CN104515791B - Concrete aid pumpability monitoring method - Google Patents
Concrete aid pumpability monitoring method Download PDFInfo
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- CN104515791B CN104515791B CN201410798604.5A CN201410798604A CN104515791B CN 104515791 B CN104515791 B CN 104515791B CN 201410798604 A CN201410798604 A CN 201410798604A CN 104515791 B CN104515791 B CN 104515791B
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Abstract
The invention discloses a kind of concrete aid pumpability monitoring method and device, concrete aid pumpability monitoring device, including sensor, signal pickup assembly, communication controller, signal collector, several sensors are equidistantly laid in concrete delivery pump pipe outer wall, each sensor is connected by wire with the input of signal pickup assembly respectively, the output end of signal pickup assembly is connected with the input of communication controller, and signal collector is connected with the output end of communication controller；Sensor is used to monitor the deformation of its installation place on concrete delivery pump pipe outer wall, signal pickup assembly is used to gather the deformation electric signal that each sensor is measured, communication controller is used to receive the deformation electric signal of signal pickup assembly, and signal collector is used to that deformation electric signal to be converted into deformation viewdata and treatment is recorded.The present invention is for high-rise, remote concrete pumping, and easy to operate, test is quick accurate.
Description
Technical field
The invention belongs to concrete pumping field, more particularly to a kind of concrete aid pumpability monitoring method and device.
Background technology
With expanding economy, skyscraper or even high-rise building are surging forward in big city, premixed pumping concrete
Technology has obtained extensive development and popularization, and good effect is achieved in building structure concrete construction.It is premixed and pumped mixed
Solidifying soil technology with its efficiency high, expense is low, save labour, horizontal and vertical transport can continuously poured in one complete, using narrow
The advantages of job site, increasingly it is valued by people.
Although pump concrete has many advantages, such as, with the increase of pumping distance or pumping height, pump concrete
The raising of strength grade, there is plugging in engineering site or the accident of booster happens occasionally.Once generation plugging or booster situation, gently
Then influence concreting efficiency, it is heavy then influence the engineering construction duration, if pump concrete strength grade is high, pumping distance far or
Pumping height is high, when there is booster situation under high pump pressure, or even security incident can occur, therefore, to the pump of pump concrete
Sending situation needs to pay much attention to.
At present, concrete aid pumpability is implemented by two ways：1st, it is by observing or testing before concrete pumping
The workabilities such as the slump, the divergence of concrete qualitatively judge whether concrete state is good, and the shortcoming of the method is to be similar to this
Kind method of testing is only capable of qualitative judgement concrete and enters pump state, and can not judge whether pumping of the concrete in pump line be good
It is good；In addition, the class testing is only the test under normality, and pumping procedure is the concrete conveyance mistake in the presence of pumping pressure
Journey；Therefore, sustainability of the concrete in pumping procedure cannot be determined by testing the workability of concrete.2nd, in concrete
It is to be supervised by observing the parameters such as pressure gauge and discharge capacity that concrete pump carries in pumping procedure, the shortcoming of this method is：The
One, the change of pumping pressure is observed during concrete pumping needs abundant operating experience, and strong due to pump concrete
The differences such as degree grade, raw material, match ratio, judge that pumping sustainability difficulty is big, by ginsengs such as observation pumping pressure and discharge capacities
Number change, judges that the result of pumping sustainability relatively lags behind, it is impossible to judge the possibility of plugging or booster occur in advance；The
Two, when occurring plugging phenomenon during concrete pumping, plugging cannot be sentenced by parameters such as observation pump machine pressure gauge or discharge capacities
The position of generation, it is necessary to construction worker along pump line section by section beat inspection, when beaing inspection and being difficult to find plugging position, very
To needing workman to tear pipe inspection open in pump line multiple positions, so not only consume one's strength, the time but also there is potential safety hazard.In a word, rely on
Current method judges concrete aid pumpability, and judged result is delayed, meanwhile, consume more artificial, influence efficiencies of construction, there is peace
Full hidden danger.
Theoretically, in pumping procedure, because its own bears pump function, the pump pressure born is in pump line for concrete
Under constraint, pump line can be caused to deform, when the pump pressure increase that concrete bears, then pump line deformation can accordingly increase.Therefore, it can lead to
The deformation of monitoring pump line is crossed, quantitative response concrete pumps sustainability under pump function.Both be can be determined that by quantitative calculating
The plugging position that concrete occurs, the risk of plugging can occurs, it is determined whether possess continuation according to anticipation concrete is calculated again
The ability of pumping.
Chinese patent CN201220094565 provides a kind of concrete pump pipe pressure monitoring and alarm device, and it includes two shapes
Become sensor, signal processing apparatus and warning device.Two changing sensors are separately positioned on along the diametric(al) of pump line
The both sides of pump line, the deformation quantity for detecting pump line external diameter.The signal processing apparatus are used to receive two changing sensors
Output signal, and the upper and lower bound value of pump line inner concrete operating pressure is preset, then will be sensed according to the deformation
The output signal of device calculates the operating pressure for determining and is compared with default upper and lower bound value, if the operating pressure is less than
Lower limit or higher than higher limit, then the signal processing apparatus start the warning device to the warning device output signal.The device
Concrete can accurately be tested out in pumping procedure, the operating pressure of pump line optional position, and plugging, booster can be carried out accurately
Forecast and positioning, are that Concrete Pumping Construction brings great technological progress and economic benefit.The deficiency of the patent is：1st, limit
The quantity of sensor has been determined for two, and when distance is pumped or height is big, the Monitoring Data of only two sensors is difficult to table
Actual conditions that are bright or representing a whole set of pump line；2nd, the upper and lower bound value difficulty of pump line inner concrete operating pressure is preset
It is very big, because the operating pressure of pump line inner concrete changes with pumping height, and there is no a kind of method can accurately to count at present
The operating pressure of pump line inner concrete, therefore the upper and lower bound value of setting operating pressure are calculated so as to the poor operability of early warning；3、
It is big according to changing sensor signal of change actual working pressure difficulty, because the deformation quantity monitored during concrete pumping includes
Shape of the concrete to pump line vibrations in deformation quantity, deformation quantity, the pumping procedure of pump line itself temperature influence of pump line pressure
Variable, accordingly, it is difficult to the operating pressure that concrete is acted on pump line is effectively calculated, so as to be difficult to accurately compare actual working pressure
With the upper and lower bound value of setting operating pressure.
The content of the invention
The present invention is for the inaccurate problem of complex operation, data in existing concrete aid pumpability monitoring technology, there is provided
A kind of concrete aid pumpability monitoring method and device, for high-rise, remote concrete pumping, easy to operate, test is quick
Accurately.
The technical solution adopted for the present invention to solve the technical problems is：A kind of concrete aid pumpability monitoring method, should
Method is comprised the following steps, and the sensor of several monitoring deformation, sensor are equidistantly laid in concrete delivery pump pipe outer wall
Deformation electric signal for obtaining the concrete delivery pump pipe outer wall at the sensor setting；Gather the deformation telecommunications of each sensor
Number and be compiled as deformation viewdata, i-th sensor of record is in the corresponding deformation viewdata of tWhen obtaining monitoring
Between the corresponding minimum deformation viewdata of i-th sensor in △ tThe concrete calculated at i-th sensor place can
Pumping index B：
The pumpable index B of concrete at according to where i-th sensor, judges concrete delivery pump pipe outer wall at this
Whether the pumpable index B of concrete meets default aid pumpability standard, if meeting default aid pumpability standard, can enter
Row pumping.
By above-mentioned technical proposal, the default aid pumpability standard is 0.5≤B≤1.5.
By above-mentioned technical proposal, the sensor is strain transducer or strain gauge.
By above-mentioned technical proposal, the strain transducer is specially foil gauge, and strain gauge is specially stressometer.
The present invention also provides a kind of concrete aid pumpability monitoring device, including sensor, signal pickup assembly, communication control
Device processed, signal collector, several sensors are equidistantly laid in concrete delivery pump pipe outer wall, and each sensor passes through respectively
Wire is connected with the input of signal pickup assembly, and the output end of signal pickup assembly is connected with the input of communication controller,
Signal collector is connected with the output end of communication controller；Sensor is used to monitor its installation on concrete delivery pump pipe outer wall
The deformation at place, signal pickup assembly is used to gather the deformation electric signal that each sensor is measured, and communication controller is used to receive signal
The deformation electric signal of harvester, signal collector is used to be converted to deformation electric signal at deformation viewdata and record
Reason.
By above-mentioned technical proposal, the sensor is strain transducer or strain gauge.
By above-mentioned technical proposal, the strain transducer is specially foil gauge, and strain gauge is specially stressometer.
It is described that each bar wire that each sensor is connected to signal pickup assembly is had into identical material by above-mentioned technical proposal
Matter, same size, equal length.
By above-mentioned technical proposal, the lead material is copper.
By above-mentioned technical proposal, the communication controller passes through wired or wirelessly connects with signal pickup assembly
Connect, the signal pickup assembly is single channel or multichannel.
The beneficial effect comprise that：(1) test quick：Concrete aid pumpability monitoring device is easy to connect, can
During realizing concrete pumping, the real-time monitoring of concrete delivery pump pipe outer wall aid pumpability；
(2) it is easy to operate：Test device installation operation process is simple, and tester can grasp after simple training；
(3) data quantitative：During pump concrete, the big I quantitative test of concrete delivery pump pipe outer wall deformation goes out
Accordingly result；
(4) data can be contrasted effectively：By the largest deformation value of same monitoring point and minimum deformation values ratio interior during monitoring
Compared with, can effectively judge concrete aid pumpability quality, judge plugging risk and plugging position；
(5) it is easy to spread：Monitoring device of the present invention is customizable or buys, easy to carry；
(6) it is particularly well-suited to all kinds of concrete aid pumpabilities prison of high level, high-rise building, long range, extra long distance
Survey.
Brief description of the drawings
Below in conjunction with drawings and Examples, the invention will be further described, in accompanying drawing：
Fig. 1 is the structural representation that embodiment of the present invention concrete aid pumpability monitoring device is arranged on vertical pump line；
Fig. 2 is communication controller, the connection of signal collector in embodiment of the present invention concrete aid pumpability monitoring device
Schematic diagram；
Fig. 3 is the structural representation that embodiment of the present invention concrete aid pumpability monitoring device is arranged on curved pump line；
Fig. 4 is the concrete delivery pump pipe outer wall Deformation Monitoring Data table in the monitoring time in the embodiment of the present invention one；
Fig. 5 is the concrete delivery pump pipe outer wall Deformation Monitoring Data table in the monitoring time in the embodiment of the present invention two；
Fig. 6 is the concrete delivery pump pipe outer wall Deformation Monitoring Data table in the monitoring time in the embodiment of the present invention three；
Fig. 7 is the concrete delivery pump pipe outer wall Deformation Monitoring Data table in the monitoring time in the embodiment of the present invention four.
Specific embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, it is right below in conjunction with drawings and Examples
The present invention is further elaborated.It should be appreciated that specific embodiment described herein is only used to explain the present invention, not
For limiting the present invention.
A kind of concrete aid pumpability monitoring method, the method is comprised the following steps, in concrete delivery pump pipe outer wall etc.
Spacing lays the sensor of several monitoring deformation, and sensor is used to obtain outside the concrete delivery pump pipe at the sensor setting
The deformation electric signal of wall；Gather the deformation electric signal of each sensor and be compiled as deformation viewdata, i-th sensor of record exists
The corresponding deformation viewdata of tObtain the corresponding minimum deformation viewdata of i-th sensor in monitoring time △ tCalculate the pumpable index B of concrete at i-th sensor place：
The pumpable index B of concrete at according to where i-th sensor, judges concrete delivery pump pipe outer wall at this
Whether the pumpable index B of concrete meets default aid pumpability standard.
Wherein, the default aid pumpability standard is 0.5≤B≤1.5.
Further, the sensor is strain transducer or strain gauge.
Wherein, the strain transducer is specifically as follows foil gauge, and strain gauge is specially stressometer.
The present invention also provides a kind of concrete aid pumpability monitoring device, and as shown in Figure 1, Figure 2, Figure 3 shows, the device includes passing
Sensor 1, signal pickup assembly 2, communication controller 4, signal collector 5, several sensors are equidistantly laid in concrete
Delivery pump pipe outer wall, each sensor is connected by wire 3 with the input of signal pickup assembly respectively, signal pickup assembly it is defeated
Go out end to be connected with the input of communication controller, signal collector is connected with the output end of communication controller；Sensor is used for
The deformation of its installation place on monitoring concrete delivery pump pipe outer wall, signal pickup assembly is used to gather the deformation that each sensor is measured
Electric signal, communication controller is used to receive the deformation electric signal of signal pickup assembly, and signal collector is used for deformation telecommunications
Number be converted to deformation viewdata and record treatment.For ease of quick observation concrete aid pumpability directly perceived, signal collector
Deformation electric signal is converted to the tables of data or function curve of deformation viewdata.
Operation principle of the invention is：The sensor of Deformation Monitoring according to a determining deviation is laid in pump line outer wall and is pasted
Firmly, sensor, signal pickup assembly, communication controller, the connection of signal collector are started into monitoring of software, in real time successively
Read pump line deformation data, deformation of the i-th measuring point of record in tPump line deformation minimum value in record monitoring time △ tConcrete aid pumpability is calculated and characterized according to equation below：
When concrete aid pumpability is good, to monitorings of a certain prison monitoring point i in time t, the basic dimension of pump line deformation
Hold constant, then B values are calculated close to 1, when concrete aid pumpability is bad, or even when having plugging risk, to a certain monitoring point i at this
When situation occurs, concrete is significantly increased to pump line active force, and pump line deformation is significantly increased, and now, is calculated B values and is more than 1.Pass through
B values can be with intuitive judgment concrete aid pumpability.
Wherein, sensor is strain transducer or strain gauge.Further, the strain transducer is specifically as follows
Foil gauge, strain gauge is specially stressometer.
Further, it is described that each bar wire that each sensor is connected to signal pickup assembly is had into phase same material, identical
Specification, equal length, to ensure the accuracy of Monitoring Data.Lead material is specifically as follows copper.Wire can be diameter
2mm, equal length, the consistent copper conductor of model.
Further, communication controller passes through wired or is wirelessly connected, the signal with signal pickup assembly
Harvester is single channel or multichannel.For convenience of connecting, signal pickup assembly can use multi-channel module, for ease of data
Communication transfer, communication controller can be wireless transmission method.
Signal collector judges that concrete is pumpable by way of showing that pump line deforms time-history curves or tables of data
Property.Sensor judges concrete aid pumpability using foil gauge or stressometer monitoring pump line deformation.
Embodiment one：Strain-ga(u)ge transducer is laid in vertical pump line, circumferentially disposed along pump line, between strain-ga(u)ge transducer is laid
Away from being 50m, before pump line wall is fixed in strain-ga(u)ge transducer stickup, the pump line wall for intending pasting position is polished smooth first, it
Fixed strain-ga(u)ge transducer is pasted by 502 glue afterwards, and uses silica gel sealing strain-ga(u)ge transducer, strain-ga(u)ge transducer is along pump line
Direction after starting monitoring device and signal compiler, records the pump line deformation of each monitoring point according to number consecutively from bottom to up,
Concrete aid pumpability monitoring is carried out by the form of tables of data.It is illustrated in figure 4 the pump line deformation monitoring number in time △ t
According to table.Wherein ellipsis " ... " represents the monitoring point and the pump line strain in the monitoring time omitted.By calculating each monitoring point B
Value can be obtained, and B values are close to 1, and concrete aid pumpability is good；The present embodiment is the pumping height of 150m, strength grade of concrete
It is C40, actual pumping procedure is smooth；Result of calculation is coincide with actual conditions.
Embodiment two：Strain-ga(u)ge transducer is laid on the bend pipe that 120m highly locates, circumferentially disposed before and after bend pipe corner,
Foil gauge numbering before corner is 1, and the foil gauge numbering after corner is 2, and strain-ga(u)ge transducer is pasted before being fixed on pump line wall,
The pump line wall for intending pasting position is polished smooth first, pastes fixed strain-ga(u)ge transducer by 502 glue afterwards, and use silica gel
Sealing strain-ga(u)ge transducer, after starting pump line deformation monitoring equipment and signal compiler, the pump line for recording each prison monitoring point becomes
Shape, by the form concrete aid pumpability monitoring method of tables of data.It is illustrated in figure 5 the Tube Bending Deformation prison in time △ t
Survey tables of data.Ellipsis " ... " represents the monitoring point and the pump line strain in the monitoring time omitted.By calculating each monitoring point B
Value can be obtained, and B values are close to 1, and concrete aid pumpability is good.The pipe bent position of the present embodiment is 120m pumping heights, strong concrete
Degree grade is C40, and actual pumping procedure is smooth；Result of calculation is coincide with actual conditions.
Embodiment three：Strain-ga(u)ge transducer is laid in vertical pump line, circumferentially disposed along pump line, between strain-ga(u)ge transducer is laid
Away from being 50m, before pump line wall is fixed in strain-ga(u)ge transducer stickup, the pump line wall for intending pasting position is polished smooth first, it
Fixed strain-ga(u)ge transducer is pasted by 502 glue afterwards, and uses silica gel sealing strain-ga(u)ge transducer, strain-ga(u)ge transducer is along pump line
Direction after starting pump line deformation monitoring equipment and signal compiler, records each prison monitoring point according to number consecutively from bottom to up
Pump line deformation, by the form concrete aid pumpability monitoring method of tables of data.It is illustrated in figure 6 the pump in time △ t
Pipe deformation measurement data table.Ellipsis " ... " represents the monitoring point and the pump line strain in the monitoring time omitted.By calculating
Each monitoring point B values can be obtained, 1# monitoring points B value 4.35,2# monitoring points B value 4.28,3# monitoring points B value 1.01, in 1#, 2# monitoring point
Place's B values are significantly increased, and concrete aid pumpability is bad, and plugging or booster thing can occur in pump line section between 1#, 2# monitoring point
Therefore；The present embodiment is the pumping height of 150m, and strength grade of concrete is C40, and the pumping procedure incipient stage is smooth, the interstage
Pumping efficiency is relatively low, deuterogenesis's plugging, and plugging occurs position between 1# measuring points and 2# measuring points, at 1# measuring points；Calculate
Result is coincide with actual conditions, and plugging occurs position judgment and coincide with actual conditions.
Example IV：Strain-ga(u)ge transducer is laid on the bend pipe that 120m highly locates, circumferentially disposed before and after bend pipe corner,
Foil gauge numbering before corner is 1, and the foil gauge numbering after corner is 2, and strain-ga(u)ge transducer is pasted before being fixed on pump line wall,
The pump line wall for intending pasting position is polished smooth first, pastes fixed strain-ga(u)ge transducer by 502 glue afterwards, and use silica gel
Sealing strain-ga(u)ge transducer, after starting pump line deformation monitoring equipment and signal compiler, the pump line for recording each prison monitoring point becomes
Shape, by the form concrete aid pumpability monitoring method of tables of data.It is illustrated in figure 7 the Tube Bending Deformation monitoring in time t
Tables of data.Ellipsis " ... " represents the monitoring point and the pump line strain in the monitoring time omitted.By calculating each monitoring point B values
Can obtain, 1# monitoring points B value 4.84,2# monitoring points B value 1.07, B values are significantly increased at 1# monitoring points, and concrete aid pumpability is not
It is good, plugging or pipe explosion accident can occur in bend pipe corner；The pipe bent position of the present embodiment is 120m pumping heights, and pumping procedure is opened
Stage beginning, smoothly interstage pumping efficiency was relatively low, and deuterogenesis's plugging, plugging is located proximate to 1# measuring points, turned in bend pipe
At angle；Result of calculation is coincide with actual conditions, and plugging occurs position judgment and coincide with actual conditions.
From above-described embodiment, quick, convenient can judge whether concrete aid pumpability is excellent using the inventive method,
Can quickly, accurately judge that the risk of plugging, and the position that plugging occurs during pipeline jam accident generation occurs in concrete.The present invention for
Pump concrete is especially high-rise, remote concrete pumping, tests quick, easy to operate, and data quantitative, data can have
Effect contrast, it is easy to spread.
It should be appreciated that for those of ordinary skills, can according to the above description be improved or converted,
And all these modifications and variations should all belong to the protection domain of appended claims of the present invention.
Claims (4)
1. a kind of concrete aid pumpability monitoring method, it is characterised in that the method is comprised the following steps, in concrete pump
Pipe outer wall equidistantly lays the sensor of several monitoring deformation, and the concrete that sensor is used to obtain at the sensor setting is defeated
Send the deformation electric signal of pump line outer wall；Gather the deformation electric signal of each sensor and be compiled as deformation viewdata, record i-th
Sensor is in the corresponding deformation viewdata of tObtain the corresponding minimum deformation of i-th sensor in monitoring time △ t
ViewdataCalculate the pumpable index B of concrete at i-th sensor place：
The pumpable index B of concrete at according to where i-th sensor, judges the coagulation of concrete delivery pump pipe outer wall at this
Whether the pumpable index B of soil meets default aid pumpability standard.
2. concrete aid pumpability monitoring method according to claim 1, it is characterised in that the default aid pumpability
Standard is 0.5≤B≤1.5.
3. concrete aid pumpability monitoring method according to claim 1 and 2, it is characterised in that the sensor is for should
Become sensor or strain gauge.
4. concrete aid pumpability monitoring method according to claim 3, it is characterised in that the strain sensing implement body
It is foil gauge, strain gauge is specially stressometer.
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Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106017401B (en) * | 2016-06-13 | 2018-11-09 | 上海建工集团股份有限公司 | The monitoring device of ultra-high pump concrete conveying blockage and monitoring and evaluation method |
| CN106404274A (en) * | 2016-09-27 | 2017-02-15 | 中建三局集团有限公司 | Wireless monitoring technology based early warning system and method for high-rise floor construction pump pipe clogging |
| CN107505234A (en) * | 2017-07-10 | 2017-12-22 | 中国建材检验认证集团贵州有限公司 | A kind of concrete pumping system safety testing device and method of testing |
| CN109373189B (en) * | 2018-10-24 | 2024-04-30 | 中国建筑股份有限公司 | Device and method for measuring blocking position of concrete pump pipe |
| CN110222472B (en) * | 2019-06-28 | 2023-05-02 | 北京工业大学 | Method for judging risk of pipe blockage in concrete pumping process |
| CN111076858A (en) * | 2019-11-29 | 2020-04-28 | 上海建工集团股份有限公司 | Nondestructive measurement method for concrete conveying pressure in conveying pipe |
| CN111059997B (en) * | 2019-12-30 | 2021-11-12 | 中铁十二局集团有限公司 | High pier pumping concrete pump pipe detection system and detection method |
| CN113720909A (en) * | 2021-08-19 | 2021-11-30 | 中国建筑第八工程局有限公司 | Sliding lifting type automatic detection robot for concrete engineering and detection method thereof |
| CN114062177B (en) * | 2021-11-26 | 2023-12-05 | 黄河水利委员会黄河水利科学研究院 | Hydraulic building runner concrete erosion loss monitoring method |
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