CN104372790B - A kind of fiber-reinforced composite material rib concrete drain tile stake - Google Patents
A kind of fiber-reinforced composite material rib concrete drain tile stake Download PDFInfo
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- CN104372790B CN104372790B CN201410703402.8A CN201410703402A CN104372790B CN 104372790 B CN104372790 B CN 104372790B CN 201410703402 A CN201410703402 A CN 201410703402A CN 104372790 B CN104372790 B CN 104372790B
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- fiber
- pile body
- composite material
- reinforced composite
- material rib
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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
- E02D5/24—Prefabricated piles
- E02D5/30—Prefabricated piles made of concrete or reinforced concrete or made of steel and concrete
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
- E02D3/02—Improving by compacting
- E02D3/10—Improving by compacting by watering, draining, de-aerating or blasting, e.g. by installing sand or wick drains
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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
- E02D5/60—Piles with protecting cases
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2300/00—Materials
- E02D2300/0004—Synthetics
- E02D2300/0006—Plastics
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2300/00—Materials
- E02D2300/0051—Including fibers
- E02D2300/0068—Including fibers made from carbon
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- 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)
- Agronomy & Crop Science (AREA)
- Environmental & Geological Engineering (AREA)
- Soil Sciences (AREA)
- Piles And Underground Anchors (AREA)
Abstract
The invention discloses a kind of fiber-reinforced composite material rib concrete drain tile stake, including pile body, end plate, inner sleeve, fiber-reinforced composite material rib it is provided with in pile body, material rib is using carbon fiber as reinforcing material, matrix is made with unsaturated polyester, epoxy resin or phenolic resin, being cased with steel pipe outside material rib, pile body inwall is uniformly laid with concrete projection, is evenly arranged a number of osculum on tubular pile body.The present invention substitutes reinforcing bar with fiber-reinforced composite material rib, utilizes the advantages such as the high elastic modulus of carbon fibre bar, corrosion resistance to solve the problem that ordinary reinforced concrete stake tension is easily split greatly, extends the permeable pile tube life-span.Outside fiber bar, it is cased with steel pipe simultaneously, isolation fiber bar and concrete, thus avoid fiber bar-concrete interface intensity deficiency to cause xoncrete structure interface to be stripped destruction, pile body inwall creative be provided with concrete projection to pull out permeable pile tube when removing in the future, building foundation of reforming.
Description
Technical field
The present invention relates to a kind of fiber-reinforced composite material rib concrete drain tile stake.
Background technology
The permeable pile tube of conventional steel bar concrete has a wide range of applications in pile foundation engineering.But for the shallower area of coastal area, level of ground water, the application of the permeable pile tube of conventional steel bar concrete is faced with the difficulty of sternness.Particularly as follows:
Thickness of protection tier is difficult to hold, and it is also contemplated that the thickness of pile body preformed hole outside stake to be considered, if thickness low LCL, reinforcing bar is easy to be corroded.And if thickness is enough, reinforcing bar then cannot well distribute, and does not has enough spaces to place and not only meets protective layer thickness but also meet the reinforcing bar of distributed steel requirement.
The design life of the permeable pile tube of conventional steel bar concrete is shorter, can not meet the service life demand of nowadays society.
The reinforcing bar cracking resistance of the permeable pile tube of conventional steel bar concrete, ageing resistace are poor, and not only cost of manufacture is high, and owing to reinforcing bar is heavier, the manpower and materials cost of carrying is the most high.
Normal discharge pile tube osculum is made in advance, cannot well adapt to the change of the water yield in the region that change of moisture content is bigger, and easily enters soil, consequently, it is possible to cause the tube chamber of pile tube to be filled up so that drainage tubular pile lost efficacy by soil at the osculum of pile body.
Can draw from above-mentioned reason; conventional steel bar concrete does not adapts to, meets design now, uses requirement; the material that cracking resistance, ageing resistace are strong must be used to extend service life; the corrosion resistance of material must be the best simultaneously; insensitive to thickness of concrete cover; and cost can not the highest otherwise lose more than gain, osculum to have certain regulating power, convenient uses on the stratum of various water content.
Summary of the invention
Technical problem:The present invention provides a kind of service life length, corrosion resistance high, can effectively stop clamp-oning of soil, keep drainage tubular pile tube chamber hollow, stablize the fiber-reinforced composite material rib concrete drain tile stake of capacity of outlet water.
Technical scheme:The fiber-reinforced composite material rib concrete drain tile stake of the present invention, the end plate including pile body, being arranged on pile body upper end and the inner sleeve being arranged in pile body pipe, described pile body is vertically arranged with fiber-reinforced composite material rib, steel pipe all it is cased with outside every fiber-reinforced composite material rib, it is evenly arranged osculum on the tube wall of pile body, described inner sleeve has been provided with the draining array of orifices corresponding with osculum.
In the preferred version of drainage tubular pile of the present invention, described fiber-reinforced composite material rib is made up of reinforcing material and matrix material, and described reinforcing material is carbon fiber, and described matrix material is unsaturated polyester, epoxy resin or phenolic resin.
In the preferred version of drainage tubular pile of the present invention, described pile body pipe outer wall is axially disposed organizes osculum more, and often group osculum is circumferentially distributed along pile body.
In the preferred version of drainage tubular pile of the present invention, described inner sleeve being provided with the draining array of orifices of three kinds of different pore sizes, three kinds of described draining array of orifices are circumferentially distributed, and can not connection the most corresponding with osculum.
The present invention substitutes reinforcing bar with fiber-reinforced composite material rib, utilizes the advantages such as the high elastic modulus of carbon fibre bar, corrosion resistance to solve the problem that ordinary reinforced concrete stake tension is easily split greatly, extends the permeable pile tube life-span.Outside fiber bar, it is cased with steel pipe simultaneously, isolation fiber bar and concrete, thus avoid fiber bar-concrete interface intensity deficiency to cause xoncrete structure interface to be stripped destruction, pile body inwall creative be provided with concrete projection to pull out permeable pile tube when removing in the future, building foundation of reforming.
Beneficial effect:Compared with prior art, the invention have the advantages that
(1) existing reinforcing bar elastic modelling quantity is little, when reinforced concrete pile bears certain pulling force, may cause reinforcing bar that excessive elongation strain can occur thus cause the excessive deformation of xoncrete structure and fracture width, therefore the carbon fibre reinforced composite muscle by using elastic modelling quantity to be reinforcing bar 3 times to the maximum prevents concrete generation excessive deformation from causing cracking, thus the service life of pile tube is greatly improved；
(2) the reason corrosion to be attributed to that nowadays reinforcing bar loss is the biggest, especially coastal area groundwater corrosivity is high, the life-span of reinforcing bar significantly shortens, fiber-reinforced composite material rib composition is carbon fiber and resin, corrosion resistance is high, such that it is able to delay the appearance of the situation that steel bar corrosion causes pile tube to lose efficacy greatly；
(3) xoncrete structure interface may be caused to be stripped destruction due to fiber bar-concrete interface intensity deficiency, therefore steel pipe on overlapping between fiber bar and concrete, allows concrete be solely subjected to pressure, and fiber bar is solely subjected to pulling force, the division of labor clearly, the ability that respective performance is good at most；
(4) normal discharge pile tube osculum completes in advance now, hole cannot be changed, drainability is fixed, cannot regulate according to field condition, when the data of on-the-spot subsoil water content with design considerations has greater difference, normal discharge pile tube is the most improper, now it is accomplished by the drainage tubular pile of scalable water inlet speed to adapt to the change in place, the osculum of normal discharge tubular pile body easily enters soil simultaneously, consequently, it is possible to cause the tube chamber of pile tube to be filled up by soil, make draining pump cannot extract the water in tube chamber, so that drainage tubular pile lost efficacy.The series of problems such as the present invention has three kinds of apertures, can freely regulate water inlet speed, the soil body slip that effectively controlling intakes may cause the soonest, simultaneously because there is small-bore can effectively stop clamp-oning of soil, keep drainage tubular pile tube chamber hollow, stablize capacity of outlet water.
Accompanying drawing explanation
Fig. 1 is fiber-reinforced composite material rib concrete drain tile stake pile body side view of the present invention；
Fig. 2 is fiber-reinforced composite material rib concrete drain tile stake of the present invention and inner sleeve top view.
Fig. 3 is inner sleeve side view of the present invention.
In figure: hole, 4-fiber-reinforced composite material rib, 5-steel pipe, 6-osculum on 1-pile body, 2-end plate, 3-inner sleeve, 31-inner sleeve.
Detailed description of the invention
Below in conjunction with Figure of description and embodiment to the present invention technical scheme be described in further details.
Embodiment 1:
The fiber-reinforced composite material rib concrete drain tile stake of the present invention, including: concrete drain tile stake pile body 1, end plate 2, inner sleeve 3, fiber-reinforced composite material rib 4, steel pipe 5, osculum 6.Describe in detail: make the prefabricated reinforced concrete pile tube of diameter 450mm, wall thickness 90mm, the long 10m of stake, percent opening about 5%, use pre-tensioned prestressing centrifugal molding process, steam curing (concrete size can require regulation voluntarily according to designing institute).
Fiber-reinforced composite material rib reinforcing material is carbon fiber, and unsaturated polyester, epoxy resin or phenolic resin are matrix.Composite material bar uses durability fiber colligation, durability colloidal materials to cohere, durability bolt connects；
At pile body perforate, aperture 8cm, circumferentially distributed 4 along pile body, vertically it is distributed some groups (particular number can require regulation voluntarily according to designing institute)；
Before pile sinking, being filled with by the some reserving holes on pile tube sidewall with water-soluble material polyvinylalcohol solids, when hole female thread can prevent from driving piles, water-soluble material polyvinylalcohol solids extrusion is blocked pile body preformed hole by the soil body；
Produce near the pile body of pore water at subsoil water and soil compaction, the water-soluble material polyvinylalcohol solids filling pile tube sidewall preformed hole is corroded, a series of hole is defined on pile tube, subsoil water is made to flow into tube chamber by hole, thus reduce the excess pore water pressure caused by pile sinking, extruding force suffered by the soil body around hole is eased, play decompressing effect.
Inner sleeve 3 thickness being arranged in described pile body 1 is made by oneself, and length is isometric with pile body, and the center of circle of osculum is at same plane with on pile body in the center of circle of its circular hole, and inner sleeve 3 has the circular hole of three kinds of sizes, is evenly arranged in order on device.The hole size used in advance when inner sleeve exceedes the rotatable inner sleeve of actual demand to the osculum of the most a little bit smaller aligned pile body, reduces water inlet speed, prevents a large amount of soil to be extruded into inside pile body.
Due to water-permeable pipe staking, to touch the common pile tube of area ratio of water much bigger; especially coastal area, groundwater corrosivity is strong, and therefore regular reinforcement is easy to corrosion, destruction; thus cause pile tube to damage, corrosion protection pile tube can be resisted with corrosion resistance fiber-reinforced composite material rib thus extend the life-span.
Above-described embodiment is only the preferred embodiment of the present invention; it is noted that, for those skilled in the art; under the premise without departing from the principles of the invention; some improvement and equivalent can also be made; the claims in the present invention are improved and technical scheme after equivalent by these, each fall within protection scope of the present invention.
Claims (4)
1. a fiber-reinforced composite material rib concrete drain tile stake, it is characterized in that, this drainage tubular pile includes pile body (1), the end plate (2) being arranged on described pile body (1) upper end and the inner sleeve (3) being arranged in pile body (1) pipe, described pile body (1) is vertically arranged with fiber-reinforced composite material rib (4), steel pipe (5) the most all it is cased with at every fiber-reinforced composite material rib (4), it is evenly arranged osculum (6) on the tube wall of pile body (1), described inner sleeve (3) has been provided with the draining array of orifices corresponding with osculum (6).
Fiber-reinforced composite material rib concrete drain tile stake the most according to claim 1, it is characterized in that, described fiber-reinforced composite material rib (4) is made up of reinforcing material and matrix material, described reinforcing material is carbon fiber, and described matrix material is unsaturated polyester, epoxy resin or phenolic resin.
Fiber-reinforced composite material rib concrete drain tile stake the most according to claim 1 and 2, it is characterised in that described pile body (1) pipe outer wall is axially disposed organizes osculum (6) more, often organizes osculum (6) circumferentially distributed along pile body (1).
Fiber-reinforced composite material rib concrete drain tile stake the most according to claim 1 and 2, it is characterized in that, the draining array of orifices of three kinds of different pore sizes it is provided with on described inner sleeve (3), three kinds of described draining array of orifices are circumferentially distributed, and can not connection the most corresponding with osculum (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410703402.8A CN104372790B (en) | 2014-11-26 | 2014-11-26 | A kind of fiber-reinforced composite material rib concrete drain tile stake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410703402.8A CN104372790B (en) | 2014-11-26 | 2014-11-26 | A kind of fiber-reinforced composite material rib concrete drain tile stake |
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| Publication Number | Publication Date |
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| CN104372790A CN104372790A (en) | 2015-02-25 |
| CN104372790B true CN104372790B (en) | 2016-08-03 |
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| CN201410703402.8A Active CN104372790B (en) | 2014-11-26 | 2014-11-26 | A kind of fiber-reinforced composite material rib concrete drain tile stake |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107964942B (en) * | 2017-11-28 | 2019-07-16 | 淮海工学院 | A kind of FRP combined miniature stake and manufacturing method |
| CN111395380B (en) * | 2020-03-23 | 2021-01-29 | 重庆大学 | Pile foundation convenient for drainage |
| CN112064625A (en) * | 2020-09-02 | 2020-12-11 | 劳业鸿 | Super-strong prestressed water-resistant anti-collapse concrete pipe pile |
| CN113123320A (en) * | 2021-04-12 | 2021-07-16 | 宁波大学 | Method for manufacturing multifunctional prefabricated pile body integrating water permeability or water impermeability, electric conduction or electric conduction |
| CN113622441A (en) * | 2021-08-30 | 2021-11-09 | 长业建设集团有限公司 | Foundation pit dewatering and enclosure method for carbon fiber cloth reinforced concrete porous spiral pipe pile |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204311436U (en) * | 2014-11-26 | 2015-05-06 | 南京赛伯通建筑工程有限公司 | The stake of fiber-reinforced composite material rib concrete drain tile |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09228362A (en) * | 1996-02-23 | 1997-09-02 | Nippon Concrete Ind Co Ltd | Continuous wall by continuously driven hollow pile having pumping and draining device installed thereto |
| CN102261066B (en) * | 2011-05-13 | 2013-06-26 | 南京工业大学 | Preparation process of self-adaptive pressure-reducing drainage pipe pile |
| CN202913416U (en) * | 2012-11-07 | 2013-05-01 | 宁波大学 | Drainage slide-resistant pile |
| CN102953389B (en) * | 2012-11-07 | 2015-08-12 | 宁波大学 | A kind of slope supporting anchor draws antislide pile |
| CN103061332B (en) * | 2013-01-29 | 2015-01-14 | 新宇建设有限公司 | Integrally-arranged and externally-wrapped double-layered water discharging body and middle concrete combined pile and construction method |
| CN103437371B (en) * | 2013-08-29 | 2015-06-10 | 湖南城市学院 | Construction method of water drainage uplift pile |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN204311436U (en) * | 2014-11-26 | 2015-05-06 | 南京赛伯通建筑工程有限公司 | The stake of fiber-reinforced composite material rib concrete drain tile |
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| CN104372790A (en) | 2015-02-25 |
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Effective date of registration: 20170613 Address after: Songshan Station 334000 Jiangxi city of Shangrao province Xinzhou District No. two building 109 room Resettlement Area Management Committee Patentee after: HongSheng Construction Investment Group Co., Ltd. Address before: 210037 No. 199 Qingshi village, Jiangsu City, Nanjing province 1604 Patentee before: NANJING SAIBOTONG BUILDING ENGINEERING CO., LTD. |