CN111305262A - Construction method for tool type formwork on single side of comprehensive pipe gallery - Google Patents
Construction method for tool type formwork on single side of comprehensive pipe gallery Download PDFInfo
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- CN111305262A CN111305262A CN202010111818.6A CN202010111818A CN111305262A CN 111305262 A CN111305262 A CN 111305262A CN 202010111818 A CN202010111818 A CN 202010111818A CN 111305262 A CN111305262 A CN 111305262A
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- 238000010276 construction Methods 0.000 title claims abstract description 65
- 238000009415 formwork Methods 0.000 title claims abstract description 16
- 239000000463 material Substances 0.000 claims abstract description 13
- 229910000831 Steel Inorganic materials 0.000 claims description 19
- 239000010959 steel Substances 0.000 claims description 19
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims description 7
- 238000003466 welding Methods 0.000 claims description 5
- 210000000078 claw Anatomy 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 4
- 239000004568 cement Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 claims description 3
- 239000004744 fabric Substances 0.000 claims description 3
- 230000001681 protective effect Effects 0.000 claims description 3
- 238000009412 basement excavation Methods 0.000 abstract description 5
- 230000007306 turnover Effects 0.000 abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 3
- 210000003205 muscle Anatomy 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 230000003014 reinforcing effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009440 infrastructure construction Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000011120 plywood Substances 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
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Classifications
-
- 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
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G11/00—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs
- E04G11/06—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs for walls, e.g. curved end panels for wall shutterings; filler elements for wall shutterings; shutterings for vertical ducts
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G17/00—Connecting or other auxiliary members for forms, falsework structures, or shutterings
- E04G17/001—Corner fastening or connecting means for forming or stiffening elements
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G17/00—Connecting or other auxiliary members for forms, falsework structures, or shutterings
- E04G17/14—Bracing or strutting arrangements for formwalls; Devices for aligning forms
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- General Engineering & Computer Science (AREA)
- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
Abstract
The invention relates to a construction method of a tool type template on one side of a comprehensive pipe gallery, which comprises the following construction steps: pre-burying a tie bar of the ground anchor; construction method pile construction; constructing a waterproof layer; constructing a single-side tool type template; pouring concrete; and (4) dismantling the supporting system. According to the construction method of the tool type template on the single side of the comprehensive pipe gallery, the operation space of the pipe gallery is reduced, the earth excavation amount can be reduced, the material turnover amount is saved, the quality and the safety are improved, the site construction progress is accelerated, and the problem that the construction site is narrow during the construction of the pipe gallery is solved; one side of the gallery close to the support pile is provided with the unilateral tool type template, and a wall-through screw rod is not needed to be arranged when the main structure of the pipe gallery is constructed by a formwork, so that the construction is simple, and the rigidity and the water resistance of the main structure are greatly enhanced; the invention utilizes the tool type template, can directly and integrally carry out lifting, mounting and dismounting after the assembly is finished, and greatly reduces the operation time of workers.
Description
Technical Field
The invention belongs to the technical field of buildings, and particularly relates to a construction method of a tool type formwork on one side of a comprehensive pipe gallery.
Background
The infrastructure construction ability of china is first-class in the world, this not only derives from china's attention to infrastructure, also return to fight work and wisdom of an plumber's people on infrastructure, utility tunnel foundation ditch excavation form is mostly perpendicular excavation, general piping lane is located the foundation ditch intermediate position, enough operating space is all reserved to both sides, it is less with piping lane major structure width to differ when foundation ditch excavation width, unsatisfied both sides are all when constructing according to normal formwork, need adopt the piping lane outside to press close to a fender pile, the form of using unilateral formwork satisfies the construction requirement.
The existing comprehensive pipeline unilateral formwork support usually adopts a steel pipe bent frame as a support system, and a large amount of steel pipes are needed for one-time formwork support, so that the construction period is long, the construction mode is complicated, and the cost is high. Therefore, it is necessary to provide a method for single-side formwork of a comprehensive pipe gallery, which can reduce the construction difficulty and reduce the manual operation time.
Disclosure of Invention
In order to overcome the problems in the background art, the invention provides a construction method of a single-side tool type template of a comprehensive pipe gallery, which reduces the difficulty of formwork supporting construction, shortens the construction period, reduces the cost and saves the material turnover amount by using the single-side tool type template which is convenient to splice and disassemble.
In order to realize the purpose, the invention is realized by the following technical scheme:
a construction method of a tool type template on one side of a comprehensive pipe gallery comprises the following construction steps:
s1, pre-embedding tie bars of ground anchors
The anchor tie bars are pre-embedded before concrete is poured on a pipe gallery bottom plate, the distance between pre-embedded parts is 500mm, the anchor tie bars are pre-embedded according to the specified quantity, the embedded parts are arranged on the same straight line after paying off, the anchor tie bars are welded on the reinforcing steel bars of the pipe gallery bottom plate, spot welding is needed at the intersection of two layers of transverse bars, the anchor tie bars are pre-embedded to ensure that the turning wire parts of the anchor tie bars are completely exposed out of the concrete, protective measures are taken for threads before pre-embedding, and the anchor tie bars are wrapped by plastic cloth and are firmly tied;
s2, construction of the pile
The method comprises the following steps of (1) adopting the SMW construction method piles as engineering supporting structures, determining the positions of the construction method piles according to a design drawing, and completing construction of the SMW construction method piles;
s3, waterproof layer construction
According to a design construction drawing, constructing a waterproof water-stabilizing layer on a pile in a construction method by using a coiled material waterproof layer, and reversely pasting the waterproof layer on the water-stabilizing layer;
s4, construction of a unilateral tool type template
The single-side tool type formwork system comprises a plurality of supporting frames and panels, wherein each supporting frame comprises a transverse back edge and a vertical back edge, the transverse back edges and the vertical back edges are connected through connecting claws, a plurality of vertical back edges are arranged below the transverse back edges at equal intervals, the two transverse back edges are connected through core belts, an adjustable base is arranged at the bottom of each supporting frame and is in threaded fit with a ground anchor tie bar, a standard knot is arranged in the middle of each supporting frame, a reinforcing steel pipe is arranged on the outer side of each supporting frame, the panels are made of wood-cement boards, and the panels are connected with the vertical back edges through nails;
s5. concrete pouring
Before the template is erected, whether the waterproof coiled material is firmly fixed or not is checked, layered pouring is carried out, and the pouring height is not higher than 0.3m each time; when the pouring height of the concrete is more than 2 meters, the material is discharged by adopting a string barrel, and the concrete is poured to the middle position of the water-stopping steel plate, so that the waterproof effect is ensured;
s6, dismantling the supporting system
And sequentially disassembling nuts connected with the pre-buried ground anchor tie bars, disassembling the reinforced steel pipes and the template fasteners, and lifting away the unilateral bracket.
Preferably, the ground anchor tie bar, the butterfly nut and the nut washer form a ground anchor system and are matched with the adjustable base, the ground anchor tie bar is made of C25 thread steel, and the end head of the ground anchor tie bar is threaded into D20 mm.
Preferably, in S4, the dimensions of the basic cells in the single-sided tool-type template system are 2000mm × 2700mm and 2000mm × 2400mm, and the panel specification is 1800 × 900 × 15 mm.
Preferably, the transverse back edge is formed by two 12# channel steel in a back-to-back mode, the vertical back edge adopts a 20# wooden H-beam, and the horizontal distance between the vertical back edges is 260 mm.
Preferably, when the panel splicing time interval is less than 200mm, the seam splicing templates are added, and the core belt is used for pressing the seam splicing templates so that the seam splicing is tight and does not stagger.
The invention has the beneficial effects that: according to the invention, the unilateral tool type template is adopted for construction, the operation space of the pipe gallery is reduced, the earth excavation amount can be reduced, the material turnover amount is saved, the overall appearance of the frame body is neat and attractive, the pipe gallery main body is smooth and attractive after the template is removed, and the engineering image is improved; the wall-through screw rod is not needed, the construction is simple, and the rigidity and the water resistance of the main structure are enhanced; and the whole dismouting and handling reduce manual operation time, shorten the time limit for a project.
Drawings
FIG. 1 is a schematic flow chart of the construction method of the present invention;
FIG. 2 is a schematic diagram of a seam structure when the formworks are directly butted in the connection of the formwork channel steels;
FIG. 3 is a schematic diagram of a seam structure when a seam template is added in the connection of template channel steel;
FIG. 4 is a schematic view of the transverse back edge and core belt mounting structure of the present invention;
FIG. 5 is a schematic view of a single side stand assembly according to the present invention;
FIG. 6 is a schematic diagram of a standard section structure according to the present invention;
FIG. 7 is a high level structural view of the present invention;
FIG. 8 is a schematic view of a fastener of the present invention;
FIG. 9 shows a single side frame of the main structure of one side of the pile depending on the construction method of the present invention.
In the figure, 1. core band; 2. transverse back ridges; 3. vertical back ridges; 4. a pipe gallery; 5. a waterproof layer; 6, carrying out SMW construction method piles; 7. a unilateral bracket; 8. a standard section; 9. an adjustable base; 10. and (5) reinforcing the steel pipe.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings to facilitate understanding of the skilled person.
A construction method of a tool type template on one side of a comprehensive pipe gallery comprises the following construction steps:
s1, pre-embedding tie bars of ground anchors
The anchor tie bars are pre-embedded before concrete is poured on a pipe gallery bottom plate, the distance between pre-embedded parts is 500mm, the anchor tie bars are pre-embedded according to the specified quantity, the embedded parts are arranged on the same straight line after paying off, the anchor tie bars are welded on the reinforcing steel bars of the pipe gallery bottom plate, spot welding is needed at the intersection of two layers of transverse bars, the anchor tie bars are pre-embedded to ensure that the turning wire parts of the anchor tie bars are completely exposed out of the concrete, protective measures are taken for threads before pre-embedding, and the anchor tie bars are wrapped by plastic cloth and are firmly tied;
s2, construction of the pile
The method comprises the following steps of (1) adopting the SMW construction method piles as engineering supporting structures, determining the positions of the construction method piles according to a design drawing, and completing construction of the SMW construction method piles;
s3, waterproof layer construction
According to a design construction drawing, constructing a waterproof water-stabilizing layer on a pile in a construction method by using a coiled material waterproof layer, and reversely pasting the waterproof layer on the water-stabilizing layer;
s4, construction of a unilateral tool type template
The single-side tool type formwork system comprises a plurality of supporting frames and panels, wherein each supporting frame comprises a transverse back edge and a vertical back edge, the transverse back edges and the vertical back edges are connected through connecting claws, a plurality of vertical back edges are arranged below the transverse back edges at equal intervals, the two transverse back edges are connected through core belts, an adjustable base is arranged at the bottom of each supporting frame and is in threaded fit with a ground anchor tie bar, a standard knot is arranged in the middle of each supporting frame, a reinforcing steel pipe is arranged on the outer side of each supporting frame, the panels are made of wood-cement boards, and the panels are connected with the vertical back edges through nails;
s5. concrete pouring
Before the template is erected, whether the waterproof coiled material is firmly fixed or not is checked, layered pouring is carried out, and the pouring height is not higher than 0.3m each time; when the pouring height of the concrete is more than 2 meters, the material is discharged by adopting a string barrel, and the concrete is poured to the middle position of the water-stopping steel plate, so that the waterproof effect is ensured;
s6, dismantling the supporting system
And sequentially disassembling nuts connected with the pre-buried ground anchor tie bars, disassembling the reinforced steel pipes and the template fasteners, and lifting away the unilateral bracket.
During the concrete operation, at first, carry out pre-buried of earth anchor drawknot muscle, with earth anchor drawknot muscle pre-buried before piping lane bottom plate concreting, and the built-in fitting is interval 500mm, pre-buried according to regulation quantity, and ensure to establish after the unwrapping wire and bury the piece on same straight line, the welding of earth anchor drawknot muscle is on piping lane bottom plate reinforcing bar, need spot welding in the crossing department of two-layer horizontal muscle, the earth anchor drawknot muscle adopts C25 deformed steel, the end car silk becomes D20mm, when pre-buried, it all exposes outside the concrete to guarantee its car silk part, and wrap up and tie firmly with the plastic sheeting for the screw thread before pre-buried, in order to protect the screw thread not to receive the influence of concreting. The ground anchor tie bar, the butterfly nut and the nut gasket form a ground anchor system, and the detachable installation of the adjustable base under the support frame can be realized through the nut gasket and the butterfly nut.
Secondly, an SMW construction method pile is used as a supporting structure of the pipe gallery, a waterproof layer is constructed on the construction method pile, then a single-side tool type template is erected, the single-side tool type template system comprises a plurality of basic units formed by supporting frames and panels, the size of the basic units is 2000mm multiplied by 2700mm and 2000mm multiplied by 2400mm, and the supporting frames are connected through core belts; the support frame comprises a transverse back edge and a vertical back edge, the transverse back edge is formed by two 12# channel steel in a back-to-back mode, the vertical back edge adopts a 20# wooden H-shaped beam, the transverse back edge and the vertical back edge are connected by adopting a connecting claw, a plurality of vertical back edges are arranged below the transverse back edge at equal intervals, the horizontal interval of the vertical back edges is 260mm, the two transverse back edges are connected by adopting a core belt, the maximum interval of the transverse back edge is 1200 mm, an adjustable base is arranged at the bottom of the support frame and is in threaded fit with a ground anchor tie bar, a standard knot is arranged in the middle of the support frame, a heightening knot is arranged if necessary and is connected by a fastener, and a reinforcing steel pipe is arranged on the outer side of the support frame; the panel adopts wood plywood, and the specification is 1800X 900X 15mm, and the panel adopts the nail to be connected with vertical stupefied on the back of the body, when the panel concatenation interval is less than 200mm, increases the piece template, pushes down the piece template with the core area so that the piece is tight not wrong platform.
Finally, pouring concrete in a layered pouring mode, wherein the pouring height of each time is not higher than 0.3 m; when the concrete pouring height is larger than 2 m, the tandem barrel is adopted for blanking, the concrete pouring needs to be poured to the middle position of the water stop steel plate, after pouring maintenance, the supporting system is dismantled, nuts, template fasteners, connecting steel pipes and the like which are connected with the ground anchor tie bars are dismantled, and the supporting frame is integrally removed for next use.
The triangular support unit is formed by the transverse back edges, the vertical back edges, the connecting pieces and the like, all units are longitudinally connected into a whole through the core belt, and the bottom surface of the unit is connected with the ground anchor tie bars, so that the stress of the support frame is changed from single body stress into integral stress, the stability of a support system is improved, the difficulty of formwork construction is reduced, the construction period is shortened, the cost is reduced, and the material turnover quantity is saved.
Finally, it is noted that the above-mentioned preferred embodiments illustrate rather than limit the invention, and that, although the invention has been described in detail with reference to the above-mentioned preferred embodiments, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the scope of the invention as defined by the appended claims.
Claims (5)
1. The utility model provides a utility tunnel unilateral instrument formula template construction method which characterized in that, includes the following construction steps:
s1, pre-embedding tie bars of ground anchors
The anchor tie bars are pre-embedded before concrete is poured on a pipe gallery bottom plate, the distance between pre-embedded parts is 500mm, the anchor tie bars are pre-embedded according to the specified quantity, the embedded parts are arranged on the same straight line after paying off, the anchor tie bars are welded on the reinforcing steel bars of the pipe gallery bottom plate, spot welding is needed at the intersection of two layers of transverse bars, the anchor tie bars are pre-embedded to ensure that the turning wire parts of the anchor tie bars are completely exposed out of the concrete, protective measures are taken for threads before pre-embedding, and the anchor tie bars are wrapped by plastic cloth and are firmly tied;
s2, construction of the pile
The method comprises the following steps of (1) adopting the SMW construction method piles as engineering supporting structures, determining the positions of the construction method piles according to a design drawing, and completing construction of the SMW construction method piles;
s3, waterproof layer construction
According to a design construction drawing, constructing a waterproof water-stabilizing layer on a pile in a construction method by using a coiled material waterproof layer, and reversely pasting the waterproof layer on the water-stabilizing layer;
s4, construction of a unilateral tool type template
The single-side tool type formwork system comprises a plurality of supporting frames and panels, wherein each supporting frame comprises a transverse back edge and a vertical back edge, the transverse back edges and the vertical back edges are connected through connecting claws, a plurality of vertical back edges are arranged below the transverse back edges at equal intervals, the two transverse back edges are connected through core belts, an adjustable base is arranged at the bottom of each supporting frame and is in threaded fit with a ground anchor tie bar, a standard knot is arranged in the middle of each supporting frame, a reinforcing steel pipe is arranged on the outer side of each supporting frame, the panels are made of wood-cement boards, and the panels are connected with the vertical back edges through nails;
s5. concrete pouring
Before the template is erected, whether the waterproof coiled material is firmly fixed or not is checked, layered pouring is carried out, and the pouring height is not higher than 0.3m each time; when the pouring height of the concrete is more than 2 meters, the material is discharged by adopting a string barrel, and the concrete is poured to the middle position of the water-stopping steel plate, so that the waterproof effect is ensured;
s6, dismantling the supporting system
And sequentially disassembling nuts connected with the pre-buried ground anchor tie bars, disassembling the reinforced steel pipes and the template fasteners, and lifting away the unilateral bracket.
2. The utility model discloses a utility tunnel unilateral instrument formula template construction method of claim 1 which characterized in that: the ground anchor tie bar, the butterfly nut and the nut gasket form a ground anchor system and are matched with the adjustable base, the ground anchor tie bar is made of C25 thread steel, and the end head of the ground anchor tie bar is turned into D20 mm.
3. The utility model discloses a utility tunnel unilateral instrument formula template construction method of claim 1 which characterized in that: in S4, the sizes of the basic units in the single-sided tool type template system are 2000mm multiplied by 2700mm and 2000mm multiplied by 2400mm, and the panel specification is 1800 mm multiplied by 900 mm multiplied by 15 mm.
4. The utility model discloses a utility tunnel unilateral instrument formula template construction method of claim 1 which characterized in that: the horizontal back arris is that two 12# channel-section steels constitute back to back, and vertical back arris adopts 20# wooden word roof beam, and vertical back arris horizontal spacing is 260 mm.
5. The utility model discloses a utility tunnel unilateral instrument formula template construction method of claim 1 which characterized in that: when the panel splicing time interval is less than 200mm, the seam splicing templates are added, and the core belt is used for pressing the seam splicing templates so that the seam splicing is tight and is not staggered.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010111818.6A CN111305262A (en) | 2020-02-24 | 2020-02-24 | Construction method for tool type formwork on single side of comprehensive pipe gallery |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010111818.6A CN111305262A (en) | 2020-02-24 | 2020-02-24 | Construction method for tool type formwork on single side of comprehensive pipe gallery |
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| CN111305262A true CN111305262A (en) | 2020-06-19 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111706077A (en) * | 2020-06-24 | 2020-09-25 | 中铁十六局集团北京轨道交通工程建设有限公司 | Assembled side wall template system |
| CN112814370A (en) * | 2020-12-31 | 2021-05-18 | 中建八局第一建设有限公司 | Construction method for formwork supporting protection device |
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2020
- 2020-02-24 CN CN202010111818.6A patent/CN111305262A/en active Pending
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| CN201165756Y (en) * | 2007-12-25 | 2008-12-17 | 北京卓良模板有限公司 | Single side wall moulding board apparatus |
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| JP2012102460A (en) * | 2010-11-05 | 2012-05-31 | Taiyo Kaihatsu Co Ltd | Form support system and construction method for underground structure using the same |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111706077A (en) * | 2020-06-24 | 2020-09-25 | 中铁十六局集团北京轨道交通工程建设有限公司 | Assembled side wall template system |
| CN112814370A (en) * | 2020-12-31 | 2021-05-18 | 中建八局第一建设有限公司 | Construction method for formwork supporting protection device |
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