CN207337183U - A kind of dynamic consolidation construction data acquisition and detecting system based on impact acceleration - Google Patents
A kind of dynamic consolidation construction data acquisition and detecting system based on impact acceleration Download PDFInfo
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- CN207337183U CN207337183U CN201721254191.XU CN201721254191U CN207337183U CN 207337183 U CN207337183 U CN 207337183U CN 201721254191 U CN201721254191 U CN 201721254191U CN 207337183 U CN207337183 U CN 207337183U
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- collecting instrument
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- data acquisition
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Abstract
The utility model discloses a kind of dynamic consolidation construction data acquisition based on impact acceleration and detecting system, the dynamic consolidation construction data acquisition includes jerk acceleration transducer, data collecting instrument and logic controller with detecting system；The jerk acceleration transducer and the data collecting instrument are installed on the upper surface of hammer ram；The logic controller is installed on the cabin interior of dynamic compaction machinery；The jerk acceleration transducer is connected with the data collecting instrument；Pass through wireless network connection between the data collecting instrument and the logic controller.The utility model has the advantages that：(1) acceleration during hammer ram impact ground is gathered by informationization technology, by the transmission to gathered data, analysis and processing, the real time monitoring of dynamic consolidation construction state is realized, not only saves cost, but also improve working effect；(2) using acceleration transducer measurement impact acceleration, data are analyzed and processed using PLC logic controllers, it is reliable and stable.
Description
Technical field
It the utility model is related to field of civil engineering, and in particular to a kind of dynamic consolidation construction data based on impact acceleration are adopted
Collection and detecting system.
Background technology
Heavy-tamping method is a kind of method for processing foundation of economical and efficient.The end of the sixties in last century is by French Menard technology companies
Wound is used first, due to strong tamping technology significant effect, economy and facility, the convenient, short construction period of construction, it is applied widely the advantages that,
Rapid promotion and application have been obtained since 1975 introduce China.
The principle of dynamic compaction reinforced foundation is repeatedly freely to fall hammer ram from certain eminence, is kinetic energy by potential energy,
Very big shock wave and high stress are then produced in the soil body, so as to improve foundation strength, compressibility is reduced, improves the property of the soil body
Energy.Heavy-tamping method has the advantages that construction is simple, effect are good, expense is low etc., suitable for a variety of foundation soils, especially large area basement process
Engineering in using heavy-tamping method advantage it is very notable.
During dynamic consolidation construction, the construction parameter of record, which mainly includes ramming, to be hit number, rams energy level and click ramming volume.
Ceasing driving standard hits average ramming volume control by ramming to hit to count with last two.
At present, ram to hit to count and mainly recorded by manually surveying reading, often ram just increases once on gross
Ram and hit number.Chinese utility model patent (201662703 U of CN) discloses one kind and hits several meterings by being installed on dynamic compaction machinery
The method of electronic mechanism, record, which is rammed, hits number.But mechanism installation is complicated, and stability is poor.
The common measuring method for ramming energy level, typically weighs hammer ram before ramming, and obtains the quality of hammer ram,
Hammering quality is multiplied by hoisting depth multiplied by with acceleration of gravity, you can obtain hammer ram and ram energy level, unit kNm.
The measuring method for clicking ramming volume mainly has three kinds, is respectively：Manual measurement method, photoelectric encoder mensuration, swash
Ligh-ranging method.
Manual measurement method measures ramming volume, is after the completion of ramming every time, is vertically placed on levelling rod by a worker
At the top of hammer ram, another worker surveys the reading read on levelling rod by spirit level, and the difference of this reading and preceding single reading is made
The ramming volume rammed for this time.There is the earthing that height does not wait since hammer ram is not fully horizontal, at the top of hammer ram in this method, and
The position that worker places levelling rod is different, causes objective error in the measurement to ramming volume, meanwhile, the precision of measuring instrument,
And the accuracy of survey crew's reading will also result in human error.But this method is due to easy to operate, in practice of construction process
In be used widely.
Photoelectric encoder mensuration, is by installing photoelectric encoder on the axis of hoisting drum, and connects elevator, pass through
The output of encoder monitors whereabouts rope length in real time, and ramming volume (such as 103471541 B of CN) is clicked in calculating.This method has certain
Applicability, but equipment installation is complex, and measurement error is larger.
Laser ranging method or binocular telemetry, are to monitor hammer ram relative to laser sensor using laser range sensor
Distance, and calculating processing is carried out to data, click ramming volume (such as CN 102032896B) so as to obtain.Since construction environment is disliked
Bad, dust is more in air, easily blocks laser measurement, while usually can all be covered at the top of hammer ram by dust, may cause to survey
Error is measured, practical application effect is poor.
, it is necessary to carry out the detection of Foundation Treatment Effect to place after the completion of dynamic consolidation construction, commonly use and tried using planar loading
Test, the home position testing method such as dynamic penetration test and Standard Penetration Test.These detection methods by choosing one in the venue
The point of fixed number amount is detected, therefore has certain randomness, and detection time is longer, and shadow is be easy to cause to construction speed
Ring.
Chinese invention patent (102943461 A of CN) is disclosed a kind of reinforced using rayleigh surface wave evaluation foundation dynamic consolidation and imitated
The quantization method of fruit, this method obtain soil body maximum shear velocity of wave by laboratory test, and cutting for the front and rear soil body is rammed by contrast
Cut velocity of wave, quantitative evaluation forced ramming reinforcing effect.This method testing result is influenced by the distance of rayleigh surface wave collection point and hammer ram
Larger, practical application effect is poor.
The content of the invention
The purpose of this utility model is according in place of above-mentioned the deficiencies in the prior art, there is provided a kind of based on impact acceleration
Dynamic consolidation construction data acquisition and detecting system, the dynamic consolidation construction data acquisition is with detecting system by setting impact to add on hammer ram
Velocity sensor extrapolates the parameters such as the ramming volume of hammer ram exactly so as to measure the acceleration of hammer ram, solves in the prior art
Existing technical problem.
The utility model aim is realized and completed by following technical scheme：
A kind of dynamic consolidation construction data acquisition and detecting system based on impact acceleration, the dynamic consolidation construction data acquisition with
Detecting system includes jerk acceleration transducer, data collecting instrument and logic controller；The jerk acceleration transducer with
And the data collecting instrument is installed on the upper surface of hammer ram；The logic controller is installed on the cabin interior of dynamic compaction machinery；Institute
Jerk acceleration transducer is stated to be connected with the data collecting instrument；Pass through between the data collecting instrument and the logic controller
Wireless network connection.
The number of the jerk acceleration transducer is four, and four jerk acceleration transducers are in the upper of the hammer ram
The rectangular arrangement in surface.
The jerk acceleration transducer is fixedly connected by bolt with the hammer ram, the jerk acceleration transducer
The distance between edge of installation site and the hammer ram is more than 10cm.
The data acquisition channel of the data collecting instrument be more than four, the data collecting instrument have wireless WiFi module and
Ethernet interface.
The upper surface of the hammer ram is provided with the fixing shell for accommodating the data collecting instrument, the fixing shell
Gap between inner wall and the data collecting instrument is filled with vibration damping protection foam.
The distance between hanging axis of the installation site of the data collecting instrument and the hammer ram is more than 20cm.
The logic controller is PLC logic controllers；The logic controller include central processing unit, counting module,
Memory, display, serial expanded circuit and power supply unit.
The utility model has the advantages that：(1) acceleration during hammer ram impact ground is gathered by informationization technology, by right
Transmission, analysis and the processing of gathered data, realize the real time monitoring of dynamic consolidation construction state, not only save cost, but also improve
Working effect；(2) using acceleration transducer measurement impact acceleration, data are carried out at analysis using PLC logic controllers
Reason, it is reliable and stable；(3) acceleration signal for being collected data collecting instrument using wireless transmission method, is transmitted to PLC logic controls
In device processed, the arrangement of transmission data wire is avoided；(4) simple in structure, installation, dismounting are easy, without to original mechanical equipment into
Row transformation, available for various dynamic compaction machineries, meanwhile, influenced from extraneous construction environment, continuous working period length, stability is high.
Brief description of the drawings
Fig. 1 is the structure diagram of logic controller in the utility model；
Fig. 2 is the side view of hammer ram in the utility model；
Fig. 3 is the top view of hammer ram in the utility model.
Embodiment
The feature of the utility model and other correlated characteristics are made further specifically by embodiment below in conjunction with attached drawing
It is bright, in order to the understanding of technical staff of the same trade：
Such as Fig. 1-3, mark 1-14 is respectively in figure：Jerk acceleration transducer 1, data collecting instrument 2, logic controller 3,
Hammer ram 4, fixing shell 5, vibration damping protection foam 6, central processing unit 7, counting module 8, memory 9, display 10, serial ports expansion
Circuit 11, WiFi communication module 12, power supply unit 13, hanging axis 14.
Embodiment：As shown in Figure 1, 2, the utility model is specifically related to a kind of dynamic consolidation construction data based on impact acceleration
Collection and detecting system, the dynamic consolidation construction data acquisition include jerk acceleration transducer 1, data collecting instrument 2 with detecting system
And logic controller 3；Jerk acceleration transducer 1 and data collecting instrument 2 are installed on the upper surface of hammer ram 4；Logic control
Device 3 is installed on the cabin interior of dynamic compaction machinery；Jerk acceleration transducer 1 is connected with data collecting instrument 2；Data collecting instrument 2 with
Pass through wireless network connection between logic controller 3.
As shown in Figure 2,3, jerk acceleration transducer 1 is piezoelectric acceleration transducer in the present embodiment, sensor
Range is more than ± 500g, operating temperature range -40~120 DEG C；The number of jerk acceleration transducer 1 is four in the present embodiment,
Four jerk acceleration transducers 1 are in the rectangular arrangement in the upper surface of the hammer ram；Jerk acceleration transducer 1 by bolt with
The hammer ram 4 is rigidly connected, and the distance between the installation site of jerk acceleration transducer 1 and the edge of hammer ram 4 are more than 10cm；
Signal transmssion line is provided with 1 top of jerk acceleration transducer so that jerk acceleration transducer 1 and data collecting instrument 2 connect
Connect.
As shown in Figure 2,3, the data acquisition channel of data collecting instrument 2 be more than four, each jerk acceleration transducer 1 respectively with
One data acquisition channel connection；Data collecting instrument 2 has wireless WiFi module and Ethernet interface, so as to data collecting instrument
2 communicate with logic controller 3；Data collecting instrument 2 is internally provided with rechargeable lithium battery, and the capacity of battery causes data to adopt
When the operating time of collection instrument 2 is small not less than 8；The upper surface of hammer ram 4 is provided with the fixing shell 5 for accommodating data collecting instrument 2,
Gap between the inner wall and data collecting instrument 2 of fixing shell 5 is filled with vibration damping protection foam 6；Fixing shell 5 is protected with vibration damping
Foam 6 allow data collecting instrument 2 shake by force, under the adverse circumstances such as high temperature long-time stable work；Data collecting instrument 2
The distance between hanging axis 14 of installation site and hammer ram 4 is more than 20cm, to prevent hammer ram 4 from lifting by crane and break off relations to data collecting instrument 2
Cause harmful effect.
As shown in Figure 1, in the present embodiment, logic controller 3 is PLC logic controllers；Logic controller 3 includes centre
Manage device 7, counting module 8, memory 9, display 10, serial expanded circuit 11, WiFi communication module 12 and power supply unit 13.In
Central processor 7 is used for the operation of control PLC logic controller, and docks received data and carry out relevant treatment；Counting module 8 can
Number is hit to record ramming for hammer ram 4；Memory 9 is used to store the data that jerk acceleration transducer 1 collects；Display 10 can
It can also be non-touch screen to think touch screen, be mainly used for display processing result and construction personnel carries out relevant operation；Power supply unit 13
Power supply is provided for logic controller 3, ensures PLC logic controllers normal work；WiFi communication module 12 and data collecting instrument phase
Adaptation, the data sent for receiving data collecting instrument 2.
As shown in Figure 2,3, during the work time, hammer ram 4 is repeatedly lifted and hammer ram 4 breaks off relations release by dynamic compaction machinery, is made
Obtain 4 freely falling body of hammer ram to fall, ground tamping is carried out to the soil body below using the kinetic energy of whereabouts；Fall every time in hammer ram 4
During, jerk acceleration transducer 1 constantly gathers the acceleration information of hammer ram 4.
As shown in Figure 1, 2, the signal collected is sent to data acquisition by jerk acceleration transducer 1 by transmission line
Instrument, data collecting instrument are filtered the voltage signal of jerk acceleration transducer 1 processing and A/D conversions, transformed data
Pass through wireless network transmissions to logic controller 3；Logic controller 3 can calculate hammer ram 4 according to the acceleration information received
Ram energy level, ramming volume and hammer ram gradient.
The advantageous effects of the present embodiment are：(1) acceleration during hammer ram impact ground is gathered by informationization technology,
By the transmission to gathered data, analysis and processing, the real time monitoring of dynamic consolidation construction state is realized, not only saves cost, but also
Improve working effect；(2) using acceleration transducer measurement impact acceleration, data are carried out using PLC logic controllers
Analyzing and processing, it is reliable and stable；(3) acceleration signal for being collected data collecting instrument using wireless transmission method, is transmitted to PLC
In logic controller, the arrangement of transmission data wire is avoided；(4) simple in structure, installation, dismounting are easy, without to original machinery
Equipment is transformed, available for various dynamic compaction machineries, meanwhile, influenced from extraneous construction environment, continuous working period length, stability
It is high.
Claims (7)
1. a kind of dynamic consolidation construction data acquisition and detecting system based on impact acceleration, it is characterised in that the dynamic consolidation construction number
Include jerk acceleration transducer, data collecting instrument and logic controller with detecting system according to collection；The impact acceleration
Sensor and the data collecting instrument are installed on the upper surface of hammer ram；The logic controller is installed on the driver's cabin of dynamic compaction machinery
It is internal；The jerk acceleration transducer is connected with the data collecting instrument；The data collecting instrument and the logic controller
Between pass through wireless network connection.
2. a kind of dynamic consolidation construction data acquisition and detecting system based on impact acceleration according to claim 1, it is special
Sign is that the number of the jerk acceleration transducer is four, upper table of four jerk acceleration transducers in the hammer ram
The rectangular arrangement in face.
3. a kind of dynamic consolidation construction data acquisition and detecting system based on impact acceleration according to claim 1 or 2, its
It is characterized in that the jerk acceleration transducer is fixedly connected by bolt with the hammer ram, the jerk acceleration transducer
The distance between edge of installation site and the hammer ram is more than 10cm.
4. a kind of dynamic consolidation construction data acquisition and detecting system based on impact acceleration according to claim 1, it is special
Sign be the data collecting instrument data acquisition channel be more than four, the data collecting instrument have wireless WiFi module and with
Too network interface.
5. a kind of dynamic consolidation construction data acquisition and detecting system based on impact acceleration according to claim 1, it is special
Sign is that the upper surface of the hammer ram is provided with the fixing shell for accommodating the data collecting instrument, the fixing shell it is interior
Gap between wall and the data collecting instrument is filled with vibration damping protection foam.
6. a kind of dynamic consolidation construction data acquisition and detecting system based on impact acceleration according to claim 1 or 5, its
It is characterized in that the distance between the installation site of the data collecting instrument and the hanging axis of the hammer ram are more than 20cm.
7. a kind of dynamic consolidation construction data acquisition and detecting system based on impact acceleration according to claim 1, it is special
Sign is that the logic controller is PLC logic controllers；The logic controller includes central processing unit, counting module, deposits
Reservoir, display, serial expanded circuit and power supply unit.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201721254191.XU CN207337183U (en) | 2017-09-27 | 2017-09-27 | A kind of dynamic consolidation construction data acquisition and detecting system based on impact acceleration |
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| CN201721254191.XU CN207337183U (en) | 2017-09-27 | 2017-09-27 | A kind of dynamic consolidation construction data acquisition and detecting system based on impact acceleration |
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| CN207337183U true CN207337183U (en) | 2018-05-08 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020103838A1 (en) * | 2018-11-20 | 2020-05-28 | 山东大学 | Method and system for determining foundation bearing capacity during high-speed hydraulic tamping in real time |
-
2017
- 2017-09-27 CN CN201721254191.XU patent/CN207337183U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020103838A1 (en) * | 2018-11-20 | 2020-05-28 | 山东大学 | Method and system for determining foundation bearing capacity during high-speed hydraulic tamping in real time |
| US11384504B2 (en) | 2018-11-20 | 2022-07-12 | Shandong University | Method and system for determining in real time bearing capacity of foundation tamped by high-speed hydraulic tamper |
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