom plate.Using Bailey truss without punching Screw arbor with nut at both-ends form erecting technology, solve the problem of easily permeable seepage occurs for traditional waterproof punching split bolt drawknot side wall, avoid the influence to wall body durability because of permeable infiltration, on the premise of construction workability is ensured, the globality of structure is improved, is a kind of technological sciences, economy, environment-friendly external wall form erecting technology.
Description
Technical field
The invention belongs to building field, and in particular to a kind of waters tunnel is without punching Screw arbor with nut at both-ends formwork erecting structure.
Background technology
Most of structure is located under water or in aqueous abundant soil layer after the completion of constructing tunnel in water, pair is directly connect with outside
Tactile external wall requires extremely strict.For usual waters vertical member, caused to prevent during concreting that lateral pressure is excessive
Swollen mould use waterproof split bolt drawknot side form more.
Theoretically analyze, slope heavy excavation construction section tunnel agent structure external wall formwork in waters is most economical feasible
Scheme is to use waterproof punching split bolt, i.e., for supporting multi-point between the outer stupefied support of external mold and internal mould supporter system
Connected with punching split bolt, then carry out concreting, punching split bolt penetrates whole concrete layer after the completion of pouring,
To prevent that precondition is that the seal ring tablet quality on waterproof punching split bolt will meet the standard of zero tolerance from position infiltration is penetrated,
If there are indivedual sealing ring plates to weld bad, concrete vibrating leakiness, or the lake water with seal ring will be along punching pair
Bolt is drawn to penetrate into tunnel.But in Practical Project, it is to be ensured that every punching split bolt is impermeable to be difficult to.Therefore, except true
Protecting concrete has outside impervious, cracking resistance high performance index and reinforcement structure concrete pouring quality, in tunnel during main body construction
How to install outside wall form turns into the key of construction.
Such as the construction method in domestic built similar tunnel, usual external mold is that bulk punching block adds stupefied support outside H profile steel, and internal model is
Steel（Wood）Mould fills it up with a strutting system, but causes concrete lateral pressure larger compared with Gao Shihui for tunnel structure, need to use a large amount of
Shaped steel is as outer stupefied and support, and construction input cost is also corresponding higher, and current sidewalk limited width, outer side mold on the outside of casing
Such as cause impassable using occupancy sidewalk after support.
The content of the invention
The purpose of the present invention be provide regarding to the issue above a kind of waters tunnel concrete structure without punching Screw arbor with nut at both-ends
Form erecting technology.
The present invention above-mentioned technical purpose technical scheme is that：
A kind of waters tunnel without punching Screw arbor with nut at both-ends formwork erecting structure, including the concrete first poured bottom plate, build in bottom plate
Both sides be used for formed outer mould holder, build on bottom plate be used for formed internal model internal mould supporter, be fixedly arranged on outer mould holder respectively
Exterior sheathing and inner template on the outside of inner side and internal mould supporter, to draw between outer mould holder and above exterior sheathing to drawing steel
Bar, is also associated with one end and is embedded in interior bottom plate, the other end stretching bottom plate and institute in advance between the outer mould holder and the bottom plate
State the connection steel bar of outer mould holder connection.
Preferably, the outer mould holder is Bailey truss, described pair of drawing steel bar and connection steel bar are fining twisted steel.
Above-mentioned ruggedized construction mode is beneficial to improve on the premise of difficulty of construction, relative saving engineering cost is not increased
The globality and durability of waters tunnel concrete structure.
Preferably, the side roof part of bottom plate two is connected with the side wall root of projection, the connection steel bar is embedded in advance
In the side wall root and it is embedded into the inner of side wall root and is left and the side wall between the medial surface of the side wall root
The solid mouth-sealed portion of root integrally connected.
It is specifically side wall both sides Bailey truss is fixed to drawing steel bar and connecting steel bar, and connects steel bar
Side wall is not penetrated, so as to not form through hole, and then is ensured between inside and outside mould holder without being directly connected to part, it is ensured that pour first-class whole
Without perforation on individual side wall, side wall seepage problem is thoroughly solved.
Preferably, the Bailey truss includes multigroup beret truss group, every group of beret truss group includes two panels perpendicular to external mold
The beret truss that plate sets and is connected by framework, described pair of drawing steel bar is arranged in the gap between adjacent beret truss group.
The characteristics of bearing larger stress because of Bailey beam and deformed compared with small deflection, is carried on the back by the use of Bailey beam as outer mould holder
It is stupefied, by can effectively solve stupefied support is present outside existing H profile steel installation, support strength to being fixed above and below shellfish thunder two and ask
Topic, reduces current sidewalk on the outside of construction input cost, and casing more spacious.
Preferably, between the adjacent beret truss group at least provided with about two be arranged in parallel to draw steel bar, it is described
Provided with control away from cushion block at the top of exterior sheathing, it is underlying to draw steel bar be located at located at the control away from above cushion block or pad be against it is described
Control is away from the top of cushion block.
It is easy to the height and position of control docking steel bar away from cushion block by controlling, so that it is guaranteed that will not be by drawing when pouring tunnel top
Steel bar is embedded to, and is easy to pour again, while also allowing for location and installation to drawing steel bar.
Preferably, between the adjacent beret truss group provided with about two be arranged in parallel to draw steel bar, described pair draw
Gap of the steel bar through the adjacent beret truss group is simultaneously stretched out on the outside of the Bailey truss, and two to drawing steel bar to exceed
A positive stop strip each is bolted with Bailey truss part, the positive stop strip turns down to form back hook portion to beret truss side, described right
Drawing steel bar restocking to be provided with is used to positioning two bundle groups to draw steel bar and middle part with the caulking groove that can be caught in described pair of drawing steel bar
Part, described time hook portion is set around in the bundle group parts outside wall surface.
Positive stop strip is used to prevent bundle group parts abjection, so that bundle group parts reach the effect of more firm steel bar.
Preferably, the bundle group parts include the frame block main body with the open caulking groove in bottom, located at frame block main body top
The jointed shaft in portion, the positioning being articulated with jointed shaft are around block, and the frame block main body side, which is offered, can hold positioning around block insertion frame
Block main body and clasp described pair of drawing steel bar lead caulking groove.
It is provided with preferably, the positioning is transferred to the described pair of drawing steel bar of correspondence of the inner side after caulking groove of leading around block along to drawing
Positioning groove that steel bar length direction is set and open at both ends, the groove depth of the positioning groove is more than the straight of described pair of drawing steel bar
Footpath.
Then the first frame of frame block main body to top is put down into positioning around block to drawing on steel bar during installation, and so that two are right
Steel bar is drawn not only to be embedded in caulking groove simultaneously and positioned at positioning in two positioning grooves of block, so as to two to drawing steel bar to enter
Row fixed point location is fixed.
Preferably, the positioning is located at two on the inside of block has pin to going back integrally connected projection between drawing steel bar and being provided with
Communicated in the lock-joining part in hole, the frame block main body with the caulking groove of leading provided with the locked groove docked with the lock-joining part, the locked groove
Only to have direction to lead open caulking groove side or bottom and right in the open end seal groove in caulking groove side, the frame block main body towards leading
The pin-and-hole on the lock-joining part is answered to offer along to drawing steel bar length direction to wearing the pin-and-hole of the frame block main body, the frame block master
Body is detachably affixed by being inserted in the pin on the pin-and-hole with the lock-joining part, and the frame block main body width is more than adjacent shellfish
Gap width between thunder piece group, described time hook portion extend to beret truss and exceed the frame of the beret truss and turn back be buckled in it is described
On the frame of beret truss, at least top is provided with frame in the frame edge in described time hook portion on the frame block main body outer side surface, described
Frame is flushed along bottom surface with the groove top surface of highly immediate positioning groove.
The setting of said structure can precisely strong fix to drawing steel bar, while also can guarantee that to draw steel bar and beret truss it
Between it is easy to assemble, can guarantee that again has enough restraining functions to beret truss.
Preferably, described connection steel bar the inner is at least fixed with one group and is used for the anchor plate and nut of anticreep, the anchor
On backing plate hangnail is additionally provided with the side of direction connection steel bar outer end；The side wall root thickness is 100 ~ 120cm, the connection
The length that steel bar is embedded in the part in the side wall root in advance is 70 ~ 85 cm, and the length for stretching out the part of the side wall root is
10~20 cm。
In summary, the invention has the advantages that：
1st, traditional waterproof punching split bolt drawknot side wall is solved without punching Screw arbor with nut at both-ends form erecting technology using Bailey truss
The problem of easily occurring permeable seepage, it is to avoid the influence because of permeable infiltration to wall body durability, is ensureing construction workability
Under the premise of, the globality of structure is improved, is a kind of technological sciences, economy, environment-friendly external wall form erecting technology.
2nd, the application is simple in construction, and easy construction, cost is low, and intensity is high, and globality is strong, and the tunnel poured is without perforating not
Permeable, service life is long.
Brief description of the drawings
Fig. 1 is the application structural representation one；
Fig. 2 is the application structural representation two；
Fig. 3 is to tie group parts and to drawing steel bar fit structure schematic diagram one；
Fig. 4 is bundle group parts structural representation；
Fig. 5 is to tie group parts and to drawing steel bar fit structure schematic diagram two；
Fig. 6 is to tie group parts and to drawing steel bar fit structure schematic diagram three；
Fig. 7 is to tie group parts and to drawing steel bar fit structure schematic diagram four；
Fig. 8 is to tie group parts and to drawing steel bar fit structure schematic diagram five.
Embodiment
The present invention is described in further detail below in conjunction with accompanying drawing.
This specific embodiment is only explanation of the invention, and it is not limitation of the present invention, people in the art
Member can make the modification without creative contribution to the present embodiment as needed after this specification is read, but as long as at this
All protected in the right of invention by Patent Law.
Embodiment one：
A kind of waters tunnel is without punching Screw arbor with nut at both-ends formwork erecting structure, it is characterised in that：Including the bottom plate of the concrete first poured
1st, being used to form outer mould holder, build in being used to being formed the internal mould supporter, solid respectively of internal model on bottom plate in bottom plate both sides is built
Exterior sheathing 5 and inner template on the inside of the outer mould holder and on the outside of internal mould supporter, to drawing between outer mould holder and positioned at external mold
Above plate to drawing steel bar 3, be also associated with that one end is embedded in bottom plate in advance, the other end is stretched between the outer mould holder and the bottom plate
Go out the connection steel bar 4 that the bottom plate is connected with the outer mould holder.
The outer mould holder is Bailey truss 2, and described pair of drawing steel bar and connection steel bar are fining twisted steel.
Above-mentioned ruggedized construction mode is beneficial to improve on the premise of difficulty of construction, relative saving engineering cost is not increased
The globality and durability of waters tunnel concrete structure.
The side roof part of bottom plate two is connected with the side wall root 11 of projection, and the connection steel bar is embedded in the side wall in advance
In root and be embedded into the inner of side wall root to left between the medial surface of the side wall root and the side wall root one
The solid mouth-sealed portion 12 of connection.
It is specifically side wall both sides Bailey truss is fixed to drawing steel bar and connecting steel bar, and connects steel bar
Side wall is not penetrated, so as to not form through hole, and then is ensured between inside and outside mould holder without being directly connected to part, it is ensured that pour first-class whole
Without perforation on individual side wall, side wall seepage problem is thoroughly solved.
The Bailey truss includes multigroup beret truss group, and every group of beret truss group includes two panels and set perpendicular to exterior sheathing and logical
The connected beret truss 21 of framework is crossed, described pair of drawing steel bar is arranged in the gap between adjacent beret truss group.
The characteristics of bearing larger stress because of Bailey beam and deformed compared with small deflection, is carried on the back by the use of Bailey beam as outer mould holder
It is stupefied, by can effectively solve stupefied support is present outside existing H profile steel installation, support strength to being fixed above and below shellfish thunder two and ask
Topic, reduces current sidewalk on the outside of construction input cost, and casing more spacious.
Embodiment two：
It is unlike the embodiments above be between the adjacent beret truss group at least provided with about two be arranged in parallel to draw
Steel bar, up and down two to draw steel bar structure it is more firm, pour or beret truss group combination when stress it is more balanced, twisting resistance is strong.Institute
State provided with controlling away from cushion block 51 at the top of exterior sheathing, it is underlying to be against to drawing steel bar to be located at located at the control away from cushion block top or pad
The control is away from the top of cushion block.
It is easy to the height and position of control docking steel bar away from cushion block by controlling, so that it is guaranteed that will not be by drawing when pouring tunnel top
Steel bar is embedded to, and is easy to pour again, while also allowing for location and installation to drawing steel bar.
Embodiment three：
It is unlike the embodiments above be between the adjacent beret truss group provided with about two be arranged in parallel to drawing steel bar,
Gap of the described pair of drawing steel bar through the adjacent beret truss group is simultaneously stretched out on the outside of the Bailey truss, and two to drawing
Steel bar is each bolted with a positive stop strip on Bailey truss part, and the positive stop strip turns down to form back hook portion to beret truss side
41, described pair of drawing steel bar restocking, which is provided with to be used to positioning two and have draw steel bar and middle part, can be caught in the embedding of described pair of drawing steel bar
The bundle group parts of groove 62, described time hook portion is set around in the bundle group parts outside wall surface.
Positive stop strip is used to prevent bundle group parts abjection, so that bundle group parts reach the effect of more firm steel bar.
The bundle group parts include the frame block main body 61 with the open caulking groove in bottom, being hinged at the top of frame block main body
Axle 63, the positioning being articulated with jointed shaft are around block, and the frame block main body side, which is offered, can hold positioning around block insertion frame block main body
And clasp described pair of drawing steel bar lead caulking groove 64.
The positioning is transferred to the described pair of drawing steel bar of correspondence of the inner side after caulking groove of leading around block and is provided with along to drawing steel bar length
Positioning groove 65 that direction is set and open at both ends, the groove depth of the positioning groove is more than the diameter of described pair of drawing steel bar.
Then the first frame of frame block main body to top is put down into positioning around block to drawing on steel bar during installation, and so that two are right
Steel bar is drawn not only to be embedded in caulking groove simultaneously and positioned at positioning in two positioning grooves of block, so as to two to drawing steel bar to enter
Row fixed point location is fixed.
Also integrally connected projection is provided with the interlocking with pin-and-hole between the positioning is located at two to drawing steel bar on the inside of block
Communicated in portion 66, the frame block main body with the caulking groove of leading provided with the locked groove docked with the lock-joining part, the locked groove is only tool
Have towards lead that caulking groove side is open or bottom with it is described towards correspondence in the open end seal groove in caulking groove side, the frame block main body is led
Pin-and-hole on lock-joining part is offered along to drawing steel bar length direction to wearing the pin-and-hole of the frame block main body, the frame block main body and institute
State lock-joining part detachably affixed by being inserted in the pin on the pin-and-hole, the frame block main body width is more than adjacent beret truss group
Between gap width, described time hook portion, which extends to beret truss and exceed the frame of the beret truss and turn back, is buckled in the beret truss
Frame on, at least top is provided with frame in the frame edge in described time hook portion on the frame block main body outer side surface, and the frame is the bottom of along
Face is flushed with the groove top surface of highly immediate positioning groove.
The setting of said structure can precisely strong fix be to drawing steel bar, and when pouring or beret truss group is combined, stress is more equal
Weighing apparatus, twisting resistance is strong, while also can guarantee that easy to assemble between steel bar and beret truss to drawing, can guarantee that again has enough lead to beret truss
Make and use.And also there is restraining function between different beret truss groups so that between ensureing beret truss group when pouring stress equalization,
It is difficult transposition, it is ensured that exterior sheathing is smooth, so as to ensure that the side wall poured is smooth, precision is high, and controllability up to standard is strong.
Described connection steel bar the inner, which is at least fixed with one group, is used for direction on the anchor plate and nut of anticreep, the anchor plate
Hangnail is additionally provided with the side of connection steel bar outer end；The side wall root thickness is 100 ~ 120cm, and the connection steel bar is embedded in advance
The length of part in the side wall root is 70 ~ 85 cm, and the length for stretching out the part of the side wall root is 10 ~ 20 cm.
When pouring underplate concrete, by between setting in the side wall root poured on the outside of bottom plate side wall together with bottom plate
Away from the pre-buried fining twisted steels of PSB830 φ 25, pre-buried fining twisted steel length is 90cm, wherein embedment side wall length is 80cm
（100~120cm of side wall thickness）, exposed parts are 10cm, embedment sidewall section tail end need to install the thick anchor plates of 12*12*2cm and
Nut.After underplate concrete intensity reaches the 80% of design load, Bailey truss is set up, Bailey truss uses double individual layer shellfish thunder
Piece is constituted, and is connected between every group of beret truss with 900mm frameworks, and top is using 2 fining twisted steels of PSB830 φ 25 to drawing, two
Bar fining twisted steel can on ground, well frame gets on again with bundle group parts group in advance, and group can also be showed on Bailey truss, is located at
The fining twisted steel of lower section sets height to be located at concrete roof top surface above 300mm, is highly adjusted by controlling away from cushion block, and
Fining twisted steel elongation strain amount is controlled by prestretching, the fining twisted steel being embedded in when bottom is using bottom slab concreting in side wall is matched somebody with somebody
Fixed with supporting bolt.Exterior sheathing and inner template use 2 × 1.5m set shaped steel formworks, and Bailey truss is combined with both exterior sheathings
A stress entirety is assembled into, the external wall formwork construction applied to waters tunnel concrete structure.
Bailey truss must be smooth without deformation, especially master plate side.
Preassembling can be carried out to shellfish thunder by installing before shellfish thunder, emphasis has tight generation after checking Bei Lei junctions insertion pin
Phenomenon is loosened, needs replacing to handle if necessary.The pull bar being located in multigroup beret truss group can be also worn between beret truss group to enter
Fixation between the adjacent beret truss group of row, pulling-rod frame is on framework and being bolted in framework or beret truss.
Claims (10)
1. a kind of waters tunnel is without punching Screw arbor with nut at both-ends formwork erecting structure, it is characterised in that：Including the bottom of the concrete first poured
Plate（1）, build in bottom plate both sides be used for formed outer mould holder, build on bottom plate be used for formed internal model internal mould supporter, point
The exterior sheathing on the inside of outer mould holder and on the outside of internal mould supporter is not fixedly arranged on（5）And inner template, to drawing between outer mould holder and position
Above exterior sheathing to draw steel bar（3）, be also associated between the outer mould holder and the bottom plate one end be embedded in advance in bottom plate,
The other end stretches out the connection steel bar that the bottom plate is connected with the outer mould holder（4）.
2. a kind of waters tunnel is without punching Screw arbor with nut at both-ends formwork erecting structure according to claim 1, it is characterised in that：The external mold
Support is Bailey truss（2）, described pair of drawing steel bar and connection steel bar are fining twisted steel.
3. a kind of waters tunnel is without punching Screw arbor with nut at both-ends formwork erecting structure according to claim 2, it is characterised in that：The bottom plate
Two side roof parts are connected with the side wall root of projection（11）, it is described connection steel bar be embedded in the side wall root and be embedded into advance
The inner of side wall root is to the solid sealing left between the medial surface of the side wall root with side wall root integrally connected
Portion（12）.
4. a kind of waters tunnel is without punching Screw arbor with nut at both-ends formwork erecting structure according to claim 3, it is characterised in that：The shellfish thunder
Truss includes multigroup beret truss group, and every group of beret truss group includes the shellfish thunder that two panels sets perpendicular to exterior sheathing and is connected by framework
Piece（21）, described pair of drawing steel bar be arranged in the gap between adjacent beret truss group.
5. a kind of waters tunnel is without punching Screw arbor with nut at both-ends formwork erecting structure according to claim 4, it is characterised in that：It is adjacent described
Between beret truss group at least provided with about two be arranged in parallel to drawing at the top of steel bar, the exterior sheathing provided with control away from cushion block
（51）, it is underlying to be against the control away from the top of cushion block away from cushion block top or pad located at described control to drawing steel bar to be located at.
6. a kind of waters tunnel is without punching Screw arbor with nut at both-ends formwork erecting structure according to claim 5, it is characterised in that：It is adjacent described
Between beret truss group provided with about two be arranged in parallel to drawing steel bar, described pair of drawing steel bar pass through the adjacent beret truss group it
Between gap and stretch out on the outside of the Bailey truss, and two to drawing steel bar to be each bolted with one on Bailey truss part
Positive stop strip, the positive stop strip turns down to form back hook portion to beret truss side（41）, described pair of drawing steel bar restocking, which is provided with, to be used to position
Two to draw steel bar and middle part have can be caught in the caulking groove of described pair of drawing steel bar（62）Bundle group parts, described time hook portion winding
In in the bundle group parts outside wall surface.
7. a kind of waters tunnel is without punching Screw arbor with nut at both-ends formwork erecting structure according to claim 6, it is characterised in that：The bundle group
Part includes the frame block main body with the open caulking groove in bottom（61）, jointed shaft at the top of frame block main body（63）, be articulated with
Positioning on jointed shaft around block, the frame block main body side offer can hold positioning around block be embedded in frame block main body and clasp it is described right
That draws steel bar leads caulking groove（64）.
8. a kind of waters tunnel is without punching Screw arbor with nut at both-ends formwork erecting structure according to claim 7, it is characterised in that：The positioning
The described pair of drawing steel bar of correspondence of the inner side after caulking groove of leading is transferred to around block to be provided with along set drawing steel bar length direction and two ends
Open positioning groove（65）, diameter of the groove depth more than described pair of drawing steel bar of the positioning groove.
9. a kind of waters tunnel is without punching Screw arbor with nut at both-ends formwork erecting structure according to claim 8, it is characterised in that：The positioning
Also integrally connected projection is provided with the lock-joining part with pin-and-hole between being located at two on the inside of block to drawing steel bar（66）, the frame block master
Communicated in vivo with the caulking groove of leading provided with the locked groove docked with the lock-joining part, the locked groove is only there is direction to lead caulking groove side
Open or bottom towards the pin-and-hole led in the open end seal groove in caulking groove side, the frame block main body on the correspondence lock-joining part with opening
Provided with along to drawing steel bar length direction to wearing the pin-and-hole of the frame block main body, the frame block main body is with the lock-joining part by plugging
Detachably affixed in the pin on the pin-and-hole, the frame block main body width is more than gap width, institute between adjacent beret truss group
State back hook portion and extend to beret truss and exceed the frame of the beret truss and turn back and be buckled on the frame of the beret truss, the frame
On block main body outer side surface at least top provided with frame in the frame edge in described time hook portion, the frame along bottom surface with it is highly immediate
The groove top surface of positioning groove is flushed.
10. a kind of waters tunnel is without punching Screw arbor with nut at both-ends formwork erecting structure according to claim 3, it is characterised in that：The company
Steel bar the inner is connect at least to be fixed with one group of anchor plate and nut for anticreep, the anchor plate towards connection steel bar outer end
Hangnail is additionally provided with side；The side wall root thickness is 100 ~ 120cm, and the connection steel bar is embedded in the side wall root in advance
The length of part be 70 ~ 85 cm, the length for stretching out the part of the side wall root is 10 ~ 20 cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710449904.6A CN107119717B (en) | 2017-06-15 | 2017-06-15 | No-through opposite-pulling screw rod formwork structure for water area tunnel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710449904.6A CN107119717B (en) | 2017-06-15 | 2017-06-15 | No-through opposite-pulling screw rod formwork structure for water area tunnel |
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| CN107119717A true CN107119717A (en) | 2017-09-01 |
| CN107119717B CN107119717B (en) | 2023-02-28 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110735449A (en) * | 2019-10-29 | 2020-01-31 | 中国十七冶集团有限公司 | bottom-penetrating type large-section pipe gallery shrinkage method construction method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110735449A (en) * | 2019-10-29 | 2020-01-31 | 中国十七冶集团有限公司 | bottom-penetrating type large-section pipe gallery shrinkage method construction method |
| CN110735449B (en) * | 2019-10-29 | 2021-04-13 | 中国十七冶集团有限公司 | Down-through type large-section pipe gallery reduction method construction method |
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| CN107119717B (en) | 2023-02-28 |
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