CN111119189A - Pile foundation reinforcement cage positioning device and pile foundation reinforcement cage construction method - Google Patents
Pile foundation reinforcement cage positioning device and pile foundation reinforcement cage construction method Download PDFInfo
- Publication number
- CN111119189A CN111119189A CN202010023854.7A CN202010023854A CN111119189A CN 111119189 A CN111119189 A CN 111119189A CN 202010023854 A CN202010023854 A CN 202010023854A CN 111119189 A CN111119189 A CN 111119189A
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- reinforcement cage
- frame
- positioning device
- steel
- pile foundation
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- 230000002787 reinforcement Effects 0.000 title claims abstract description 132
- 238000010276 construction Methods 0.000 title claims abstract description 44
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 69
- 239000010959 steel Substances 0.000 claims abstract description 69
- 238000000034 method Methods 0.000 claims abstract description 14
- 238000005096 rolling process Methods 0.000 claims description 23
- 230000006978 adaptation Effects 0.000 claims description 4
- 230000002349 favourable effect Effects 0.000 abstract description 2
- 210000003205 muscle Anatomy 0.000 description 8
- 239000011148 porous material Substances 0.000 description 4
- 238000003466 welding Methods 0.000 description 4
- 238000007790 scraping Methods 0.000 description 3
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 2
- 235000017491 Bambusa tulda Nutrition 0.000 description 2
- 241001330002 Bambuseae Species 0.000 description 2
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 2
- 239000011425 bamboo Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
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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
- E02D15/00—Handling building or like materials for hydraulic engineering or foundations
- E02D15/08—Sinking workpieces into water or soil inasmuch as not provided for elsewhere
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/22—Piles
- E02D5/34—Concrete or concrete-like piles cast in position ; Apparatus for making same
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- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- Piles And Underground Anchors (AREA)
Abstract
The invention discloses a positioning device of a pile foundation reinforcement cage and a construction method of the pile foundation reinforcement cage. Adopt this device to carry out both ends location through the upper end and the lower extreme to steel reinforcement cage respectively, effectively avoid steel reinforcement cage to put the in-process under and appear the skew slope, improve the precision that steel reinforcement cage transferred, reduce and transfer the degree of difficulty of hanging down, improve the security of construction, reduce steel reinforcement cage's damage, improve the construction quality of pile foundation, simple structure, low cost, convenient to use is favorable to practicing thrift construction period and construction cost.
Description
Technical Field
The invention relates to the technical field of pile foundation reinforcement cage construction, in particular to a positioning device of a pile foundation reinforcement cage and a construction method of the pile foundation reinforcement cage.
Background
The well-constructed pile hole needs to be placed with the well-made reinforcement cage in the pile foundation construction process, the position of the reinforcement cage and the designed position cannot deviate too much, otherwise, the pile foundation quality is reduced easily, the bearing capacity is insufficient, and the position of the reinforcement cage in the hole needs to be controlled accurately.
At present, in actual construction, the traditional positioning method is adopted, the positioning steps are complicated, the positioning effect is poor, the construction efficiency is not high, the safety factor is not high, and in addition, the steel reinforcement cage is placed under the steel reinforcement cage, and the scraping damage of the steel reinforcement cage and the outside stirrup is also very serious.
Disclosure of Invention
The invention aims to overcome the defects of complex positioning steps, poor positioning effect, low construction efficiency, serious damage of a reinforcement cage and the like in the prior art when the pile foundation reinforcement cage is installed, and provides a positioning device of the pile foundation reinforcement cage and a construction method of the pile foundation reinforcement cage.
In order to achieve the purpose, the invention provides the following technical scheme:
the utility model provides a positioner of pile foundation steel reinforcement cage, contains frame and support component, be equipped with at least three rolling part in the frame, all the passageway adaptation steel reinforcement cage's that the rolling part encloses external diameter, the lower part outer wall of steel reinforcement cage is connected with at least three the support component, the support component is used for the location the lower extreme of steel reinforcement cage.
By adopting the positioning device for the pile foundation reinforcement cage, at least three supporting parts are connected on the outer wall of the lower part of the reinforcement cage, after the reinforcement cage is placed in a pile hole, the supporting parts are supported on the wall of the pile hole, the lower part of the reinforcement cage can be positioned, the reinforcement cage is prevented from scraping a protective wall, the upper part of the reinforcement cage is positioned through a channel surrounded by the roller parts at the pile hole opening, when the reinforcement cage is placed, rolling friction is formed between the reinforcement cage and the roller parts, the resistance in the placing process is greatly reduced, the reinforcement cage is prevented from being scratched, by adopting the positioning device, the two ends of the upper end and the lower end of the reinforcement cage are respectively positioned, the reinforcement cage is effectively prevented from being deviated and inclined in the placing process, the placing precision of the reinforcement cage is improved, the verticality adjusting difficulty is reduced, and the construction safety is improved, the damage of the steel reinforcement cage is reduced, the construction quality of the pile foundation is improved, the structure is simple, the cost is low, the use is convenient, and the construction period and the construction cost are saved.
Preferably, the frame is square, and the frame comprises four steel section members.
More preferably, the number of the rolling members is four, and the rolling members are steel pipes.
Further preferably, the steel tube is arranged in the middle of the corresponding edge of the frame, and a rotating shaft of the steel tube is connected to the frame through a connecting part.
Preferably, the support component comprises an ear rib, and the ear rib is welded and connected with a longitudinal rib of the reinforcement cage.
Further preferably, the supporting parts are uniformly distributed along the circumferential direction of the steel reinforcement cage, and the width of each supporting part is matched with the distance between the steel reinforcement cage and the hole wall of the pile hole.
It is further preferred that the reinforcement cage comprises a plurality of sections, all of the support members being connected to the bottom of a first of the sections.
Preferably, the frame is attached to the top surface of the casing.
By adopting the arrangement mode, the top end of the reinforcement cage is ensured to be sunk into the pile casing and separated from the positioning device to the designed standard height, and the center of the top of the reinforcement cage is still coincident with the center of the pile.
A construction method of a pile foundation reinforcement cage comprises the following steps:
a. connecting at least three rolling parts in a frame, wherein a channel defined by all the rolling parts is matched with the outer diameter of a reinforcement cage, and connecting the frame to the top surface of the pile casing to ensure that the center of the channel is matched with the center of a pile hole;
b. connecting at least three support parts to the outer wall of the lower part of the first section of the reinforcement cage, wherein the width of each support part is matched with the distance between the reinforcement cage and the wall of the pile hole;
c. hoisting the reinforcement cage section by section;
d. and hoisting the last section of the steel reinforcement cage, installing at least three positioning parts on the side wall of the corresponding section, and then lowering the corresponding section to the designed elevation to complete the construction of the steel reinforcement cage.
By adopting the using method of the pile foundation reinforcement cage positioning device, the two ends of the reinforcement cage are respectively subjected to positioning control, so that the installation position of the reinforcement cage is more accurate, the reinforcement cage is conveniently positioned and corrected when being placed, the verticality adjusting difficulty is reduced, the construction safety is improved, the construction progress is accelerated, the reliability of pile foundation construction is ensured, the damage probability of the reinforcement cage is reduced, and the construction quality of a pile foundation is improved.
Preferably, the order of steps a and b can be interchanged or performed simultaneously.
In summary, compared with the prior art, the invention has the beneficial effects that:
1. by adopting the positioning device for the pile foundation reinforcement cage, disclosed by the invention, through respectively positioning the two ends of the upper end and the lower end of the reinforcement cage, the reinforcement cage is effectively prevented from deviating and inclining in the lowering process, the lowering precision of the reinforcement cage is improved, the verticality adjusting difficulty is reduced, the construction safety is improved, the damage of the reinforcement cage is reduced, the construction quality of the pile foundation is improved, the structure is simple, the cost is low, the use is convenient, and the construction period and the construction cost are favorably saved.
2. By adopting the construction method of the pile foundation reinforcement cage, the two ends of the reinforcement cage are respectively subjected to positioning control, so that the installation position of the reinforcement cage is more accurate, the reinforcement cage is conveniently positioned and corrected when being placed, the verticality adjusting difficulty is reduced, the construction safety is improved, the construction progress is accelerated, the reliability of pile foundation construction is ensured, the damage probability of the reinforcement cage is reduced, and the construction quality of a pile foundation is improved.
Drawings
Fig. 1 is a structural plan view of a positioning device for a pile foundation reinforcement cage according to the present invention;
FIG. 2 is a plan view showing the structure of the positioning device in use according to example 1;
FIG. 3 is a schematic structural view of the lower end of the reinforcement cage in the construction process of example 1;
fig. 4 is a schematic structural view of the upper end of the reinforcement cage in the construction process of embodiment 1.
The labels in the figure are: the steel bar cage comprises a frame 1, a support part 2, a rolling part 3, a steel bar cage 4, a connecting part 5, a hole wall 6, a protective cylinder 7 and a positioning part 8.
Detailed Description
The invention is described in further detail below with reference to the figures and the embodiments. It should be understood that the scope of the above-described subject matter is not limited to the following examples, and any techniques implemented based on the disclosure of the present invention are within the scope of the present invention.
Example 1
The invention relates to a positioning device of a pile foundation reinforcement cage, which comprises a frame 1 and supporting parts 2, wherein the inner hole of the frame 1 can be square, regular triangle or round, the frame 1 can also be made into a platform, so that workers can conveniently operate and place tools on the platform, at least three rolling parts 3 are arranged in the frame 1, a channel defined by all roller parts 3 is matched with the outer diameter of a reinforcement cage 4, the lowered reinforcement cage 4 is positioned by the at least three rolling parts 3, the reinforcement cage 4 can be directly in rolling contact with the rolling parts 3 when being lowered, sliding friction is replaced by rolling friction, the resistance in the lowering process is greatly reduced, the damage of the reinforcement cage 4 due to wall scraping is avoided, the outer wall of the lower part of the reinforcement cage 4 is connected with the at least three supporting parts 2, the support member 2 is used to locate the lower end of the reinforcement cage 4.
Specifically, as shown in fig. 1, the frame 1 is square, the frame 1 may be an existing square frame, or may be formed by welding four section steel members, such as i-beams and H-beams, which are simple and fast to install and remove, and have good stability, the rolling members 3 are respectively installed in the middle of four sides of the inner side of the frame 1, the rolling members 3 are steel pipes, the rotating shafts of the steel pipes are connected to the frame 1 through connecting members 5, the connecting members 5 may be steel bars, the steel bars are welded to the frame 1, and then the frame 1 is welded or fixed to the top surface of the casing 7 through ground anchors, as shown in fig. 2, the centers of the passages and the centers of the piles coincide, so as to ensure the positioning of the lowered reinforcement cage 4 in the opening.
Through right respectively the upper end and the lower extreme of steel reinforcement cage 4 carry out both ends location, effectively avoid steel reinforcement cage 4 to appear the skew slope transferring the in-process, improve the precision that steel reinforcement cage 4 was transferred, reduce and transfer the degree of difficulty of hanging down, improve the security of construction, reduce steel reinforcement cage 4's damage, improve the construction quality of pile foundation, simple structure, low cost, convenient to use is favorable to practicing thrift construction period and construction cost.
By adopting the positioning device for the pile foundation reinforcement cage in the embodiment, the construction method for the pile foundation reinforcement cage comprises the following steps:
a. at least three rolling parts 3 are connected in a frame 1, a channel defined by all the rolling parts 3 is matched with the outer diameter of a reinforcement cage 4, and the frame 1 is connected to the top surface of a pile casing 6, so that the center of the channel is matched with the center of a pile hole;
b. at least three support parts 2 are connected to the outer wall of the lower part of the first section of the reinforcement cage 4, and the width of each support part 2 is matched with the distance between the reinforcement cage 4 and the hole wall 6 of the pile hole;
c. hoisting the reinforcement cage 4 section by section;
d. and (4) hoisting the last section of the steel reinforcement cage 4, installing at least three positioning parts 8 on the side wall of the corresponding section, and then lowering the corresponding section to the designed elevation to complete the construction of the steel reinforcement cage 4.
The order of steps a and b can be interchanged or performed simultaneously.
Specifically, the steel pipes are respectively installed in the middles of four edges of the inner side of the frame 1, a channel defined by all the steel pipes is matched with the outer diameter of the reinforcement cage 4, and then the frame 1 is welded or fixed on the top surface of the pile casing 7 through a ground anchor, so that the center of the channel is overlapped with the center of the pile hole.
The muscle bottom outer wall connection of indulging of the first section of steel reinforcement cage 4 is all the ear muscle, the width adaptation of support component 2 steel reinforcement cage 4 with interval between the pore wall 6 to the ear muscle of the steel reinforcement cage 4 of guaranteeing to transfer can with the pore wall 6 carries out the contact location, as shown in fig. 3.
And then hoisting the steel reinforcement cage 4 in sections, aligning a first section with a channel surrounded by the rolling component 3, putting the first section into a pile hole, putting the pile hole to a corresponding height, penetrating at least two I-shaped steels under stirrups to hang the corresponding section of the steel reinforcement cage 4, butting a second section with the first section, wherein the main reinforcement connecting sections are arranged in a staggered manner during butting, the number of joints on the same section is not more than 50% of the number of main reinforcements, adopting sleeve connection, removing the I-shaped steels after the butting, continuously putting the steel reinforcement cage 4, slowly and uniformly putting the steel reinforcement cage 4, adjusting the verticality of the hole of the steel reinforcement cage 4 at any time according to the depth of the steel reinforcement cage, avoiding the steel reinforcement cage from inclining and swinging as much as possible, and then repeating the operation to hoist a third section and a fourth section … until the last section.
When transferring to last festival section, according to the size, the actual protective layer thickness that protect a section of thick bamboo 7 are in the top circumference equipartition welding of 4 corresponding sections of steel reinforcement cage three at least locating component 8, if adopt 4 spacer bar, as shown in fig. 4, guarantee 4 tops of steel reinforcement cage sink into break away from in the section of thick bamboo 7 positioner to the in-process of design elevation, the center at 4 tops of steel reinforcement cage still keeps the coincidence with the stake center, steel reinforcement cage 4 is transferred to design elevation after, the completion the construction of transferring of steel reinforcement cage 4.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. The utility model provides a positioner of pile foundation steel reinforcement cage, its characterized in that contains frame (1) and supporting component (2), be equipped with at least three rolling member (3) in frame (1), all the external diameter of passageway adaptation steel reinforcement cage (4) that drum part (3) enclose, the lower part outer wall of steel reinforcement cage (4) is connected with at least three supporting component (2), supporting component (2) are used for the location the lower extreme of steel reinforcement cage (4).
2. The positioning device according to claim 1, characterized in that said frame (1) is square, said frame (1) comprising four profiled steel members.
3. The positioning device according to claim 2, wherein said rolling members (3) are four in number, and said rolling members (3) are steel pipes.
4. A positioning device according to claim 3, characterized in that the steel tube is arranged in the middle of the corresponding side of the frame (1), and the rotation axis of the steel tube is connected to the frame (1) by means of a connecting part (5).
5. The positioning device according to claim 1, characterized in that the support part (2) comprises an ear rib which is welded to a longitudinal rib of the reinforcement cage (4).
6. The positioning device according to claim 5, characterized in that the support members (2) are evenly distributed circumferentially along the reinforcement cage (4), the width of the support members (2) being adapted to the spacing between the reinforcement cage (4) and the bore wall (6) of the pile bore.
7. A positioning device according to claim 6, characterized in that the reinforcement cage (4) comprises several segments, all the support members (2) being connected to the bottom of the first of said segments.
8. A positioning device according to any of claims 1-7, characterized in that the frame (1) is attached to the top surface of the casing (7).
9. A construction method of a pile foundation reinforcement cage is characterized by comprising the following steps:
a. at least three rolling parts (3) are connected in a frame (1), a channel defined by all the rolling parts (3) is matched with the outer diameter of a reinforcement cage (4), the frame (1) is connected to the top surface of a pile casing (6), and the center of the channel is matched with the center of a pile hole;
b. at least three support parts (2) are connected to the outer wall of the lower part of the first section of the reinforcement cage (4), and the width of each support part (2) is matched with the distance between the reinforcement cage (4) and the wall (6) of the pile hole;
c. hoisting the reinforcement cage (4) section by section;
d. and (4) hoisting the last section of the steel reinforcement cage (4), installing at least three positioning parts (8) on the side wall of the corresponding section, and then lowering the corresponding section to the designed elevation to complete the construction of the steel reinforcement cage (4).
10. The method for using the positioning device of the pile foundation reinforcement cage according to claim 9, wherein the sequence of the steps a and b can be interchanged or performed simultaneously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010023854.7A CN111119189A (en) | 2020-01-09 | 2020-01-09 | Pile foundation reinforcement cage positioning device and pile foundation reinforcement cage construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010023854.7A CN111119189A (en) | 2020-01-09 | 2020-01-09 | Pile foundation reinforcement cage positioning device and pile foundation reinforcement cage construction method |
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| Publication Number | Publication Date |
|---|---|
| CN111119189A true CN111119189A (en) | 2020-05-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010023854.7A Pending CN111119189A (en) | 2020-01-09 | 2020-01-09 | Pile foundation reinforcement cage positioning device and pile foundation reinforcement cage construction method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112431203A (en) * | 2020-11-30 | 2021-03-02 | 成都悦鉴科技有限公司 | Method for lowering super-long prefabricated reinforcement cage |
| CN113309119A (en) * | 2021-07-06 | 2021-08-27 | 中建三局集团有限公司 | Construction method for constructing inclined pile by mud retaining wall |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203625890U (en) * | 2013-10-31 | 2014-06-04 | 中铁港航局集团有限公司 | Large-diameter cast-in-situ bored pile reinforcement cage positioning device |
| CN205475204U (en) * | 2016-02-23 | 2016-08-17 | 宏润建设集团股份有限公司 | Locator for steel reinforcement cage is transferred to drilling bored concrete pile |
| CN207260137U (en) * | 2017-10-16 | 2018-04-20 | 中铁十二局集团第一工程有限公司 | Large Bored Piles pile foundation steel bar cage mounting and positioning device |
| CN109610458A (en) * | 2019-01-15 | 2019-04-12 | 五冶集团上海有限公司 | A kind of manually digging hole filling pile steel reinforcement cage deviation preventing mean and its application method |
| CN211849456U (en) * | 2020-01-09 | 2020-11-03 | 中铁十局集团第五工程有限公司 | Pile foundation reinforcement cage positioning device |
-
2020
- 2020-01-09 CN CN202010023854.7A patent/CN111119189A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203625890U (en) * | 2013-10-31 | 2014-06-04 | 中铁港航局集团有限公司 | Large-diameter cast-in-situ bored pile reinforcement cage positioning device |
| CN205475204U (en) * | 2016-02-23 | 2016-08-17 | 宏润建设集团股份有限公司 | Locator for steel reinforcement cage is transferred to drilling bored concrete pile |
| CN207260137U (en) * | 2017-10-16 | 2018-04-20 | 中铁十二局集团第一工程有限公司 | Large Bored Piles pile foundation steel bar cage mounting and positioning device |
| CN109610458A (en) * | 2019-01-15 | 2019-04-12 | 五冶集团上海有限公司 | A kind of manually digging hole filling pile steel reinforcement cage deviation preventing mean and its application method |
| CN211849456U (en) * | 2020-01-09 | 2020-11-03 | 中铁十局集团第五工程有限公司 | Pile foundation reinforcement cage positioning device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112431203A (en) * | 2020-11-30 | 2021-03-02 | 成都悦鉴科技有限公司 | Method for lowering super-long prefabricated reinforcement cage |
| CN113309119A (en) * | 2021-07-06 | 2021-08-27 | 中建三局集团有限公司 | Construction method for constructing inclined pile by mud retaining wall |
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