CN110397148A - A kind of prefabricated assembled catch pit structure and construction method - Google Patents
A kind of prefabricated assembled catch pit structure and construction method Download PDFInfo
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- CN110397148A CN110397148A CN201910659492.8A CN201910659492A CN110397148A CN 110397148 A CN110397148 A CN 110397148A CN 201910659492 A CN201910659492 A CN 201910659492A CN 110397148 A CN110397148 A CN 110397148A
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- prefabricated
- pit
- catchmenting
- reinforcing bar
- cast
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F5/00—Sewerage structures
- E03F5/10—Collecting-tanks; Equalising-tanks for regulating the run-off; Laying-up basins
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Hydrology & Water Resources (AREA)
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Abstract
The present invention provides a kind of prefabricated assembled catch pit structures, including prefabricated pit body and the cast-in-place structural bottom plate of catchmenting, the prefabricated pit body top of catchmenting circumferentially is embedded with several first reinforcing bars, first reinforcing bar is perpendicular to the external side wall of prefabricated catch pit, and first reinforcing bar one end be located in prefabricated catch pit body, the other end is located in cast-in-place structural bottom plate, several second reinforcing bars is provided in the cast-in-place structural bottom plate, and the second reinforcing bar connects one to one with the first reinforcing bar.Prefabricated pit body of catchmenting can be produced in batches in factory, be conserved in the invention, then it transports to scene, directly lifting installation at the scene, remove assembling reinforcement from, set up the cumbersome work such as template, casting concrete, maintenance, save the duration, construction quality is improved, has many advantages, such as that easy for construction, good economy performance, short time limit, construction quality are good.
Description
Technical field
The invention belongs to architectural engineering construction technique fields, and in particular to a kind of prefabricated assembled catch pit structure and construction
Method is applied to the fields basement wind pavilion catch pits such as rail traffic, building construction, municipal works.
Background technique
Subway station design when in view of station section ventilation or air conditioning requirements, need AT STATION both ends setting fresh air pavilion,
Air draft pavilion and Piston Action Wind pavilion set fresh air pavilion, air draft pavilion and Piston Action Wind pavilion because need to separately add in the station of station there are Estate Development sometimes.
In view of urban landscape needs the general open low wind pavilion of all settings, one 1.8m × 1.5m × 1.5m of setting is needed under each wind pavilion
(long × wide × deep) catch pit, generally there are 8 catch pits at a station, have 10 catch pits with Estate Development.
Catch pit construction, which belongs to, cheats construction in hole, increase the time of foundation pit back cover, undoubtedly increase construction risk, increase
Difficulty of construction；And often due to reasons such as underground water, concreting, maintenance under substrate, have constructed in practice of construction
It will appear leakage problem at rear catch pit.
Summary of the invention
The purpose of the present invention is overcoming existing catch pit, difficulty of construction is big, and the construction period is long, easily seeps after the completion of construction
The problem of leak.
For this purpose, the present invention provides a kind of prefabricated assembled catch pit structure, including prefabricated pit body and the cast-in-place structural of catchmenting
Bottom plate, the prefabricated pit body top of catchmenting circumferentially are embedded with several first reinforcing bars, and first reinforcing bar is perpendicular to prefabricated catch pit
External side wall, and first reinforcing bar one end is located in prefabricated catch pit body, the other end is located in cast-in-place structural bottom plate, the cast-in-place knot
Several second reinforcing bars are provided in structure bottom plate, and the second reinforcing bar connects one to one with the first reinforcing bar.
Further, the prefabricated pit body of catchmenting is prefabricated square concrete pit body structure, concrete pit body top
Equipped with outside vertically extending flange, first reinforcing bar is embedded in advance in the flange, the flange height and the cast-in-place structural
Bottom plate heights are consistent.
Further, first reinforcing bar is provided with multiple on the different height of the flange of the prefabricated pit body of catchmenting,
And the tie point of the first reinforcing bar and the second reinforcing bar is arranged in different height dislocation in the cast-in-place structural bottom plate.
Further, Grouting Pipe is embedded at the top of the prefabricated pit body of catchmenting, prefabricated collection is stretched out in described Grouting Pipe one end
At the top of the body of puddle, the other end is embedded in prefabricated pit body of catchmenting in advance, and extends to the construction of prefabricated catchment pit body and cast-in-place structural bottom plate
At seam.
Further, the prefabricated pit body top of catchmenting circumferentially is embedded with zinc-plated steel plate for sealing water, the zinc-plated steel plate for sealing water
Side be located in prefabricated catch pit body, the other side is located in cast-in-place structural bottom plate.
In addition, including the following steps: the present invention also provides the construction method of above-mentioned prefabricated assembled catch pit structure
1) in factory according to the prefabricated pit body of catchmenting of design size Prefabrication, and on prefabricated pit body top circumferentially pre-buried first of catchmenting
Reinforcing bar；
2) at the construction field (site) according to design requirement construction foundation pit, after excavation of foundation pit to the prefabricated pit body absolute altitude that catchments, in bottom of foundation ditch
Construction cushion coat and waterproof protective layer；
3) in the second reinforcing bar of foundation pit periphery construction and installation and cast-in-place structural bottom plate, prefabricated pit body of catchmenting is lifted into foundation pit, and
Second reinforcing bar is connect with the first reinforcing bar pre-buried in prefabricated pit body of catchmenting by root.
As one of embodiment, first prefabricated pit body of catchmenting is lifted into foundation pit in the step 3), then in cast-in-place knot
The second reinforcing bar of construction and installation at structure bottom plate, and the second reinforcing bar is connect with the first reinforcing bar pre-buried in prefabricated pit body of catchmenting by root,
Cast-in-place structural bottom plate is finally poured, reaches design requirement to cast-in-place structural base plate strength.
As one of embodiment, first the second reinforcing bar of construction and installation at cast-in-place structural bottom plate in the step 3), then pour
Cast-in-place structural bottom plate is built, and reserves and is not poured with the prefabricated pit body 500mm join domain that catchments, then by prefabricated pit body lifting of catchmenting
Into foundation pit, the first pre-buried reinforcing bar is connect with the second reinforcing bar with by root in prefabricated pit body of catchmenting, and finally pours cast-in-place structural bottom
The reserved 500mm join domain concrete of plate.
Further, the foundation pit inner sidewall and the external side wall of prefabricated catch pit and waterproof protective layer are catchmented with prefabricated
The slip casting bed of material is poured between pit body bottom.
Further, built-in slip casting pipe at the top of the prefabricated pit body of catchmenting, reaches design to cast-in-place structural base plate strength and wants
Slip casting is carried out using construction joint of the Grouting Pipe to cast-in-place structural bottom plate and prefabricated pit body of catchmenting after asking.
Compared with prior art, beneficial effects of the present invention:
(1) in this prefabricated assembled catch pit structure provided by the invention it is prefabricated catchment pit body factory batch production, maintenance,
Then it transports to scene, at the scene directly lifting installation, it is cumbersome to remove assembling reinforcement, erection template, casting concrete, maintenance etc. from
The duration is saved in work, improves construction quality, has many advantages, such as that easy for construction, good economy performance, short time limit, construction quality are good.
(2) prefabricated pit body of catchmenting uses precast concrete knot in this prefabricated assembled catch pit structure provided by the invention
Structure shortens the construction time relative to the catch pit of cast-in-place structural, relative to steel catch pit, improves waterproof anti-corrosion performance,
Extend service life.
The present invention is described in further details below with reference to attached drawing.
Detailed description of the invention
Fig. 1 is the planar structure schematic diagram of the prefabricated assembled catch pit structure of the present invention；
Fig. 2 be in Fig. 1 A-A to schematic cross-section.
Description of symbols: 1, prefabricated pit body of catchmenting；2, Grouting Pipe；3, zinc-plated steel plate for sealing water；4, cast-in-place structural bottom plate；5,
First reinforcing bar；6, the second reinforcing bar；7, flange.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts all other
Embodiment shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that, term " center ", "upper", "lower", "front", "rear", " left side ",
The orientation or positional relationship of the instructions such as " right side ", "vertical", "horizontal", "top", "bottom", "inner", "outside" is based on the figure
Orientation or positional relationship is merely for convenience of description of the present invention and simplification of the description, rather than the device of indication or suggestion meaning or
Element must have a particular orientation, be constructed and operated in a specific orientation, therefore be not considered as limiting the invention.
Term " first ", " second " be used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance or
Implicitly indicate the quantity of indicated technical characteristic." first " is defined as a result, the feature of " second " can be expressed or imply
Ground includes one or more of the features；In the description of the present invention, unless otherwise indicated, the meaning of " plurality " is two or
It is more than two.
As depicted in figs. 1 and 2, a kind of prefabricated assembled catch pit structure, including prefabricated catch pit are present embodiments provided
Body 1 and cast-in-place structural bottom plate 4, prefabricated 1 top of pit body of catchmenting circumferentially are embedded with several first reinforcing bars 5, first reinforcing bar 5
Perpendicular to prefabricated 1 lateral wall of pit body that catchments, and 5 one end of the first reinforcing bar is catchmented in pit body 1 positioned at prefabricated, and the other end is located at cast-in-place knot
In structure bottom plate 4, several second reinforcing bars 6 are provided in the cast-in-place structural bottom plate 4, and the second reinforcing bar 6 and the first reinforcing bar 5 one are a pair of
It should connect.Site operation is eliminated by shifting to an earlier date prefabricated batch production in factory using prefabricated pit body of catchmenting in the present embodiment
The cumbersome work such as assembling reinforcement, erection template, casting concrete, maintenance, shortens the site operation period, simultaneously when pit body of catchmenting
It is quality controllable in prefabricated 1 production process of pit body of catchmenting, substantially increase construction quality；And the pit body peripheral floor that catchments is using existing
Structure base slab is poured, the intensity and waterproof performance of the prefabricated assembled catch pit structure are enhanced.
The embodiment of refinement, the prefabricated pit body 1 of catchmenting is prefabricated square concrete pit body structure, coagulation heatable adobe sleeping platform
Body top is equipped with outside vertically extending flange 7, and convenient for the connection with cast-in-place structural bottom plate 4, first reinforcing bar 5 is embedded in this in advance
In flange 7,7 height of flange is consistent with 4 height of cast-in-place structural bottom plate.Optimization, first reinforcing bar 5 is described pre-
System catchment pit body 1 flange 7 different height on be provided with multiple, the first reinforcing bar 5 is in prefabricated pit body 1 of catchmenting in the present embodiment
Divide upper layer and lower layer arrangement, increases the prefabricated bonding strength to catchment between pit body 1 and cast-in-place structural bottom plate 4.Further, described
The tie point of first reinforcing bar 5 and the second reinforcing bar 6 misplaces in different height and arranges in cast-in-place structural bottom plate 4, so that cast-in-place structural bottom
Bonding strength disperses compared with weakness in plate 4, avoids the intensity in some direction cast-in-place structural bottom plate 4 Nei weaker, and influences it and integrally tie
Structure intensity.
It is described in order to further increase the infiltration energy of the prefabricated junction between pit body 1 and cast-in-place structural bottom plate 4 of catchmenting
The prefabricated top for catchmenting pit body 1 is embedded with Grouting Pipe 2, and prefabricated 1 top of pit body of catchmenting, the other end are stretched out in described 2 one end of Grouting Pipe
Be embedded in advance it is prefabricated catchment in pit body 1, and extend at the construction joint of prefabricated catchment pit body 1 and cast-in-place structural bottom plate 4, construction is completed
After cast-in-place structural bottom plate 4, slip casting can be carried out to the construction joint of prefabricated catchment pit body 1 and cast-in-place structural bottom plate 4 by Grouting Pipe 2,
Fill construction joint.
Further, prefabricated 1 top of pit body of catchmenting it is circumferential can also pre-buried zinc-plated steel plate for sealing water 3, the zinc-plated sealing
The side of steel plate 3 is catchmented in pit body 1 positioned at prefabricated, and the other side is located in cast-in-place structural bottom plate 4, passes through zinc-plated steel plate for sealing water 4
The lower leakage of construction joint infiltration that can avoid prefabricated catchment pit body 1 and cast-in-place structural bottom plate 4 is set, prefabricated catch pit is further improved
The infiltration energy of junction between body 1 and cast-in-place structural bottom plate 4.
The construction method of this prefabricated assembled catch pit structure in the present embodiment, detailed process is as follows:
Firstly, in factory according to the prefabricated pit body 1 of catchmenting of design size Prefabrication, and it is circumferentially pre- on prefabricated 1 top of pit body of catchmenting
The first reinforcing bar 5 is buried, prefabricated pit body 1 of catchmenting is stretched out in 5 part of the first reinforcing bar, which answers position in prefabricated pit body 1 of catchmenting
It is convenient when being installed by prefabricated pit body 1 of catchmenting to connect setting with the second reinforcing bar 6 in the subsequent cast-in-place structural bottom plate 4 poured.
Secondly, at the construction field (site) according to design requirement construction foundation pit, after excavation of foundation pit to prefabricated 1 absolute altitude of pit body that catchments, In
Bottom of foundation ditch successively construction cushion coat and waterproof protective layer；Above-mentioned prefabricated pit body 1 of catchmenting is lifted into foundation pit again, so that prefabricated collection
Body 1 bottom in puddle is in contact with the waterproof protective layer of bottom of foundation ditch；Further, when being installed to improve prefabricated pit body 1 of catchmenting,
Its waterproof performance connected between foundation pit, the foundation pit inner sidewall and prefabricated 1 lateral wall of pit body and the waterproof protective layer of catchmenting
The slip casting bed of material can be poured between prefabricated 1 bottom of pit body of catchmenting.
Then, the second reinforcing bar of construction and installation 6 at cast-in-place structural bottom plate 4, and utilize reinforcing bar connector or welding manner will
Second reinforcing bar 6 is connect with the first reinforcing bar 5 pre-buried in prefabricated pit body 1 of catchmenting by root.
Finally, pouring cast-in-place structural bottom plate 4, reach design requirement to cast-in-place structural bottom plate semi-finals degree.
Certainly, can also first the second reinforcing bar of construction and installation at cast-in-place structural bottom plate, then pour cast-in-place structural bottom plate, and reserve
It does not pour, then lifts prefabricated pit body of catchmenting into foundation pit, prefabricated pit body of catchmenting with the prefabricated pit body 500mm join domain that catchments
Upper the first pre-buried reinforcing bar is connect with the second reinforcing bar with by root, finally pours the reserved 500mm join domain of cast-in-place structural bottom plate
Concrete.
In conclusion prefabricated pit body of catchmenting is in factory's batch in this prefabricated assembled catch pit structure provided by the invention
Production, maintenance, then transport to scene, at the scene directly lifting installation, remove from assembling reinforcement, erection template, casting concrete,
The duration is saved in the cumbersome work such as maintenance, improves construction quality, has easy for construction, good economy performance, short time limit, construction quality good
The advantages that.
The foregoing examples are only illustrative of the present invention, does not constitute the limitation to protection scope of the present invention, all
It is within being all belonged to the scope of protection of the present invention with the same or similar design of the present invention.
Claims (10)
1. a kind of prefabricated assembled catch pit structure, it is characterised in that: described including prefabricated catchment pit body and cast-in-place structural bottom plate
Prefabricated pit body top of catchmenting circumferentially is embedded with several first reinforcing bars, first reinforcing bar perpendicular to the external side wall of prefabricated catch pit,
And first reinforcing bar one end be located in prefabricated catch pit body, the other end is located in cast-in-place structural bottom plate, in the cast-in-place structural bottom plate
Several second reinforcing bars are provided with, and the second reinforcing bar connects one to one with the first reinforcing bar.
2. a kind of prefabricated assembled catch pit structure as described in claim 1, it is characterised in that: the prefabricated pit body of catchmenting is
Prefabricated square concrete pit body structure, concrete pit body top are equipped with outside vertically extending flange, first reinforcing bar
It is embedded in the flange in advance, the flange height is consistent with the cast-in-place structural bottom plate heights.
3. a kind of prefabricated assembled catch pit structure as claimed in claim 2, it is characterised in that: first reinforcing bar is described
Multiple, and the first reinforcing bar and the second steel in the cast-in-place structural bottom plate are provided on the different height of the flange of prefabricated pit body of catchmenting
The tie point of muscle misplaces in different height and arranges.
4. a kind of prefabricated assembled catch pit structure as described in claim 1, it is characterised in that: the prefabricated pit body of catchmenting
Top is embedded with Grouting Pipe, and described Grouting Pipe one end is stretched out at the top of prefabricated pit body of catchmenting, and the other end is embedded in prefabricated pit body of catchmenting in advance,
And it extends at the construction joint of prefabricated catchment pit body and cast-in-place structural bottom plate.
5. a kind of prefabricated assembled catch pit structure as described in claim 1, it is characterised in that: described prefabricated to catchment in pit body
Portion is circumferentially embedded with zinc-plated steel plate for sealing water, and the side of the zinc-plated steel plate for sealing water is located in prefabricated catch pit body, and the other side is located at
In cast-in-place structural bottom plate.
6. a kind of construction method of prefabricated assembled catch pit structure as claimed in any one of claims 1 to 5, feature exist
In including the following steps:
1) in factory according to the prefabricated pit body of catchmenting of design size Prefabrication, and on prefabricated pit body top circumferentially pre-buried first of catchmenting
Reinforcing bar；
2) at the construction field (site) according to design requirement construction foundation pit, after excavation of foundation pit to the prefabricated pit body absolute altitude that catchments, in bottom of foundation ditch
Construction cushion coat and waterproof protective layer；
3) in the second reinforcing bar of foundation pit periphery construction and installation and cast-in-place structural bottom plate, prefabricated pit body of catchmenting is lifted into foundation pit, and
Second reinforcing bar is connect with the first reinforcing bar pre-buried in prefabricated pit body of catchmenting by root.
7. a kind of construction method of prefabricated assembled catch pit structure as claimed in claim 6, which is characterized in that the step
3) first prefabricated pit body of catchmenting is lifted into foundation pit in, then the second reinforcing bar of construction and installation at cast-in-place structural bottom plate, and by second
Reinforcing bar is connect with the first reinforcing bar pre-buried in prefabricated pit body of catchmenting by root, cast-in-place structural bottom plate is finally poured, to cast-in-place structural bottom
Plate intensity reaches design requirement.
8. a kind of construction method of prefabricated assembled catch pit structure as claimed in claim 6, which is characterized in that the step
3) first the second reinforcing bar of construction and installation at cast-in-place structural bottom plate in, then pour cast-in-place structural bottom plate, and it is reserved with prefabricated catch pit
Body 500mm join domain does not pour, and then lifts prefabricated pit body of catchmenting into foundation pit, pre-buried first in prefabricated pit body of catchmenting
Reinforcing bar is connect with the second reinforcing bar with by root, finally pours the reserved 500mm join domain concrete of cast-in-place structural bottom plate.
9. a kind of construction method of prefabricated assembled catch pit structure as claimed in claim 6, which is characterized in that the foundation pit
Grout material is poured between inner sidewall and the external side wall of prefabricated catch pit and waterproof protective layer and prefabricated pit body bottom of catchmenting
Layer.
10. a kind of construction method of prefabricated assembled catch pit structure as claimed in claim 6, which is characterized in that described pre-
Built-in slip casting pipe at the top of pit body of catchmenting is made, using Grouting Pipe to cast-in-place structural after cast-in-place structural base plate strength reaches design requirement
Bottom plate and the construction joint of prefabricated pit body of catchmenting carry out slip casting.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910659492.8A CN110397148A (en) | 2019-07-22 | 2019-07-22 | A kind of prefabricated assembled catch pit structure and construction method |
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| CN201910659492.8A CN110397148A (en) | 2019-07-22 | 2019-07-22 | A kind of prefabricated assembled catch pit structure and construction method |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111452183A (en) * | 2020-04-10 | 2020-07-28 | 中国水利水电第一工程局有限公司 | Prefabricated water collecting pit and construction method thereof |
| CN112177045A (en) * | 2020-09-29 | 2021-01-05 | 中铁第四勘察设计院集团有限公司 | Assembly structure of subway wind pavilion and construction method thereof |
| CN112359874A (en) * | 2020-11-18 | 2021-02-12 | 中建八局第三建设有限公司 | Construction method of basement sump structure |
| CN112797235A (en) * | 2020-12-30 | 2021-05-14 | 许可 | Method for installing water conveying pipeline in tunnel |
| CN116556687A (en) * | 2023-05-12 | 2023-08-08 | 中建八局第四建设有限公司 | Prefabricated water collecting pit construction method |
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| CN111452183A (en) * | 2020-04-10 | 2020-07-28 | 中国水利水电第一工程局有限公司 | Prefabricated water collecting pit and construction method thereof |
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