CN109667597A - Tunnel hat brim type portal building method - Google Patents
Tunnel hat brim type portal building method Download PDFInfo
- Publication number
- CN109667597A CN109667597A CN201811631714.7A CN201811631714A CN109667597A CN 109667597 A CN109667597 A CN 109667597A CN 201811631714 A CN201811631714 A CN 201811631714A CN 109667597 A CN109667597 A CN 109667597A
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- CN
- China
- Prior art keywords
- template
- tunnel
- trolley
- pattern plate
- building method
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 19
- 238000009415 formwork Methods 0.000 claims abstract description 29
- 238000004080 punching Methods 0.000 claims abstract description 17
- 238000005266 casting Methods 0.000 claims abstract description 14
- 239000004744 fabric Substances 0.000 claims abstract description 10
- 238000005259 measurement Methods 0.000 claims abstract description 9
- 210000003205 muscle Anatomy 0.000 claims abstract description 9
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 8
- 230000002787 reinforcement Effects 0.000 claims description 6
- 239000004570 mortar (masonry) Substances 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 abstract description 2
- 238000010276 construction Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000015271 coagulation Effects 0.000 description 2
- 238000005345 coagulation Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000011218 segmentation Effects 0.000 description 2
- 238000007596 consolidation process Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003447 ipsilateral effect Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000009870 specific binding Effects 0.000 description 1
- 238000004078 waterproofing Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/14—Layout of tunnels or galleries; Constructional features of tunnels or galleries, not otherwise provided for, e.g. portals, day-light attenuation at tunnel openings
-
- 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
- E21D11/04—Lining with building materials
- E21D11/10—Lining with building materials with concrete cast in situ; Shuttering also lost shutterings, e.g. made of blocks, of metal plates or other equipment adapted therefor
- E21D11/105—Transport or application of concrete specially adapted for the lining of tunnels or galleries ; Backfilling the space between main building element and the surrounding rock, e.g. with concrete
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Structural Engineering (AREA)
- Architecture (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Civil Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Lining And Supports For Tunnels (AREA)
Abstract
The invention discloses a kind of tunnel hat brim type portal building methods, are related to tunnel portal masonry technology field, trolley is moved to tunnel face, the size of trolley formwork bared end at tunnel face is determined according to portal width requirement；One-point measurement is carried out on trolley formwork, and measured fixed position is subjected to snap the line, as mark line；Cloth muscle installs reinforcing bar, including circular bar and longitudinal rib according to the mark line, relatively fixed by tying up silk between the circular bar and longitudinal rib；Supporting module, including front template, rear pattern plate and top template, the front template and rear pattern plate are punching block, and the top template is wooden model；It reinforces, front template, rear pattern plate and top template is carried out to the fixation of position；Top wooden model opening, then casting concrete, makes concrete full of entire template inner cavity, each template is removed after concrete setting and removes trolley.Completion rapidly and efficiently is intended to the disposable one-piece casting of portal, cost of labor is reduced, increases speed of application.
Description
Technical field
The present invention relates to tunnel portal masonry technology field, especially a kind of tunnel hat brim type portal building method.
Background technique
Railway large-bore tunnel oval-shaped table-board cap brim bias-cutting type hole-door can effectively make the distinguished and admirable circulation in tunnel, make tunnel
Windage substantially reduces in road, and good appearance is practical, the existing one-piece casting for pouring means and being unfavorable for portal, efficiency compared with
It is low, and effect is poor, and progress is slow；Repeated measurement setting-out, formwork erection and reinforcing are needed, and formwork erection consolidation time is long, manually disappears
Consumption is big；Structure size deviation is larger simultaneously, appearance irregularity；Using multiple pouring molding, the quantity of construction joint is increased, afterwards
Increase the water-proofing treatment investment of construction joint.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of tunnel hat brim type portal building methods, it is intended to rapidly and efficiently
The disposable one-piece casting to portal is completed, cost of labor is reduced, increases speed of application.
To solve the above problems, the technical solution adopted by the present invention is that provide a kind of tunnel hat brim type portal building method,
Trolley is moved to tunnel face, the size of trolley formwork bared end at tunnel face is determined according to portal width requirement；
One-point measurement is carried out on trolley formwork, and measured fixed position is subjected to snap the line, as mark line；
Cloth muscle installs reinforcing bar, including circular bar and longitudinal rib according to the mark line, between the circular bar and longitudinal rib
It is relatively fixed by tying up silk；
Supporting module, including front template, rear pattern plate and top template, the front template and rear pattern plate are punching block, the top
Template is wooden model；
It reinforces, front template, rear pattern plate and top template is carried out to the fixation of position；
Top wooden model opening, then casting concrete, makes concrete full of entire template inner cavity, tears open after concrete setting
Template and remove trolley unless each.
Preferably, the one-point measurement includes that reinforcement bar support sets up an office location fixes and formwork erection location fixes, the template
Location fixes are installed as the positioning of portal outer profile, get two rows of fixed points respectively on the car, respectively branch sets up an office on the inside of front template
It sets up an office with branch on the inside of rear pattern plate, a progress snap the line connection is installed to described by ink fountain, obtains the internal and external contour line of door opening, it is described
Internal and external contour line is curved curved line.
Preferably, the reinforcement bar support sets up an office location fixes to be laterally extended circular bar multiple rows of of institute's cloth along door opening and setting up an office,
Every row branch, which sets up an office, to be connected to form circular bar and installs line, and two neighboring circular bar installs the distance between line no more than 15cm, described
Circular bar includes upper layer and lower layer.
Preferably, the longitudinal rib is arranged side by side along the length direction of multiple rows of circular bar and interval is not more than
30cm。
Preferably, the front template and rear pattern plate are spliced by muti-piece punching block, and the punching block is circular formwork, adjacent
Fixation is bolted between two punching blocks, forms whole curved-surface structure.
Preferably, it is positioned between the front template and rear pattern plate by pull rod, the stud passes through the ring
Shape muscle.
Preferably, the supporting module further includes the side form positioned at front template and rear mold board ends, the side form setting with
For sealing the both-side opening between the front and back template on ground, entire template is made to form hollow closed arc cavity.
Preferably, the medial surface of the front template is vertical plane, and the medial surface of the rear pattern plate is the plane being obliquely installed,
The wooden model entirety cloth is set as arc compatible with trolley formwork, and the curved setting of outer ledge of the wooden model.
Preferably, the pull rod sets bilayer, and circumferential spacing is 0.8m, rod outer sleeve pvc pipe, after template and pull rod are removed,
Pvc pipe is blocked with mortar.
Preferably, the top wooden model opening for two and is symmetrical arranged, while being poured into two top wooden model openings
The brim of a hat concrete, after intensity reaches design requirement, form removal.
The beneficial effects of the present invention are, present embodiments provide the brick-building art of tunnel face portal, by front template, after
Template, top plate and side plate overall package form the template chamber for pouring coagulation body, and provide the intracavitary longitudinal rib of template and ring
The laying form of shape muscle, realizes disposable one-piece casting when casting concrete, avoids pouring for segmentation segment type,
Reduce construction joint and be conducive to the integrally formed of portal, also further increases the integral strength and streamlined structure shape of portal
Formula.
Specific embodiment
In order to which technical problems, technical solutions and advantages to be solved are more clearly understood, tie below
Embodiment is closed, the present invention will be described in further detail.It should be appreciated that specific embodiment described herein is only used to solve
The present invention is released, is not intended to limit the present invention.
The present invention will be further described in detail below with reference to specific embodiments:
The embodiment of the invention provides a kind of tunnel hat brim type portal building methods, and trolley is moved to tunnel face, according to
Portal width requirement determines the size of trolley formwork bared end at tunnel face；
One-point measurement is carried out on trolley formwork, and measured fixed position is subjected to snap the line, as mark line；
Cloth muscle installs reinforcing bar, including circular bar and longitudinal rib according to the mark line, between the circular bar and longitudinal rib
It is relatively fixed by tying up silk；
Supporting module, including front template, rear pattern plate and top template, the front template and rear pattern plate are punching block, the top
Template is wooden model；
It reinforces, front template, rear pattern plate and top template is carried out to the fixation of position；
Top wooden model opening, then casting concrete, makes concrete full of entire template inner cavity, tears open after concrete setting
Template and remove trolley unless each.
In the present embodiment, specifically provide the casting craft of portal, specifically, first by trolley along track run to
At portal, the template of trolley is the bottom surface formwork for placing of portal, can be overally supported by trolley, according to the hole to be poured
Door bottom shape, adjusts the position of each template on trolley, makes it that a bottom surface compatible with tunnel face be integrally formed；
It adjusts in trolley formwork enterprising shape fixed point direction after trolley formwork, specifically includes the line setting work of front template and rear pattern plate
Make.
Circular bar and longitudinal rib in the present embodiment be it is monolithic reinforced, reinforcing bar is being carried out prefabricated using preceding, is making to indulge
It is formed to muscle and installs the compatible curvilinear shape of cambered surface with the trolley formwork, circular bar is enclosed shape, specifically
For rectangle or square, four longitudinal ribs is are nested into the circular bar inside casing by specific binding respectively, and specially four
A longitudinal rib is located at four ends angle of circular bar, is then bound.
Further, the one-point measurement includes that reinforcement bar support sets up an office location fixes and formwork erection location fixes, the mould
Plate installs location fixes as the positioning of portal outer profile, gets two rows of fixed points respectively on the car, respectively installs on the inside of front template
Branch sets up an office on the inside of point and rear pattern plate, installs a progress snap the line connection to described by ink fountain, obtains the internal and external contour line of door opening, institute
Stating internal and external contour line is curved curved line.
In the present embodiment, the form of implementation of one-point measurement is specifically provided, the positioning of front and back template determines portal
Front and back shape, by being got ready on trolley formwork, to determine installation position of the front and back template on trolley formwork, specifically
It carries out getting positioning ready by level or total station.
Further, the circular bar that the reinforcement bar support sets up an office location fixes to be laterally extended institute's cloth along door opening is multiple rows of to be installed
Point, every row branch, which sets up an office, to be connected to form circular bar and installs line, and two neighboring circular bar installs the distance between line no more than 15cm, institute
Stating circular bar includes upper layer and lower layer.
Present embodiment specifically provides the positioning method that reinforcement bar support sets up an office, and specific is also to be determined on trolley formwork
Position is got ready, and the position got ready determines the position of longitudinal rib.
Further, the longitudinal rib is arranged side by side along the length direction of multiple rows of circular bar and interval is not more than
30cm。
In present embodiment, the interval of longitudinal rib is not more than 30cm, can effectively meet the intensity requirement of portal, increases
The robustness antidetonation wind resistance of portal moves property, and the reinforcing bar using diameter not less than 25mm is laid, the longitudinal rib one
It is directly arranged along the lateral length direction of trolley formwork, and extends to the both ends of front and back mould, the longitudinal direction of minimum point
Distance of the muscle apart from trolley formwork is greater than 5cm.Form the concrete cover of at least 5cm thickness.
Further, the front template and rear pattern plate are spliced by muti-piece punching block, and the punching block is circular formwork, adjacent
Two punching blocks between be bolted fixation, form whole curved-surface structure.
In present embodiment, front and back template is formed in the form of punching block, so that intensity is higher, it is more stable, according to portal
Arc shape requirement, realization make a reservation for compatible single punching block, then the punching block by multiple prefabricated completions is combined assembly,
Make the forced contact of punching block facing towards the ipsilateral supporting surface formed to casting concrete, this supporting surface forms the outer lateral curvature of portal
Face.
Further, it is positioned between the front template and rear pattern plate by pull rod, the stud passes through described
Circular bar.
Front and back template is carried out using the form of pull rod in present embodiment so that the two is stablized and is fixed, shape drawing
Have the function that reinforce tension at the front and back mould of casting concrete.
Further, the supporting module further includes the side form positioned at front template and rear mold board ends, the side form setting
With, for sealing both-side opening between the front and back template, entire template is made to form hollow closed arc cavity on ground.
Present embodiments provide for side form, side form is installed on ground, and shape is by both front template and rear pattern plate institute shape
At port determine, that is, the both ends of the surface shape of portal.
Further, the medial surface of the front template is vertical plane, the medial surface of the rear pattern plate be obliquely installed it is flat
Face, the wooden model entirety cloth are set as arc compatible with trolley formwork, and the curved setting of outer ledge of the wooden model.
In present embodiment, the shape for installing shape and determining portal front-back of front and back template, make portal head-on be in
Inclined-plane can effectively increase the mobility of wind, reduce windage.
Further, the pull rod sets bilayer, and circumferential spacing is 0.8m, and rod outer sleeve pvc pipe, template and pull rod are removed
Afterwards, pvc pipe is blocked with mortar.
Further, the top wooden model opening for two and is symmetrical arranged, while being poured into two top wooden model openings
Build the brim of a hat concrete, after intensity reaches design requirement, form removal.
The beneficial effects of the present invention are, present embodiments provide the brick-building art of tunnel face portal, by front template, after
Template, top plate and side plate overall package form the template chamber for pouring coagulation body, and provide the intracavitary longitudinal rib of template and ring
The laying form of shape muscle, realizes disposable one-piece casting when casting concrete, avoids pouring for segmentation segment type,
Reduce construction joint and be conducive to the integrally formed of portal, also further increases the integral strength and streamlined structure shape of portal
Formula.
Claims (10)
1. tunnel hat brim type portal building method, it is characterised in that: including
Trolley is moved to tunnel face, the size of trolley formwork bared end at tunnel face is determined according to portal width requirement；
One-point measurement is carried out on trolley formwork, and measured fixed position is subjected to snap the line, as mark line；
Cloth muscle installs reinforcing bar, including circular bar and longitudinal rib according to the mark line, passes through between the circular bar and longitudinal rib
It is relatively fixed to tie up silk；
Supporting module, including front template, rear pattern plate and top template, the front template and rear pattern plate are punching block, the top template
For wooden model；
It reinforces, front template, rear pattern plate and top template is carried out to the fixation of position；
Top wooden model opening, then casting concrete, makes concrete full of entire template inner cavity, removes after concrete setting each
A template simultaneously removes trolley.
2. hat brim type portal building method in tunnel as described in claim 1, it is characterised in that: the one-point measurement includes reinforcing bar
A location fixes and formwork erection location fixes are installed, the formwork erection location fixes are the positioning of portal outer profile, in trolley
Upper to get two rows of fixed points respectively, branch sets up an office respectively on the inside of front template sets up an office with branch on the inside of rear pattern plate, by ink fountain to the branch
It sets up an office and carries out snap the line connection, obtain the internal and external contour line of door opening, the internal and external contour line is curved curved line.
3. hat brim type portal building method in tunnel as claimed in claim 2, it is characterised in that: the reinforcement bar support position that sets up an office is fixed
Point sets up an office for being laterally extended circular bar multiple rows of of institute's cloth along door opening, and every row props up to set up an office and is connected to form circular bar and installs line, adjacent
Two circular bars install the distance between line no more than 15cm, and the circular bar includes upper layer and lower layer.
4. hat brim type portal building method in tunnel as claimed in claim 3, it is characterised in that: the longitudinal rib is along multiple rows of institute
The length direction for stating circular bar is arranged side by side and interval is no more than 30cm.
5. hat brim type portal building method in tunnel as described in claim 1, it is characterised in that: the front template and rear pattern plate by
Muti-piece punching block is spliced, and the punching block is circular formwork, and fixation is bolted between two adjacent punching blocks, is formed whole
Body curved-surface structure.
6. hat brim type portal building method in tunnel as described in claim 1, it is characterised in that: the front template and rear pattern plate it
Between positioned by pull rod, the stud pass through the circular bar.
7. hat brim type portal building method in tunnel as described in claim 1, it is characterised in that: the supporting module further includes position
It is used to seal the two sides between the front and back template on the side form of front template and rear mold board ends, the side form setting and ground
Opening, makes entire template form hollow closed arc cavity.
8. hat brim type portal building method in tunnel as described in claim 1, it is characterised in that: the medial surface of the front template is
Vertical plane, the medial surface of the rear pattern plate are the plane being obliquely installed, and the wooden model entirety cloth is set as being adapted with trolley formwork
Arc, and the curved setting of outer ledge of the wooden model.
9. hat brim type portal building method in tunnel as claimed in claim 7, it is characterised in that: the pull rod sets bilayer, circumferential
Spacing is 0.8m, rod outer sleeve pvc pipe, after template and pull rod are removed, is blocked pvc pipe with mortar.
10. hat brim type portal building method in tunnel as described in claim 1, it is characterised in that: the top wooden model, which is open, is
Two and be symmetrical arranged, while to two top wooden models opening in pour the brim of a hat concrete, after intensity reaches design requirement, remove mould
Plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811631714.7A CN109667597A (en) | 2018-12-29 | 2018-12-29 | Tunnel hat brim type portal building method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811631714.7A CN109667597A (en) | 2018-12-29 | 2018-12-29 | Tunnel hat brim type portal building method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109667597A true CN109667597A (en) | 2019-04-23 |
Family
ID=66146521
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811631714.7A Pending CN109667597A (en) | 2018-12-29 | 2018-12-29 | Tunnel hat brim type portal building method |
Country Status (1)
| Country | Link |
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| CN (1) | CN109667597A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111271085A (en) * | 2020-01-21 | 2020-06-12 | 中铁隧道集团二处有限公司 | Construction method of tunnel portal oblique-cutting hat brim type combined template |
| CN113202181A (en) * | 2021-06-16 | 2021-08-03 | 中建八局第四建设有限公司 | Simple and accurate manufacturing method of arc-shaped edge-sealing template |
| CN117249762A (en) * | 2023-11-13 | 2023-12-19 | 山西一建集团有限公司 | Window opening size deviation construction detection device |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111271085A (en) * | 2020-01-21 | 2020-06-12 | 中铁隧道集团二处有限公司 | Construction method of tunnel portal oblique-cutting hat brim type combined template |
| CN111271085B (en) * | 2020-01-21 | 2022-02-25 | 中铁隧道集团二处有限公司 | Construction method of tunnel portal oblique-cutting hat brim type combined template |
| CN113202181A (en) * | 2021-06-16 | 2021-08-03 | 中建八局第四建设有限公司 | Simple and accurate manufacturing method of arc-shaped edge-sealing template |
| CN117249762A (en) * | 2023-11-13 | 2023-12-19 | 山西一建集团有限公司 | Window opening size deviation construction detection device |
| CN117249762B (en) * | 2023-11-13 | 2024-03-12 | 山西一建集团有限公司 | Window opening size deviation construction detection device |
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Application publication date: 20190423 |