CN110396903A - Powdered road base detection methods of compaction degree - Google Patents
Powdered road base detection methods of compaction degree Download PDFInfo
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- CN110396903A CN110396903A CN201910716204.8A CN201910716204A CN110396903A CN 110396903 A CN110396903 A CN 110396903A CN 201910716204 A CN201910716204 A CN 201910716204A CN 110396903 A CN110396903 A CN 110396903A
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- Prior art keywords
- road base
- vibrated roller
- data processing
- processing equipment
- powdered
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
- E01C19/22—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for consolidating or finishing laid-down unset materials
- E01C19/23—Rollers therefor; Such rollers usable also for compacting soil
- E01C19/28—Vibrated rollers or rollers subjected to impacts, e.g. hammering blows
- E01C19/288—Vibrated rollers or rollers subjected to impacts, e.g. hammering blows adapted for monitoring characteristics of the material being compacted, e.g. indicating resonant frequency, measuring degree of compaction, by measuring values, detectable on the roller; using detected values to control operation of the roller, e.g. automatic adjustment of vibration responsive to such measurements
Abstract
The invention discloses a kind of powdered road base detection methods of compaction degree, this method can calculate in real time powdered road base compactness during vibrated roller rolling operation according to the following formula:
Description
Technical field
The present invention relates to a kind of Subgrade Compaction detection technique more particularly to a kind of powdered road base compactness detection sides
Method.
Background technique
The prior art is generally inspected by random samples using manpower, the detection of code requirement at present when detecting powdered road base compactness
Frequency is that every 1000 ㎡ at least detects 2 points, and the point of this detection mode detection is limited, and testing result cannot reflect road comprehensively
The true compaction state of base entirety may cause the case where leakage is pressed, and on the other hand, existing detection mode has hysteresis quality, cannot
The current compacting situation of real-time display, detection process is time-consuming and laborious, and artifical influence factor is larger, and testing result is easy to fake, this
Outside, detection operation can damage roadbed globality.
Summary of the invention
For the problems in background technique, the invention proposes a kind of powdered road base detection methods of compaction degree, innovations
Be: related hardware includes vibrated roller, acceleration transducer, GPS positioning device and data processing equipment；It is described to add
Velocity sensor is arranged on the vibrating shaft of vibrated roller, and acceleration transducer is connect with data processing equipment；The GPS is fixed
Position device is arranged on vibrated roller, and GPS positioning device is connect with data processing equipment；
The powdered road base detection methods of compaction degree includes:
1) powdered road base is sampled, the ingredient of sample is detected, obtain the fine particle that partial size is less than 0.075mm
Content hx, hx> 50%；
2) when vibrated roller rolling operation, vibrated roller is made to advance with the speed of 0.5m/s；Vibrated roller operation
In the process: acceleration transducer carries out continuous sampling to the acceleration signal of vibrating shaft, and collected acceleration signal is real
When be transmitted to data processing equipment (it will be apparent to those skilled in the art that acceleration transducer output signal also need to filter
The preposition processing such as wave), meanwhile, GPS positioning device obtains the position signal of vibrated roller in real time, and the position letter that will acquire
Number it is transmitted to data processing equipment；
With 1 second for a process cycle, data processing equipment calculates powder corresponding to single process cycle according to the following formula
Matter soil Subgrade Compaction y:
Y=(0.05hx-2.12)x+(-2.97hx+219.85)；
Wherein, x are as follows: the amplitude of vibrated roller each vibration period is obtained according to acceleration signal, to single processing week
Phase administrative multiple amplitudes are averaged (the administrative amplitude quantity of single process cycle, according to the vibration frequency of vibrated roller
It determines, the vibration frequency of vibrated roller is usually tens hertz；The sample frequency of acceleration transducer is much larger than vibration pressure road
The vibration frequency of machine, for convenient for calculating, the sample frequency of acceleration transducer can round numbers, such as 1000Hz, 1500Hz), i.e.,
For x, the unit of x is ms-2；
Multiple process cycles correspond to multiple powdered road base compactness y；
After vibrated roller starts rolling operation, data processing equipment constructs virtual stone roller according to the variation of position signal
Intermediate pressure section figure；After obtaining powdered road base compactness y, data processing equipment is according to time relationship (that is, the single process cycle time
Region interior, that vibrated roller is passed through, region corresponding to the as y in respective handling period；The width in region is according to vibration
The steel wheel width of road roller determines), by powdered road base compactness y label on rolling the corresponding region in administrative division map.
The method have the benefit that: a kind of powdered road base detection methods of compaction degree is proposed, this method can
Under conditions of not destroying roadbed integrality, realize in real time, cover type detection, detection it is comprehensive preferably, by human factor shadow
Sound is smaller, and fraud difficulty is higher.
Specific embodiment
A kind of powdered road base detection methods of compaction degree, innovation are: related hardware includes vibrated roller, adds
Velocity sensor, GPS positioning device and data processing equipment；The vibrating shaft of vibrated roller is arranged in the acceleration transducer
On, acceleration transducer is connect with data processing equipment；The GPS positioning device is arranged on vibrated roller, GPS positioning dress
It sets and is connect with data processing equipment；
The powdered road base detection methods of compaction degree includes:
1) powdered road base is sampled, the ingredient of sample is detected, obtain the fine particle that partial size is less than 0.075mm
Content hx, hx> 50%；
2) when vibrated roller rolling operation, vibrated roller is made to advance with the speed of 0.5m/s；Vibrated roller operation
In the process: acceleration transducer carries out continuous sampling to the acceleration signal of vibrating shaft, and collected acceleration signal is real
When be transmitted to data processing equipment, meanwhile, GPS positioning device obtains the position signal of vibrated roller in real time, and will acquire
Position signal be transmitted to data processing equipment；
With 1 second for a process cycle, data processing equipment calculates powder corresponding to single process cycle according to the following formula
Matter soil Subgrade Compaction y:
Y=(0.05hx-2.12)x+(-2.97hx+219.85)；
Wherein, x are as follows: the amplitude of vibrated roller each vibration period is obtained according to acceleration signal, to single processing week
Phase administrative multiple amplitudes are averaged, and the unit of as x, x are ms-2；
Multiple process cycles correspond to multiple powdered road base compactness y；
After vibrated roller starts rolling operation, data processing equipment constructs virtual stone roller according to the variation of position signal
Intermediate pressure section figure；After obtaining powdered road base compactness y, data processing equipment is according to time relationship, by powdered road base compactness y
Label is on rolling the corresponding region in administrative division map.
The present invention is further explained below by several embodiments；
Embodiment 1:
This example carries out the 1st time without the powdered road base that rolls to one section 3 meters long and rolls, this hair is used in roller compaction process
Bright scheme is detected, and process is as follows:
Powdered road base is sampled, the ingredient of sample is detected (by " highway earthwork test rule " JTG E40-
2007 carry out screen experiments；Note: the means of fine particle content are the prior art in detection subgrade soils, as long as when it is implemented,
Can ensure the accuracy of testing result, those skilled in the art can select suitable detection means according to physical condition), it obtains
The content 63.3% of fine particle to partial size less than 0.075mm, i.e. hx=63.3%；
Vibrated roller uses Xu work XS223J type vibrated roller, and acceleration transducer is added using 1A113E type piezoelectric type
Velocity sensor, the sample frequency of acceleration transducer are set as 1000HZ, and axial sensitivity is set as 509.1mv/g；By this
After scheme of the invention connects hardware, vibrated roller starts grinding operation, the row of vibrated roller with the vibration frequency of 28HZ
Into speed control in 0.5m/s；In vibrated roller operation process, acceleration transducer carries out the acceleration signal of vibrating shaft
Continuous sampling, and by collected acceleration signal real-time Transmission to data processing equipment, meanwhile, GPS positioning device obtains in real time
The position signal of vibrated roller is taken, and the position signal that will acquire is transmitted to data processing equipment；At the end of grinding operation,
Acceleration transducer and GPS positioning device synchronize stop working；After grinding operation, with sand replacement method to the difference for rolling region
Position carries out compactness detection, obtains corresponding compactness data；With 1 second for a process cycle, have in each process cycle
The output data of 1000 acceleration transducers has 28 vibration periods in each process cycle, after handling data
The compactness in 6 regions within the scope of to 3 meters then has following table in conjunction with the compactness data that sand replacement method obtains:
As seen from the above table, testing result of the invention and sand replacement method testing result are very close；
Embodiment 2:
On that basis of example 1 roll for the 2nd time, the movement of vibrated roller and the sampling condition of acceleration transducer
It is same as Example 1, after rolling, compactness detection is carried out to the different location for rolling region with sand replacement method；To data into
After row processing, there is following table:
As can be seen from the above table, testing result of the invention and sand replacement method testing result are very close, and in conjunction with the embodiments 1
Testing result illustrates that the deviation of testing result of the present invention and sand replacement method testing result is smaller, and accuracy of the invention is preferable, has
Stronger practicability.
Example 3:
It is different from example 1,2, one section 3 meters long of region is chosen on the powdered road base that this example has rolled completion one to carry out
Detection, the design compactness of the powdered road base are >=95%；
When detection, the movement of vibrated roller and the sampling condition of acceleration transducer are same as Example 1, roll end
Afterwards, compactness detection is carried out to the different location for rolling region with sand replacement method；After handling data, there is following table:
As seen from the above table, 1.5~2.0 meters, 2.0~2.5 meters, Subgrade Compaction does not conform in 2.5~3.0 meters of range areas
Lattice, it is consistent with sand replacement method test result.
Example 4:
This example is newly chosen one section of 3 meters of long region on powdered road base same as Example 3 and is detected, and will vibration
The vibration frequency of dynamic road roller is adjusted to 33HZ, i.e., has 33 vibration periods in each process cycle；The item of acceleration transducer
Part is the same；After rolling, compactness detection is carried out to the different location for rolling region with sand replacement method；Data are handled
Afterwards, there is following table:
As seen from the above table, 0~0.5 meter, Subgrade Compaction is unqualified in 1.5~2.0 meters of range areas, detected with sand replacement method
Conclusion is consistent；By embodiment 3 and embodiment 4 as it can be seen that the present invention is suitable for the different vibration frequencies of vibrated roller.
Example 5:
It chooses one section of 3 meters of long region on another powdered road base for having rolled completion to be detected, the silty dirt road
The design compactness of base is >=90%；In this example, vibrated roller uses Xia work XG620 type vibrated roller, and vibration frequency is adopted
Condition with 28HZ, acceleration transducer is the same；After rolling, the different location for rolling region is compacted with sand replacement method
Degree detection；After handling data, there is following table:
Upper table shows that testing result of the invention is consistent with sand replacement method test result, illustrates to present invention can be suitably applied to difference
The vibrated roller of model, vibrated roller used in common engineering are used equally for implementing the present invention.
The present invention may be directly applied to powdered road base compacting engineering, can mitigate compactness detection workload, and reduction is applied
Work cost controls convenient for compaction quality, meanwhile, compactness detection data directly is handled to obtain by software, reduces data fabrication
A possibility that, it is significant to guarantee construction quality.
Claims (1)
1. a kind of powdered road base detection methods of compaction degree, it is characterised in that: related hardware includes vibrated roller, accelerates
Spend sensor, GPS positioning device and data processing equipment；The vibrating shaft of vibrated roller is arranged in the acceleration transducer
On, acceleration transducer is connect with data processing equipment；The GPS positioning device is arranged on vibrated roller, GPS positioning dress
It sets and is connect with data processing equipment；
The powdered road base detection methods of compaction degree includes:
1) powdered road base is sampled, the ingredient of sample is detected, obtain containing for fine particle of the partial size less than 0.075mm
Measure hx, hx> 50%；
2) when vibrated roller rolling operation, vibrated roller is made to advance with the speed of 0.5m/s；Vibrated roller operation process
In: acceleration transducer carries out continuous sampling to the acceleration signal of vibrating shaft, and collected acceleration signal is passed in real time
Data processing equipment is transported to, meanwhile, the position that GPS positioning device obtains the position signal of vibrated roller in real time, and will acquire
Confidence number is transmitted to data processing equipment；
With 1 second for a process cycle, data processing equipment calculates slity soil corresponding to single process cycle according to the following formula
Subgrade Compaction y:
Y=(0.05hx-2.12)x+(-2.97hx+219.85)；
Wherein, x are as follows: the amplitude of vibrated roller each vibration period is obtained according to acceleration signal, to single process cycle institute
The multiple amplitudes of linchpin are averaged, as x, and the unit of x is ms-2；
Multiple process cycles correspond to multiple powdered road base compactness y；
After vibrated roller starts rolling operation, data processing equipment is constructed and virtual rolls area according to the variation of position signal
Domain figure；After obtaining powdered road base compactness y, data processing equipment marks powdered road base compactness y according to time relationship
On rolling the corresponding region in administrative division map.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110904795A (en) * | 2019-11-19 | 2020-03-24 | 河南省公路工程局集团有限公司 | Method for detecting compactness of double-layer wide cement stabilized macadam base |
| CN111188245A (en) * | 2020-01-13 | 2020-05-22 | 廊坊市交通公路工程有限公司 | Vibratory roller for real-time continuous detection of asphalt concrete compaction degree |
| CN113668332A (en) * | 2021-07-30 | 2021-11-19 | 中国建筑第八工程局有限公司 | Roadbed compaction quality detection device and method |
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| CN103061323A (en) * | 2013-01-30 | 2013-04-24 | 天津大学 | Real-time monitoring device of earth-rock dam material compaction quality |
| CN103487351A (en) * | 2013-10-18 | 2014-01-01 | 长安大学 | Real-time asphalt road compactness monitoring method |
| CN109596202A (en) * | 2018-12-11 | 2019-04-09 | 南京天辰礼达电子科技有限公司 | A kind of vibration rolling vibration information real time detection algorithm based on acceleration value |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1809853A (en) * | 2003-03-14 | 2006-07-26 | 利瓦斯有限责任公司 | A device for detection of road surface condition |
| CN103061323A (en) * | 2013-01-30 | 2013-04-24 | 天津大学 | Real-time monitoring device of earth-rock dam material compaction quality |
| CN103487351A (en) * | 2013-10-18 | 2014-01-01 | 长安大学 | Real-time asphalt road compactness monitoring method |
| CN109596202A (en) * | 2018-12-11 | 2019-04-09 | 南京天辰礼达电子科技有限公司 | A kind of vibration rolling vibration information real time detection algorithm based on acceleration value |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110904795A (en) * | 2019-11-19 | 2020-03-24 | 河南省公路工程局集团有限公司 | Method for detecting compactness of double-layer wide cement stabilized macadam base |
| CN111188245A (en) * | 2020-01-13 | 2020-05-22 | 廊坊市交通公路工程有限公司 | Vibratory roller for real-time continuous detection of asphalt concrete compaction degree |
| CN113668332A (en) * | 2021-07-30 | 2021-11-19 | 中国建筑第八工程局有限公司 | Roadbed compaction quality detection device and method |
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