EP1103658B1 - Device and method for controlling the compaction effect of vibrating devices - Google Patents
Device and method for controlling the compaction effect of vibrating devices Download PDFInfo
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- EP1103658B1 EP1103658B1 EP00120515A EP00120515A EP1103658B1 EP 1103658 B1 EP1103658 B1 EP 1103658B1 EP 00120515 A EP00120515 A EP 00120515A EP 00120515 A EP00120515 A EP 00120515A EP 1103658 B1 EP1103658 B1 EP 1103658B1
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- Prior art keywords
- compaction
- measurement results
- compaction control
- vibratory rollers
- control devices
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- 238000005056 compaction Methods 0.000 title claims abstract description 48
- 238000000034 method Methods 0.000 title claims description 15
- 238000011156 evaluation Methods 0.000 claims abstract description 19
- 238000005259 measurement Methods 0.000 claims description 26
- 239000010426 asphalt Substances 0.000 claims description 21
- 238000010276 construction Methods 0.000 claims description 7
- 230000008878 coupling Effects 0.000 claims description 6
- 238000010168 coupling process Methods 0.000 claims description 6
- 238000005859 coupling reaction Methods 0.000 claims description 6
- 238000005096 rolling process Methods 0.000 claims description 3
- 230000003287 optical effect Effects 0.000 claims 1
- 230000001934 delay Effects 0.000 abstract 1
- 238000007906 compression Methods 0.000 description 31
- 230000006835 compression Effects 0.000 description 29
- 239000010410 layer Substances 0.000 description 17
- 239000002689 soil Substances 0.000 description 7
- 230000001419 dependent effect Effects 0.000 description 5
- 230000007704 transition Effects 0.000 description 5
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- 230000001133 acceleration Effects 0.000 description 3
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- 230000008901 benefit Effects 0.000 description 2
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- 238000012935 Averaging Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000009529 body temperature measurement Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- JHJNPOSPVGRIAN-SFHVURJKSA-N n-[3-[(1s)-1-[[6-(3,4-dimethoxyphenyl)pyrazin-2-yl]amino]ethyl]phenyl]-5-methylpyridine-3-carboxamide Chemical compound C1=C(OC)C(OC)=CC=C1C1=CN=CC(N[C@@H](C)C=2C=C(NC(=O)C=3C=C(C)C=NC=3)C=CC=2)=N1 JHJNPOSPVGRIAN-SFHVURJKSA-N 0.000 description 1
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Images
Classifications
-
- 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
Definitions
- the invention relates to a device for compaction control, in particular of blackcaps in road and road construction with two vibratory rollers, two compression control devices and an evaluation, which juxtaposes the measurement results of the two compression control devices, wherein the two vibrating rollers are coupled substantially tracking each other.
- the invention further relates to a method for compaction control according to the preamble of claim 7.
- Such compression control devices may be, for example, fixed to the roll frame pulse transducers, which function together with a random acceleration measurement method.
- the impact forces that occur when the vibrating bandage of a vibrating roller processes the surface to be compacted can also be registered by such an acceleration sensor on the roller frame.
- the US 4870601 discloses, for example, a rolling device having a vibration wad connected to a drive unit via a joint with two compression control devices arranged on the bearing housing of the roller.
- the evaluation of the values for the roller acceleration and the roller speed determined with the two compaction control devices takes place by means of an evaluation unit, which processes the measurement results of the two compaction control devices to a value which is stored for later averaging calculation.
- the stiffness and thus the tightness of the asphalt layer can not be determined accurately, since the rigidity of the asphalt layer is highly dependent on temperature.
- An accurate temperature measurement of the asphalt layer is not possible.
- the easily determinable surface temperature of the asphalt layer can not be taken as a measure of the temperature of the entire layer, among other things, since the temperature of the surface layer is too much dependent on environmental influences such as prevailing wind or rain, but which does not affect the temperature in the Have inside of the asphalt layer.
- the path hitherto taken in ground compaction is blocked, which stores values determined on a first pass with a vibratory roller having a compaction control device and compares them with the values determined during a second pass, in order to deduce the differences on the compaction.
- the temperature changes in the asphalt layer occurring between two transitions with a machine have an incompatible influence.
- the object of the present invention is to provide a device and a method for compaction control, which does not have the above-mentioned disadvantages and allows a detection location identical comparison of the measurement results.
- vibration rollers are each provided with one of the compression control devices
- evaluation unit includes a delay element with which the measurement results of the first compression control device are intermediate store, identical to the location of the comparison with the measurement results of second compression control device.
- the object is achieved in that the vibration rollers are each provided with one of the compression control devices, wherein a delay element, the measurement results of a Verdichturgskontrollvorides in response to one of the driving speed and the distance between the two coupled vibrating rollers specific holding time cached and the detection location identical Contrary with the measurement results of the other compression control device verzögest passes.
- the invention has the advantage that, as a result of the second vibrating roller coupled to the first vibrating roller, the second transition can be reached immediately in time so that the period between the two transitions can be neglected with regard to a temperature change in the asphalt layer. Furthermore, influences can also be compensated by the existing evaluation unit, which compares the measurement results of the two associated in the first and the second vibratory roller compression control devices, if due to the existing depth of measurement, the stiffness of lying below the asphalt layers subsurface proportionally mitge messenger. This influence of the background stiffness can be eliminated by subtraction of the measurement results in the comparison.
- the invention is also based on the finding that the change in asphalt stiffness is a fairly good reference value for the increase in the compaction progress of the asphalt.
- the evaluation unit also contains a delay element, with which the measurement results of the first compression control device are to be buffered for the detection location identical comparison with the measurement results of the second compression control device.
- the holding time of the delay element is dependent on the driving speed and the distance between the two vibratory rollers coupled to each other.
- the lifelike coupling of the vibratory rollers can be achieved in a tandem roller.
- GPS Global Positioning Systems
- the two mutually tracked compactors can also be coupled to each other via radar, ultrasound, infrared, etc.
- a rigid coupling via a rod is possible.
- the two provided compression control devices can be calibrated in order to be able to compensate for differences in the measured value recording.
- FIG. 1 recognizes a compactor in the form of a known tandem roller with two vibrating rollers, which has the external appearance of the conventional structure.
- the compacting apparatus has a front roller 1 which is fixed to the front structure 2a, on which the tandem roller cab is also located, and a rear roller 3, which is part of the rear body 2b, which also contains the drive motor of the compactor.
- the two structures 2 a and 2 b are connected to each other via a pendulum joint 4.
- FIG. 2 a sketch is shown in which it can be seen that the front roller 1 is provided with a first compression control device 5, as well as the second vibration roller 3 is provided with a second compression control device 6.
- These compaction control devices 5 and 6 operate in the manner known from soil compaction by determining the dynamic soil stiffness. In the example shown here, they determine the overall dynamic stiffness of both the asphalt layer 7 compacted by them and the proportions of the stiffnesses of the already compacted subsurface 8.
- the dynamic overall stiffnesses determined by the two compression control devices 5 and 6 are forwarded as measurement results to an evaluation unit 9, which compares the measurement results obtained from the front and the rear compression control device. This is done by comparing the measured stiffness at the front or rear roller determines the increase in stiffness resulting from the crossings of the rollers. If the increase is small, the compaction of the asphalt layer 7 can be assumed to be completed.
- This display device 10 may be, for example, a pointer instrument indicating the compression difference, but also a light-emitting diode display which signals a sufficient or not yet sufficient compression in the manner of a traffic light.
- calibration elements 11 are provided with which, for example, different roll weights can be compensated.
- a delay element 12 is integrated in the evaluation unit 9. Whose holding time for the delayed transfer of the front roller 1 detected measured value is dependent on the distance between the front Roller 1 and the rear roller 3 and the speed corresponding to the arrow 13 in the FIGS. 1 and 2 ,
- roller 3 follows in the example shown here, the roller 1 due to the mechanical coupling in the structure 2 and the pendulum joint 4 substantially true to the grain, so that it is at the values determined by the two rollers 1 and 3 values respectively identical locations.
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Road Paving Machines (AREA)
- Auxiliary Devices For And Details Of Packaging Control (AREA)
Abstract
Description
Die Erfindung betrifft eine Vorrichtung zur Verdichtungskontrolle insbesondere von Schwarzdecken im Straßen- und Wegebau mit zwei Vibrationswalzen, zwei Verdichtungskontrollvorrichtungen und einer Auswerteeinheit, die die Messergebnisse der zwei Verdichtungskontrollvorrichtungen gegenüberstellt, wobei die zwei Vibrationswalzen miteinander im wesentlichen Spurgetreu verfolgend gekoppelt sind.The invention relates to a device for compaction control, in particular of blackcaps in road and road construction with two vibratory rollers, two compression control devices and an evaluation, which juxtaposes the measurement results of the two compression control devices, wherein the two vibrating rollers are coupled substantially tracking each other.
Die Erfindung betrifft ferner ein Verfahren zur Verdichtungskontrolle gemäß des Oberbegriffs des Anspruchs 7.The invention further relates to a method for compaction control according to the preamble of
Es ist altbekannt, daß bei der Bearbeitung von Boden mit Verdichtungsgeräten durch die Anwendung von ständigen Verdichtungskontrollen eine wirtschaftlichere Bauausführung möglich ist. Üblicherweise basieren solche Verdichtungskontrollvorrichtungen darauf, daß während der Vibrationsverdichtung des Bodens die Reflektion der Schwingungen gemessen werden, die vom Verdichtungsgerät übertragen werden: Von einem sehr lockeren Material wird kaum Vibrationsenergie zurückreflektiert, bereits stark verdichteter Boden oder im Extremfall eine massive Betonplatte, gibt dagegen praktisch die volle Schwingungsenergie an eine Vibrationswalze zurück.It is well known that in the processing of soil with compaction equipment through the use of continuous compaction controls a more economical construction is possible. Usually, such compression control devices are based on measuring the reflection of the vibrations transmitted by the compactor during vibration compaction of the soil: hardly any vibrational energy is reflected back from a very loose material, already highly compacted soil or in extreme cases a massive concrete slab full vibration energy back to a vibratory roller.
Derartige Verdichtungskontrollvorrichtungen können beispielsweise am Walzenrahmen befestigte Impuls-Wandler sein, die zusammen mit einem Beschleunigungs-Meßverfahren mit statistischer Ausführung fungieren.Such compression control devices may be, for example, fixed to the roll frame pulse transducers, which function together with a random acceleration measurement method.
Es können von einem derartigen Beschleunigungsgeber am Walzenrahmen aber auch die Schlagkräfte registriert werden, die auftreten, wenn die vibrierende Bandage einer Vibrationswalze die zu verdichtende Oberfläche bearbeitet.However, the impact forces that occur when the vibrating bandage of a vibrating roller processes the surface to be compacted can also be registered by such an acceleration sensor on the roller frame.
Wenn sich bei derartigen Verdichtungskontrollvorrichtungen trotz zunehmender Anzahl von Verdichtungsübergängen die Verdichtung nicht mehr ändert, ist die mit diesem bestimmten Verdichtungsgerät erzielbare höchste Dichte erreicht. Diese Dichte ist bereits überschritten, wenn der ermittelte Wert wieder absinkt, da eine Auflockerung eintritt.If in such compression control devices, despite increasing number of compression transitions, the compression no longer changes, the achievable with this particular compactor highest density is reached. This density has already been exceeded when the determined value decreases again, since a loosening occurs.
Die
Derartige Verdichtungskontrollvorrichtungen stoßen aber an ihre Grenzen, wenn es um die Verdichtung von Schwarzdecken geht:However, such compaction control devices reach their limits when it comes to the compaction of blackcaps:
Bei der Ermittlung der dynamischen Bodensteifigkeit mit den oben beschriebenen bekannten Methoden auf Asphaltschichten kann die Steifigkeit und damit die Dichtigkeit der Asphaltschicht nicht genau ermittelt werden, da die Steifigkeit der Asphaltschicht in hohem Maße temperaturabhängig ist. Eine genaue Temperaturmessung der Asphaltschicht ist nicht möglich. Insbesondere kann die leicht zu ermittelnde Oberflächentemperatur der Asphaltschicht nicht als Maß genommen werden für die Temperatur der gesamten Schicht, unter anderem auch, da die Temperatur der Oberflächenschicht zu stark von Umgebungseinflüssen wie herrschendem Wind oder Regen abhängig ist, die aber keinen Einfluß auf die Temperatur im Inneren der Asphaltschicht haben.When determining the dynamic soil stiffness with the above-described known methods on asphalt layers, the stiffness and thus the tightness of the asphalt layer can not be determined accurately, since the rigidity of the asphalt layer is highly dependent on temperature. An accurate temperature measurement of the asphalt layer is not possible. In particular, the easily determinable surface temperature of the asphalt layer can not be taken as a measure of the temperature of the entire layer, among other things, since the temperature of the surface layer is too much dependent on environmental influences such as prevailing wind or rain, but which does not affect the temperature in the Have inside of the asphalt layer.
Letztlich sind somit die bei Überfahrt mit bekannten Verdichtungskontrollvorrichtungen ermittelten Werte im Schwarzdeckenbau für die Feststellung der Verdichtung der Asphaltschicht nicht aussagekräftig genug im Hinblick auf die Abhängigkeit der dynamischen Steifigkeit der Asphaltschicht von der in ihr herrschenden Temperatur.Ultimately, therefore, the values ascertained when crossing with known compactness control devices in the blackcastle construction for the determination of the compaction of the asphalt layer are not meaningful enough in view of the dependence of the dynamic stiffness of the asphalt layer on the temperature prevailing in it.
Damit ist insbesondere der bisher bei der Bodenverdichtung beschrittene Weg versperrt, die bei einer ersten Überfahrt mit einer eine Verdichtungskontrollvorrichtung aufweisenden Vibrationswalze ermittelten Werte abzuspeichern und mit den bei einer zweiten Überfahrt ermittelten Werten zu vergleichen, um von den Unterschieden auf die Verdichtung zu schließen. Die zwischen zwei Übergängen mit einer Maschine auftretenden Temperaturveränderungen in der Asphaltschicht haben einen nicht kompensierbaren Einfluß.In this way, in particular, the path hitherto taken in ground compaction is blocked, which stores values determined on a first pass with a vibratory roller having a compaction control device and compares them with the values determined during a second pass, in order to deduce the differences on the compaction. The temperature changes in the asphalt layer occurring between two transitions with a machine have an incompatible influence.
Diese Nachteile werden bei der
Aufgabe der vorliegenden Erfindung ist es, eine Vorrichtung und ein Verfahren zur Verdichtungskontrolle zu schaffen, welche/s die oben genannten Nachteile nicht aufweist und ein ermittlungsortidentisches Gegenüberstellen der Messergebnisse ermöglicht.The object of the present invention is to provide a device and a method for compaction control, which does not have the above-mentioned disadvantages and allows a detection location identical comparison of the measurement results.
Diese Aufgabe wird erfindungsgemäß bei einer gattungsgemäßen Vorrichtung zur Verdichtungskontrolle dadurch gelöst, dass die Vibrationswalzen jeweils mit einer der Verdichtungskontrollvorrichtungen versehen sind, und dass die Auswerteeinheit ein Verzögerungselement enthält, mit dem die Messergebnisse der ersten Verdichtungskontrollvorrichtung Zwischen zuspeichern sind, zum ermittlungsortidentischen Gegenüberstellen mit den Messergebnissen der zweiten Verdichtungskontrollvorrichtung.This object is achieved in a generic device for compaction control characterized in that the vibration rollers are each provided with one of the compression control devices, and that the evaluation unit includes a delay element with which the measurement results of the first compression control device are intermediate store, identical to the location of the comparison with the measurement results of second compression control device.
Bezüglich des Verfahrens zur Verdichtungskontrolle wird die Aufgabe dadurch gelöst, dass die Vibrationswalzen jeweils mit einer der Verdichtungskontrollvorrichtungen versehen sind, wobei ein Verzögerungselement die Messergebnisse der einen Verdichturgskontrollvorrichtung in Abhängigkeit einer von der Fahrgeschwindigkeit und dem Abstand der beiden miteinander gekoppelten Vibrationswalzen bestimmten Haltezeit zwischenspeichert und zum ermittlungsortidentischen Gegenüberstellen mit den Messergebnissen der anderen Verdichtungskontrollvorrichtung verzögest weitergibt.With respect to the method for compaction control, the object is achieved in that the vibration rollers are each provided with one of the compression control devices, wherein a delay element, the measurement results of a Verdichturgskontrollvorrichtung in response to one of the driving speed and the distance between the two coupled vibrating rollers specific holding time cached and the detection location identical Contrary with the measurement results of the other compression control device verzögest passes.
Vorteilhafte Weiterbildungen werden in den abhängigen Ansprüchen beschrieben.Advantageous developments are described in the dependent claims.
Die Erfindung hat den Vorteil, daß durch die mit der ersten Vibrationswalze gekoppelte zweite Vibrationswalze der zweite Übergang zeitlich so unmittelbar folgend zu erreichen ist, daß der zwischen den beiden Übergängen liegende Zeitraum im Hinblick auf eine Temperaturänderung in der Asphaltschicht vernachlässigt werden kann. Desweiteren können durch die vorhandene Auswerteeinheit, die die Meßergebnisse der beiden in der ersten bzw. der zweiten Vibrationswalze zugeordneten Verdichtungskontrollvorrichtungen gegenüberstellt, auch Einflüsse kompensiert werden, wenn aufgrund der vorhandenen Meßtiefe die Steifigkeit des unter den Asphaltschichten liegenden Untergrundes anteilig mitgemessen wird. Dieser Einfluß der Untergrundsteifigkeit kann durch Differenzbildung bei den Meßergebnissen bei der Gegenüberstellung eliminiert werden.The invention has the advantage that, as a result of the second vibrating roller coupled to the first vibrating roller, the second transition can be reached immediately in time so that the period between the two transitions can be neglected with regard to a temperature change in the asphalt layer. Furthermore, influences can also be compensated by the existing evaluation unit, which compares the measurement results of the two associated in the first and the second vibratory roller compression control devices, if due to the existing depth of measurement, the stiffness of lying below the asphalt layers subsurface proportionally mitgemessen. This influence of the background stiffness can be eliminated by subtraction of the measurement results in the comparison.
Der Erfindung liegt dabei auch die Erkenntnis zugrunde, daß die Änderung der Asphaltsteifigkeit ein recht guter Referenzwert für die Zunahme des Verdichtungsfortschrittes des Asphaltes ist.The invention is also based on the finding that the change in asphalt stiffness is a fairly good reference value for the increase in the compaction progress of the asphalt.
Durch die erfindungsgemäße Kopplung der beiden Vibrationswalzen, durch die eine im wesentlichen spurgetreue Verfolgung der ersten durch die zweite Vibrationswalze ermöglicht wird, wird noch eine Besonderheit im Schwarzdeckenbau berücksichtigt, die einen erheblichen Unterschied zur üblichen Bodenverdichtung mit Vibrationswalzen darstellt: Während bei den üblichen Verdichtungsvorgängen die einzelnen Verdichtungsbahnen Spur an Spur parallel nebeneinanderliegen, wird im Schwarzdeckenbau zur Verhinderung von Rillenbildungen ein schleifen- und meanderförmiger Fahrweg gewählt, der bei einem separaten zweiten Übergang normalerweise nicht reproduzierbar ist.Due to the coupling of the two vibrating rollers according to the invention, by a substantially true to the lurch tracking of the first is made possible by the second vibratory roller, a special feature in the black ceiling construction is taken into account, which represents a significant difference from the usual soil compaction with vibrating rollers: While in the usual compression processes, the individual Compaction tracks are adjacent to one another in a track-by-track manner, and in the black-clad construction to prevent the formation of grooves, it becomes a looped and meander-shaped one Track chosen, which is usually not reproducible at a separate second transition.
Durch die spurgetreue Koppelung der beiden Vibrationswalzen ist diese Problematik überwunden.Due to the faithful coupling of the two vibratory rollers, this problem is overcome.
Für die während des Verdichtungsprozesses ermittelten Werte enthält die Auswerteeinheit noch ein Verzögerungselement, mit dem die Meßergebnisse der ersten Verdichtungskontrollvorrichtung zwischenzuspeichern sind zum ermittlungsortidentischen Gegenüberstellen mit den Meßergebnissen der zweiten Verdichtungskontrollvorrichtung.For the values determined during the compression process, the evaluation unit also contains a delay element, with which the measurement results of the first compression control device are to be buffered for the detection location identical comparison with the measurement results of the second compression control device.
Es ist einleuchtend, daß die Haltezeit des Verzögerungselementes abhängig ist von der Fahrgeschwindigkeit und dem Abstand der beiden miteinander gekoppelten Vibrationswalzen.It is obvious that the holding time of the delay element is dependent on the driving speed and the distance between the two vibratory rollers coupled to each other.
Am vorteilhaftesten läßt sich die spurgetreue Kopplung der Vibrationswalzen in einer Tandemwalze erreichen. Es liegt aber auch im Rahmen der Erfindung, die Vibrationswalzen in zwei separaten Walzenzügen vorzusehen, die dann insbesondere über ein rechnergestütztes Nachführverfahren miteinander gekoppelt sind. Bei diesem rechnergestützten Nachführverfahren kann beispielsweise auf satellitengestützte Global-Positioning-Systeme (GPS) zurückgegriffen werden. Die beiden einander nachgeführten Walzenzüge können aber auch über Radar, Ultraschall, Infrarot etc. miteinander gekoppelt sein. Selbstverständlich ist auch eine starre Koppelung über eine Stange möglich.Most advantageously, the lifelike coupling of the vibratory rollers can be achieved in a tandem roller. However, it is also within the scope of the invention to provide the vibratory rollers in two separate compactors, which are then coupled together in particular via a computer-aided Nachführverfahren. In this computer-aided tracking method, for example, satellite-based Global Positioning Systems (GPS) can be used. The two mutually tracked compactors can also be coupled to each other via radar, ultrasound, infrared, etc. Of course, a rigid coupling via a rod is possible.
Es hat sich als vorteilhaft herausgestellt, daß die zwei vorgesehenen Verdichtungskontrollvorrichtungen kalibrierbar sind, um so Unterschiede in der Meßwertaufnahme ausgleichen zu können. Insbesondere wird für die Kalibrierung vorgeschlagen, die zwei Vibrationswalzen auf Elemente mit bekannten und/oder gleichen dynamischen Steifigkeiten aufzusetzen, beispielsweise Blöcke aus elastischem Material, und dann die sich ergebenden Meßwerte abzugleichen.It has proven to be advantageous that the two provided compression control devices can be calibrated in order to be able to compensate for differences in the measured value recording. In particular, it is proposed for the calibration to set up the two vibratory rollers on elements with known and / or same dynamic stiffness, for example blocks of elastic material, and then to adjust the resulting measured values.
Weitere Vorteile und Merkmale der Erfindung ergeben sich aus der nachfolgenden Beschreibung eines Ausführungsbeispiels. Dabei zeigt
- Figur 1
- eine Seitenansicht eines Verdichtungsgerätes, bei dem eine erfindungsgemäße Vorrichtung vorgesehen ist;
- Figur 2
- eine schematische Skizze, an der die Verdichtungskontrollvorrichtungen im Zusammenhang mit der Auswerteeinheit dargestellt sind.
- FIG. 1
- a side view of a compacting apparatus in which a device according to the invention is provided;
- FIG. 2
- a schematic sketch, in which the compression control devices are shown in connection with the evaluation unit.
In
In der
Die von den beiden Verdichtungskontrollvorrichtungen 5 und 6 ermittelten dynamischen Gesamtsteifigkeiten werden als Meßergebnisse an eine Auswerteeinheit 9 weitergeleitet, die die von der vorderen bzw. der hinteren Verdichtungskontrollvorrichtung erhaltenen Meßergebnisse gegenüberstellt. Dabei wird durch Vergleich der gemessenen Steifigkeit an der vorderen bzw. hinteren Walze die Zunahme der Steifigkeit resultierend aus den Überfahrten der Walzen ermittelt. Wird die Zunahme gering, kann die Verdichtung der Asphaltschicht 7 als abgeschlossen angenommen werden.The dynamic overall stiffnesses determined by the two
Da die vordere Walze 1 und die hintere Walze 3 über den Aufbau 2 mit einem relativ kurzen Abstand zwischeneinander gekoppelt sind, vergeht zwischen den Überfahrten der vorderen Walze 1 und der hinteren Walze 2 an der gleichen Stelle nur eine sehr geringe Zeitdauer, so daß sich die Temperatur des Asphaltes, von der die Steifigkeit der Asphaltschicht neben der Verdichtung noch abhängt, nicht ändert. Die mit der ersten und der zweiten Verdichtungskontrollvorrichtung ermittelten Werte sind somit, da sie bei quasi gleicher Temperatur ermittelt wurden, von dieser unabhängig.Since the front roller 1 and the
Durch eine Differenzbildung in der Auswerteeinheit 9 wird auch der Einfluß der Untergrundsteifigkeit eliminiert. Das von der Auswerteeinheit 9 an eine Anzeigevorrichtung 10 übermittelte Ergebnis ist somit ein direktes Maß für die erreichte Verdichtung der Asphaltschicht 7.By forming a difference in the evaluation unit 9, the influence of the background stiffness is eliminated. The result transmitted by the evaluation unit 9 to a
Bei dieser Anzeigevorrichtung 10 kann es sich beispielsweise um ein den Verdichtungsunterschied anzeigendes Zeigerinstrument handeln aber auch eine Leuchtdiodenanzeige, die ampelartig eine ausreichende oder noch nicht ausreichende Verdichtung signalisiert.This
Um die von den Verdichtungskontrollvorrichtungen 5 und 6 gelieferten Meßwerte direkt miteinander vergleichen zu können, sind im hier dargestellten Beispiel zum Ausgleich von walzenspezifischen Unterschieden in den Kontrollvorrichtungen noch Kalibrierelemente 11 vorgesehen, mit denen beispielsweise unterschiedliche Walzengewichte ausgleichbar sind. Um im übrigen mit der Anzeigeeinheit 10 den mit den Walzen 1 oder 3 ermittelten Meßwert für die gleiche Bodenstelle zu vergleichen, ist in der Auswerteeinheit 9 noch ein Verzögerungselement 12 integriert. Dessen Haltedauer zur verzögerten Weitergabe von der vorderen Walze 1 ermittelten Meßwertes ist abhängig von dem Abstand zwischen der vorderen Walze 1 und der hinteren Walze 3 sowie von der Geschwindigkeit entsprechend dem Pfeil 13 in den
Es sei noch erwähnt, daß die Walze 3 im hier dargesellten Beispiel der Walze 1 aufgrund der mechanischen Kopplung im Aufbau 2 und dem Pendelknickgelenk 4 im wesentlichen spurgetreu folgt, so daß es sich bei dem mit den beiden Walzen 1 und 3 ermittelten Werten um Meßwerte jeweils identischer Stellen handelt.It should be noted that the
Claims (12)
- Device for compaction control, in particular of black top pavement in street and road construction, having two vibratory rollers (1, 3), two compaction control devices (5, 6) and an evaluation unit (9) which compares the measurement results of the two compaction control devices (5, 6), wherein the two vibratory rollers (1, 3) are coupled with one other so as to follow essentially the same track, characterized in that the vibratory rollers (1, 3) are each provided with one of the compaction control devices (5, 6) and that the evaluation unit (9) contains a time-delay element (12) with which the measurement results of the first compaction control device (5) are to be stored for a comparison with the measurement results of the second compaction control device (6) based on identical points of determination.
- Device according to claim 1, characterized in that the vibratory rollers (1, 3) are coupled in a tandem roller.
- Device according to claim 1, characterized in that the vibratory rollers (1, 3) are in two separate rolling mill drives, which are coupled with one another via a computer-assisted guidance system.
- Device according to claim 1, characterized in that the two compaction control devices (5, 6) can be calibrated.
- Device according to claim 1, characterized in that an optical display unit (10) is allocated to the evaluation unit (9).
- Method for compaction control, in particular of black top pavement in street and road construction, wherein the ground is compacted with a compaction device comprising two vibratory rollers (1, 3) and two compaction control devices (5, 6), wherein the two vibratory rollers (1, 3) are coupled with one other so as to follow essentially the same track, wherein measurement results of the ground to be compacted are determined by both compaction control devices (5, 6) and wherein the measurement results are compared in an evaluation unit (9) for the determination of the degree of compaction, characterized in that the vibratory rollers (1, 3) are each provided with one of the compaction control devices (5, 6) and that a time-delay element (12) stores the measurement results of the compaction control device (5) in dependence on a holding time determined by the speed of travel and the distance between the two vibratory rollers (1,3) coupled with one another and relays these results after a time delay for a comparison with the measurement results of the other compaction control device (6) based on identical points of determination.
- Method according to claim 6, characterized in that the measurement results are determined at a tandem roller coupling the vibratory rollers (1,3).
- Method according to claim 6, characterized in that the measurement results are determined at vibratory rollers (1, 3) coupled in two separate rolling mill drives, wherein these are coupled with one another via a computer-assisted guidance system.
- Method according to claims 6 to 8, characterized in that roller-specific differences are compensated by means of a calibration element (11).
- Method according to one of claims 6 to 9, characterized in that, by means of a comparison of the stiffnesses measured at and as a result of the crossings of the vibratory rollers (1, 3), the increase in stiffness is determined as a measure of the degree of compaction.
- Method according to one of claims 6 to 10, characterized in that the dynamic overall stiffness of the asphalt layer to be compacted as well as the proportional stiffnesses of the already compacted ground underneath are determined as measurement results.
- Method according to claim 11, characterized in that the influence of the stiffness of the already compacted ground beneath the asphalt layer to be compacted is eliminated by a differential calculation of the measurement results in the evaluation unit (9) during the comparison.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19956943.6A DE19956943B4 (en) | 1999-11-26 | 1999-11-26 | Device for controlling the compaction in vibration compaction devices |
| DE19956943 | 1999-11-26 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP1103658A2 EP1103658A2 (en) | 2001-05-30 |
| EP1103658A3 EP1103658A3 (en) | 2003-04-02 |
| EP1103658B1 true EP1103658B1 (en) | 2010-04-21 |
Family
ID=7930429
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP00120515A Expired - Lifetime EP1103658B1 (en) | 1999-11-26 | 2000-09-20 | Device and method for controlling the compaction effect of vibrating devices |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US6551019B1 (en) |
| EP (1) | EP1103658B1 (en) |
| JP (1) | JP4012681B2 (en) |
| AT (1) | ATE465300T1 (en) |
| DE (2) | DE19956943B4 (en) |
Families Citing this family (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6750621B2 (en) * | 2001-09-10 | 2004-06-15 | Sauer-Danfoss Inc. | Method and system for non-contact sensing of motion of a roller drum |
| US7168885B2 (en) | 2004-08-16 | 2007-01-30 | Caterpillar Paving Products Inc | Control system and method for a vibratory mechanism |
| US7669458B2 (en) * | 2004-11-10 | 2010-03-02 | The Board Of Regents Of The University Of Oklahoma | Method and apparatus for predicting density of asphalt |
| EP1705293A1 (en) | 2005-03-23 | 2006-09-27 | Ammann Aufbereitung AG | Method and device for compacting an area of ground |
| US20090214300A1 (en) * | 2005-05-25 | 2009-08-27 | Bjorn Birgisson | Devices, systems, and methods for measuring and controlling compactive effort delivered to a soil by a compaction unit |
| DE102007019419A1 (en) * | 2007-04-23 | 2008-10-30 | Hamm Ag | Method for determining a degree of compaction of asphalts and system for determining a degree of compaction |
| US20080267719A1 (en) * | 2007-04-24 | 2008-10-30 | Caterpillar Inc. | Towed compaction determination system utilizing drawbar force |
| EP2148005A1 (en) * | 2008-07-24 | 2010-01-27 | Ammann Czech Republic, a.s. | Tandem vibratory roller |
| US8190338B2 (en) | 2008-09-02 | 2012-05-29 | The Board Of Regents Of The University Of Oklahoma | Method and apparatus for compaction of roadway materials |
| US8142103B2 (en) * | 2009-02-20 | 2012-03-27 | Caterpillar Trimble Control Technologies Llc | Wireless sensor with kinetic energy power arrangement |
| DE102010052713A1 (en) | 2010-11-26 | 2012-05-31 | Bomag Gmbh | A traveling soil compacting device and method for detecting a layer E modulus of a topmost layer of said bottom layer structure |
| EP2514871B1 (en) * | 2011-04-18 | 2016-05-11 | Joseph Vögele AG | Method for laying and compacting an asphalt layer |
| DE102011076131A1 (en) * | 2011-05-19 | 2012-11-22 | Hamm Ag | System for providing information representing a vibration state for the operation of vibration-emitting machines, in particular construction machines |
| US8965638B2 (en) | 2011-06-30 | 2015-02-24 | Caterpillar Paving Products, Inc. | Vibratory frequency selection system |
| EP2666908A1 (en) * | 2012-05-24 | 2013-11-27 | Universiteit Twente | Real-time method for automated prediction of internal layer temperature of paving material during paving operations |
| DE202013003515U1 (en) | 2013-04-13 | 2013-06-05 | Bomag Gmbh | Construction machine for soil compaction and bearing arrangement for such a construction machine |
| US9039319B2 (en) * | 2013-06-28 | 2015-05-26 | Caterpillar Paving Products Inc. | Modifying compaction effort based on material compactability |
| CN105970777B (en) * | 2016-05-17 | 2018-01-19 | 长安大学 | A kind of embankment compaction apparatus |
| CN109444206B (en) * | 2018-11-26 | 2020-12-11 | 招商局重庆交通科研设计院有限公司 | Method and device for detecting quality of asphalt pavement |
| CN112924310B (en) * | 2020-09-03 | 2022-08-19 | 中节能建设工程设计院有限公司 | Rockfill dam material compaction quality detection method based on soil body rigidity |
| CN113373764A (en) * | 2021-04-20 | 2021-09-10 | 黑龙江工程学院 | Pavement continuous compaction quality monitoring method, acquisition terminal, monitoring terminal and system |
| CN113564993B (en) * | 2021-08-31 | 2022-07-01 | 中交路桥北方工程有限公司 | High-modulus asphalt pavement construction device and method based on heavy-duty traffic |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4149253A (en) * | 1970-11-21 | 1979-04-10 | Losenhausen Maschinenbau Ag | Soil compacting apparatus |
| DE2942334C2 (en) * | 1979-10-19 | 1984-06-28 | Koehring Gmbh - Bomag Division, 5407 Boppard | Device for monitoring the degree of compaction |
| SE457807B (en) * | 1984-09-17 | 1989-01-30 | Peter Arnberg | PROCEDURE AND DEVICE FOR SATISFACTION OF ROAD PAVILABILITY |
| SE445566B (en) * | 1984-11-19 | 1986-06-30 | Thurner Geodynamik Ab | PROCEDURE FOR ESTIMATING THE PACKING RATE OPENED BY PACKAGING AND DEVICE TO META PACKING RATE FOR THE IMPLEMENTATION OF THE PROCEDURE |
| DE4124193A1 (en) * | 1991-07-20 | 1993-01-21 | Wacker Werke Kg | METHOD FOR DETECTING AND DISPLAYING THE GROUND DENSITY REACHED WHEN WORKING WITH A GROUND COMPRESSOR |
| ZA952853B (en) * | 1994-04-18 | 1995-12-21 | Caterpillar Inc | Method and apparatus for real time monitoring and co-ordination of multiple geography altering machines on a work site |
| US5719338A (en) * | 1995-10-24 | 1998-02-17 | Ingersoll-Rand Company | Method and apparatus for providing an indication of compaction in a vibration compaction vehicle |
| US6113309A (en) * | 1996-08-20 | 2000-09-05 | Hollon; Edmund D. | Uniform compaction of asphalt concrete |
| EP0932726B1 (en) * | 1996-10-21 | 2000-08-02 | Ammann Verdichtung AG | Method of measuring mechanical data of a soil, and of compacting the soil, and measuring or soil-compaction device |
| US5952561A (en) * | 1997-03-19 | 1999-09-14 | Iowa State University Research Foundation, Inc. | Real time asphalt pavement quality sensor using a differential approach |
-
1999
- 1999-11-26 DE DE19956943.6A patent/DE19956943B4/en not_active Expired - Lifetime
-
2000
- 2000-09-20 DE DE50015908T patent/DE50015908D1/en not_active Expired - Lifetime
- 2000-09-20 EP EP00120515A patent/EP1103658B1/en not_active Expired - Lifetime
- 2000-09-20 AT AT00120515T patent/ATE465300T1/en not_active IP Right Cessation
- 2000-11-22 US US09/721,534 patent/US6551019B1/en not_active Expired - Lifetime
- 2000-11-22 JP JP2000355092A patent/JP4012681B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| US6551019B1 (en) | 2003-04-22 |
| JP4012681B2 (en) | 2007-11-21 |
| DE19956943B4 (en) | 2020-03-19 |
| EP1103658A3 (en) | 2003-04-02 |
| EP1103658A2 (en) | 2001-05-30 |
| DE19956943A1 (en) | 2001-05-31 |
| JP2001193011A (en) | 2001-07-17 |
| ATE465300T1 (en) | 2010-05-15 |
| DE50015908D1 (en) | 2010-06-02 |
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