CN108411903B - Concrete support pile comprising basalt fiber reinforced bars - Google Patents
Concrete support pile comprising basalt fiber reinforced bars Download PDFInfo
- Publication number
- CN108411903B CN108411903B CN201810351907.0A CN201810351907A CN108411903B CN 108411903 B CN108411903 B CN 108411903B CN 201810351907 A CN201810351907 A CN 201810351907A CN 108411903 B CN108411903 B CN 108411903B
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- China
- Prior art keywords
- concrete
- support pile
- basalt fiber
- concrete support
- pile
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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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- 229920002748 Basalt fiber Polymers 0.000 title claims abstract description 76
- 239000002689 soil Substances 0.000 claims abstract description 35
- 230000002787 reinforcement Effects 0.000 claims abstract description 17
- 229910000831 Steel Inorganic materials 0.000 claims description 9
- 239000010959 steel Substances 0.000 claims description 9
- 239000004568 cement Substances 0.000 claims description 5
- 230000003247 decreasing effect Effects 0.000 claims 1
- 230000003014 reinforcing effect Effects 0.000 claims 1
- 238000005336 cracking Methods 0.000 abstract description 5
- 239000000463 material Substances 0.000 abstract description 4
- 239000012752 auxiliary agent Substances 0.000 abstract description 2
- 239000002131 composite material Substances 0.000 abstract description 2
- 238000005260 corrosion Methods 0.000 abstract description 2
- 230000007797 corrosion Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 abstract description 2
- 230000008569 process Effects 0.000 abstract description 2
- 239000012779 reinforcing material Substances 0.000 abstract description 2
- 238000004381 surface treatment Methods 0.000 abstract description 2
- 229920003002 synthetic resin Polymers 0.000 abstract description 2
- 239000000057 synthetic resin Substances 0.000 abstract description 2
- 230000009286 beneficial effect Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B14/00—Use of inorganic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of inorganic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B14/38—Fibrous materials; Whiskers
- C04B14/46—Rock wool ; Ceramic or silicate fibres
- C04B14/4643—Silicates other than zircon
-
- 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
Abstract
The invention discloses a concrete support pile comprising basalt fiber reinforced bars, which is of a columnar structure, wherein the cross section of one side of the concrete support pile, which is close to a soil layer, in the vertical direction is not smaller than the cross section of any position, which is far away from the soil layer, in the vertical direction, the concrete support pile comprises basalt fiber reinforced bars, and basalt fiber reinforced bars are arranged at the positions, where the shape of the outer edge of the concrete support pile changes. The invention has the advantages that: the basalt fiber reinforcement is a composite material formed by taking basalt fibers as a reinforcing material, taking synthetic resin as a base material and adding an auxiliary agent through a pultrusion process and surface treatment, and has the advantages of corrosion resistance, high strength and light weight, and the reinforcement serving as a support pile greatly improves the crack resistance of the support pile. The arrangement of the shape of the concrete support pile increases the contact area between the concrete support pile and the soil layer on the basis of reducing materials, and the invention can enhance the cracking resistance of the concrete support pile by using basalt fiber reinforcement and the arrangement of positions.
Description
Technical Field
The invention relates to the field of buildings, in particular to a concrete support pile comprising basalt fiber reinforced bars.
Background
In order to ensure the safety of the building in the foundation pit or the safe construction, the concrete support pile is required to be arranged at the inner side wall of the foundation pit, and the structure of the concrete support pile is required to be stable due to the pressure of the inner side wall of the foundation pit, so that the concrete support pile is easy to crack under some special environments, and the safety of the construction is greatly reduced. The existing concrete support piles are round or square, the contact area between the round concrete support piles and the foundation pit is small, so that the foundation pit is easy to incline, and the square concrete support piles and the foundation pit have large foundation area, but waste resources. Therefore, a new concrete support pile is urgently needed to solve the above-mentioned problems.
Disclosure of Invention
In order to overcome the prior art, the invention provides a concrete support pile comprising basalt fiber reinforced bars.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
the concrete support pile comprises basalt fiber reinforced bars, wherein basalt fiber reinforced bars are arranged at the positions where the shape of the outer edge of the concrete support pile changes; the concrete support pile is of a columnar structure, and the cross section of the side close to the soil layer in the vertical direction is not smaller than the cross section of the side away from the soil layer in the vertical direction at any position.
The concrete support pile is characterized in that the concrete support pile is formed by basalt fiber concrete at the upper part and cement concrete at the lower part in the height direction.
The height range of the basalt fiber concrete is 0.8-1.2m.
The basalt fiber concrete comprises basalt fibers, wherein the weight of the basalt fibers accounts for 1% -3% of the total weight.
The outer edge of the concrete support pile is smooth.
The density of basalt fiber reinforced bars at the position of the concrete support pile close to the soil layer is greater than that of any position far away from the soil layer.
The vertical sectional area of the concrete support pile gradually decreases from the direction close to the soil layer to the direction far away from the soil layer.
The upper surface of the concrete support pile is the combination of a trapezoid part and an arc part, the upper bottom edge of the trapezoid part is replaced by the arc part tangent to the two sides of the trapezoid, and the lower bottom edge is close to the soil layer.
The upper surface of the concrete support pile is the combination of a rectangular part and an arc part, the side edge, which is far away from the soil layer and is parallel to the soil layer surface, of the rectangular part is used as the diameter of the arc part, and the arc part is semicircular.
The concrete support pile further comprises steel reinforcement bars, the basalt fiber reinforcement bars and the steel reinforcement bars are alternately arranged, and basalt fiber reinforcement bars are arranged at arc-shaped positions.
The invention has the advantages that:
(1) The basalt fiber reinforcement is a composite material formed by taking basalt fibers as a reinforcing material, taking synthetic resin as a base material and adding an auxiliary agent through a pultrusion process and surface treatment, and has the advantages of corrosion resistance, high strength and light weight, and the reinforcement serving as a support pile greatly improves the crack resistance of the support pile.
The arrangement of the shape of the concrete support pile increases the contact area between the concrete support pile and the soil layer on the basis of reducing materials, and the invention can enhance the cracking resistance of the concrete support pile by using basalt fiber reinforcement and the arrangement of positions.
(2) Because the upper pile head of the concrete support pile is connected with the upper crown beam to form a closed foundation pit support system, the upper pile head uses basalt fiber concrete to strengthen the pile head, which is beneficial to integral stress.
(3) The setting of the height range and the mixing ratio of the basalt fiber concrete is the optimal result under the condition of saving resources most after a plurality of tests.
(4) The outer edge of the concrete support pile is smooth, so that the concrete support pile is more convenient to manufacture, and stress concentration at corners is prevented.
(5) The arrangement of the reinforcement density in the concrete support pile can ensure the cracking resistance of the concrete support pile under the condition of saving resources.
(6) The basalt fiber reinforcement and the steel reinforcement are used alternately, so that the basalt fiber reinforcement can be saved, and the cost is saved.
Drawings
Fig. 1 is a plan view of a concrete pile including basalt fiber reinforced bars in embodiment 1 of the present invention.
Fig. 2 is a front view of a concrete pile including basalt fiber reinforced bars in embodiments 1 and 2 of the present invention.
Fig. 3 is a top view of a concrete pile including basalt fiber reinforced bars in embodiment 2 of the present invention.
The meaning of the reference symbols in the figures is as follows:
1-concrete support pile 11-trapezoid part 12-arc part 13-rectangle part
14-basalt fiber concrete 15-cement concrete
2-basalt fiber reinforced 3-steel reinforced bar
Detailed Description
Example 1
As shown in fig. 1-2, a concrete support pile comprising basalt fiber reinforced bars is characterized in that the concrete support pile 1 is of a columnar structure, the cross section of one side close to a soil layer in the vertical direction is not smaller than the cross section of any position far away from the soil layer in the vertical direction, the concrete support pile 1 comprises basalt fiber reinforced bars 2 and steel reinforced bars 3, and basalt fiber reinforced bars 2 are arranged at the positions where the shapes of the outer edges of the concrete support pile 1 change. The vertical sectional area of the concrete support pile 1 gradually decreases from the direction close to the soil layer to the direction far away from the soil layer. In this embodiment, the upper surface of the concrete support pile 1 is a combination of a trapezoid part 11 and an arc part 12, the upper bottom edge of the trapezoid part 11 is replaced by the arc part 12 tangent to two sides of the trapezoid, and the lower bottom edge is close to the soil layer. The outer edge of the concrete support pile 1 is smooth, and the included angle between the lower bottom edge and the two side edges of the trapezoid part 11 is an inscribed circle. The density of basalt fiber reinforced bars 2 at the position of the concrete support pile 1 close to the soil layer is greater than that of any position far away from the soil layer, the basalt fiber reinforced bars 2 and the steel reinforced bars 3 are alternately arranged, and basalt fiber reinforced bars 2 are arranged at arc-shaped positions, so that the cracking resistance of the concrete support pile 1 is ensured under the condition of saving resources.
The concrete support pile 1 is provided with basalt fiber concrete 14 at the upper part and cement concrete 15 at the lower part in the height direction. The basalt fiber concrete 14 in this example has a height of 0.8m. The basalt fiber concrete 14 includes basalt fibers, the weight of which is 1% of the entire weight. Because the upper pile head of the concrete support pile 1 is connected with the upper crown beam to form a closed foundation pit support system, the upper pile head uses basalt fiber concrete 14 to strengthen the pile head, which is beneficial to integral stress.
Example 2
As shown in fig. 2-3, a concrete support pile comprising basalt fiber reinforced bars is provided, the concrete support pile 1 is of a columnar structure, the cross section of the concrete support pile 1 in the vertical direction at one side close to a soil layer is not smaller than the cross section of the concrete support pile in the vertical direction at any position far away from the soil layer, the concrete support pile 1 comprises basalt fiber reinforced bars 2 and steel reinforced bars 3, and basalt fiber reinforced bars 2 are arranged at the positions where the shapes of the outer edges of the concrete support pile 1 change. In this embodiment, the upper surface of the concrete pile 1 is a combination of a rectangular portion 13 and an arc portion 12, and the side of the rectangular portion 13 away from the soil layer and parallel to the soil layer surface is taken as the diameter of the arc portion 12, and in this embodiment, the arc portion 12 is semicircular. The outer edge of the concrete support pile 1 is smooth. The density of basalt fiber reinforced bars 2 at the position of the concrete support pile 1 close to the soil layer is greater than that of any position far away from the soil layer, the basalt fiber reinforced bars 2 and the steel reinforced bars 3 are alternately arranged, and basalt fiber reinforced bars 2 are arranged at arc-shaped positions, so that the cracking resistance of the concrete support pile 1 is ensured under the condition of saving resources.
The concrete support pile 1 is provided with basalt fiber concrete 14 at the upper part and cement concrete 15 at the lower part in the height direction. The basalt fiber concrete 14 in this example has a height of 1.2m. The basalt fiber concrete 14 includes basalt fibers, the weight of which accounts for 2% of the entire weight. Because the upper pile head of the concrete support pile 1 is connected with the upper crown beam to form a closed foundation pit support system, the upper pile head uses basalt fiber concrete 14 to strengthen the pile head, which is beneficial to integral stress.
Example 3
Unlike the comparative document 1, the basalt fiber concrete 14 has a height of 1m, and the weight of basalt fibers in the basalt fiber concrete 14 accounts for 3% of the total weight of the basalt concrete.
Example 4
Unlike comparative document 2, the basalt fiber concrete 14 has a height of 1m, and the weight of basalt fibers in the basalt fiber concrete 14 accounts for 3% of the total weight of the basalt concrete.
The above embodiments are merely preferred embodiments of the present invention and are not intended to limit the present invention, and any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of the present invention.
Claims (8)
1. The concrete support pile is characterized in that the concrete support pile (1) comprises basalt fiber reinforced bars, and basalt fiber reinforced bars (2) are arranged at the positions where the shape of the outer edge of the concrete support pile (1) changes; the concrete support pile (1) is of a columnar structure, and the cross section of one side close to the soil layer in the vertical direction is not smaller than the cross section of any position far away from the soil layer in the vertical direction;
basalt fiber reinforced bars (2) and steel reinforced bars (3) in the concrete support pile (1) are alternately arranged along the circumferential direction of the concrete support pile (1); the density of basalt fiber reinforcing bars (2) at the position of the concrete support pile (1) close to the soil layer is greater than that of any position far away from the soil layer.
2. A concrete pile comprising basalt fiber reinforcement according to claim 1, characterized in that the pile (1) is of basalt fiber concrete (14) in the upper part and cement concrete (15) in the lower part in the height direction.
3. A concrete support pile comprising basalt fibre reinforcement according to claim 2, characterized in that the basalt fibre concrete (14) has a height in the range of 0.8-1.2m.
4. A concrete support pile comprising basalt fibre reinforcement according to claim 2, characterized in that the basalt fibre concrete (14) comprises basalt fibres, the weight of which basalt fibres is 1-3% of the total weight.
5. A concrete pile comprising basalt fiber reinforced bars according to claim 1, characterized in that the outer edge of the concrete pile (1) is smooth.
6. A concrete pile comprising basalt fiber reinforced bars according to claim 1, wherein the concrete pile (1) has a vertical cross-sectional area gradually decreasing from a direction closer to the soil layer to a direction farther from the soil layer.
7. A concrete support pile comprising basalt fiber reinforced bars according to claim 6, wherein the upper surface of the concrete support pile (1) is a combination of a trapezoid part (11) and an arc part (12), the upper bottom edge of the trapezoid part is replaced by the arc part (12) tangential to two sides of the trapezoid, and the lower bottom edge is close to a soil layer.
8. A concrete pile comprising basalt fiber reinforced bars according to claim 1, wherein the upper surface of the concrete pile (1) is a combination of a rectangular part (13) and an arc part (12), the side edge of the rectangular part (13) which is far away from the soil layer and is parallel to the soil layer surface is used as the diameter of the arc part (12), and the arc part (12) is semicircular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810351907.0A CN108411903B (en) | 2018-04-19 | 2018-04-19 | Concrete support pile comprising basalt fiber reinforced bars |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810351907.0A CN108411903B (en) | 2018-04-19 | 2018-04-19 | Concrete support pile comprising basalt fiber reinforced bars |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108411903A CN108411903A (en) | 2018-08-17 |
| CN108411903B true CN108411903B (en) | 2024-04-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810351907.0A Active CN108411903B (en) | 2018-04-19 | 2018-04-19 | Concrete support pile comprising basalt fiber reinforced bars |
Country Status (1)
| Country | Link |
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| CN (1) | CN108411903B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110130359A (en) * | 2019-05-10 | 2019-08-16 | 中国建筑西南勘察设计研究院有限公司 | A kind of BFRP tendons material hybrid reinforcement support pile and its construction method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2298285Y (en) * | 1997-03-26 | 1998-11-25 | 福建建专基础工程公司 | Deformed sectional bored concrete pile |
| CN2455778Y (en) * | 2000-12-27 | 2001-10-24 | 于陵 | Construction base piles with anti-cracking fiber |
| CN203129133U (en) * | 2013-01-08 | 2013-08-14 | 孔超 | Centrifugal poured prestressed steel bar concrete H-shaped section support pile |
| CN104612133A (en) * | 2015-01-15 | 2015-05-13 | 安徽省建筑科学研究设计院 | Concrete precast pile with mixed reinforcement of glass fiber-reinforced polymers and steel bars |
| JP2016017275A (en) * | 2014-07-04 | 2016-02-01 | 備前工業株式会社 | Construction device for coping concrete block, and construction method for the same |
| CN205259173U (en) * | 2015-12-28 | 2016-05-25 | 天津市佰世恒建筑工程有限公司 | Be applied to novel resistance to compression foundation pile of excavation supporting engineering |
| CN107130589A (en) * | 2017-06-07 | 2017-09-05 | 安徽省建筑科学研究设计院 | A kind of asymmetric compound armored concrete poured support stake |
| CN206477342U (en) * | 2016-12-08 | 2017-09-08 | 中铁十五局集团第五工程有限公司 | A kind of arrangement of soil blocking pile |
| CN206693244U (en) * | 2017-04-07 | 2017-12-01 | 中国建筑西南勘察设计研究院有限公司 | A kind of basalt composite reinforcing material foundation pit supporting pile |
| CN208777301U (en) * | 2018-04-19 | 2019-04-23 | 安徽省建筑科学研究设计院 | A kind of concrete support pile including basalt fibre arrangement of reinforcement |
-
2018
- 2018-04-19 CN CN201810351907.0A patent/CN108411903B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2298285Y (en) * | 1997-03-26 | 1998-11-25 | 福建建专基础工程公司 | Deformed sectional bored concrete pile |
| CN2455778Y (en) * | 2000-12-27 | 2001-10-24 | 于陵 | Construction base piles with anti-cracking fiber |
| CN203129133U (en) * | 2013-01-08 | 2013-08-14 | 孔超 | Centrifugal poured prestressed steel bar concrete H-shaped section support pile |
| JP2016017275A (en) * | 2014-07-04 | 2016-02-01 | 備前工業株式会社 | Construction device for coping concrete block, and construction method for the same |
| CN104612133A (en) * | 2015-01-15 | 2015-05-13 | 安徽省建筑科学研究设计院 | Concrete precast pile with mixed reinforcement of glass fiber-reinforced polymers and steel bars |
| CN205259173U (en) * | 2015-12-28 | 2016-05-25 | 天津市佰世恒建筑工程有限公司 | Be applied to novel resistance to compression foundation pile of excavation supporting engineering |
| CN206477342U (en) * | 2016-12-08 | 2017-09-08 | 中铁十五局集团第五工程有限公司 | A kind of arrangement of soil blocking pile |
| CN206693244U (en) * | 2017-04-07 | 2017-12-01 | 中国建筑西南勘察设计研究院有限公司 | A kind of basalt composite reinforcing material foundation pit supporting pile |
| CN107130589A (en) * | 2017-06-07 | 2017-09-05 | 安徽省建筑科学研究设计院 | A kind of asymmetric compound armored concrete poured support stake |
| CN208777301U (en) * | 2018-04-19 | 2019-04-23 | 安徽省建筑科学研究设计院 | A kind of concrete support pile including basalt fibre arrangement of reinforcement |
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| Publication number | Publication date |
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| CN108411903A (en) | 2018-08-17 |
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