CN111021364A - Foundation pit supporting device - Google Patents
Foundation pit supporting device Download PDFInfo
- Publication number
- CN111021364A CN111021364A CN201911251915.9A CN201911251915A CN111021364A CN 111021364 A CN111021364 A CN 111021364A CN 201911251915 A CN201911251915 A CN 201911251915A CN 111021364 A CN111021364 A CN 111021364A
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- Prior art keywords
- embedded
- reinforcement
- steel bars
- steel
- bar
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- 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.)
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Links
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 107
- 239000010959 steel Substances 0.000 claims abstract description 107
- 230000002787 reinforcement Effects 0.000 claims abstract description 43
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 30
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims description 9
- 238000004873 anchoring Methods 0.000 claims description 4
- 238000010276 construction Methods 0.000 abstract description 14
- 230000002411 adverse Effects 0.000 abstract description 2
- 230000000694 effects Effects 0.000 abstract description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 210000003205 muscle Anatomy 0.000 description 2
- 239000003292 glue Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/02—Foundation pits
- E02D17/04—Bordering surfacing or stiffening the sides of foundation pits
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- 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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- 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
- E02D5/48—Piles varying in construction along their length, i.e. along the body between head and shoe, e.g. made of different materials along their length
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- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Piles And Underground Anchors (AREA)
Abstract
The invention discloses a foundation pit supporting device which comprises a supporting pile and a bracket, wherein a reinforcement cage is arranged in the supporting pile, a reinforcement member is arranged in the reinforcement cage, a first reinforcement which is connected with the reinforcement member is arranged in the bracket, the reinforcement member comprises a first embedded reinforcement and a first embedded spare reinforcement, and a distance S is vertically arranged between a connection end of the first embedded reinforcement corresponding to the same connection end of the first reinforcement and a connection end of the first embedded spare reinforcement. The problem of vertical difficult when underground space reinforcing bar is pre-buried has been solved to first embedded reinforcing bar of design and first pre-buried reserve reinforcing bar, and the deviation appears in pre-buried reinforcing bar position, can change into reserve reinforcing bar to plug into, effectively solves the adverse effect that the vertical positioning deviation of steel reinforcement cage brought. The invention has reasonable structure and convenient construction, and can be widely applied to the technical field of building foundation pit engineering.
Description
Technical Field
The invention relates to the technical field of building foundation pit engineering, in particular to a foundation pit supporting device.
Background
In recent years, with the rapid development of urban construction, the rapid development of domestic high-rise buildings and the full utilization of underground space, the design and construction problems of deep foundation pit supporting engineering become hot problems in foundation engineering. The scale of deep foundation pit engineering is also increasing year by year, so that various problems related to the design of deep foundation pit supporting structures are also developed. In most cases, a supporting pile supporting structure belongs to a common supporting form, and generally, the supporting pile supporting structure has the characteristics of quick construction and simple construction process so as to shorten the construction period to a great extent. By far, a support pile support structure has become one of the preferred schemes for a deep foundation pit support structure.
For underground structures that use pile foundations as the foundation, more foundation piles are often deployed on the floor of the structure. When the support pile is used as a foundation pit support form, the pile foundation at the edge of a pile foundation bearing platform of the structure is often very close to the support pile, the support pile is often buried underground as a permanent structure, and if the support pile is used as the permanent pile foundation at the edge of a bottom plate of the structure, the construction cost of foundation engineering of the structure is effectively reduced, and good economic benefit is brought. Therefore, in order to fully utilize the support piles as the foundation of the structure, the invention needs to invent a bracket supporting system which can provide vertical support for the structure, fully utilize the support piles and save the total construction cost of the project.
However, the embedded steel bars in the commonly used supporting piles are difficult to solve the problem of deviation of the steel bars during embedding, if the steel bars are deviated, the supporting piles cannot be adjusted after pouring, and if the supporting piles are connected with brackets, later-stage bar planting can be relied on, but the bar planting can possibly damage the supporting structure, the service life of the bar planting glue is 50 years at most, and the service life of some engineering designs is 100 years, so that the scheme of later-stage bar planting cannot meet the requirement of the design life.
Disclosure of Invention
In order to solve at least one of the technical problems and avoid the inconvenience of connection caused by the embedded deviation of the steel bars, the invention provides a foundation pit supporting device, which adopts the following technical scheme:
the foundation pit supporting device provided by the invention comprises a supporting pile and a bracket, wherein a reinforcement cage is arranged in the supporting pile, a reinforcement member is arranged in the reinforcement cage, a first reinforcement which is connected with the reinforcement member is arranged in the bracket, the reinforcement member comprises a first embedded reinforcement and a first embedded spare reinforcement, and a distance S is vertically arranged between a connection end of the first embedded reinforcement corresponding to the same connection end of the first reinforcement and a connection end of the first embedded spare reinforcement.
Furthermore, the first reinforcing steel bar is provided with two connection ends, and the two connection ends of the first reinforcing steel bar are arranged up and down.
Furthermore, the number of the first embedded steel bars corresponding to each connection end of the first steel bars is one, the number of the first embedded spare steel bars corresponding to each connection end of the first steel bars is two, and the connection end of each first embedded steel bar is located between the connection ends of the two first embedded spare steel bars.
Furthermore, the first embedded steel bars and the first embedded spare steel bars are bent into L shapes.
Furthermore, the chiseling surface is used as a boundary, the horizontal anchoring depth of the first embedded steel bar is not less than 15d, the length of the vertical hook is not less than 20d, and d is the diameter of the first embedded steel bar.
Furthermore, a second embedded steel bar is arranged in the steel bar cage, a second steel bar which is connected with the second embedded steel bar is arranged in the bracket, the second steel bar is provided with two connecting ends, and the two connecting ends of the second steel bar are arranged in a left-right mode.
Further, the second embedded steel bar is provided with two connection ends.
Has the advantages that: the problem of vertical positioning difficulty when underground space reinforcing bar is pre-buried has been solved to first pre-buried reinforcing bar of design and first pre-buried reserve reinforcing bar, and the deviation appears in pre-buried reinforcing bar position, can change into reserve reinforcing bar to plug into, effectively solves the adverse effect that the vertical positioning deviation of steel reinforcement cage brought. The invention has reasonable structure and convenient construction, and can be widely applied to the technical field of building foundation pit engineering.
Drawings
FIG. 1 is a schematic structural view of a foundation pit supporting device;
fig. 2 is a layout view of a first embedded steel bar, a first embedded spare steel bar and a first steel bar;
fig. 3 is a layout diagram of the connection ends of the first embedded steel bars, the first embedded spare steel bars and the second embedded steel bars on the side surface of the support pile;
FIG. 4 is a layout view of first and second reinforcing bars;
fig. 5 is a schematic structural view of a second embedded steel bar and a second steel bar;
fig. 6 is a schematic structural diagram of the first embedded steel bar, the first embedded spare steel bar and the first steel bar.
Detailed Description
The present invention will be further described with reference to fig. 1 to 6.
The invention relates to a foundation pit supporting device which comprises a supporting pile 11 and a bracket 12, wherein the bracket 12 is used for supporting a structure, the bracket 12 is hung on the side surface of the supporting pile 11, the supporting pile 11 and the bracket 12 bear vertical force together, the bearing force is clear, and the rigidity is higher. Arrange steel reinforcement cage 13 in the fender pile 11, steel reinforcement cage 13 has arranged the steel reinforcement component, and the steel reinforcement component passes through positioning reinforcement and steel reinforcement cage 13 ligature fixed. The bracket 12 is provided with a first reinforcing bar 14 connected with the reinforcing bar members, and the number of the first reinforcing bar 14 and the reinforcing bar members is multiple. The first reinforcing bar 14 is a top-bottom main reinforcing bar, the first reinforcing bar 14 has two connection ends, and the two connection ends of the first reinforcing bar 14 are arranged one above the other, that is, the first reinforcing bar 14 is bent in a vertical plane.
Second embedded steel bars 18 are arranged in the steel reinforcement cage 13, the second embedded steel bars 18 are side steel bars, second steel bars 17 connected with the second embedded steel bars 18 are arranged in the brackets 12, the second steel bars 17 are side steel bars, the second steel bars 17 are provided with two connecting ends, the two connecting ends of the second steel bars 17 are arranged in a left-right mode, and the second steel bars 17 are bent in the horizontal plane. The second embedded steel bars 18 have two connection ends, and the two connection ends of the second embedded steel bars 18 are respectively connected with the two connection ends of the second steel bars 17. The first reinforcing steel bars 14 and the second reinforcing steel bars 17 combined transversely and longitudinally form a reinforcing steel bar framework of the bracket 12.
The reinforcing bar component includes first embedded steel bar 15 and first embedded spare reinforcing bar 16, and first embedded steel bar 15 is top end owner muscle, and first embedded spare reinforcing bar 16 is reserve top end owner muscle, and reinforcing bar component is constituteed through the mode of spot welding to first embedded steel bar 15 and first embedded spare reinforcing bar 16. The connection end of the first embedded steel bar 15 and the connection end of the first embedded spare steel bar 16 corresponding to the same connection end of the first steel bar 14 are vertically provided with a space S, and the space S can be adjusted according to construction errors. Typically, the first reinforcement bar 14 is connected to the first embedded reinforcement bar 15, and if the reinforcement cage 13 is vertically positioned, the first reinforcement bar 14 may be connected to the first embedded spare reinforcement bar 16 instead.
During construction, the steel bar component sinks along with the steel bar cage 13, after the supporting pile 11 is poured, a foundation pit is excavated, then the connection ends of the first embedded steel bars 15, the first embedded spare steel bars 16 and the second embedded steel bars 18 are chiseled out from the side surface of the supporting pile 11, the first steel bars 14 and the second steel bars 17 are respectively connected, and steel bar connection of the bracket 12 is completed. And then the bracket 12 is poured, so that the foundation scale can be effectively reduced, and the total construction cost of the project is reduced.
The number of the first embedded steel bars 15 corresponding to each connection end of the first steel bars 14 is one, the number of the first embedded spare steel bars 16 corresponding to each connection end of the first steel bars 14 is two, and the connection end of the first embedded steel bar 15 is located between the connection ends of the two first embedded spare steel bars 16. The first reinforcement 14 can be docked with the corresponding first embedded spare reinforcement 16 regardless of whether the reinforcement cage 13 is biased upwardly or downwardly.
And reinforcing steel bar connectors 19 are respectively arranged at the connection ends of the reinforcing steel bars.
The first embedded steel bars 15 and the first embedded spare steel bars 16 are bent into an L shape and welded into an integral steel bar component. The chiseling surface is used as a boundary, the horizontal anchoring depth of the first embedded steel bars 15 is not less than 15d, the length of the vertical hooks is not less than 20d, d is the diameter of the first embedded steel bars 15, and the chiseling depth is 5 cm.
During construction, a first embedded steel bar 15, a first embedded spare steel bar 16, a second embedded steel bar 18 and a steel bar connector 19 are embedded in advance, wherein the embedding depth of the first embedded steel bar 15, the first embedded spare steel bar 16 and the second embedded steel bar 18 is as small as possible on the premise that the standard anchoring requirement is met, a lower conduit space which is not less than 50cm is ensured in the steel bar cage 13, and a sufficient space is reserved for conduit concrete pouring construction.
While the embodiments of the present invention have been described in detail with reference to the drawings, the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.
Claims (7)
1. The utility model provides a foundation ditch strutting arrangement which characterized in that: including fender pile (11) and bracket (12), arranged steel reinforcement cage (13) in fender pile (11), the reinforcing bar component has been arranged in steel reinforcement cage (13), arrange first reinforcing bar (14) of plugging into with the reinforcing bar component in bracket (12), the reinforcing bar component includes first embedded steel bar (15) and first pre-buried spare reinforcement (16), the end of plugging into of the first embedded steel bar (15) that corresponds the same end of plugging into of first reinforcing bar (14) and the end of plugging into of first pre-buried spare reinforcement (16) have interval S in the vertical.
2. The foundation pit supporting device according to claim 1, wherein: the first reinforcing steel bar (14) is provided with two connection ends, and the two connection ends of the first reinforcing steel bar (14) are arranged up and down.
3. The foundation pit supporting device according to claim 2, wherein: the number of the first embedded steel bars (15) corresponding to each connection end of the first steel bars (14) is one, the number of the first embedded spare steel bars (16) corresponding to each connection end of the first steel bars (14) is two, and the connection end of each first embedded steel bar (15) is located between the connection ends of the two first embedded spare steel bars (16).
4. The foundation pit supporting device according to claim 1, wherein: the first embedded steel bars (15) and the first embedded spare steel bars (16) are bent into L shapes.
5. The foundation pit supporting device according to claim 4, wherein: the chiseling surface is used as a boundary, the horizontal anchoring depth of the first embedded steel bars (15) is not less than 15d, the length of the vertical hooks is not less than 20d, and d is the diameter of the first embedded steel bars (15).
6. The foundation pit supporting device according to claim 1, wherein: second embedded steel bars (18) are arranged in the steel bar cage (13), second steel bars (17) connected with the second embedded steel bars (18) are arranged in the brackets (12), the second steel bars (17) are provided with two connecting ends, and the two connecting ends of the second steel bars (17) are arranged in a left-right mode.
7. The foundation pit supporting device according to claim 6, wherein: the second embedded steel bar (18) is provided with two connection ends.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911251915.9A CN111021364A (en) | 2019-12-09 | 2019-12-09 | Foundation pit supporting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911251915.9A CN111021364A (en) | 2019-12-09 | 2019-12-09 | Foundation pit supporting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111021364A true CN111021364A (en) | 2020-04-17 |
Family
ID=70208820
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911251915.9A Pending CN111021364A (en) | 2019-12-09 | 2019-12-09 | Foundation pit supporting device |
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| Country | Link |
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| CN (1) | CN111021364A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN207092107U (en) * | 2017-07-06 | 2018-03-13 | 中铁第四勘察设计院集团有限公司 | A kind of anti-subsidence structure using diaphram wall |
| JP2018091107A (en) * | 2016-12-07 | 2018-06-14 | 鹿島建設株式会社 | Method for constructing underground structure |
| CN108487316A (en) * | 2018-05-16 | 2018-09-04 | 中铁第四勘察设计院集团有限公司 | It is a kind of to reduce underground structure grand heavy device and its construction method using building enclosure |
| CN211948447U (en) * | 2019-12-09 | 2020-11-17 | 广东省冶金建筑设计研究院有限公司 | Foundation pit supporting device |
-
2019
- 2019-12-09 CN CN201911251915.9A patent/CN111021364A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2018091107A (en) * | 2016-12-07 | 2018-06-14 | 鹿島建設株式会社 | Method for constructing underground structure |
| CN207092107U (en) * | 2017-07-06 | 2018-03-13 | 中铁第四勘察设计院集团有限公司 | A kind of anti-subsidence structure using diaphram wall |
| CN108487316A (en) * | 2018-05-16 | 2018-09-04 | 中铁第四勘察设计院集团有限公司 | It is a kind of to reduce underground structure grand heavy device and its construction method using building enclosure |
| CN211948447U (en) * | 2019-12-09 | 2020-11-17 | 广东省冶金建筑设计研究院有限公司 | Foundation pit supporting device |
Non-Patent Citations (1)
| Title |
|---|
| 孙大朋;: "型钢混凝土组合结构梁柱节点钢筋施工技术", 城市建设理论研究(电子版), vol. 2018, no. 04, 5 February 2018 (2018-02-05), pages 121 * |
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