CN112359844A - Foundation pit supporting structure and construction method thereof - Google Patents
Foundation pit supporting structure and construction method thereof Download PDFInfo
- Publication number
- CN112359844A CN112359844A CN202011321300.1A CN202011321300A CN112359844A CN 112359844 A CN112359844 A CN 112359844A CN 202011321300 A CN202011321300 A CN 202011321300A CN 112359844 A CN112359844 A CN 112359844A
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- Prior art keywords
- reinforced concrete
- cast
- support
- concrete support
- foundation pit
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- 238000010276 construction Methods 0.000 title claims abstract description 16
- 239000011150 reinforced concrete Substances 0.000 claims abstract description 55
- 238000003860 storage Methods 0.000 claims abstract description 4
- 239000004567 concrete Substances 0.000 claims description 14
- 238000011065 in-situ storage Methods 0.000 claims 3
- 239000002689 soil Substances 0.000 abstract description 9
- 239000000243 solution Substances 0.000 description 3
- 238000005553 drilling Methods 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000005303 weighing Methods 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
- 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
- E02D19/00—Keeping dry foundation sites or other areas in the ground
- E02D19/06—Restraining of underground water
- E02D19/08—Restraining of underground water by employing open ditches arranged below the level of the water
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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
- E02D5/74—Means for anchoring structural elements or bulkheads
- E02D5/76—Anchorings for bulkheads or sections thereof in as much as specially adapted therefor
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H17/00—Fencing, e.g. fences, enclosures, corrals
- E04H17/14—Fences constructed of rigid elements, e.g. with additional wire fillings or with posts
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- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- Civil Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Paleontology (AREA)
- General Engineering & Computer Science (AREA)
- Architecture (AREA)
- Environmental & Geological Engineering (AREA)
- Hydrology & Water Resources (AREA)
- Foundations (AREA)
Abstract
A foundation pit supporting structure and a construction method thereof comprise a B-type cast-in-place pile, a first reinforced concrete support, a second reinforced concrete support, a bottom plate, a drilled cast-in-place pile and a lattice column, wherein the B-type cast-in-place pile is vertically arranged in a foundation pit, the first reinforced concrete support and the second reinforced concrete support are horizontally arranged and are sequentially connected with the B-type cast-in-place pile from top to bottom, the drilled cast-in-place pile is vertically arranged, the top end of the drilled cast-in-place pile is connected with the bottom plate, the lattice column is fixedly arranged on the drilled cast-in-place pile, and an inclined support is arranged between the bottom plate and the first reinforced concrete support. The foundation pit supporting structure is provided with the inclined cast support, so that the strength and the stability of the whole supporting structure can be effectively improved, and the phenomenon of soil collapse is avoided; the lattice column can play a role in supporting the first reinforced concrete support and the second reinforced concrete support, so that the foundation pit is more stable; the inclined throwing support is fixedly connected with the bottom plate and the tank wall of the storage tank through the reinforced concrete corbels respectively, so that the foundation pit is more stable.
Description
Technical Field
The invention belongs to the technical field of foundation pits, and particularly relates to a foundation pit supporting structure and a construction method thereof.
Background
The foundation pit is a soil pit excavated at the design position of the foundation according to the elevation of the foundation and the plane size of the foundation. The foundation pit can be excavated in a slope excavation mode for the foundation pit with lower depth, but a foundation pit supporting structure must be adopted for the foundation pit with deeper depth to prevent soil on the side wall of the foundation pit from collapsing and ensure the safety of constructors in the whole construction process of the foundation pit. Among the prior art, through at inside concreting supporting construction of foundation ditch in order to guarantee that the foundation ditch can not appear the phenomenon of collapsing, however, current supporting construction of foundation ditch is firm inadequately, can produce the phenomenon of collapsing under the condition that bad weather appears.
Disclosure of Invention
The invention aims to provide a foundation pit supporting structure, which solves the problems in the prior art.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows: the utility model provides a foundation pit supporting structure, includes B type bored concrete pile, first reinforced concrete support, second reinforced concrete support, bottom plate, bored concrete pile and lattice column, B type bored concrete pile locates in the foundation ditch vertically, first reinforced concrete support and second reinforced concrete support level set up, and from the top down are connected with B type bored concrete pile in proper order, first reinforced concrete support is connected with B type bored concrete pile, the vertical setting of bored concrete pile, the top and the bottom plate of bored concrete pile are connected, the fixed lattice column that is equipped with on the bored concrete pile, the lattice column is connected with bottom plate, second reinforced concrete support and first reinforced concrete support in proper order, be equipped with the inclined throw between bottom plate and the first reinforced concrete support and prop.
On the basis of the scheme and as a preferable scheme of the scheme, two ends of the inclined throwing support are respectively and fixedly connected with the bottom plate and the tank wall of the storage tank through reinforced concrete corbels.
On the basis of the scheme and as a preferable scheme of the scheme, an included angle between the inclined throwing support and the horizontal plane is 45-55 degrees.
On the basis of the above scheme and as a preferable scheme of the above scheme, the B-type cast-in-place pile is provided with a jet retaining wall.
On the basis of above-mentioned scheme and as the preferred scheme of above-mentioned scheme, the foundation ditch surface is equipped with the escape canal, the escape canal is located one side of B type bored concrete pile, be equipped with between escape canal and the B type bored concrete pile and prevent guardrail bar.
Another object of the present invention is to provide a method for constructing a supporting structure of a foundation pit, which comprises the steps of:
s1: leveling the field;
s2: pouring a B-type cast-in-place pile, a drilling cast-in-place pile and a lattice column;
s3: pouring a first reinforced concrete support;
s4: pouring a second reinforced concrete support;
s5: pouring a bottom plate;
s6: removing the second reinforced concrete support;
s7: installing an inclined throwing support;
s8: and removing the first reinforced concrete support.
The invention has the following beneficial effects: the foundation pit supporting structure is provided with the inclined cast support, so that the strength and the stability of the whole supporting structure can be effectively improved, and the phenomenon of soil collapse is avoided; the lattice column can play a role in supporting the first reinforced concrete support and the second reinforced concrete support, so that the foundation pit is more stable; the inclined throwing support is respectively and fixedly connected with the bottom plate and the tank wall of the storage tank through a reinforced concrete bracket, so that the foundation pit is more stable; the injection retaining wall is arranged on the type B cast-in-place pile, so that the inter-pile soil of the type B cast-in-place pile can be effectively protected, and the stability of the foundation pit is improved; the drainage ditch is arranged on the outer side of the foundation pit supporting structure, rainwater can be timely drained, water accumulation in the foundation pit is prevented, and the protective railing is arranged between the drainage ditch and the foundation pit supporting structure, so that personnel can be effectively prevented from falling into the foundation pit; the foundation pit supporting structure built by the construction method is high in strength and good in stability, and the phenomenon of soil collapse cannot occur.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic sectional structure of the present invention.
The reference numbers are as follows:
1. filling piles of type B; 2. a first reinforced concrete support; 3. a second reinforced concrete support; 4. a base plate; 5. drilling a cast-in-place pile; 6. a lattice column; 7. inclined polishing support; 8. a reinforced concrete corbel; 9. a drainage ditch; 10. a guard rail; 11. spraying a protecting wall; 12. and (4) regulating and storing the pool.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
As shown in the attached drawing 1, a foundation pit supporting structure comprises a type B cast-in-place pile 1, a first reinforced concrete support 2, a second reinforced concrete support 3, a bottom plate 4, a bored pile 5 and a lattice column 6, wherein the type B cast-in-place pile 1 is vertically arranged in a foundation pit, the first reinforced concrete support 2 and the second reinforced concrete support 3 are horizontally arranged and are sequentially connected with the type B cast-in-place pile 1 from top to bottom, the first reinforced concrete support 2 is connected with the type B cast-in-place pile 1, the bored pile 5 is vertically arranged, the top end of the bored pile 5 is connected with the bottom plate 4, the lattice column 6 is fixedly arranged on the bored pile 5, the lattice column 6 is sequentially connected with the bottom plate 4, the second reinforced concrete support 3 and the first reinforced concrete support 2, and an inclined support throw 7 is arranged between the bottom plate 4 and the first reinforced concrete support 2.
The foundation pit supporting structure is provided with the inclined cast support, so that the strength and the stability of the whole supporting structure can be effectively improved, and the phenomenon of soil collapse is avoided; the lattice column can play a role in supporting the first reinforced concrete support and the second reinforced concrete support, so that the foundation pit is more stable.
The both ends of bracing 7 are passed through reinforced concrete corbel 8 and are connected with the pool wall fixed connection of bottom plate 4 and regulation pond 12 respectively to make the foundation ditch more firm.
The inclined throwing support 7 and the horizontal plane form an included angle of 45 degrees to 55 degrees, if the included angle is smaller than 45 degrees, the acting force of the inclined throwing support is small, and if the included angle is larger than 55 degrees, the angle is too large, so that the inclined throwing support cannot reach the tail end of the bottom plate.
The injection retaining wall 11 is arranged on the B-type cast-in-place pile 1, so that inter-pile soil of the B-type cast-in-place pile can be effectively protected, and the stability of a foundation pit is improved.
The foundation ditch surface is equipped with escape canal 9, escape canal 9 is located one side of B type bored concrete pile 1, be equipped with between 9 and the B type bored concrete pile 1 in escape canal and prevent guardrail bar 10. Be equipped with the escape canal in underground structure's the outside, can in time discharge the rainwater, prevent the inside ponding of foundation ditch, be equipped with between escape canal and the underground structure and prevent guardrail bar moreover, can prevent effectively that the personnel from weighing down in the foundation ditch.
A construction method of a foundation pit supporting structure comprises the following steps:
s1: leveling the field;
s2: pouring a B-type cast-in-place pile 1, a bored cast-in-place pile 5 and a lattice column 6;
s3: pouring a first reinforced concrete support 2;
s4: pouring a second reinforced concrete support 3;
s5: pouring a bottom plate 4;
s6: dismantling the second reinforced concrete support 3;
s7: installing an inclined throwing support 7;
s8: and (3) removing the first reinforced concrete support 2.
The foundation pit supporting structure built by the construction method is high in strength and good in stability, and the phenomenon of soil collapse cannot occur.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (6)
1. The utility model provides a foundation ditch supporting construction which characterized in that: comprises a B-type cast-in-place pile (1), a first reinforced concrete support (2), a second reinforced concrete support (3), a bottom plate (4), a cast-in-place bored pile (5) and a lattice column (6), the B-type cast-in-place pile (1) is vertically arranged in a foundation pit, the first reinforced concrete support (2) and the second reinforced concrete support (3) are horizontally arranged, and is connected with a B-type cast-in-place pile (1) from top to bottom in sequence, the first reinforced concrete support (2) is connected with the B-type cast-in-place pile (1), the cast-in-situ bored pile (5) is vertically arranged, the top end of the cast-in-situ bored pile (5) is connected with the bottom plate (4), the cast-in-situ bored pile (5) is fixedly provided with a lattice column (6), the lattice column (6) is sequentially connected with the bottom plate (4), the second reinforced concrete support (3) and the first reinforced concrete support (2), an inclined throwing support (7) is arranged between the bottom plate (4) and the first reinforced concrete support (2).
2. A foundation pit supporting construction according to claim 1, wherein: and two ends of the inclined throwing support (7) are respectively fixedly connected with the bottom plate (4) and the tank wall of the storage tank (12) through reinforced concrete corbels (8).
3. A foundation pit supporting construction according to claim 1, wherein: and the inclined throwing support (7) and the horizontal plane form an included angle of 45-55 degrees.
4. A foundation pit supporting construction according to claim 1, wherein: and the B-type cast-in-place pile (1) is provided with a jet retaining wall (11).
5. A foundation pit supporting construction according to claim 1, wherein: the foundation ditch surface is equipped with escape canal (9), escape canal (9) are located one side of B type bored concrete pile (1), be equipped with between escape canal (9) and B type bored concrete pile (1) and prevent guardrail bar (10).
6. A construction method for constructing the supporting structure of the foundation pit according to claim 1, comprising the steps of:
s1: leveling the field;
s2: pouring a B-type cast-in-place pile (1), a bored cast-in-place pile (5) and a lattice column (6);
s3: pouring a first reinforced concrete support (2);
s4: pouring a second reinforced concrete support (3);
s5: pouring a bottom plate (4);
s6: dismantling the second reinforced concrete support (3);
s7: installing an inclined throwing support (7);
s8: and (3) removing the first reinforced concrete support (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011321300.1A CN112359844A (en) | 2020-11-23 | 2020-11-23 | Foundation pit supporting structure and construction method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011321300.1A CN112359844A (en) | 2020-11-23 | 2020-11-23 | Foundation pit supporting structure and construction method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112359844A true CN112359844A (en) | 2021-02-12 |
Family
ID=74533533
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011321300.1A Pending CN112359844A (en) | 2020-11-23 | 2020-11-23 | Foundation pit supporting structure and construction method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112359844A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114134902A (en) * | 2021-12-10 | 2022-03-04 | 中电建路桥集团有限公司 | Reinforced concrete supporting structure for soft soil deep foundation pit and construction process of reinforced concrete supporting structure |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007205161A (en) * | 2005-07-19 | 2007-08-16 | Kanuka Design:Kk | Retaining wall and its construction method |
| CN105089061A (en) * | 2015-08-11 | 2015-11-25 | 泰兴市第一建筑安装工程有限公司 | Ultra-deep foundation pit supporting method |
| CN106836241A (en) * | 2017-03-30 | 2017-06-13 | 天津天建设集团有限公司 | A kind of support replacement construction of pattern foundation pit supporting structure horizontal support structure |
| CN107740420A (en) * | 2017-09-15 | 2018-02-27 | 浙江申诚环境工程有限公司 | Foundation ditch tears support and support replacement system and method open |
| CN214245738U (en) * | 2020-11-23 | 2021-09-21 | 中国电建集团江西省电力建设有限公司 | Foundation pit supporting structure |
-
2020
- 2020-11-23 CN CN202011321300.1A patent/CN112359844A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007205161A (en) * | 2005-07-19 | 2007-08-16 | Kanuka Design:Kk | Retaining wall and its construction method |
| CN105089061A (en) * | 2015-08-11 | 2015-11-25 | 泰兴市第一建筑安装工程有限公司 | Ultra-deep foundation pit supporting method |
| CN106836241A (en) * | 2017-03-30 | 2017-06-13 | 天津天建设集团有限公司 | A kind of support replacement construction of pattern foundation pit supporting structure horizontal support structure |
| CN107740420A (en) * | 2017-09-15 | 2018-02-27 | 浙江申诚环境工程有限公司 | Foundation ditch tears support and support replacement system and method open |
| CN214245738U (en) * | 2020-11-23 | 2021-09-21 | 中国电建集团江西省电力建设有限公司 | Foundation pit supporting structure |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114134902A (en) * | 2021-12-10 | 2022-03-04 | 中电建路桥集团有限公司 | Reinforced concrete supporting structure for soft soil deep foundation pit and construction process of reinforced concrete supporting structure |
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