CN108221962A - A kind of friction pile that more monitorings can be achieved and preparation method thereof - Google Patents
A kind of friction pile that more monitorings can be achieved and preparation method thereof Download PDFInfo
- Publication number
- CN108221962A CN108221962A CN201810022573.2A CN201810022573A CN108221962A CN 108221962 A CN108221962 A CN 108221962A CN 201810022573 A CN201810022573 A CN 201810022573A CN 108221962 A CN108221962 A CN 108221962A
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- China
- Prior art keywords
- pile
- data processor
- early warning
- concrete
- warning indicator
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Classifications
-
- 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
- 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
- E02D5/58—Prestressed concrete piles
-
- 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
Abstract
Invention provides a kind of friction pile that more monitorings can be achieved and preparation method thereof.The friction pile includes concrete-pile, 3 early warning indicator lights and data processor.Steel reinforcement cage is laid in the concrete-pile.The side wall and stake top of the concrete-pile are provided with several grooves being embedded in for sensor, early warning indicator light and data processor.During work, the bottom of the concrete-pile is stretched in slope soil.The pore water pressure sensor monitors pile peripheral earth pore water pressure, soil pressure sensing meter monitoring pile peripheral earth soil pressure, inclinometer monitoring pile body gradient.When any index signal is more than data processor preset value, data processor outputs signal to corresponding early warning indicator light.Early warning indicator light is bright.The production method of the friction pile includes making pile die and steel reinforcement cage, lays sensor, applies prestressing force.The friction pile simplifies the structure of automatic warning device, applied widely, and installation is convenient, good economy performance.
Description
Technical field
The present invention relates to civil construction project technical field, more particularly to a kind of friction piles that more monitorings can be achieved and its
Production method.
Background technology
Landslide is that a kind of geological disaster that is most wide, endangering most serious is distributed in Slope Failure pattern.China be in the world by
Landslide disaster loses one of country the most serious.With economic construction of China flourish, Three Gorges Projects, Qinghai-Tibet Railway,
Large quantities of Important Projects to involve the interests of the state and the people such as transfering natural gas from the west to the east, transferring electricity from the west to the east and Wenchuan earthquake post-disaster reconstruction sequentially activate, item
Deeply by the serious harm of landslide disaster and potential threat in mesh implementation process, friction pile as Landslide main means it
One, extremely wide application is achieved in landslide control engineering.
Due to landslide disaster, it is difficult to predict main to supervise at present to its Preventing Countermeasures mainly based on field monitoring early warning
Content is surveyed to include：Inside slopes, slope epitope move；Slope foot soil pressure；WATER LEVEL CHANGES, water, Features of Hydrochemistry etc..Pass through this
A little work, obtain related data and data, foundation are provided for slide prediction and diaster prevention and control.Except general surface survey and macroscopic view are seen
Outside examining, it can be observed and record using a variety of instruments.It is common to have the dipmeter for measuring slope-mass slide displacement and crack progressing, also
Deformeter, sseismograph, geophone, electric instrument etc..But the use of Yi Shang monitoring method and instrument takes time and effort, and provides urgent early warning
The possibility of effect is smaller.
Invention content
The object of the present invention is to provide a kind of friction pile that more monitorings can be achieved and preparation method thereof, to solve existing skill
The problem of art.
To realize the present invention purpose and the technical solution adopted is that such, a kind of friction piles that more monitorings can be achieved,
Including concrete-pile, 3 early warning indicator lights and data processor.
Steel reinforcement cage is laid in the concrete-pile.The steel reinforcement cage includes vertical muscle and stirrup.The vertical muscle is applied with pre-
Stress.The side wall and stake top of the concrete-pile, which are provided with, several to be embedded in for sensor, early warning indicator light and data processor
Groove.
The data processor is embedded in the stake top of concrete-pile.Reading plotter is provided in the data processor.Institute
It states data processor and is preset with index signal early warning value.The index signal includes pile peripheral earth pore water pressure, pile peripheral earth soil
Pressure and pile body inclining degree.
3 early warning indicator lights are embedded on the pile body side wall of concrete-pile upper end.On the concrete-pile pile body side wall
Also it is embedded with several pore water pressure sensors, soil pressure sensing meter and inclinometer.The pore water pressure sensor, soil pressure pass
Sense meter and inclinometer are connect by sensing line with data processor.The early warning indicator light is also by sensing line and data processor
Connection.3 early warning indicator lights correspond to pile peripheral earth pore water pressure, pile peripheral earth soil pressure and pile body inclining degree respectively.
During work, the bottom of the concrete-pile is stretched in slope soil.The pore water pressure sensor monitoring stake week
Soil body pore water pressure, soil pressure sensing meter monitoring pile peripheral earth soil pressure, inclinometer monitoring pile body gradient.The pore water pressure
Sensor, soil pressure sensing meter and the collected data of inclinometer pass to data processor by sensing line.Data processor
These data are converted into numerical value storage.When any index signal is more than data processor preset value, data processor output
Signal is to corresponding early warning indicator light.Early warning indicator light is bright.
Further, the side wall of the concrete-pile and stake top are provided with several supply at sensor, early warning indicator light and data
Manage the groove of device insertion.
Further, the index signal early warning value of the data processor includes safety value and limiting value.When index signal surpasses
When crossing safety value, data processor controlled early warning indicator light glassy yellow.When index signal over-limit condition, data processor control
Early warning indicator light shiny red processed.
Invention additionally discloses a kind of production method about the above-mentioned prefabricated friction pile that more monitorings can be achieved, including following
Step：
1) pile die and steel reinforcement cage are made.Wherein, the hollow cylinder of generally one upper end opening of the pile die.Institute
It states and is reserved on pile die inner wall for pore water pressure sensor, soil pressure sensing meter, inclinometer, early warning indicator light and data processing
The groove of device insertion.The pile die bottom offers through-hole.
2) pore water pressure sensor, soil pressure sensing meter, inclinometer, early warning indicator light and data processor are entrenched in pair
In the pile die groove answered.Steel reinforcement cage is laid in the inner cavity of pile die.Wherein, stake mould is stretched out in the upper end of the vertical muscle of steel reinforcement cage
The upper end of tool is open, and through-hole is stretched out in lower end.
3) prestressing force is applied to the vertical muscle of steel reinforcement cage.
4) by the upper end opening of pile die into the inner cavity of pile die concrete perfusion.
5) concrete is conserved, until concrete reaches age.The pore water pressure sensor, soil pressure sensing
Meter, inclinometer, early warning indicator light and data processor and concrete cementation solidifying are whole.
6) stop stretching the upper and lower side of vertical muscle.Remove pile die.
7) the vertical muscle for exposing concrete-pile upper and lower surface is wiped out.
Further, the pile die can axially be split as two panels split cavity.The two panels split cavity can tightly close reality.Institute
It states and several stirrups is cased with outside pile die.The stirrup clamps pile die.
The solution have the advantages that unquestionable：
A. soil pressure variation, the water-cut variation of slopes and the land movement in stake week that can be before comprehensive monitoring friction pile
Etc. data and recorded；
B. the structure of automatic warning device is simplified, when any one parameter in monitoring data reaches set early warning value just
Early warning；
C. applied widely, installation is convenient, good economy performance.
Description of the drawings
Fig. 1 is anti-slide pile structure schematic diagram；
Fig. 2 is friction pile operating diagram；
Fig. 3 is pile die structure diagram；
Fig. 4 is split cavity structure diagram.
In figure：Concrete-pile 1, pore water pressure sensor 2, soil pressure sensing meter 3, inclinometer 4, early warning indicator light 5, data
Processor 6, pile die 7, split cavity 701, through-hole 702, sensor recess 703, indicator light groove 704, processor groove 705,
Stirrup 8.
Specific embodiment
With reference to embodiment, the invention will be further described, but should not be construed the above-mentioned subject area of the present invention only
It is limited to following embodiments.Without departing from the idea case in the present invention described above, according to ordinary skill knowledge and used
With means, various replacements and change are made, should all be included within the scope of the present invention.
Embodiment 1：
The present embodiment discloses a kind of friction pile that more monitorings can be achieved, including 1,3 early warning indicator light 5 of concrete-pile
With data processor 6.
Referring to Fig. 2, steel reinforcement cage is laid in the concrete-pile 1.The steel reinforcement cage includes vertical muscle and stirrup.In this implementation
In example, main reinforcement quantity is 8, stirrup spacing 150mm.The vertical muscle is applied with prestressing force.The side wall of the concrete-pile 1 and
Stake top is provided with the groove being embedded in for sensor, early warning indicator light 5 and data processor 6.
Referring to Fig. 1, the data processor 6 is embedded in the stake top of concrete-pile 1.It is provided in the data processor 6
Reading plotter.The data processor 6 is preset with index signal early warning value.The index signal early warning value includes safety value and pole
Limit value.The index signal includes pile peripheral earth pore water pressure, pile peripheral earth soil pressure and pile body inclining degree.
3 early warning indicator lights 5 are embedded on 1 upper end pile body side wall of concrete-pile.The 1 pile body side wall of concrete-pile
On be also embedded with pore water pressure sensor 2, soil pressure sensing meter 3 and inclinometer 4.The pore water pressure sensor 2, soil pressure
Sensing gauge 3 and inclinometer 4 are connect by sensing line with data processor 6.The early warning indicator light 5 is also by sensing line and number
It is connected according to processor 6.The sensing line is wrapped on steel reinforcement cage.3 early warning indicator lights 5 correspond to pile peripheral earth pore water respectively
Pressure, pile peripheral earth soil pressure and pile body inclining degree.
During work, the bottom of the concrete-pile 1 is stretched in slope soil, and stake top is basseted.The pore water pressure
Sensor 2 monitors pile peripheral earth pore water pressure, and soil pressure sensing meter 3 monitors pile peripheral earth soil pressure, and inclinometer 4 monitors pile body and inclines
Gradient.The pore water pressure sensor 2, soil pressure sensing meter 3 and 4 collected data of inclinometer pass to number by sensing line
According to processor 6.These data are converted into numerical value storage by data processor 6.When any index signal is more than that data processor 6 is pre-
If during value, data processor 6 outputs signal to corresponding early warning indicator light 5.When index signal is more than safety value, data processing
Device 6 controls 5 glassy yellow of early warning indicator light.When index signal over-limit condition, data processor 6 controls early warning indicator light 5 bright
It is red.
What deserves to be explained is in the present embodiment, the pore water pressure sensor 2 selects the bus-type pore water of voltage-type
Pressure meter.The pore water pressure sensor 2 includes sensor main body, installation sleeve and water conservancy project cable.The pore water pressure sensing
Device 2 can automatically convert to measured data, directly output monitoring physical quantity, without artificial conversion.The soil pressure passes
Sense meter 3 selects type vibration wire earth pressure gauge.The soil pressure sensing meter 3 include backboard, tablet, signal-transmitting cable, vibratory string and
Exciting electromagnetic coil.When pile peripheral earth soil pressure changes, the variation of stress is experienced in earth pressure gauge tablet synchronization, sensing
Plate will be deformed, and displacement transfer is transformed into the variation of vibratory string stress to vibratory string, so as to change the vibration frequency of vibratory string.Electromagnetism
Coil exciting vibratory string simultaneously measures its vibration frequency, and frequency signal is transmitted to data processor 6 through sensing line, you can measures soil around pile
Body soil pressure.In actual production, VWE-0.4, VWE-0.6, VWE-0.8, VWE-1, VWE-1.6, VWE-2.5 etc. can be selected is
Row model.The inclinometer 4 includes inclinometer casing, clinometer probe, control cable and deviational survey readout instrument.
Embodiment 2：
The present embodiment discloses a kind of production method about the prefabricated friction pile that more monitorings can be achieved described in embodiment 1,
Include the following steps：
1) pile die 7 and steel reinforcement cage are made.Wherein, referring to Fig. 3 and Fig. 4, a pile die 7 generally upper end opens
The hollow cylinder of mouth.The 7 upper end inner wall of pile die is disposed with the processor groove 705 being embedded in for data processor 6 and 3
The indicator light groove 704 being embedded in for early warning indicator light 5.7 inner wall of pile die there also is provided 3 row's sensor recess 703, for disposing
Pore water pressure sensor 2, soil pressure sensing meter 3 and inclinometer 4.Pore water pressure sensor 2, soil pressure sensing meter 3, inclinometer 4,
Early warning indicator light 5 and data processor 6 match with the size of respective slot.7 bottom of pile die offers through-hole
702.The pile die 7 can axially be split as two panels split cavity 701.The two panels split cavity 701 can tightly close reality.It is described
7 outer cover of pile die is equipped with 2 stirrups 8.The stirrup 8 clamps pile die 7.The stirrup 8 is movable, can flexibly be torn open
It unloads.
2) it is pore water pressure sensor 2, soil pressure sensing meter 3, inclinometer 4, early warning indicator light 5 and data processor 6 is embedding
It closes in corresponding 7 groove of pile die.Steel reinforcement cage is laid in the inner cavity of pile die 7.Sensing line is wrapped on steel reinforcement cage.Its
In, the upper end opening of pile die 7 is stretched out in the upper end of the vertical muscle of steel reinforcement cage, and through-hole 702 is stretched out in lower end.It indulges between muscle and through-hole 702
Gap be sealed using fluid sealant.
3) assembly of pile die 7 and steel reinforcement cage is sling, be vertically installed on fixing bracket, is sent into stretching-machine, drawn
The upper and lower end of vertical muscle is stretched, prestressing force is applied to the vertical muscle of steel reinforcement cage.
4) by the upper end opening of pile die 7 into the inner cavity of pile die 7 concrete perfusion, and vibration compacting.
5) concrete is conserved, until concrete reaches age.The pore water pressure sensor 2, soil pressure sensing
Meter 3, inclinometer 4, early warning indicator light 5 and data processor 6 are whole with concrete cementation solidifying.Reach the coagulation after age
Native intensity is not less than C50.
6) stop stretching the upper and lower side of vertical muscle.Concrete-pile 1 after molding and pile die 7 are kept flat, stirrup 8 is unclamped,
Two panels split cavity 701 is removed successively.
7) the vertical muscle for exposing 1 upper and lower surface of concrete-pile is wiped out.
Claims (5)
1. a kind of friction pile that more monitorings can be achieved, it is characterised in that：Including 1,3 early warning indicator light (5) of concrete-pile and
Data processor (6)；
Steel reinforcement cage is laid in the concrete-pile (1)；The steel reinforcement cage includes vertical muscle and stirrup；The vertical muscle is applied with pre- answer
Power；
The data processor (6) is embedded in the stake top of concrete-pile (1)；Reading dress is provided in the data processor (6)
It puts；The data processor (6) is preset with index signal early warning value；The index signal includes pile peripheral earth pore water pressure, stake
Zhou Tuti soil pressures and pile body inclining degree；
3 early warning indicator lights (5) are embedded on the pile body side wall of concrete-pile (1) upper end；Concrete-pile (1) the pile body side
Several pore water pressure sensors (2), soil pressure sensing meter (3) and inclinometer (4) are also embedded on wall.The pore water pressure passes
Sensor (2), soil pressure sensing meter (3) and inclinometer (4) are connect by sensing line with data processor (6)；The early warning instruction
Lamp (5) is connect also by sensing line with data processor (6)；3 early warning indicator lights (5) correspond to pile peripheral earth pore water respectively
Pressure, pile peripheral earth soil pressure and pile body inclining degree；
During work, the bottom of the concrete-pile (1) is stretched in slope soil；Pore water pressure sensor (2) monitoring stake
Zhou Tuti pore water pressures, soil pressure sensing meter (3) monitoring pile peripheral earth soil pressure, inclinometer (4) monitoring pile body gradient；It is described
Pore water pressure sensor (2), soil pressure sensing meter (3) and inclinometer (4) collected data pass to data by sensing line
Processor (6)；These data are converted into numerical value storage by data processor (6)；When any index signal is more than data processor
(6) during preset value, data processor (6) outputs signal to corresponding early warning indicator light (5)；Early warning indicator light (5) is bright.
2. a kind of friction pile that more monitorings can be achieved according to claim 1, it is characterised in that：The concrete-pile
(1) side wall and stake top is provided with several grooves embedded for sensor, early warning indicator light (5) and data processor (6).
3. a kind of friction pile that more monitorings can be achieved according to claim 1, it is characterised in that：The data processor
(6) index signal early warning value includes safety value and limiting value；When index signal is more than safety value, data processor (6) control
Early warning indicator light (5) glassy yellow processed；When index signal over-limit condition, data processor (6) control early warning indicator light (5) is bright
It is red.
A kind of 4. production method about the prefabricated friction pile that more monitorings can be achieved described in claim 1, which is characterized in that packet
Include following steps：
1) pile die (7) and steel reinforcement cage are made；Wherein, the hollow cylinder of the generally one upper end opening of pile die (7)；
It is reserved on pile die (7) inner wall and refers to for pore water pressure sensor (2), soil pressure sensing meter (3), inclinometer (4), early warning
Show lamp (5) and the groove of data processor (6) insertion；Pile die (7) bottom offers through-hole (702)；
2) by pore water pressure sensor (2), soil pressure sensing meter (3), inclinometer (4), early warning indicator light (5) and data processor
(6) it is entrenched in corresponding pile die (7) groove；Steel reinforcement cage is laid in the inner cavity of pile die (7)；Wherein, steel reinforcement cage
The upper end that pile die (7) is stretched out in the upper end of vertical muscle is open, and through-hole (702) is stretched out in lower end；
3) prestressing force is applied to the vertical muscle of steel reinforcement cage；
4) by the upper end opening of pile die (7) into the inner cavity of pile die (7) concrete perfusion；
5) concrete is conserved, until concrete reaches age；The pore water pressure sensor (2), soil pressure sensing meter
(3), inclinometer (4), early warning indicator light (5) and data processor (6) are whole with concrete cementation solidifying；
6) stop stretching the upper and lower side of vertical muscle；Remove pile die (7)；
7) the vertical muscle for exposing concrete-pile (1) upper and lower surface is wiped out.
5. production method according to claim 1, it is characterised in that：The pile die (7) can axially be split as two panels
Split cavity (701)；The two panels split cavity (701) can tightly close reality；Several stirrups are cased with outside the pile die (7)
(8)；The stirrup (8) clamps pile die (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810022573.2A CN108221962A (en) | 2018-01-10 | 2018-01-10 | A kind of friction pile that more monitorings can be achieved and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810022573.2A CN108221962A (en) | 2018-01-10 | 2018-01-10 | A kind of friction pile that more monitorings can be achieved and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108221962A true CN108221962A (en) | 2018-06-29 |
Family
ID=62640739
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810022573.2A Pending CN108221962A (en) | 2018-01-10 | 2018-01-10 | A kind of friction pile that more monitorings can be achieved and preparation method thereof |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109706981A (en) * | 2018-12-29 | 2019-05-03 | 中铁二院工程集团有限责任公司 | The shake table model system of high gradient slope pier footing stress deformation characteristic |
| CN110260843A (en) * | 2019-07-23 | 2019-09-20 | 杭州迪林网络科技有限公司 | A kind of utilization closes the switch the scaffold inclination prior-warning device to form complete circuit |
| CN112761142A (en) * | 2020-12-24 | 2021-05-07 | 黄志生 | Building pile with built-in detection sensing equipment |
| CN113325074A (en) * | 2021-05-24 | 2021-08-31 | 机械工业第九设计研究院有限公司 | Concrete hollow early warning method and monitoring early warning system in construction process |
| CN114279812A (en) * | 2021-12-09 | 2022-04-05 | 青岛理工大学 | Test device for simulating precast pile hammering pile sinking |
| CN114411720A (en) * | 2022-01-17 | 2022-04-29 | 哈尔滨工业大学 | Device for reinforcing coordination stress performance of pile soil by pouring cement paste and construction method |
| CN115324079A (en) * | 2022-07-28 | 2022-11-11 | 四川省公路规划勘察设计研究院有限公司 | Variable cross-section early warning anti-slide pile |
| CN114279812B (en) * | 2021-12-09 | 2024-05-03 | 青岛理工大学 | Test device for simulating pile sinking of precast pile hammering |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109706981A (en) * | 2018-12-29 | 2019-05-03 | 中铁二院工程集团有限责任公司 | The shake table model system of high gradient slope pier footing stress deformation characteristic |
| CN109706981B (en) * | 2018-12-29 | 2023-09-22 | 中铁二院工程集团有限责任公司 | Vibrating table model test system for high-steep slope pier foundation stress deformation characteristics |
| CN110260843A (en) * | 2019-07-23 | 2019-09-20 | 杭州迪林网络科技有限公司 | A kind of utilization closes the switch the scaffold inclination prior-warning device to form complete circuit |
| CN112761142A (en) * | 2020-12-24 | 2021-05-07 | 黄志生 | Building pile with built-in detection sensing equipment |
| CN113325074A (en) * | 2021-05-24 | 2021-08-31 | 机械工业第九设计研究院有限公司 | Concrete hollow early warning method and monitoring early warning system in construction process |
| CN113325074B (en) * | 2021-05-24 | 2023-12-05 | 机械工业第九设计研究院股份有限公司 | Concrete hollow early warning method and monitoring early warning system in construction process |
| CN114279812A (en) * | 2021-12-09 | 2022-04-05 | 青岛理工大学 | Test device for simulating precast pile hammering pile sinking |
| CN114279812B (en) * | 2021-12-09 | 2024-05-03 | 青岛理工大学 | Test device for simulating pile sinking of precast pile hammering |
| CN114411720A (en) * | 2022-01-17 | 2022-04-29 | 哈尔滨工业大学 | Device for reinforcing coordination stress performance of pile soil by pouring cement paste and construction method |
| CN115324079A (en) * | 2022-07-28 | 2022-11-11 | 四川省公路规划勘察设计研究院有限公司 | Variable cross-section early warning anti-slide pile |
| CN115324079B (en) * | 2022-07-28 | 2023-12-22 | 四川省公路规划勘察设计研究院有限公司 | Variable cross-section early warning slide-resistant pile |
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