CN109056776A - A kind of construction method of single pile cap - Google Patents
A kind of construction method of single pile cap Download PDFInfo
- Publication number
- CN109056776A CN109056776A CN201810865164.9A CN201810865164A CN109056776A CN 109056776 A CN109056776 A CN 109056776A CN 201810865164 A CN201810865164 A CN 201810865164A CN 109056776 A CN109056776 A CN 109056776A
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- China
- Prior art keywords
- precast concrete
- cushion cap
- concrete form
- height
- steel bar
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Classifications
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/10—Deep foundations
- E02D27/12—Pile foundations
- E02D27/14—Pile framings, i.e. piles assembled to form the substructure
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Piles And Underground Anchors (AREA)
Abstract
The invention discloses a kind of construction methods of single pile cap, comprising the following steps: first pours cushion cap backing plate；Cushion cap reinforcing steel bar frame is placed in the upper surface of cushion cap backing plate again, and binds column reinforcing bar in the top of cushion cap reinforcing steel bar frame；Then precast concrete form is mounted on to the periphery of cushion cap reinforcing steel bar frame, then in the external backfill of precast concrete form, until the height of backfill reaches at the first setting height；Finally to casting concrete inside precast concrete form, until concrete coats cushion cap reinforcing steel bar frame completely and the height of concrete reaches the second setting height, single pile cap is formed after concrete strength reaches setting intensity.The present invention sets form erecting operation face using precast concrete form and without staying, and process is simple to operation, and required working face is small, convenient for continuous construction, is conducive to improve construction efficiency and construction quality.
Description
Technical field
The present invention relates to technical field of building construction, and in particular to a kind of construction method of single pile cap.
Background technique
Intensive single-pile foundation cushion cap is disposed in the construction that pipe pile foundation has contignation terrace, under terrace, each
There is short column on foundation platform, single-pile foundation cushion cap generallys use conventional slope and excavates, and stays and set form erecting operation face progress wooden model
The construction method installed, but the construction method complex procedures, it is larger that cumbersome and area occupied is set up in form erecting operation face, and often meeting
Cause work surface it is insufficient, can only be every across excavation, the problem of can not continuously constructing, construction efficiency is lower and construction quality can not protect
Card.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of construction methods of single pile cap, using precast concrete form
And form erecting operation face is set without staying, process is simple to operation, and required working face is small, convenient for continuous construction, is conducive to improve construction effect
Rate and construction quality.
In order to solve the above technical problem, the present invention provides technical solution it is as follows:
A kind of construction method of single pile cap, comprising the following steps:
1) it carries out earth excavation and pours cushion cap backing plate；
2) cushion cap reinforcing steel bar frame is placed in the upper surface of cushion cap backing plate, and binds column reinforcing bar in the top of cushion cap reinforcing steel bar frame；
3) precast concrete form is mounted on to the periphery of cushion cap reinforcing steel bar frame, so that precast concrete form covers cushion cap reinforcing steel bar frame
Side wall；
4) in the external backfill of precast concrete form, until the height of backfill reaches at the first setting height；
5) to casting concrete inside precast concrete form, until concrete coats the cushion cap reinforcing steel bar frame and coagulation completely
The height of soil reaches the second setting height, forms the single pile cap after concrete strength reaches setting intensity.
In the step 4), first setting height is the height of cushion cap reinforcing steel bar frame.
In the step 5), second setting height is the height of precast concrete form.
The precast concrete form is poured by pea gravel concreten.
Single-layer bidirectional reinforcing bar is embedded with inside the precast concrete form.
The top of the precast concrete form is provided with hoisting ring, and the hoisting ring is mutually welded with the single-layer bidirectional reinforcing bar
It connects.
The precast concrete form uses rectangular frame structure.
Length, width and the height of the rectangular frame structure are no more than 800mm.
The invention has the following advantages: the construction method of single pile cap of the invention, precast concrete form is straight
Female connector is located at the periphery of cushion cap reinforcing steel bar frame, sets form erecting operation face without staying, reduces excavation workload, but also working procedure is more
Add simple and convenient；The casting quality of single pile cap is high；Process is simple to operation, and required working face is small, convenient for continuous construction, significantly
Improve construction efficiency and construction quality.
Detailed description of the invention
Fig. 1 is the perspective structure schematic diagram of single pile cap of the invention；
Fig. 2 is the structural schematic diagram of precast concrete form in Fig. 1；
Fig. 3 is the perspective structure schematic diagram of precast concrete form in Fig. 2；
Fig. 4 is the structural schematic diagram of cushion cap reinforcing steel bar frame in Fig. 1；
In figure: 1, cushion cap backing plate, 2, cushion cap reinforcing steel bar frame, 3, column reinforcing bar, 4, precast concrete form, 41, reinforcing bar, 42, lifting
Ring.
Specific embodiment
The present invention will be further explained below with reference to the attached drawings and specific examples, so that those skilled in the art can be with
It more fully understands the present invention and can be practiced, but illustrated embodiment is not as a limitation of the invention.
As shown in Figure 1, present embodiment discloses a kind of construction methods of single pile cap, comprising the following steps:
1) it carries out earth excavation and casting concrete forms cushion cap backing plate 1；
2) cushion cap reinforcing steel bar frame 2 is placed in the upper surface of cushion cap backing plate 1, and binds column reinforcing bar 3 in the top of cushion cap reinforcing steel bar frame 2；
Wherein cushion cap reinforcing steel bar frame 2 is in rectangle, and structure is as shown in Figure 4.
3) precast concrete form 4 is mounted on to the periphery of cushion cap reinforcing steel bar frame 2, so that precast concrete form 4 covers completely
The side wall of lid cushion cap reinforcing steel bar frame 2；
Further, the side wall of cushion cap reinforcing steel bar frame 2 is supported on the inner wall of precast concrete form 4, prefabricated preferably to support
Concrete blinding 4.
4) in the external backfill of precast concrete form 4, until the height of backfill reaches at the first setting height；
Wherein, in the external backfill of precast concrete form 4, it may make the outside of precast concrete form 4 by back fill course
Support, guarantees the stable degree of precast concrete form 4, while being also convenient for staying for the excavation of next cushion cap and setting working face.
Further, the first setting height is the height of cushion cap reinforcing steel bar frame 2, so that soil layer is to precast concrete form 4
External formed preferably support.
5) to 4 inside casting concrete of precast concrete form, until concrete coats cushion cap reinforcing steel bar frame 2 completely and mixes
The height for coagulating soil reaches the second setting height, forms single pile cap namely coagulation after concrete hardness reaches setting intensity
After soil casting, precast concrete form 4 forms one without dismounting and single pile cap.
Further, the second setting height is the height H of precast concrete form 4.
In a wherein embodiment, as shown in Fig. 2, precast concrete form 4 is poured by pea gravel concreten
Without top cover and without the frame structure of bottom cover, pea gravel concreten intensity is not less than C20.Pea gravel concreten has casting conveniently, no
The speed of application and molding matter of precast concrete form 4 can be improved in the advantages of easy defect for blibbing or voids and pits occur
Amount.And precast concrete form 4 itself is formed by concreting, rigidity is preferable, is unlikely to deform.
In a wherein embodiment, as shown in figure 3, being embedded with single-layer bidirectional reinforcing bar inside precast concrete form 4
41,41 diameter of reinforcing bar is 8mm.
In a wherein embodiment, the top of precast concrete form 4 is provided with the hoisting ring 42 that diameter is 8mm,
Hoisting ring 42 is mutually welded with single-layer bidirectional reinforcing bar 41, namely when making precast concrete form 4, first binds single-layer bidirectional reinforcing bar
41 form framework of steel reinforcement, then weld hoisting ring 42 in the top of framework of steel reinforcement, are then poured pea gravel concreten again and form prefabricated mix
Solidifying clay model plate 4.
In a wherein embodiment, precast concrete form 4 uses rectangular frame structure, stable structure, convenient for applying
Work.
Further, the length of rectangular frame structure, width and height are no more than 800mm.
Further, as shown in Fig. 2, the wall thickness of precast concrete form 4 is 40mm, to guarantee its structural strength.
The precast concrete form 4 of the present embodiment is the periphery for being directly set in cushion cap reinforcing steel bar frame 2, and installation is simple and convenient,
Without setting up form erecting operation face, same mode is can also be used in the construction of subsequent structural column, for example, first precast construction column template,
The template is poured by concrete, and then after carrying out step 5), structure column template is mounted on the outer of column reinforcing bar 3
It encloses, then in the external backfill of structure column template to setting height, then into structure column template is poured concrete, until coagulation
The native column reinforcing bar 3 of cladding completely, forms structural column after concrete reaches setting intensity.
The construction method of the single pile cap of the present embodiment, precast concrete form 4 are directly to be set in cushion cap reinforcing steel bar frame 2
Periphery sets form erecting operation face without staying, reduces excavation workload, but also the simpler convenience of working procedure；Concrete
The outside of clay model plate 4 is supported by backfilling of earthwork, is supported inside template by cushion cap reinforcing steel bar frame 2, and precast concrete form 4 is in itself
Whole to pour rigid, therefore in concreting, there is no mould and the quick-fried modulus problems of rising, and can effectively ensure that concrete casting quality,
Namely it can effectively ensure that the quality and dimensional accuracy of finally formed single pile cap；In addition the construction method is to precast concrete
Backfill is carried out in template 4 before casting concrete, can also be stayed in advance for the excavation of next cushion cap and set working face, met subsequent
The smooth linking of operation, conducive to the construction speed for improving integral terrace；After concreting, precast concrete form 4 is not removed,
It can further improve construction efficiency；The construction method, process is simple to operation, and working face is small, convenient for continuous construction, greatly improves
Construction efficiency and construction quality.
The construction method of the present embodiment is particularly suitable for narrow construction area, especially structure terrace Single Pile cushion cap number
Measure excessively intensive bearing platform construction operation.
Embodiment described above is only to absolutely prove preferred embodiment that is of the invention and being lifted, protection model of the invention
It encloses without being limited thereto.Those skilled in the art's made equivalent substitute or transformation on the basis of the present invention, in the present invention
Protection scope within.Protection scope of the present invention is subject to claims.
Claims (8)
1. a kind of construction method of single pile cap, characterized in that the following steps are included:
1) it carries out earth excavation and pours cushion cap backing plate；
2) cushion cap reinforcing steel bar frame is placed in the upper surface of cushion cap backing plate, and binds column reinforcing bar in the top of cushion cap reinforcing steel bar frame；
3) precast concrete form is mounted on to the periphery of cushion cap reinforcing steel bar frame, so that precast concrete form covers cushion cap reinforcing steel bar frame
Side wall；
4) in the external backfill of precast concrete form, until the height of backfill reaches at the first setting height；
5) to casting concrete inside precast concrete form, until concrete coats the cushion cap reinforcing steel bar frame and coagulation completely
The height of soil reaches the second setting height, forms the single pile cap after concrete strength reaches setting intensity.
2. the construction method of single pile cap as described in claim 1, characterized in that in the step 4), first setting
Height is the height of cushion cap reinforcing steel bar frame.
3. the construction method of single pile cap as described in claim 1, characterized in that in the step 5), second setting
Height is the height of precast concrete form.
4. the construction method of single pile cap as described in claim 1, characterized in that the precast concrete form is mixed by microlith
Solidifying soil is poured.
5. the construction method of single pile cap as described in claim 1, characterized in that embedded inside the precast concrete form
There is single-layer bidirectional reinforcing bar.
6. the construction method of single pile cap as claimed in claim 5, characterized in that the top of the precast concrete form is set
It is equipped with hoisting ring, the hoisting ring is mutually welded with the single-layer bidirectional reinforcing bar.
7. the construction method of single pile cap as described in claim 1, characterized in that the precast concrete form uses rectangle
Frame structure.
8. the construction method of single pile cap as claimed in claim 7, characterized in that the length of the rectangular frame structure, width
Degree and height are no more than 800mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810865164.9A CN109056776A (en) | 2018-08-01 | 2018-08-01 | A kind of construction method of single pile cap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810865164.9A CN109056776A (en) | 2018-08-01 | 2018-08-01 | A kind of construction method of single pile cap |
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| Publication Number | Publication Date |
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| CN109056776A true CN109056776A (en) | 2018-12-21 |
Family
ID=64832411
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810865164.9A Pending CN109056776A (en) | 2018-08-01 | 2018-08-01 | A kind of construction method of single pile cap |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203034790U (en) * | 2012-12-24 | 2013-07-03 | 浙江天力建设集团有限公司 | Basic prefabricated concrete formwork for basement |
| CN105350559A (en) * | 2015-11-27 | 2016-02-24 | 中国一冶集团有限公司 | Construction method suitable for emery structural ground of large factory building |
| JP2016079683A (en) * | 2014-10-17 | 2016-05-16 | 大和ハウス工業株式会社 | Earth retaining structure for banking, and integrally cast body for foundation and earthen floor |
| CN106223354A (en) * | 2016-08-18 | 2016-12-14 | 上海建工七建集团有限公司 | The construction method of shallow foundation stay in place form |
| CN106958312A (en) * | 2017-05-16 | 2017-07-18 | 哈尔滨工业大学（威海） | A kind of non-dismantling formwork and its construction method |
| CN107893426A (en) * | 2017-11-15 | 2018-04-10 | 中国电力工程顾问集团西北电力设计院有限公司 | The heavy excavation anti-corrosion foundation and construction method of a kind of electric power line pole tower |
-
2018
- 2018-08-01 CN CN201810865164.9A patent/CN109056776A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203034790U (en) * | 2012-12-24 | 2013-07-03 | 浙江天力建设集团有限公司 | Basic prefabricated concrete formwork for basement |
| JP2016079683A (en) * | 2014-10-17 | 2016-05-16 | 大和ハウス工業株式会社 | Earth retaining structure for banking, and integrally cast body for foundation and earthen floor |
| CN105350559A (en) * | 2015-11-27 | 2016-02-24 | 中国一冶集团有限公司 | Construction method suitable for emery structural ground of large factory building |
| CN106223354A (en) * | 2016-08-18 | 2016-12-14 | 上海建工七建集团有限公司 | The construction method of shallow foundation stay in place form |
| CN106958312A (en) * | 2017-05-16 | 2017-07-18 | 哈尔滨工业大学（威海） | A kind of non-dismantling formwork and its construction method |
| CN107893426A (en) * | 2017-11-15 | 2018-04-10 | 中国电力工程顾问集团西北电力设计院有限公司 | The heavy excavation anti-corrosion foundation and construction method of a kind of electric power line pole tower |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181221 |
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| RJ01 | Rejection of invention patent application after publication |