CN108708396A - A kind of the U-shaped channel structure and its installation method of precast assembly - Google Patents
A kind of the U-shaped channel structure and its installation method of precast assembly Download PDFInfo
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- CN108708396A CN108708396A CN201810753184.7A CN201810753184A CN108708396A CN 108708396 A CN108708396 A CN 108708396A CN 201810753184 A CN201810753184 A CN 201810753184A CN 108708396 A CN108708396 A CN 108708396A
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- 238000009434 installation Methods 0.000 title claims abstract description 16
- 238000000034 method Methods 0.000 title claims abstract description 13
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 84
- 239000010959 steel Substances 0.000 claims abstract description 84
- 238000003466 welding Methods 0.000 claims abstract description 30
- 238000005266 casting Methods 0.000 claims abstract description 5
- 230000003014 reinforcing effect Effects 0.000 claims description 7
- 239000000203 mixture Substances 0.000 claims description 6
- 229920005597 polymer membrane Polymers 0.000 claims description 4
- 239000003673 groundwater Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 4
- 238000010276 construction Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 230000015271 coagulation Effects 0.000 description 3
- 238000005345 coagulation Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 239000002689 soil Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 239000002023 wood Substances 0.000 description 2
- 206010054949 Metaplasia Diseases 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000015689 metaplastic ossification Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000005641 tunneling Effects 0.000 description 1
Classifications
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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
-
- 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
- E02D29/16—Arrangement or construction of joints in foundation structures
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D31/00—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
- E02D31/02—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution against ground humidity or ground water
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Hydrology & Water Resources (AREA)
- Lining And Supports For Tunnels (AREA)
Abstract
The invention discloses a kind of U-shaped channel structures of precast assembly, including multiple U-shaped components that can be spliced to form U-shaped channel structure successively, U-shaped component includes prefabricated panel component and prefabricated side wall component, the longitudinal side of prefabricated panel component and prefabricated side wall component is equipped with splicing step, the step surface for splicing step is equipped with pre-embedded steel slab, the splicing step of adjacent U-shaped component constitutes groove after splicing, the pre-embedded steel slab of adjacent U-shaped component is connected by welding steel, the both sides of welding steel are respectively welded in having poured concrete in the surface of adjacent pre-embedded steel slab, groove.The invention also discloses the method for installation U-shaped channel structure, including the assembled prefabricated panel component of lifting, the assembled prefabricated side wall component of lifting, casting concrete and carry out successively next segment lifting it is assembled.The present invention have many advantages, such as it is simple in structure, be easily installed, speed of application is fast, influence small, stress to periphery and good water-proof effect, intersegmental consistency and stability are high.
Description
Technical field
The invention belongs to traffic tunnel design and construction technical field more particularly to a kind of U-shaped channel structures of precast assembly
And its installation method.
Background technology
For traffic tunnel engineering, all there is longer open cut U-shaped structure in ENG land end location.Currently, the country is just
Cast-type is used in the traffic tunnel open cut U-shaped structure majority built or built up, and there is construction in traditional cast-in-place mode
Period is longer, drawbacks, the precast splice type structures such as big, labor intensive is big are influenced on Around environment passes through factory's metaplasia
Production, prefabricated construction, are increasingly widely adopted.
Armored concrete U-shaped structure cross dimensions in traffic tunnel engineering is larger, and linear meter(lin.m.) weight is larger, and tunneling boring is whole
Precast assembly is carried out to there is a problem of transporting and lifting difficulty.How piecemeal spelling is carried out according to component to such open cut U-shaped structure
Dress, can keep the stress globality of former integral cast-in-situ and good waterproof effect, be that such open cut U-shaped structure is pre-
The problem researched and solved is badly in need of in system assembly at present.
Invention content
The technical problem to be solved in the present invention is to overcome the shortcomings of the prior art, provide it is a kind of it is simple in structure, be convenient for
Installation, speed of application is fast, U-shaped channel structure and its installation of the precast assembly of small, stress and good water-proof effect are influenced on periphery
Method.
In order to solve the above technical problems, technical solution proposed by the present invention is：
A kind of U-shaped channel structure of precast assembly, including multiple U-shaped components that can be spliced to form U-shaped channel structure successively,
The U-shaped component includes the prefabricated side wall component of prefabricated panel component and the transverse ends set on the prefabricated panel component, institute
The longitudinal side for stating prefabricated panel component and prefabricated side wall component is equipped with splicing step, is set on the step surface of the splicing step
There are pre-embedded steel slab, the splicing step of the adjacent U-shaped component to constitute groove, the pre-buried steel of the adjacent U-shaped component after splicing
Welding steel is equipped between plate, the both sides of the welding steel are respectively welded in the surface of adjacent pre-embedded steel slab, the adjacent U-shaped
Welding steel between component is welded to each other composition steel plate frame, and concrete has been poured in the groove.
The U-shaped channel structure of above-mentioned precast assembly, it is preferred that the transverse ends of the prefabricated panel component are equipped with bottom
The transverse ends of plate steel bar stress, the prefabricated panel component are also reserved with step, the prefabricated side wall component and prefabricated panel
One end of component connection is equipped with side wall steel bar stress, and the bottom slab stress reinforcing bar is staggered with side wall steel bar stress, described pre-
Base plate member processed has poured concrete with the gap at prefabricated side wall component connector.
The U-shaped channel structure of above-mentioned precast assembly, it is preferred that the prefabricated side wall component is connect with prefabricated panel component
One end be embedded with shaped steel bearing.
The U-shaped channel structure of above-mentioned precast assembly, it is preferred that the shaped steel bearing is set to the prefabricated side wall member end
The position in four corners in face.
The U-shaped channel structure of above-mentioned precast assembly, it is preferred that the prefabricated panel component is set on ground, described pre-
Concrete cushion is equipped between base plate member and ground processed.
The U-shaped channel structure of above-mentioned precast assembly, it is preferred that the prefabricated panel component and prefabricated side wall component it is outer
Side is equipped with the waterproof layer for preventing groundwater seepage.
The U-shaped channel structure of above-mentioned precast assembly, it is preferred that the waterproof layer is self-adhesion polymer membranes.
A method of install above-mentioned precast assembly U-shaped channel structure, include the following steps,
S2, lifting simultaneously splice prefabricated panel component, and the splicing step of contiguous prefabricated base plate member is made to be spliced to form groove, will
It is welded respectively with the pre-embedded steel slab on contiguous prefabricated base plate member the both sides of welding steel；
S3, lifting simultaneously splice prefabricated side wall component, and the splicing step of contiguous prefabricated side wall component is made to be spliced to form groove, will
The both sides of welding steel are welded with the pre-embedded steel slab on contiguous prefabricated side wall component respectively, by the welding steel on prefabricated panel component
The both ends of plate and the end of the welding steel on prefabricated side wall component are welded to form steel plate frame, the steel plate frame being made of welding steel
On seam it is all closed by weld seam, entire steel plate frame be closed sealing；
S4, by the gap, recessed between contiguous prefabricated base plate member at prefabricated panel component and prefabricated side wall component connector
Groove between slot and contiguous prefabricated side wall component is poured with concrete；
The lifting and splicing of S5, the prefabricated panel component for carrying out next segment successively and prefabricated side wall component are completed all
Open cut U-shaped channel structure installation.
Above-mentioned installation method, it is preferred that further include step S1 before step S2,
S1, leveling ground, the casting concrete bed course on ground are laid with waterproof layer in concrete cushion and foundation pit side-wall.
It flattens ground and casting concrete bed course is convenient for assembled prefabricated panel component, improve the splicing accuracy of prefabricated panel component, setting
Waterproof layer can improve integrally-built water resistance.
Above-mentioned installation method, it is preferred that in the step S3 when lifting and splicing prefabricated side wall component 12, use type
Bridle iron is positioned and is supported, while being supported on side using shaped steel or steel pipe or wood and being carried out skewed horizontal load, and prefabricated side is prevented
Wall member 12 is toppled over, convenient for construction.
Compared with the prior art, the advantages of the present invention are as follows：
1. the U-shaped channel structure of the precast assembly of the present invention, including multiple U-shaped components that can splice successively, U-shaped component is again
Including prefabricated panel component and prefabricated side wall component, entire U-shaped channel structure is made of multiple sectional type components, is solved existing
Difficult problem is transported and lifted in technology, convenient for prefabricated, transport and installation.
2. since the longitudinal side of prefabricated panel component and prefabricated side wall component is provided with splicing step, also set on step surface
There is pre-embedded steel slab, after U-shaped component is spliced, adjacent two splicing steps constitute groove, and welding steel is welded in adjacent two
On a pre-embedded steel slab, it is welded to each other composition steel plate frame positioned at identical intersegmental welding steel, welding steel can connect connected section
Seam between section, the steel plate frame of entire welding steel composition U-shaped, to solve integrally-built seam leakage problem,
In addition welding steel can also play the role of connecting the U-shaped component of adjacent segment, be conducive to increase the stability between adjacent segment,
The differential settlement between adjacent segment can effectively be reduced.
3. method using the present invention is easily installed, speed of application is fast, small on periphery influence, and the U-shaped that installation obtains is logical
Road structure stress and good water-proof effect, the adjacent intersegmental consistency and stability of U-shaped component are high.
Description of the drawings
Fig. 1 is the cross-sectional view of the U-shaped channel structure of the present embodiment precast assembly.
Fig. 2 is the structural schematic diagram of the base plate plane of the U-shaped channel structure of the present embodiment precast assembly.
Fig. 3 is the longitudinal spliced sectional view of the prefabricated panel component of the U-shaped channel structure of the present embodiment precast assembly.
Fig. 4 is the longitudinal spliced sectional view of the prefabricated side wall component of the U-shaped channel structure of the present embodiment precast assembly.
Fig. 5 is the transverse cross of the prefabricated panel component of the U-shaped channel structure of the present embodiment precast assembly.
Fig. 6 is the transverse cross of the prefabricated side wall component of the U-shaped channel structure of the present embodiment precast assembly.
Fig. 7 is the partial enlarged view of A in Fig. 1.
Marginal data：
1, U-shaped component；11, prefabricated panel component；111, bottom slab stress reinforcing bar；112, step；12, prefabricated side wall component；
121, side wall steel bar stress；122, shaped steel bearing；2, splice step；3, pre-embedded steel slab；4, groove；5, welding steel；6, coagulation
Soil；7, concrete cushion；8, waterproof layer.
Specific implementation mode
To facilitate the understanding of the present invention, the present invention is done below in conjunction with Figure of description and preferred embodiment more complete
Face meticulously describes, but protection scope of the present invention is not limited to following specific examples.
As shown in Figures 1 to 7, the U-shaped channel structure of the precast assembly of the present embodiment, including multiple can be spliced to form successively
The U-shaped component 1 of U-shaped channel structure, U-shaped component 1 is including prefabricated panel component 11 and set on lateral the two of prefabricated panel component 11
The longitudinal side of the prefabricated side wall component 12 at end, prefabricated panel component 11 and prefabricated side wall component 12 is equipped with splicing step 2, spells
The step surface for connecing step 2 is equipped with pre-embedded steel slab 3, and the splicing step 2 of adjacent U-shaped component 1 constitutes groove 4, adjacent U after splicing
Welding steel 5 is equipped between the pre-embedded steel slab 3 of shape component 1, the both sides of welding steel 5 are respectively welded in adjacent pre-embedded steel slab 3
Surface, the welding steel 5 between adjacent U-shaped component 1 are welded to each other composition steel plate frame, concrete 6 have been poured in groove 4.This reality
It applies example and the bottom plate of U-shaped channel structure and side wall is respectively classified into multiple prefabricated components, then these prefabricated components scene of carrying out is determined
Position is assembled, finally by the post-cast strip concrete for pouring assembled interface, each prefabricated components is connected into complete structure, to protect
The reasonability of structure stress and the reliability of waterproof are demonstrate,proved.
In the present embodiment, the transverse ends of prefabricated panel component 11 are equipped with bottom slab stress reinforcing bar 111, prefabricated panel component
11 transverse ends are also reserved with step 112, and one end that prefabricated side wall component 12 is connect with prefabricated panel component 11 is equipped with side wall
Steel bar stress 121, bottom slab stress reinforcing bar 111 are staggered with side wall steel bar stress 121, prefabricated panel component 11 and prefabricated side wall
The gap of 12 joint of component has poured concrete 6.Step 112 can facilitate prefabricated side wall component 12 and prefabricated panel component 11
Joint carry out concreting, the corner location of total is used bottom slab stress reinforcing bar 111 and side wall steel bar stress
121 forms being staggered, and cast-in-place concrete is attached make U-shaped component 1 form overall structure, then with adjacent segment
U-shaped component 1 be connected, be conducive to structure stress, improve integrally-built stability.
In the present embodiment, one end that prefabricated side wall component 12 is connect with prefabricated panel component 11 is embedded with shaped steel bearing 122.
When lifting and splicing prefabricated side wall component 12, shaped steel bearing 122 can play the role of positioning and support, be conducive to prefabricated side wall
The erection of component 12 is stablized, assembled convenient for structure.
In the present embodiment, shaped steel bearing 122 totally four is divided into the position in four corners of prefabricated 12 end face of side wall component
It sets.In four corner location stress supports convenient for keeping balancing, force structure is also more stable.
In the present embodiment, prefabricated panel component 11 is set on ground, and coagulation is equipped between prefabricated panel component 11 and ground
Soil padding 7.Setting concrete cushion 7 is conducive to the horizontal accurate splicing of 11 holding of prefabricated panel component, avoids because of ground injustice
It adversely affects.
In the present embodiment, the outside of prefabricated panel component 11 and prefabricated side wall component 12, which is equipped with, prevents the anti-of groundwater seepage
Water layer 8.Specifically, waterproof layer 8 is self-adhesion polymer membranes.It is further in integrally-built external 8 energy of setting waterproof layer
Promote the water resistance of U-shaped channel structure entirety.
A method of install above-mentioned precast assembly U-shaped channel structure, include the following steps,
S1, leveling ground, the casting concrete bed course 7 on ground, in smooth, clean, dry foundation pit side-wall and coagulation
7 upper berth of soil padding is set up defences water layer 8, specifically, waterproof layer 8 is self-adhesion polymer membranes；
S2, lifting simultaneously splice prefabricated panel component 11, so that the splicing step 2 of contiguous prefabricated base plate member 11 is spliced to form recessed
Slot 4 welds the both sides of welding steel 5, specifically, can be continuous with the pre-embedded steel slab 3 on contiguous prefabricated base plate member 11 respectively
5 section of lifting or more piece prefabricated panel component 11；
S3, the hoisting prefabricated side wall component 12 of transverse ends in prefabricated panel component 11, using shaped steel bearing 122 to prefabricated
Side wall component 12 is positioned and is supported, while being supported on side using shaped steel or steel pipe or wood and being carried out skewed horizontal load, is prevented pre-
Side wall component 12 processed is toppled over, and prefabricated side wall component 12 is then spliced, and the splicing step 2 of contiguous prefabricated side wall component 12 is made to splice structure
At groove 4, the both sides of welding steel 5 are welded with the pre-embedded steel slab 3 on contiguous prefabricated side wall component 12 respectively, by prefabricated panel
The both ends of welding steel 5 on component 11 and the end of the welding steel 5 on prefabricated side wall component 12 are welded to form U-shaped
Steel plate frame；
S4, by the gap of prefabricated panel component 11 and prefabricated 12 joint of side wall component, contiguous prefabricated base plate member 11 it
Between groove 4 and contiguous prefabricated side wall component 12 between groove 4 poured with the concrete with micro-expanding agent and early strength agent；
The lifting and splicing of S5, the prefabricated panel component 11 for carrying out next segment successively and prefabricated side wall component 12 are completed
The installation of all open cut U-shaped channel structures.
Although the present invention has been disclosed as a preferred embodiment, however, it is not intended to limit the invention.It is any to be familiar with ability
The technical staff in domain, without deviating from the scope of the technical scheme of the present invention, all using the technology contents pair of the disclosure above
Technical solution of the present invention makes many possible changes and modifications, or is revised as the equivalent embodiment of equivalent variations.Therefore, every
Without departing from the content of technical solution of the present invention, according to the present invention technical spirit any simple modification made to the above embodiment,
Equivalent variations and modification, all shall fall within the protection scope of the technical scheme of the invention.
Claims (10)
1. a kind of U-shaped channel structure of precast assembly, it is characterised in that：It can be spliced to form U-shaped channel structure successively including multiple
U-shaped component (1), the U-shaped component (1) include prefabricated panel component (11) and set on the prefabricated panel component (11) cross
To the prefabricated side wall component (12) at both ends, the longitudinal side of the prefabricated panel component (11) and prefabricated side wall component (12) is all provided with
There are splicing step (2), the step surface of the splicing step (2) to be equipped with pre-embedded steel slab (3), the spelling of the adjacent U-shaped component (1)
It connects step (2) and constitutes groove (4) after splicing, welding steel is equipped between the pre-embedded steel slab (3) of the adjacent U-shaped component (1)
(5), the both sides of the welding steel (5) are respectively welded in the surface of adjacent pre-embedded steel slab (3), the adjacent U-shaped component (1) it
Between welding steel (5) be welded to each other composition steel plate frame, has poured concrete (6) in the groove (4).
2. the U-shaped channel structure of precast assembly according to claim 1, it is characterised in that：The prefabricated panel component
(11) transverse ends are equipped with bottom slab stress reinforcing bar (111), and the transverse ends of the prefabricated panel component (11) are also reserved with
Step (112), one end that the prefabricated side wall component (12) connect with prefabricated panel component (11) are equipped with side wall steel bar stress
(121), the bottom slab stress reinforcing bar (111) is staggered with side wall steel bar stress (121), the prefabricated panel component (11) with
The gap of prefabricated side wall component (12) joint has poured concrete (6).
3. the U-shaped channel structure of precast assembly according to claim 2, it is characterised in that：The prefabricated side wall component
(12) one end being connect with prefabricated panel component (11) is embedded with shaped steel bearing (122).
4. the U-shaped channel structure of precast assembly according to claim 3, it is characterised in that：The shaped steel bearing (122) sets
Position in four corners of prefabricated side wall component (12) end face.
5. the U-shaped channel structure of precast assembly according to any one of claims 1 to 4, it is characterised in that：The prefabricated bottom
Board member (11) is set on ground, and the prefabricated panel component (11) is equipped with concrete cushion (7) between ground.
6. the U-shaped channel structure of precast assembly according to any one of claims 1 to 4, it is characterised in that：The prefabricated bottom
The outside of board member (11) and prefabricated side wall component (12) is equipped with the waterproof layer (8) for preventing groundwater seepage.
7. the U-shaped channel structure of precast assembly according to claim 6, it is characterised in that：The waterproof layer (8) is self-adhesion
Polymer membranes.
8. a kind of method of the U-shaped channel structure of installation precast assembly as described in any one of claim 1 to 7, feature exist
In：Include the following steps,
S2, lifting simultaneously splice prefabricated panel component (11), and the splicing step (2) of contiguous prefabricated base plate member (11) is made to be spliced to form
Groove (4) welds the both sides of welding steel (5) with the pre-embedded steel slab (3) on contiguous prefabricated base plate member (11) respectively；
S3, lifting simultaneously splice prefabricated side wall component (12), and the splicing step (2) of contiguous prefabricated side wall component (12) is made to be spliced to form
Groove (4) welds the both sides of welding steel (5) with the pre-embedded steel slab (3) on contiguous prefabricated side wall component (12) respectively, will be pre-
It welds the end of welding steel (5) on the both ends and prefabricated side wall component (12) of welding steel (5) on base plate member (11) processed
Connect composition steel plate frame；
S4, the gap by prefabricated panel component (11) with prefabricated side wall component (12) joint, contiguous prefabricated base plate member (11)
Between groove (4) and contiguous prefabricated side wall component (12) between groove (4) poured with concrete (6)；
S5, carry out successively next segment prefabricated panel component (11) and prefabricated side wall component (12) lifting and splicing, complete
The installation of all open cut U-shaped channel structures.
9. installation method according to claim 8：It is characterized in that：Further include step S1 before the step S2,
S1, leveling ground, casting concrete bed course (7) on ground are laid with waterproof layer in concrete cushion (7) and foundation pit side-wall
(8)。
10. installation method according to claim 8 or claim 9, it is characterised in that：In the step S3 lift and splice it is prefabricated
When side wall component (12), prefabricated side wall component (12) is positioned and supported using shaped steel bearing (122).
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| CN201810753184.7A CN108708396A (en) | 2018-07-10 | 2018-07-10 | A kind of the U-shaped channel structure and its installation method of precast assembly |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109519004A (en) * | 2018-11-19 | 2019-03-26 | 上海市政工程设计研究总院（集团）有限公司 | A kind of prefabricated assembled pond and its assembly method |
| CN109577390A (en) * | 2019-01-10 | 2019-04-05 | 浙江工业大学 | Improve the assembled frame and joining method of concrete precast block static test stability |
| CN109881714A (en) * | 2019-03-29 | 2019-06-14 | 中铁第四勘察设计院集团有限公司 | A kind of connection structure and connection method of fabricated construction part |
| CN110130542A (en) * | 2019-05-31 | 2019-08-16 | 佳达环保工程有限公司 | A kind of modularization prefabricated panel |
| CN110230381A (en) * | 2019-07-01 | 2019-09-13 | 中铁七局集团有限公司 | A kind of precast underground railway station rail top air channel structure and its construction method |
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