EP0704575A2 - Méthode et dispositif pour le compactase dynamique du sol - Google Patents

Méthode et dispositif pour le compactase dynamique du sol Download PDF

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Publication number
EP0704575A2
EP0704575A2 EP95110476A EP95110476A EP0704575A2 EP 0704575 A2 EP0704575 A2 EP 0704575A2 EP 95110476 A EP95110476 A EP 95110476A EP 95110476 A EP95110476 A EP 95110476A EP 0704575 A2 EP0704575 A2 EP 0704575A2
Authority
EP
European Patent Office
Prior art keywords
roller
excitation
shafts
phase position
vertical
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP95110476A
Other languages
German (de)
English (en)
Other versions
EP0704575A3 (fr
EP0704575B1 (fr
Inventor
Uwe Blancke
Karl-Hermann Mötz
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bomag GmbH and Co OHG
Original Assignee
Bomag GmbH and Co OHG
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Filing date
Publication date
Application filed by Bomag GmbH and Co OHG filed Critical Bomag GmbH and Co OHG
Publication of EP0704575A2 publication Critical patent/EP0704575A2/fr
Publication of EP0704575A3 publication Critical patent/EP0704575A3/fr
Application granted granted Critical
Publication of EP0704575B1 publication Critical patent/EP0704575B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • 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
    • E01C19/286—Vibration or impact-imparting means; Arrangement, mounting or adjustment thereof; Construction or mounting of the rolling elements, transmission or drive thereto, e.g. to vibrator mounted inside the roll

Definitions

  • the invention relates to a method and a device for dynamic compaction of soil with at least one movable roller which carries out oscillatory movements by acting on the roller with an oscillatory force which can be adjusted in its direction, so that either horizontal thrust forces and / or vertical compressive forces are exerted on the soil .
  • Such a compression system is known from EP-A 530 546 by the same applicant. It has the advantage that, depending on the nature of the soil, the layer depth to be compacted and other parameters, it can be compacted predominantly with shear forces or with vertical compressive forces.
  • the object of the present application is to further improve this compaction system and, in particular, to rule out over-compaction of the soil with local grain destruction and deformation of the road surface.
  • This object is achieved in terms of the method features in that the oscillatory movement of the roller or a part connected to it is detected and that in the event of a disturbance of the basic roller vibration vertical portion of the vibration force is reduced until the disturbance is almost corrected.
  • the invention is based on the knowledge that with increasing compaction of the soil and correspondingly increasing soil hardness, the compaction roller tends to jump, as a result of which not only is the compaction roller subjected to high mechanical stresses, but also the compaction quality decreases. The driver can usually only perceive this jumping insufficiently physically or visually and then abort the compaction process, which is usually too late.
  • the present invention allows the portion of the oscillation movement responsible for jumping and over-compression to be reduced in good time and instead instead to be increasingly converted to horizontal thrust forces which prevent jumping.
  • the invention can therefore be viewed on the one hand as an anti-cracking lock and on the other hand as an over-compression lock. It also allows you to work with higher vibration amplitudes than before, because damage to the roller from hard floors is no longer possible.
  • the amplitude of the oscillatory movement or a derivative thereof, in particular the acceleration can be detected.
  • the vertical share of acceleration increases when the roller loses contact with the ground.
  • the period of the Vibration movement can be detected, since almost doubling occurs here when jumping.
  • the device for carrying out the compression method according to the invention is based on a compression device with at least two exciter shafts rotating in parallel or in alignment with the roller axis and rotating in opposite directions, the position and / or phase position of which can be adjusted in such a way that their resulting centrifugal force selectively exerts horizontal thrust forces and / or vertical pressure forces exercises the ground.
  • the method according to the invention is then implemented in such a way that the roller or a part connected to it is in operative connection with a movement sensor for detecting the oscillation movement and that the movement sensor is connected to a control circuit which, in the event of a disturbance in the basic oscillation of the roll, detects the position and / or Phase position of the excitation waves adjusted in the sense of a reduction in the vertical pressure forces.
  • the excitation shafts are arranged approximately horizontally next to one another and the adjustment between horizontal and vertical centrifugal forces is effected by changing the phase position of the excitation waves, as is known per se.
  • the exciter shafts are operatively connected to one another via gearwheels, so that a fixable one for adjusting the phase position of the one exciter shaft Rotary bearing between it and the gear assigned to it can be used.
  • This rotary bearing expediently consists of an adjustment helix connected to the gearwheel, in which an adjustment axis is axially screwed, which is axially displaceable but non-rotatably connected to the excitation shaft.
  • the phase position should be adjustable by over 150 °, in particular up to almost 360 °.
  • Figure 1 you can see a compactor with two vibrating rollers, which externally has the conventional structure, i.e. consists of a front roller 1 with structure 2a and driver's cab and from a rear roller 3 with structure 2b, the two structures 2a and 2b to steer the Vehicle are connected to each other via a vertical pivot bearing 4.
  • the conventional structure i.e. consists of a front roller 1 with structure 2a and driver's cab and from a rear roller 3 with structure 2b, the two structures 2a and 2b to steer the Vehicle are connected to each other via a vertical pivot bearing 4.
  • Figure 2 shows schematically the two excitation shafts 5 and 6, which are each arranged inside the roller 1 and 3.
  • the two excitation waves lie horizontally next to each other and they maintain this position regardless of the roll rotation and regardless of whether vertical pressure forces, horizontal shear forces or a combination thereof are to be generated. They rotate in opposite directions, but can be rotated relative to one another with regard to the phase position of their unbalances.
  • the excitation waves In the phase position shown in FIG. 2, the excitation waves generate a resulting oscillating force which acts exclusively in the vertical direction, periodically upwards and downwards. This can easily be seen from the reduced schematic diagrams shown on the right, where the exciter shafts are rotated by 90 °. One can immediately see that the horizontal components of the centrifugal forces generated by the excitation waves cancel each other, whereas the vertical components add up. As a result, a sinusoidal vibration force is generated, corresponding to the curve shown in the middle.
  • FIGS. 4 and 5 relate to intermediate positions in which pressure forces as well as thrust forces are generated at the same time. This has proven to be particularly useful in practical use.
  • the excitation shaft 6 has only been turned forwards by about 45 ° (FIG. 4) or turned back by 45 ° (FIG. 5).
  • a relatively large vertical force component V is then obtained with a small horizontal force component H corresponding to the sinusoidal curve shown on the right in each case.
  • the difference between the two FIGS. 4 and 5 is that the resulting horizontal force component is adapted to the desired direction of travel.
  • FIG. 6 shows a vertical section through the roller 1, but the two excitation shafts with their bearings have been folded into the plane of the drawing by 90 °.
  • the roller 1 is in a manner known per se on one end face via ball bearings 7 and rubber elements 8 on a support 9, on the other side via rubber elements 10 and the drive motor 11 suspended from a support 12.
  • the supports 9 and 12 each run upwards to the frame, that is to the structure 2a.
  • the two excitation shafts 5 and 6 are arranged inside the roller and can be rotated relative to it. They are driven by a vibration motor 13, which rotates the excitation shaft 5 directly and the other excitation shaft via a pair of gearwheels 14, 15. It is now essential that the excitation shaft 6 can be rotated relative to the gear wheel 15, specifically by means of an adjusting helix 16 connected to the gear wheel.
  • This adjusting helix has one or more screw threads 16a and is traversed in its interior by an adjusting axis 17.
  • This adjustment axis 17 in turn carries one or more radially protruding bolts 17a, which pass through the screw thread 16a and allow a positive connection between the gear 15 and the adjustment axis 17.
  • the adjustment axis 17 is in turn axially displaceable by an adjustment mechanism 18, but is freely rotatable with respect to this adjustment mechanism. On the other hand, it is axially displaceable but non-rotatably connected to the excitation shaft 6.
  • the excitation shaft 6 non-rotatably connected to the adjustment axis 17 in one or the other other direction is rotated relative to the gear 15. So that their phase position is adjusted relative to the phase position of the excitation shaft 5 and it can be in the Figures 2 to 5 assignments and set any intermediate values.
  • the total angle of rotation of the excitation shaft 6 relative to the excitation shaft 5 is almost 360 °.
  • the excitation shafts 5 and 6 together with the adjusting mechanism 18 are mounted in a housing 19 which in turn is rotatably mounted in the drum 1 and is connected to the support 9 via the rubber elements 8.
  • the control loop for the jump limitation is shown in FIG. 7. It consists of an acceleration sensor 20, which detects, for example, the vertical acceleration of the roller 1, wherein it is expediently assigned to a non-rotating part of the roller or the roller suspension.
  • the measured actual values are fed to an arithmetic unit 21, which determines the periodicity, in this case the time duration of the vertical vibration component of the roller, and superimposes it on a predefined setpoint value of reversed polarity. If the predetermined target value is exceeded, an actuator 22 receives a signal and in turn actuates the adjusting mechanism 18 via an actuating cylinder 23 such that the phase difference between the excitation shafts 5 and 6 is adjusted so that the vertical pressure force decreases in favor of the horizontal thrust force.
  • FIG. 8 shows the change in the vibration behavior when the roller begins to jump due to increasing ground rigidity.
  • the vertical acceleration component over time is in the left image of FIG. 8a or plotted over the angle of rotation of the excitation waves, in the right picture the vertical and horizontal acceleration components in polar coordinates.
  • the curve profile shown - an almost exact sine curve or a circular arc in polar coordinates - occurs under normal compression conditions. With increasing ground rigidity, both curves leave their ideal shape and the configurations shown in FIG. 8b finally appear.
  • the acceleration in the vertical direction increases significantly and the polar coordinates show that the circle becomes two ellipses, which means that the period is doubled. The reason for this is the jumping of the roller, because one revolution of the roller in the air is followed by one revolution with contact with the ground.
  • the upper limit value for the vertical acceleration component is about 40m / s2 in the control loop, so that the behavior shown in FIG. 8b cannot occur.
  • phase difference between the two excitation waves.
  • the operator would detect disturbances in the basic roll vibration (jump operation) take place or using known compression measuring devices and in the event of malfunctions, the phase difference would then be set manually or automatically to the next intermediate value at which lower vertical pressure forces are generated.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Road Paving Machines (AREA)
  • Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)
  • Soil Working Implements (AREA)
  • Excavating Of Shafts Or Tunnels (AREA)
  • Crushing And Grinding (AREA)
EP95110476A 1994-09-29 1995-07-05 Méthode et dispositif pour le compactage dynamique du sol Expired - Lifetime EP0704575B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4434779 1994-09-29
DE4434779A DE4434779A1 (de) 1994-09-29 1994-09-29 Verfahren und Vorrichtung zum dynamischen Verdichten von Boden

Publications (3)

Publication Number Publication Date
EP0704575A2 true EP0704575A2 (fr) 1996-04-03
EP0704575A3 EP0704575A3 (fr) 1996-08-21
EP0704575B1 EP0704575B1 (fr) 1998-07-22

Family

ID=6529490

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95110476A Expired - Lifetime EP0704575B1 (fr) 1994-09-29 1995-07-05 Méthode et dispositif pour le compactage dynamique du sol

Country Status (8)

Country Link
US (1) US5797699A (fr)
EP (1) EP0704575B1 (fr)
JP (1) JP3193988B2 (fr)
AT (1) ATE168731T1 (fr)
CA (1) CA2157428C (fr)
DE (2) DE4434779A1 (fr)
DK (1) DK0704575T3 (fr)
ES (1) ES2122404T3 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2748500A1 (fr) * 1996-05-09 1997-11-14 Vaillant Christian Dispositif autorisant le controle, et la variation d'amplitude des vibrations appliquees aux rouleaux compacteurs tournants
CZ299778B6 (cs) * 2007-07-04 2008-11-19 Ammann Czech Republic A. S. Tandemový vibracní válec
CN106049237A (zh) * 2015-04-08 2016-10-26 卡特彼勒路面机械公司 基于温度的自适应压实
CN106812050A (zh) * 2015-12-02 2017-06-09 哈姆股份公司 用于得出地基的压实状态的方法
AT523034A2 (de) * 2019-09-18 2021-04-15 Plasser & Theurer Export Von Bahnbaumaschinen Gmbh Maschine und Verfahren zum Stabilisieren eines Gleises

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19529115A1 (de) * 1995-08-08 1997-03-06 Wacker Werke Kg Vibrationsmechanismus, insbesondere zur Verwendung zur Verdichtung von Böden
JP3126986B2 (ja) * 1996-06-12 2001-01-22 株式会社小松製作所 クローラ式振動締固機械
JPH10176305A (ja) * 1996-12-17 1998-06-30 Hitachi Constr Mach Co Ltd タイヤローラ
SE513571C2 (sv) 1999-03-18 2000-10-02 Ulf Bertil Andersson Anordning för alstring av mekaniska vibrationer
US6558072B2 (en) 2001-05-15 2003-05-06 Caterpillar Paving Products Inc. Speed control system for a work machine
US6750621B2 (en) * 2001-09-10 2004-06-15 Sauer-Danfoss Inc. Method and system for non-contact sensing of motion of a roller drum
US6637280B2 (en) 2001-10-31 2003-10-28 Caterpillar Paving Products Inc Variable vibratory mechanism
US7089823B2 (en) 2002-05-29 2006-08-15 Caterpillar Paving Products Inc. Vibratory mechanism controller
CN100393942C (zh) * 2003-10-11 2008-06-11 陈启方 一种智能振动压路机的激振器
CN100393941C (zh) * 2003-10-15 2008-06-11 陈启方 一种垂直振动压路机的激振器
EP1568420B1 (fr) * 2004-02-29 2018-08-15 BOMAG GmbH Dispositif et méthode de commande pour une machine vibrante
DE102009055950A1 (de) * 2009-11-27 2011-06-01 Hamm Ag Verdichtungsgerät, sowie Verfahren zum Verdichten von Böden
US20110158745A1 (en) * 2009-12-31 2011-06-30 Caterpillar Paving Products Inc. Vibratory system for a compactor
DE102011088567A1 (de) * 2011-12-14 2013-06-20 Hamm Ag Vorrichtung zur Erfassung der Bewegung einer Verdichterwalze eines Bodenverdichters
US8608403B2 (en) 2012-03-28 2013-12-17 Caterpillar Paving Products Inc. Magnetic vibratory compactor
DE102012024104A1 (de) * 2012-12-10 2014-06-12 Bomag Gmbh Verdichtungsmaschine
CN103498464B (zh) * 2013-10-19 2015-05-06 浦江县科创进出口有限公司 一种滚压系统
DE102013020690A1 (de) 2013-12-03 2015-06-03 Bomag Gmbh Schwingungserreger für einen Vibrationsverdichter sowie Baumaschine mit einem solchen Schwingungserreger
JP6214428B2 (ja) * 2014-02-26 2017-10-18 大成ロテック株式会社 締固め装置及び締固め地盤の施工方法
DE102014205503A1 (de) 2014-03-25 2015-10-01 Hamm Ag Verfahren zur Korrektur eines Messwerteverlaufs durch das Eliminieren periodisch auftretender Messartefakte, insbesondere bei einem Bodenverdichter
US9534995B2 (en) * 2014-06-11 2017-01-03 Caterpillar Paving Products Inc. System and method for determining a modulus of resilience
CN104749054B (zh) * 2015-03-13 2017-05-03 同济大学 三维可操控强夯模拟离心机试验机械手装置
DE102016109888A1 (de) 2016-05-30 2017-11-30 Hamm Ag Bodenverdichter und Verfahren zum Betreiben eines Bodenverdichters
DE102017122370A1 (de) * 2017-09-27 2019-03-28 Hamm Ag Oszillationsmodul
SE543161C2 (en) * 2018-09-28 2020-10-13 Dynapac Compaction Equipment Ab Method of controlling operation of a vibratory roller
CN109632217B (zh) * 2018-10-25 2020-10-13 重庆交通大学 路面结构承载力连续检测方法

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0530546A1 (fr) 1991-09-03 1993-03-10 BOMAG GmbH Appareil de compactage

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US3741820A (en) * 1970-12-07 1973-06-26 A Hebel Method for stress relieving metal
DE2554013C3 (de) * 1975-12-01 1984-10-25 Koehring Gmbh - Bomag Division, 5407 Boppard Verfahren zur dynamischen Bodenverdichtung
US4103554A (en) * 1976-03-12 1978-08-01 Thurner Heinz F Method and a device for ascertaining the degree of compaction of a bed of material with a vibratory compacting device
FR2390546A1 (fr) * 1977-05-09 1978-12-08 Albaret Sa Procede et dispositif pour le reglage en frequence des vibrations appliquees a un sol pour un engin de compactage, et engin de compactage equipe d'un tel dispositif
SE426719B (sv) * 1980-12-03 1983-02-07 Thurner Geodynamik Ab Forfarande och anordning for packning av ett materialskikt
AT376728B (de) * 1982-02-17 1984-12-27 Voest Alpine Ag Unwuchtanordnung zur erzeugung von vibrationen
SE432792B (sv) * 1982-04-01 1984-04-16 Dynapac Maskin Ab Forfarande och anordning for att astadkomma optimal packningsgrad vid packning av olika material sasom asfalt, jord etc medelst en vibrerande velt
DE3421824C2 (de) * 1984-06-13 1986-07-17 CASE VIBROMAX GmbH & Co KG, 4000 Düsseldorf Vorrichtung zur Kontrolle der Verdichtung bei Vibrationsverdichtungsgeräten
DE3806897A1 (de) * 1988-03-03 1989-09-14 Wacker Werke Kg Schwingungserreger
DE4116632A1 (de) * 1991-05-22 1992-11-26 Matthias Reck Vorrichtung zur drehrichtungs- und synchronisationsfehlererkennung
SE501040C2 (sv) * 1993-03-08 1994-10-24 Thurner Geodynamik Ab Förfarande och anordning för styrning av en vals svängningsrörelse vid packning av ett underlag såsom jord, vägbankar, asfalt, etc

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0530546A1 (fr) 1991-09-03 1993-03-10 BOMAG GmbH Appareil de compactage

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2748500A1 (fr) * 1996-05-09 1997-11-14 Vaillant Christian Dispositif autorisant le controle, et la variation d'amplitude des vibrations appliquees aux rouleaux compacteurs tournants
CZ299778B6 (cs) * 2007-07-04 2008-11-19 Ammann Czech Republic A. S. Tandemový vibracní válec
CN106049237A (zh) * 2015-04-08 2016-10-26 卡特彼勒路面机械公司 基于温度的自适应压实
CN106049237B (zh) * 2015-04-08 2020-06-16 卡特彼勒路面机械公司 基于温度的自适应压实
CN106812050A (zh) * 2015-12-02 2017-06-09 哈姆股份公司 用于得出地基的压实状态的方法
CN106812050B (zh) * 2015-12-02 2019-07-09 哈姆股份公司 用于得出地基的压实状态的方法
AT523034A2 (de) * 2019-09-18 2021-04-15 Plasser & Theurer Export Von Bahnbaumaschinen Gmbh Maschine und Verfahren zum Stabilisieren eines Gleises

Also Published As

Publication number Publication date
JP3193988B2 (ja) 2001-07-30
DE4434779A1 (de) 1996-04-04
DE59502876D1 (de) 1998-08-27
DK0704575T3 (da) 1998-11-09
EP0704575A3 (fr) 1996-08-21
EP0704575B1 (fr) 1998-07-22
ATE168731T1 (de) 1998-08-15
CA2157428A1 (fr) 1996-03-30
CA2157428C (fr) 2004-01-13
JPH08105011A (ja) 1996-04-23
ES2122404T3 (es) 1998-12-16
US5797699A (en) 1998-08-25

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