CN107130598A - A kind of glass fibre rib concrete pile containing optical fiber - Google Patents
A kind of glass fibre rib concrete pile containing optical fiber Download PDFInfo
- Publication number
- CN107130598A CN107130598A CN201710422081.8A CN201710422081A CN107130598A CN 107130598 A CN107130598 A CN 107130598A CN 201710422081 A CN201710422081 A CN 201710422081A CN 107130598 A CN107130598 A CN 107130598A
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- China
- Prior art keywords
- optical fiber
- pile body
- reinforced polymer
- pile
- glass fiber
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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
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/22—Piles
- E02D5/58—Prestressed concrete piles
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D33/00—Testing foundations or foundation structures
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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)
- Piles And Underground Anchors (AREA)
Abstract
The present invention relates to a kind of glass fibre rib concrete pile containing optical fiber.The present invention constitutes the glass fiber-reinforced polymer of pile body lengthways main steel bar including pile body and in pile body, glass fiber-reinforced polymer is built-in with the optical fiber and multiple along the spaced apart strain transducer of glass fiber-reinforced polymer length direction and/or sonic sensor arranged along glass fiber-reinforced polymer length direction, and strain transducer, the detection signal of sonic sensor are through optical fiber output.The present invention can also be detected whether whether complete or stress changes in real time even at hidden state after being used as building foundation.The strain data of pile body is transferred to signal acquisition module by strain transducer by optical fiber, so as to recognize whether the concrete-pile stress changes.The velocity of wave for the sound wave propagated in pile body is transferred to signal acquisition module by sonic sensor by optical fiber, so as to recognize wave speed distribution of the sound wave in pile body, it can determine whether whether pile body is complete by velocity of wave change, and the length of pile body can also be known according to wave speed distribution.
Description
Technical field
The invention belongs to building foundation field, a kind of glass fibre rib concrete pile containing optical fiber is specifically related to.
Background technology
Concrete-pile is the basic of building, including prefabricated pile and present walling pile, the concrete pile integrity are directly affected
The quality of architectural engineering.General concrete stake is after construction, especially with permanent and concealed concrete-pile, inspection
Survey side is difficult to directly know whether the structure of pile body is complete, and whether pile body stress meets design requirement etc..
The content of the invention
In order to solve the above-mentioned technical problem, the present invention provides a kind of glass fibre rib concrete pile containing optical fiber.
In order to realize the purpose of the present invention, present invention employs following technical scheme：
A kind of glass fibre rib concrete pile containing optical fiber, including pile body and the composition pile body longitudinal direction in the pile body
The glass fiber-reinforced polymer of cage bar, the glass fiber-reinforced polymer is built-in with the optical fiber arranged along glass fiber-reinforced polymer length direction and multiple edges
The spaced apart strain transducer of glass fiber-reinforced polymer length direction and/or sonic sensor, the strain transducer, sound wave sensing
The detection signal of device is through the optical fiber output.
Further, the glass fiber-reinforced polymer colligation is on the steel reinforcement cage in pile body, and the optic fibre end extends to the stake
Body is connected outside end with signal acquisition module.
Further, conserved and obtained by normal temperature after the concrete-pile is poured.
Further, the optical fiber and sensor are integrally formed with the glass fiber-reinforced polymer.
It is preferred that, when the pile body diameter is less than 400mm, the glass fiber-reinforced polymer sets 3.
It is preferred that, when the pile body diameter is 400~600mm, the glass fiber-reinforced polymer sets 4.
It is preferred that, when the pile body diameter is 600~1000mm, the glass fiber-reinforced polymer sets 6.
The beneficial effects of the present invention are：
(1) present invention can also be by detecting in real time even at hidden state after being used as building foundation
Whether no complete or stress changes.
The detection mode of the pile body stressing conditions is：The optical fiber is connected with signal acquisition module, the strain sensing
The strain data of pile body is transferred to signal acquisition module by device by optical fiber, and described information acquisition module is connected with monitoring system,
It can be visually known whether the concrete-pile stress changes by observing monitoring system.Due to glass fiber-reinforced polymer and stake
Body concrete and deformed bar are structure as a whole, so the strain of glass fiber-reinforced polymer is detected by the strain transducer,
And then representative measures the strain of pile concrete and the strain of pile body deformed bar.
The whether complete detection mode of the pile body is：The optical fiber is connected with signal acquisition module, is released in pile body end
Put the sound wave of certain frequency, the sound wave is along pile body longitudinal direction and is laterally propagated, the sonic sensor is by the sound wave
Spread speed data in pile body are transferred to signal acquisition module by optical fiber, and described information acquisition module connects with monitoring system
Connect, can be visually observed that wave speed distribution of the sound wave in pile body by observing monitoring system, pass through velocity of wave data
Change can determine whether whether pile body is complete, and can also know according to wave speed distribution the length of pile body.Cleaning Principle：Due to sound
Spread speed of the ripple in different medium is differed, when pile body breaking or defective, then velocity of wave accordingly can in breaking part or
Fault location changes.
The invention enables the detection more convenient and quicker of pile body integrity and degree of accuracy height, efficiently solve pile body length and be difficult to
The engineering problem accurately judged.The other present invention is easy to the anti-bending bearing capacity and integrality of monitoring pile body in real time, in real time prison
The stability on whole engineering foundation basis is controlled, a kind of construction-monitoring real-time system is formd, is easy to government department to supervise engineering matter
Amount, in particular for permanent, disguised engineering.
Glass fiber-reinforced polymer with optical fiber both can be used for carrying as lengthways main steel bar, while can be set as detection again
Standby, relative to prebored hole fiber laser arrays, cost is low, and detection is more convenient, it is possible to achieve all concrete-piles 100% are monitored, and are easy to
Quality control management.
(2) preparation method of the invention：The optical fiber and sensor are integrally machined shaping with the glass fiber-reinforced polymer；
Glass fiber-reinforced polymer containing optical fiber and sensor is used for colligation deformed bar cage；Poured on the deformed bar cage
Pile body, normal temperature maintenance.Because glass fiber-reinforced polymer is built-in with sensor, so pile body of the present invention is after pouring, selection normal temperature maintenance,
Long-time high temperature is avoided to damage the sensor construction.
Brief description of the drawings
Fig. 1 is schematic structural view of the invention.
Fig. 2,3,4 are respectively the concrete pile structure schematic diagram of different-diameter.
The implication marked in accompanying drawing is as follows：
1- pile body 2- glass fiber-reinforced polymer 3- optical fiber 4- strain transducers
5- sonic sensor 6- reinforcing bars
Embodiment
More specific detail is made to technical solution of the present invention with reference to embodiment：
As shown in figure 1, a kind of glass fibre rib concrete pile containing optical fiber, including pile body 1 and in the pile body 1
The glass fiber-reinforced polymer 2 of the lengthways main steel bar of pile body 1 is constituted, the glass fiber-reinforced polymer 2 is built-in with along the length direction of glass fiber-reinforced polymer 2 and arranged
Optical fiber 3 and multiple along the spaced apart strain transducer 4 of the length direction of glass fiber-reinforced polymer 2 and/or sonic sensor 5, institute
State strain transducer 4, the detection signal of sonic sensor 5 is exported through the optical fiber 3.
The colligation of glass fiber-reinforced polymer 2 is on the steel reinforcement cage in pile body 1, and the termination of optical fiber 3 extends to the end of pile body 1
It is connected outside portion with signal acquisition module.
The optical fiber 3 and sensor are integrally formed with the glass fiber-reinforced polymer.
The concrete-pile is conserved by normal temperature after pouring and obtained.
In order to improve the accuracy and verification property of assay, the present invention is according to the difference of concrete-pile size, glass
The quantity of fiber bar relative set can also have been adjusted：
As shown in Fig. 2 when the diameter of pile body 1 is less than 400mm, the glass fiber-reinforced polymer 2 sets 3.
As shown in figure 3, during 1 a diameter of 400~600mm of pile body, the glass fiber-reinforced polymer 2 sets 4.
As shown in figure 4, during 1 a diameter of 600~1000mm of pile body, the glass fiber-reinforced polymer 2 sets 6.
Claims (7)
1. a kind of glass fibre rib concrete pile containing optical fiber, it is characterised in that：Including pile body (1) and positioned at the pile body
(1) glass fiber-reinforced polymer (2) of pile body (1) lengthways main steel bar is constituted in, the glass fiber-reinforced polymer (2) is built-in with along glass fiber-reinforced polymer
(2) optical fiber (3) and multiple along the spaced apart strain transducer of glass fiber-reinforced polymer (2) length direction of length direction arrangement
(4) and/or sonic sensor (5), the strain transducer (4), the detection signal of sonic sensor (5) are through the optical fiber (3)
Output.
2. the glass fibre rib concrete pile as claimed in claim 1 containing optical fiber, it is characterised in that：The glass fiber-reinforced polymer
(2) colligation is adopted outside the pile body (1) end with signal on the steel reinforcement cage in pile body (1), optical fiber (3) termination is extended to
Collect module connection.
3. the glass fibre rib concrete pile as claimed in claim 1 containing optical fiber, it is characterised in that：The concrete-pile is poured
Conserved and obtained by normal temperature afterwards.
4. the glass fibre rib concrete pile as claimed in claim 1 containing optical fiber, it is characterised in that：The optical fiber (3) and
Sensor is integrally formed with the glass fiber-reinforced polymer.
5. the glass fibre rib concrete pile as claimed in claim 1 containing optical fiber, it is characterised in that：Pile body (1) diameter
During less than 400mm, the glass fiber-reinforced polymer (2) sets 3.
6. the glass fibre rib concrete pile as claimed in claim 1 containing optical fiber, it is characterised in that：Pile body (1) diameter
During for 400~600mm, the glass fiber-reinforced polymer (2) sets 4.
7. the glass fibre rib concrete pile as claimed in claim 1 containing optical fiber, it is characterised in that：Pile body (1) diameter
During for 600~1000mm, the glass fiber-reinforced polymer (2) sets 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710422081.8A CN107130598A (en) | 2017-06-07 | 2017-06-07 | A kind of glass fibre rib concrete pile containing optical fiber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710422081.8A CN107130598A (en) | 2017-06-07 | 2017-06-07 | A kind of glass fibre rib concrete pile containing optical fiber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107130598A true CN107130598A (en) | 2017-09-05 |
Family
ID=59734486
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710422081.8A Pending CN107130598A (en) | 2017-06-07 | 2017-06-07 | A kind of glass fibre rib concrete pile containing optical fiber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107130598A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107587503A (en) * | 2017-10-09 | 2018-01-16 | 浙江科技学院 | The stake and auxiliary pile sinking method that static pressure sinks are aided in liquefiable sandy soil |
| CN107745441A (en) * | 2017-11-14 | 2018-03-02 | 青岛理工大学 | Fiber grating sensing system is embedded in a kind of PHC pile tubes forming process and test device |
| CN109778840A (en) * | 2019-01-25 | 2019-05-21 | 南京钜力智能制造技术研究院有限公司 | A kind of concrete precast pile of built-in chip and preparation method thereof |
| CN111609952A (en) * | 2020-05-28 | 2020-09-01 | 机械工业勘察设计研究院有限公司 | Calibration device and method for testing pile foundation internal force by line measurement method |
| CN112854321A (en) * | 2021-01-19 | 2021-05-28 | 南京大学 | Device and method for detecting integrity of cast-in-situ bored pile based on distributed acoustic sensing technology |
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| CN102207449A (en) * | 2011-03-16 | 2011-10-05 | 东南大学 | Test method for bonding stress between fiber reinforced plastic bar and concrete |
| CN202208916U (en) * | 2011-08-17 | 2012-05-02 | 江苏建华管桩有限公司 | High-strength concrete prefabricated pile |
| CN203498827U (en) * | 2013-10-22 | 2014-03-26 | 中铁十三局集团第五工程有限公司 | Anti-floating glass fiber reinforced plastic bar and steel bar reinforcement cage used for underground engineering construction |
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| 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 |
| CN105332338A (en) * | 2015-11-25 | 2016-02-17 | 苏州大学 | Self-sensing FRP rib-reinforced concrete column |
| CN105696635A (en) * | 2016-04-05 | 2016-06-22 | 王永洪 | Device for testing internal force of body of prestressed pipe pile with embedded stressed reinforcing steel bars |
| CN106087979A (en) * | 2016-07-28 | 2016-11-09 | 安徽省建筑科学研究设计院 | A kind of steel reinforcement framework cage in concrete precast pile |
| CN106291852A (en) * | 2016-09-28 | 2017-01-04 | 广西大学 | A kind of Intelligent Composite muscle of built-in fiber bragg grating |
| CN106677231A (en) * | 2016-12-13 | 2017-05-17 | 河海大学 | Refined measurement method for pile body deformation of cast-in-place pile |
| CN206887946U (en) * | 2017-06-07 | 2018-01-16 | 安徽省建筑科学研究设计院 | A kind of glass fibre rib concrete pile containing optical fiber |
-
2017
- 2017-06-07 CN CN201710422081.8A patent/CN107130598A/en active Pending
Patent Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH09292375A (en) * | 1996-04-30 | 1997-11-11 | Takenaka Komuten Co Ltd | Nondestructive testing method for pile and building |
| CN1888330A (en) * | 2006-07-25 | 2007-01-03 | 南京大学 | Bored concrete pile foundation distributing optical fiber sensing detecting method and system |
| CN102207449A (en) * | 2011-03-16 | 2011-10-05 | 东南大学 | Test method for bonding stress between fiber reinforced plastic bar and concrete |
| CN202208916U (en) * | 2011-08-17 | 2012-05-02 | 江苏建华管桩有限公司 | High-strength concrete prefabricated pile |
| CN203498827U (en) * | 2013-10-22 | 2014-03-26 | 中铁十三局集团第五工程有限公司 | Anti-floating glass fiber reinforced plastic bar and steel bar reinforcement cage used for underground engineering construction |
| CN103673911A (en) * | 2013-12-12 | 2014-03-26 | 河海大学 | Cast-in-place concrete major-diameter pipe pile body strain monitoring method based on BOTDA |
| CN103669429A (en) * | 2013-12-12 | 2014-03-26 | 河海大学 | Round solid concrete pile body strain monitoring method based on FBG sensor |
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| CN106087979A (en) * | 2016-07-28 | 2016-11-09 | 安徽省建筑科学研究设计院 | A kind of steel reinforcement framework cage in concrete precast pile |
| CN106291852A (en) * | 2016-09-28 | 2017-01-04 | 广西大学 | A kind of Intelligent Composite muscle of built-in fiber bragg grating |
| CN106677231A (en) * | 2016-12-13 | 2017-05-17 | 河海大学 | Refined measurement method for pile body deformation of cast-in-place pile |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107587503A (en) * | 2017-10-09 | 2018-01-16 | 浙江科技学院 | The stake and auxiliary pile sinking method that static pressure sinks are aided in liquefiable sandy soil |
| CN107745441A (en) * | 2017-11-14 | 2018-03-02 | 青岛理工大学 | Fiber grating sensing system is embedded in a kind of PHC pile tubes forming process and test device |
| CN109778840A (en) * | 2019-01-25 | 2019-05-21 | 南京钜力智能制造技术研究院有限公司 | A kind of concrete precast pile of built-in chip and preparation method thereof |
| CN109778840B (en) * | 2019-01-25 | 2023-11-21 | 南京钜力智能制造技术研究院有限公司 | Concrete precast pile with built-in chip and manufacturing method thereof |
| CN111609952A (en) * | 2020-05-28 | 2020-09-01 | 机械工业勘察设计研究院有限公司 | Calibration device and method for testing pile foundation internal force by line measurement method |
| CN112854321A (en) * | 2021-01-19 | 2021-05-28 | 南京大学 | Device and method for detecting integrity of cast-in-situ bored pile based on distributed acoustic sensing technology |
| CN112854321B (en) * | 2021-01-19 | 2022-07-12 | 南京大学 | Device and method for detecting integrity of cast-in-situ bored pile based on distributed acoustic sensing technology |
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Application publication date: 20170905 |