CN110306610A - A kind of built-in sensors method for embedding for concrete precast pile - Google Patents
A kind of built-in sensors method for embedding for concrete precast pile Download PDFInfo
- Publication number
- CN110306610A CN110306610A CN201910562210.2A CN201910562210A CN110306610A CN 110306610 A CN110306610 A CN 110306610A CN 201910562210 A CN201910562210 A CN 201910562210A CN 110306610 A CN110306610 A CN 110306610A
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- sensor
- main reinforcement
- embedding
- fixed
- prestressing force
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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
- E02D33/00—Testing foundations or foundation structures
-
- 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
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2200/00—Geometrical or physical properties
- E02D2200/17—Geometrical or physical properties including an electric conductive element
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2600/00—Miscellaneous
- E02D2600/10—Miscellaneous comprising sensor means
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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 invention discloses a kind of built-in sensors method for embedding for concrete precast pile, comprising the following steps: Step 1: being needed that 3 to 6 sensors are arranged along main reinforcement direction at least one cross section of pile body or perpendicular to prestressing force main reinforcement direction according to research and design；Step 2: sensor conductor is close to the fixed device binding of prestressing force main reinforcement in prestressing force main reinforcement after the completion of sensor is embedded；Sensor conductor leads to stake top direction along prestressing force main reinforcement, and binding stretches out sensor conductor beam from stake top direction at a branch of and draw at cross brace reinforcing bar；Step 3: fixed steel bars are arranged as uniformly being welded and fixed with concentric circles perpendicular to end plate section and prestressing force main reinforcement, sensor conductor beam is stretched out around fixed steel bars around lopping and fixation；Step 4: sensor conductor disk is put after fixing, concrete precast pile is prepared according to centrifugal process.The advantage is that: method for embedding is simple, conducting wire, sensor are fixed reliable, sensor high survival rate.
Description
Technical field
The present invention relates to concrete precast pile technical field of construction, a kind of especially built-in biography for concrete precast pile
Sensor method for embedding.
Background technique
Pile foundation is seen everywhere in coastal area, and pile foundation has become present indispensable one of various building fields
Point.Presently, there are pile foundation be broadly divided into two major classes from construction method angle: one kind is cast in situs, a kind of prefabrication.
With the propulsion of China's process of industrialization, increasingly promotion energy-saving and emission-reduction industrialize, are integrated；Prefabrication on the one hand can be with
Guarantee quality, one side prefabrication is high-efficient, and resource utilization is high.
It is also different for the bearing capacity force-mechanism of all kinds of pile-type, all kinds of advanced biographies are needed when studying bearing capacity
Sensor etc. tests and analyzes the stress condition of pile body, leads currently, usually will appear sensor during sensor is embedded
Line buries difficulty, sensor failure (survival rate is low), sensor shift lead to all kinds of problems such as Data Detection inaccuracy.Therefore,
It needs to be further improved the sensor method for embedding of concrete precast pile.
Summary of the invention
It is simple that the technical problem to be solved by the invention for the present situation of prior art is to provide method for embedding, conducting wire, biography
Sensor is fixed reliable, a kind of built-in sensors method for embedding for concrete precast pile of sensor high survival rate.
The technical scheme of the invention to solve the technical problem is:
A kind of built-in sensors method for embedding for concrete precast pile, comprising the following steps:
Step 1: sensor is arranged: being needed at least one cross section of pile body according to research and design along main reinforcement direction
Or sensor is set perpendicular to prestressing force main reinforcement direction, 3 to 6 sensors are set on same cross section；
Step 2: the embedded and extraction of sensor conductor: after the completion of sensor is embedded, sensor conductor is close to prestressing force main reinforcement
With fixed device binding in prestressing force main reinforcement；Sensor conductor leads to stake top direction along prestressing force main reinforcement, along pile body cross
Binding stretches out sensor conductor beam from stake top direction at a branch of and draw at the cross brace reinforcing bar of cross-wise direction setting；
It is fixed Step 3: stretching out conducting wire: welding 4 to 6 fixed steel bars on pile end plate, the fixed steel bars are perpendicular to end
Plate section is arranged as uniformly being welded and fixed with concentric circles with prestressing force main reinforcement, stretches out sensor conductor beam and is coiled into around fixed steel bars
Circle, and be fixed in fixed steel bars with fixed device；
Step 4: wire disk puts rear piling production: after sensor conductor disk puts fixation, being prepared according to centrifugal process concrete prefabricated
Stake.
The technical measures of optimization further include:
Above-mentioned fixation device is binding strap or electrical adhesive tape.
The diameter of above-mentioned fixed steel bars is 14mm to 25mm, and the length of the fixed steel bars is 400mm to 600mm.
The head outward bending of above-mentioned fixed steel bars forms mousing-hook.
The length of above-mentioned mousing-hook is 40mm to 60mm.
Above-mentioned sensor conductor is along prestressing force main reinforcement every the fixed device binding and fixing of 300mm to 500mm.
Above-mentioned cross brace steel-bar arrangement is at stake top 200mm to 500mm.
On above-mentioned pile body, sensor is respectively set on 1 to 4 cross section.
A kind of built-in sensors method for embedding for concrete precast pile of the invention, method for embedding is simple, will sense
Device conducting wire is fixed along prestressing force main reinforcement direction, and is stretched out from stake top, and the sensor conductor of convergence is fixed using cross brace reinforcing bar
Afterwards, it then is wound in fixed steel bars, ensure that fixed reliability, can guarantee the survival rate of sensor；In addition, this sensor
3 to 6 sensors are arranged in method for embedding on same cross section, on the one hand can cause sensor to avoid axially eccentric stress
Data do not have representativeness, on the other hand exclude a sensor and fails accidentally the case where causing whole cross section no data, guarantee
The accuracy of measurement.
Detailed description of the invention
Fig. 1 is the schematic diagram of concrete precast pile built-in sensors method for embedding of the present invention；
Fig. 2 is the portion A enlarged drawing in Fig. 1；
Fig. 3 is the portion B enlarged drawing in Fig. 1；
Fig. 4 is the structural schematic diagram of cross brace steel area in Fig. 1；
Fig. 5 is the structural schematic diagram of fixed steel bars in Fig. 1.
Specific embodiment
The present invention will be described in further detail below with reference to the embodiments of the drawings.
It is as shown in Figures 1 to 5 structural schematic diagram of the invention,
Appended drawing reference therein are as follows: pile body 1, end plate 11, sensor 2, sensor conductor 3, prestressing force main reinforcement 4, fixed device 5,
Cross brace reinforcing bar 6, fixed steel bars 7, mousing-hook 71.
As shown in Figures 1 to 5,
A kind of built-in sensors method for embedding for concrete precast pile, comprising the following steps:
Step 1: sensor is arranged: being needed at least one cross section of pile body 1 according to research and design along main reinforcement direction
Or sensor 2 (cosine formula, optical fiber etc.) is set perpendicular to prestressing force main reinforcement direction, 3 to 6 sensings of setting on same cross section
Device 2；In this way, sensing data on the one hand can be caused not have representativeness to avoid axially eccentric stress, on the other hand arrange
Except a sensor fails situations such as causing whole cross section no data accidentally.It, can be at 1 to 4 of pile body 1 according to measurement demand
Sensor 2 is respectively set on a cross section, to detect the stress condition of different cross section.
Step 2: the embedded and extraction of sensor conductor: after the completion of sensor 2 is embedded, sensor conductor 3 is close to pre- answer
Advocate muscle 4 every 300mm to 500mm with the fixed binding of device 5 in prestressing force main reinforcement 4；It, cannot when sensor conductor 3 is fixed
Too tightly can not be too loose, it need to guarantee certain slackness, prevent during prestressed stretch-draw wire-break, while also to protect
Card sensor conductor 3 is close to prestressing force main reinforcement 4 and prevents from being added in concrete sensor conductor 3 pounded pine exposing the later period is caused to pass
The destruction of sensor conducting wire 3.Sensor conductor 3 leads to the (fixation in prefabricated pile production process of stake top direction along prestressing force main reinforcement 4
Extreme direction), binding makes sensor conductor at a branch of and draw at the cross brace reinforcing bar 6 being arranged along pile body cross-sectional direction
Beam is stretched out from stake top direction.The cross brace reinforcing bar 6 is set at stake top 200mm to 500mm；It is too close apart from stake mouth
Piling production is inconvenient to will increase a possibility that sensor conductor 3 is destroyed, and binds apart from too far inconvenient sensor conductor 3,
Because needing artificial arm from going deep into piling inner hole binding at stake mouth when converging to cross brace reinforcing bar 6.Sensor conductor
After 3 are pooled to 6 four endpoints of nearest cross brace reinforcing bar before 6 burial place of cross brace reinforcing bar along tie hoop, edge
6 direction of cross brace reinforcing bar be finally aggregated into 6 joint of cross brace reinforcing bar binding at it is a branch of from stake top direction stretch out.
It is fixed Step 3: stretching out conducting wire: welding 4 to 6 fixed steel bars 7 on pile end plate, the fixed steel bars 7 are hung down
It directly is arranged as uniformly being welded and fixed with concentric circles with prestressing force main reinforcement 4 in 11 section of end plate, stretches out sensor conductor beam around solid
Reinforcing bar 7 is determined around lopping, and is fixed in fixed steel bars 7 with fixed device 5.The diameter of the fixed steel bars 7 be 14mm extremely
25mm, the length of the fixed steel bars 7 are 400mm to 600mm；The head outward bending of the fixed steel bars 7 forms length
Degree is the mousing-hook 71 of 40mm to 60mm.Sensor conductor 3 should reduce connector to the greatest extent in use, preferably from sensor
Head arrives the complete conducting wire in detection data position one, can greatly reduce the probability of the failure of sensor conductor 3 in this way, while can also
To improve the Stability and veracity of data.So sensor conductor 3 will be long during longer pile foundation construction, generally
The stake of piling is long not to exceed 15 meters, will result in long one section of sensor conductor 3 leakage other than stake is long, in order to protect
Leak outside conducting wire, therefore reinforcing bar 7 is welded and fixed on pile end plate 11, and the sensor conductor 3 of stretching winds lopping in fixed steel bars 7, and
It is fixed.During prefabricated pile later period centrifugal forming under huge centrifugal force (centrifugal rotational speed reaches 60 hertz) effect, sensor is led
Line 3 can be followed by piling and do centrifugal movement, and 3 extension of sensor conductor is fastened in fixed steel bars 7, and guarantee centrifugation is transported
When dynamic, sensor conductor 3 will not be got rid of disconnected, play the role of protecting conducting wire well.Mousing-hook is arranged in the head of fixed steel bars 7
71, sensor conductor 3 can be effectively prevent to skid off during high speed centrifugation.
Step 4: wire disk puts rear piling production: after 3 disk of sensor conductor puts fixation, preparing concrete according to centrifugal process
Prefabricated pile.Prefabricated pile manufacturing process is identical using centrifugal process preparation method as normal concrete prefabricated pile.
Above-mentioned fixation device 5 is binding strap or electrical adhesive tape.
Highly preferred embodiment of the present invention has illustrated, and the various change or remodeling made by those of ordinary skill in the art are not
It can depart from the scope of the present invention.
Claims (8)
1. a kind of built-in sensors method for embedding for concrete precast pile, it is characterized in that: the following steps are included:
Step 1: sensor is arranged: being needed at least one cross section of pile body (1) according to research and design along main reinforcement side
Sensor (2) are set to or perpendicular to prestressing force main reinforcement direction, 3 to 6 sensors (2) are set on same cross section；
Step 2: the embedded and extraction of sensor conductor: after the completion of sensor (2) is embedded, sensor conductor (3) is close to pre- answer
Muscle (4) use fixed device (5) binding is advocated on prestressing force main reinforcement (4)；Sensor conductor (3) is logical along prestressing force main reinforcement (4)
To stake top direction, binding makes sensor at a branch of and draw at the cross brace reinforcing bar (6) being arranged along pile body cross-sectional direction
Bundle conductor is stretched out from stake top direction；
It is fixed Step 3: stretching out conducting wire: welding 4 to 6 fixed steel bars (7) on pile end plate, the fixed steel bars (7) are hung down
Directly be arranged as uniformly being welded and fixed with concentric circles in end plate (11) section and prestressing force main reinforcement (4), stretch out sensor conductor beam around
Fixed steel bars (7) be fixed on fixed steel bars (7) around lopping, and with fixed device (5)；
Step 4: wire disk puts rear piling production: after sensor conductor (3) disk puts fixation, it is pre- to prepare concrete according to centrifugal process
Stake processed.
2. a kind of built-in sensors method for embedding for concrete precast pile according to claim 1, it is characterized in that: institute
The fixation device (5) stated is binding strap or electrical adhesive tape.
3. a kind of built-in sensors method for embedding for concrete precast pile according to claim 1, it is characterized in that: institute
The diameter for the fixed steel bars (7) stated is 14mm to 25mm, and the length of the fixed steel bars (7) is 400mm to 600mm.
4. a kind of built-in sensors method for embedding for concrete precast pile according to claim 1, it is characterized in that: institute
The head outward bending for the fixed steel bars (7) stated forms mousing-hook (71).
5. a kind of built-in sensors method for embedding for concrete precast pile according to claim 4, it is characterized in that: institute
The length for the mousing-hook (71) stated is 40mm to 60mm.
6. a kind of built-in sensors method for embedding for concrete precast pile according to claim 1, it is characterized in that: institute
The sensor conductor (3) stated is along prestressing force main reinforcement (4) every fixed device (5) binding and fixing of 300mm to 500mm.
7. a kind of built-in sensors method for embedding for concrete precast pile according to claim 1, it is characterized in that: institute
The cross brace reinforcing bar (6) stated is set at stake top 200mm to 500mm.
8. a kind of built-in sensors method for embedding for concrete precast pile according to claim 1, it is characterized in that: institute
On the pile body (1) stated, sensor (2) are respectively set on 1 to 4 cross section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910562210.2A CN110306610A (en) | 2019-06-26 | 2019-06-26 | A kind of built-in sensors method for embedding for concrete precast pile |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910562210.2A CN110306610A (en) | 2019-06-26 | 2019-06-26 | A kind of built-in sensors method for embedding for concrete precast pile |
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| Publication Number | Publication Date |
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| CN110306610A true CN110306610A (en) | 2019-10-08 |
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| CN201910562210.2A Pending CN110306610A (en) | 2019-06-26 | 2019-06-26 | A kind of built-in sensors method for embedding for concrete precast pile |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113047422A (en) * | 2021-03-30 | 2021-06-29 | 青岛腾远设计事务所有限公司 | Building body structure convenient for intelligent sensor layout and construction method thereof |
| CN116024959A (en) * | 2023-03-29 | 2023-04-28 | 中国电力科学研究院有限公司 | Precast pile, construction method thereof and quality detection method |
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| CN116024959A (en) * | 2023-03-29 | 2023-04-28 | 中国电力科学研究院有限公司 | Precast pile, construction method thereof and quality detection method |
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Application publication date: 20191008 |
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