CN110629748B - A cast-in-place pile steel cage anti-floating structure - Google Patents
A cast-in-place pile steel cage anti-floating structure Download PDFInfo
- Publication number
- CN110629748B CN110629748B CN201910953848.9A CN201910953848A CN110629748B CN 110629748 B CN110629748 B CN 110629748B CN 201910953848 A CN201910953848 A CN 201910953848A CN 110629748 B CN110629748 B CN 110629748B
- Authority
- CN
- China
- Prior art keywords
- cast
- slot
- steel cage
- floating
- support rod
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- 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
- E02D5/38—Concrete or concrete-like piles cast in position ; Apparatus for making same making by use of mould-pipes or other moulds
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/80—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in fisheries management
- Y02A40/81—Aquaculture, e.g. of fish
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (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)
- Piles And Underground Anchors (AREA)
Abstract
一种灌注桩钢筋笼抗浮结构，包括灌注平台、导管、钢筋笼和抗浮装置，灌注平台与导管连接，导管穿入到钢筋笼中，所述抗浮装置包括上部抱箍、下部抱箍、斜向支撑杆、横向支撑杆和卡槽，上部抱箍通过斜向支撑杆与卡槽连接，同时，下部抱箍通过横向支撑杆与卡槽连接，上部抱箍、下部抱箍和卡槽之间形成三角形结构，上部抱箍和下部抱箍分别安装在导管上，卡槽套装在钢筋笼的主筋顶部上。本发明适用于不同孔深的桩基施工，适用性强，同时解决了抗浮装置与钢筋笼对接精度要求高，以及长立杆易变形影响抗浮效果的问题，且能够反复装拆使用，成本低，循环利用率高。
A cast-in-place pile steel cage anti-floating structure comprises a cast-in-place platform, a conduit, a steel cage and an anti-floating device, wherein the cast-in-place platform is connected to the conduit, the conduit penetrates into the steel cage, the anti-floating device comprises an upper clamp, a lower clamp, an oblique support rod, a transverse support rod and a slot, the upper clamp is connected to the slot through the oblique support rod, and at the same time, the lower clamp is connected to the slot through the transverse support rod, a triangular structure is formed between the upper clamp, the lower clamp and the slot, the upper clamp and the lower clamp are respectively installed on the conduit, and the slot is sleeved on the top of the main reinforcement of the steel cage. The present invention is suitable for pile foundation construction with different hole depths, has strong applicability, and solves the problems of high precision requirements for docking the anti-floating device with the steel cage, and the problem that the long vertical pole is easy to deform and affects the anti-floating effect, and can be repeatedly assembled and disassembled for use, with low cost and high recycling rate.
Description
Technical Field
The invention relates to the field of pile foundation construction, in particular to an anti-floating structure for preventing a reinforcement cage from floating upwards.
Background
When the reinforced concrete cast-in-place pile is used for pouring concrete, the concrete starts to rise along the periphery of the pile hole from the bottom of the pile hole through the long guide pipe, the reinforced cage can float up under the impact force or floating force of the rising concrete, so that the main reinforcement of the reinforced cage exceeds the designed pile top elevation to generate a series of quality problems, especially when the pile foundation with deep empty piles is constructed, the condition that the reinforced cage floats up is more obvious, the reinforced cage is shifted, the leaked reinforced bars are overlong and serious, and even the waste piles are caused, so that the reinforced cage is stabilized before the guide pipe is dismounted for the first time, and then the subsequent concrete casting is continued.
In the application of pile foundation steel reinforcement cage anti-floating structure, generally adopt two or more reinforcing bars or hard material as the pole setting at present, the upper end fixed lock of pole setting is dead on the inner wall of steel casing or in the grid of the both sides of filling platform flange frame, then the top hoop of steel reinforcement cage is locked through fork arm or buckle to the other end of pole setting, even entangles the main muscle of steel reinforcement cage through welding top confined steel pipe, is fixed with the external world through the upper end of pole setting like this, and the lower extreme is fixed with the steel reinforcement cage and prevents the come-up of steel reinforcement cage.
The existing reinforcement cage anti-floating structure has the following defects, particularly in the application of deep hole ultra-long piles, the problems are more remarkable, namely, in the pile foundation construction of different depths, the applicability of the existing reinforcement cage anti-floating mode is not strong, the recycling rate is low, in the pile foundation construction of a longer hollow pile, longer vertical rods are needed, the material is steel bars, the usage amount is large, the reinforcement cage anti-floating structure is heavy and easy to deform when subjected to larger buoyancy, the anti-floating effect cannot be achieved, the lower ends of the vertical rods are sleeved on the main bars of the reinforcement cage through buckles or steel pipes, and in the construction of the bored pile of a mud retaining wall, the required precision is high, and the quick anastomosis connection with the main bars of the reinforcement cage is difficult to ensure.
Disclosure of Invention
The invention aims to solve the technical problems, provides the anti-floating structure of the bored concrete pile reinforcement cage, which is suitable for pile foundation construction with different hole depths, has strong applicability, solves the problems that the anti-floating device and the reinforcement cage are high in butt joint precision requirement and the long vertical rod is easy to deform to influence the anti-floating effect, can be repeatedly assembled and disassembled for use, and has low cost and high recycling rate.
In order to achieve the purpose of the invention, the technical scheme adopted is as follows:
The utility model provides an anti structure that floats of bored concrete pile steel reinforcement cage, including filling platform, pipe, steel reinforcement cage and anti device that floats, filling platform and pipe connection, the pipe penetrates in the steel reinforcement cage, anti device that floats includes upper portion staple bolt, lower part staple bolt, diagonal bracing pole, horizontal bracing piece and draw-in groove, upper portion staple bolt passes through diagonal bracing pole and is connected with the draw-in groove, simultaneously, the lower part staple bolt passes through horizontal bracing piece and is connected with the draw-in groove, form triangle-shaped structure between upper portion staple bolt, lower part staple bolt and the draw-in groove, upper portion staple bolt and lower part staple bolt are installed respectively on the pipe, the draw-in groove suit is on the cage top of steel reinforcement cage.
As a further improvement of the invention, the upper anchor ear, the lower anchor ear and the clamping groove are in right triangle structures.
As a further improvement of the invention, the main ribs of the reinforcement cage are arranged circumferentially, the whole clamping groove is of an arc structure matched with at least two adjacent main ribs, and the length of the clamping groove can cover the tops of the at least two main ribs.
As a further improvement of the invention, at least two clamping grooves are arranged, and the clamping grooves are circumferentially and equidistantly arranged along the main rib of the reinforcement cage.
As a further improvement of the invention, the cross section of the clamping groove is in an arc-shaped, triangular or inverted concave structure.
The invention further comprises a groove supporting rod, wherein the clamping grooves are connected through the groove supporting rod.
As a further improvement of the invention, the upper anchor ear and the lower anchor ear are composed of two symmetrical semi-rings, and the two semi-rings are fixed by bolts.
As a further development of the invention, the filling platform comprises a hopper and a flange frame, the hopper is fixed on the flange frame, and the bottom of the hopper is connected with the guide pipe.
As a further improvement of the invention, the flange frame is provided with a weight.
As a further improvement of the invention, the steel cage is positioned in the steel casing, and the pouring platform is fixed on the top of the steel casing.
The beneficial effects of the invention are as follows:
1. The applicability is strong. In the invention, the upper anchor ear and the lower anchor ear of the anti-floating device are arranged on the guide pipe, are not influenced by the hole depth, do not need to select the upright rods with different lengths according to the hole depth to resist floating, and can be suitable for pile foundation construction with different hole depths.
2. And the construction quality is guaranteed. The anti-floating device can effectively prevent the steel reinforcement cage from floating upwards through the guide pipe, the pouring platform and the dead weight of the concrete during pouring, and the acting force of the anti-floating device and the guide pipe is fully exerted. The upper hoop, the lower hoop and the clamping groove of the anti-floating device form a triangular structure, the anti-floating device has the characteristics of stable structure and difficult deformation, and because the anti-floating device is arranged on the guide pipe, the inclined support rods and the transverse support rods adopted for connecting the inner parts of the anti-floating device are much shorter than the vertical rods in the prior art, the long vertical rods are not required to be adopted to press the reinforcement cage, and the problem that the deformation of the vertical rods influences the construction quality of pile foundations when the long vertical rods are subjected to larger buoyancy is avoided.
3. The requirements on the butting precision are low, and the butting is efficient and convenient. Compared with the prior art, the anti-floating device is in butt joint with the main reinforcement of the reinforcement cage through the clamping groove, the requirement on the butt joint precision is low, the butt joint time can be effectively reduced, the anti-floating device is connected and regulated through the guide pipe, the on-site operation efficiency is high, and the delay of the construction period due to the assembly and disassembly problems of the anti-floating device is avoided.
4. The economic effect is high. The anti-floating device can be manufactured on the construction site by taking materials locally, is simple to manufacture and convenient to use, does not need to use a large amount of steel, can be disassembled for recycling, and saves a large amount of material cost for engineering.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is a schematic diagram of an anti-floating device according to the present invention;
FIG. 3 is a schematic diagram of a second embodiment of the anti-floating device according to the present invention;
The mark shows that the device comprises a 1-steel casing, a 2-pouring platform, a 21-hopper, a 22-flange frame, a 23-counterweight, a 3-conduit, a 4-reinforcement cage, a 41-main reinforcement, a 5-anti-floating device, a 51-upper anchor ear, a 52-lower anchor ear, a 53-oblique support rod, a 54-transverse support rod, a 55-clamping groove and a 56-inter-groove support rod.
Detailed Description
The invention will be further described with reference to specific examples and figures.
The underground station project in Guangzhou city is characterized in that a large number of anti-pulling piles are designed on the lower portion of the station structure bottom plate, the designed piles are 12m long, the construction is needed to be carried out on the ground for the construction period, namely, the designed hole depth is 32m, the empty pile portion is 20m deep, the steel reinforcement cage of the anti-pulling piles is light, the empty pile is deep, the hollow section is free from any resistance, the steel reinforcement cage is easy to float when concrete is poured, the problem of floating of the steel reinforcement cage can be effectively solved by using the steel reinforcement cage anti-floating device, the construction quality of pile foundations is guaranteed, the site operation efficiency is improved, and the construction cost is reduced.
As shown in fig. 1 to 3, a pile cage 4 anti-floating structure,
The utility model provides an anti structure that floats of bored concrete pile steel reinforcement cage 4, includes steel pile casing 1, filling platform 2, pipe 3, steel reinforcement cage 4 and anti device that floats 5, and anti device that floats 5 includes upper portion staple bolt 51, lower part staple bolt 52, diagonal bracing piece 53, horizontal bracing piece 54 and draw-in groove 55.
The steel reinforcement cage 4 is arranged in the steel casing 1, the pouring platform 2 comprises a hopper 21 and a flange frame 22, the hopper 21 is fixed on the flange frame 22, the flange frame 22 is fixed at the top of the steel casing 1, the bottom of the hopper 21 is connected with the guide pipe 3, and the guide pipe 3 penetrates into the steel reinforcement cage 4. The main ribs 41 of the reinforcement cage 4 are circumferentially arranged, the number of the clamping grooves 55 is four, the clamping grooves 55 are made of thin steel plates, the whole clamping grooves 55 are of arc structures matched with three adjacent main ribs 41, and the top parts of the three main ribs 41 can be sleeved with the lengths of the clamping grooves 55. The cross section of the clamping groove 55 is in an arc-shaped, triangular or inverted concave structure, and in this embodiment, the cross section of the clamping groove 55 is preferably in an inverted concave structure. The four clamping grooves 55 are circumferentially and equidistantly arranged along the main rib 41 of the reinforcement cage 4. The upper anchor ear 51 is connected with the clamping groove 55 through the oblique support rod 53, and simultaneously, the lower anchor ear 52 is connected with the clamping groove 55 through the transverse support rod 54, and a firm and stable right triangle structure is formed among the upper anchor ear 51, the lower anchor ear 52 and the clamping groove 55. The upper anchor ear 51 and the lower anchor ear 52 are composed of two symmetrical semi-rings, the two semi-rings are fixed by bolts, each semi-ring is connected with two clamping grooves 55, a support rod 56 between grooves is connected between the two clamping grooves 55, and the structural strength is further improved by the support rod 56 between grooves. This anti device that floats 5 is closed through the split between the semi-ring to and unscrew tightening bolt, makes upper portion staple bolt 51 and lower part staple bolt 52 can install on pipe 3, and can slide on pipe 3 in order to carry out the regulation of degree of depth, through the regulation of degree of depth, makes draw-in groove 55 can the suit at the main muscle 41 top of steel reinforcement cage 4.
When the anti-floating device 5 is used for construction, the total length of the guide pipe 3 to be lowered and the node depth of the anti-floating device 5 to be lowered are calculated according to the actual hole depth, the elevation of the steel casing 1, the elevation of the designed pile top and the like. According to the actual depth from the hole degree to the top end of the reinforcement cage 4, the depth position of the anti-floating device 5 to be installed is calculated, the guide pipes 3 are gradually lowered by combining the guide pipes 3 with different section lengths, when the guide pipes 3 are lowered to the node depth of the anti-floating device 5, the anti-floating device 5 is installed on the guide pipes 3 through the upper anchor ear 51 and the lower anchor ear 52, and then the rest guide pipes 3 are continuously lowered until the clamping grooves 55 are sleeved on the top of the main ribs 41 of the reinforcement cage 4. When concrete is poured, the pouring speed needs to be controlled, the anti-floating device 5 prevents the steel reinforcement cage 4 from floating upwards by utilizing the self weight of the hopper 21, the guide pipe 3, the flange frame 22 and the concrete in the hopper 21, and if necessary, a proper amount of weight 23 is arranged on the flange frame 22 according to the actual condition of buoyancy so as to meet the anti-floating requirement. Before the conduit 3 is removed for the first time, the height of the poured concrete (generally 3-5 m) is enough to stabilize the reinforcement cage 4, the reinforcement cage is prevented from floating, the conduit 3 and the concrete are required to be buried deeply each time, the problem of pile foundation quality is avoided, the conduit 3 is continuously removed section by section along with the lifting of the pouring height of the concrete until the anti-floating device 5 is removed, the anti-floating device 5 is separated and taken out in advance by loosening bolts, and finally the rest conduit 3 is removed along with the completion of pouring.
In summary, the present invention has been described and illustrated in the specification, and has been made into practical samples and tested for multiple uses, and from the effect of the use test, it can be proved that the present invention can achieve its intended purpose, and the practical value is undoubted. The above embodiments are only for illustrating the present invention, and are not to be construed as limiting the invention in any way, and any person having ordinary skill in the art will realize that equivalent embodiments of partial changes and modifications can be made by using the disclosed technology without departing from the scope of the technical features of the present invention.
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910953848.9A CN110629748B (en) | 2019-10-09 | 2019-10-09 | A cast-in-place pile steel cage anti-floating structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910953848.9A CN110629748B (en) | 2019-10-09 | 2019-10-09 | A cast-in-place pile steel cage anti-floating structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110629748A CN110629748A (en) | 2019-12-31 |
| CN110629748B true CN110629748B (en) | 2025-05-16 |
Family
ID=68975842
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910953848.9A Active CN110629748B (en) | 2019-10-09 | 2019-10-09 | A cast-in-place pile steel cage anti-floating structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110629748B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111809614B (en) * | 2020-08-25 | 2024-10-29 | 中国五冶集团有限公司 | Pile foundation reinforcement cage anti-floating device and bored pile construction method |
| CN113502808B (en) * | 2021-06-30 | 2022-02-01 | 天津市建筑构件工程有限公司 | Pile foundation reinforcement cage anti-floating device and anti-floating method |
| CN113668514B (en) * | 2021-08-02 | 2023-01-10 | 深圳宏业基岩土科技股份有限公司 | Concrete pouring construction method for ultra-large-diameter rotary pile for preventing steel reinforcement cage floating cage |
| CN113668508B (en) * | 2021-08-02 | 2023-01-10 | 深圳宏业基岩土科技股份有限公司 | Anti-floating structure for anti-steel reinforcement cage floating cage |
| CN114991126B (en) * | 2022-04-27 | 2024-03-19 | 中国建筑技术集团有限公司 | Non-prestress post-inserted composite anchor cable anti-pulling pile construction equipment |
| CN115928715B (en) * | 2022-12-01 | 2024-05-03 | 中交二公局第三工程有限公司 | Device for preventing cast-in-place pile reinforcement cage from floating upwards |
| CN116988475B (en) * | 2023-07-31 | 2025-10-21 | 中交第二航务工程局有限公司 | Device and method for improving the casting quality of underwater bored pile inclined pile foundation |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN211113613U (en) * | 2019-10-09 | 2020-07-28 | 粤水电轨道交通建设有限公司 | Anti structure that floats of bored concrete pile steel reinforcement cage |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08177044A (en) * | 1994-12-21 | 1996-07-09 | Ando Corp | Construction method of cast-in-place concrete pile and formwork device for forming pile head used in the construction method |
| CN205804334U (en) * | 2016-06-03 | 2016-12-14 | 中国十七冶集团有限公司 | A kind of casing preventing Lift-up of Bored Pile Reinforcement Cage |
| CN207862921U (en) * | 2017-08-18 | 2018-09-14 | 云南省建设投资控股集团有限公司 | A kind of recyclable deep hole pile cages anti-floating and hanging apparatus |
| CN109610446A (en) * | 2018-12-17 | 2019-04-12 | 中国十七冶集团有限公司 | A kind of borehole filling pile cage of reinforcement and anti-floating cage method |
-
2019
- 2019-10-09 CN CN201910953848.9A patent/CN110629748B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN211113613U (en) * | 2019-10-09 | 2020-07-28 | 粤水电轨道交通建设有限公司 | Anti structure that floats of bored concrete pile steel reinforcement cage |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110629748A (en) | 2019-12-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110629748B (en) | A cast-in-place pile steel cage anti-floating structure | |
| CN108842791B (en) | Detachable load pile anchor multistage supporting structure and construction method | |
| CN105804093B (en) | Prefabricated double-row pile foundation pit supporting construction integrated with water-stop curtain and its construction method | |
| CN110158633B (en) | Prefabricated pier slab beam type foundation of lattice type concrete wind power tower | |
| CN218933837U (en) | Reinforcement structure of elevator shaft and sump pit with hanging formwork in raft foundation | |
| CN210066493U (en) | Hoop mold for trestle hanging mold construction | |
| CN207295746U (en) | A kind of bucket foundation steel sheet pile combined type cofferdam | |
| CN220394631U (en) | Pile-to-pile inclined inserting plate-anchor rod assembled retaining wall | |
| CN212452695U (en) | Novel deep foundation pit side slope supporting structure | |
| CN209779640U (en) | foundation pit supporting pile top crown beam construction structure | |
| CN210134451U (en) | Steel-pipe pile basis of aquatic tower crane | |
| CN211113613U (en) | Anti structure that floats of bored concrete pile steel reinforcement cage | |
| CN208328968U (en) | A kind of upper stake suitable for large-scale cyclic load is casted anchor novel foundation | |
| CN103061334B (en) | I-section prestressed reinforced concrete support pile by centrifugal pouring | |
| CN111663521A (en) | Club-footed pile for building immersed tube | |
| CN116641412A (en) | Electric power steel pipe pole cushion cap basis | |
| CN115748593A (en) | Construction method of double-row prestressed pipe pile hanging plate continuous wall | |
| CN211735364U (en) | Prefabricated prefabricated retaining wall artificial digging pile | |
| CN211036971U (en) | Civil engineering back joint bar anti-floating uplift pile | |
| CN210002433U (en) | device for controlling lapping length of steel upright and steel reinforcement cage in upright pile | |
| CN209723019U (en) | An assembly type cascaded prefabricated pile foundation structure for transmission towers | |
| CN108442406B (en) | Semi-reverse construction method foundation pit inner supporting structure and construction method thereof | |
| CN219671371U (en) | Composite soil nailing wall with inclined piles | |
| CN223824448U (en) | Foundation column structure with steel structure for civil engineering | |
| CN223867736U (en) | An extended support leg for a power transmission tower |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |