EP0675232A1 - Dispositif de traitement et de consolidation de sol - Google Patents

Dispositif de traitement et de consolidation de sol Download PDF

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Publication number
EP0675232A1
EP0675232A1 EP95104077A EP95104077A EP0675232A1 EP 0675232 A1 EP0675232 A1 EP 0675232A1 EP 95104077 A EP95104077 A EP 95104077A EP 95104077 A EP95104077 A EP 95104077A EP 0675232 A1 EP0675232 A1 EP 0675232A1
Authority
EP
European Patent Office
Prior art keywords
mixer
soil
conveyor belt
opens
conditioning
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
EP95104077A
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German (de)
English (en)
Other versions
EP0675232B1 (fr
Inventor
Walter Schölkopf
Jürgen Posch
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.)
POSCH, JUERGEN
SCHOELKOPF, WALTER
Original Assignee
Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP0675232A1 publication Critical patent/EP0675232A1/fr
Application granted granted Critical
Publication of EP0675232B1 publication Critical patent/EP0675232B1/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
    • E01C21/00—Apparatus or processes for surface soil stabilisation for road building or like purposes, e.g. mixing local aggregate with binder

Definitions

  • the invention relates to a device for processing excavated soil into a stable construction material.
  • the substructure must be prepared when creating roadways, provided that the necessary load-bearing capacity of the floor is not given.
  • a predetermined amount of lime is applied to the floor surface and then the lime is worked into the uppermost layer of soil by means of soil milling or similar machines.
  • Such cultivation of the soil which is similar to arable farming, is satisfactory on large, free areas, although it is nevertheless adversely affected by lime dust and the like, provided that strong lime swirls up the lime on top or that traffic flowing past the workplace leads to corresponding air movements.
  • the invention has for its object to provide a device with which an excavated, unsustainable floor can be worked up to a stable construction material.
  • the excavated soil is processed in the feed table by a conditioning device, whereby it is mixed with a required amount of lime, cement, clay powder or the like. Additive material to form a stable construction material.
  • the material to be added is fed into the area of the conditioning device.
  • the conveyor belt leads the conditioned soil into a mixer, a weighing device being provided in front of the mixer for the conditioned soil brought in via the conveyor belt, so that the quantity of the addition material supplied via the second metering device is regulated as a function of the output signal of the weighing device can.
  • the device is arranged on a chassis, so that the necessary preparation of the excavation to a stable construction material can take place on site at any time.
  • This mobile unit can also be used for smaller projects and in built-up areas due to its closed, relocatable design.
  • the device can also be provided as a permanently mounted unit in an interim storage facility, to which the excavated earth to be worked up can be worked up taking into account reasonably short access routes.
  • the device 1 shown consists of a chassis 15 with a frame 40, which in the exemplary embodiments shown is arranged on a chassis 25.
  • the undercarriage 25 is a crawler undercarriage, as is usually the case with construction machines Is used. It may be appropriate to provide 24 wheels, in particular balloon tires or the like, instead of caterpillars. The arrangement of runners can also be advantageous if only limited mobility is necessary.
  • the chassis 15 has a longitudinal central axis 30, with the caterpillars 24 of the undercarriage 25, wheels or runners arranged parallel to the longitudinal central axis 30.
  • a feed table 2 preferably extending approximately over the width of the chassis 15, is provided.
  • the feed table 2 extends over part of the length of the chassis 15 and can be supported at the rear end 35 by means of a floor support 27 (FIG. 2).
  • the feed table 2 serves to receive excavated soil, which is filled in, for example, via the bucket 28 of a wheel loader, excavator or the like.
  • a mixer 3 is preferably arranged at the other longitudinal end 45 of the chassis 15, which is referred to below as the front end.
  • the mixer 3 is provided as a continuous mixer, which is aligned in the direction of the longitudinal central axis 30 of the chassis 15, preferably above the longitudinal central axis 30.
  • the mixer 3 is in particular a continuous shaft mixer and preferably has two mixing rotors 3a, 3b lying parallel to one another (FIG 4), which are expediently driven in opposite directions. In the overlap area, the mixing rotors 3a, 3b have the same direction of rotation.
  • the mixer 3 has an outlet opening 13 facing the undercarriage 25 or the floor 29, which preferably opens onto a discharge belt 14.
  • the discharge belt 14 leads upwards from the outlet opening 13 in order to achieve a desired discharge height H for the earth that has been prepared for stable construction material, in order to e.g. B. to be thrown into a dump truck, a truck or the like (Fig. 1).
  • Discharge belt 14 can be adjustable in height; it is preferred by a particular extendable piston / cylinder unit 41 held on the frame 40, the frame 40 forming a housing on the chassis 15 (FIG. 4).
  • a conveyor belt 4 leads from the feed table 2 to a filling opening 19 of the mixer 3, which is arranged in the longitudinal direction of the continuous mixer at the end opposite the outlet opening 13.
  • the continuous mixer 3 and the receiving trough 2 are approximately at a height, the conveyor belt 4 leading from the receiving trough 2 to the upper filling opening 19 of the mixer 3.
  • a drive unit 16 is preferably arranged, which drives both the individual devices and the undercarriage 25, so that the device 1 can also be used as a self-propelled vehicle.
  • the drive unit 16 can be an electric motor or an internal combustion engine, in particular a diesel engine, which drives a hydraulic pump or a generator. The individual units of the device are then driven by hydraulically or electrically powered motors.
  • the frame 40 has one or more storage silos 21, 22 for addition material arranged in the area of the longitudinal members running approximately allel to the running gear 25.
  • a plurality of storage silos 21a, 21b, 22a, 22b, 22c, 22d are preferably provided, which are assigned to the continuous mixer 3 or the feed table 2.
  • two storage silos 22a and 22b are provided, which together open into a metering direction 17 which leads into the filling opening 19. It may be expedient that the metering device 17 throws the additive onto the upper end of the conveyor belt 4 or puts it directly into the continuous mixer 3 at a suitable point (FIG. 5).
  • FIGS. 1, 2 While the storage silos 22 are arranged above the continuous mixer 3, another storage silo 21 is held in the frame 40 approximately above the foot of the conveyor belt 4. As can be seen from FIGS. 1, 2, two storage silos 21a and 21b are provided, which expediently feed together a metering device 7 which opens onto the delivery table 2.
  • the conveyor belt 4 leads soil from the feed table 2 in the transport direction 20 after it has been processed in a conditioning device 5.
  • the conditioning device 5 is formed from a rotor 50, which crushes the coarse-lump soil that has been poured onto the feed table 2 and conditions it in such a way that it is suitable for any further processing that may be necessary in the continuous mixer 3.
  • the rotor or the rotors are preferably interchangeable.
  • a rotor 50 can be designed as a milling rotor or also as a rotor with beating arms or the like.
  • One or more interchangeable conditioning devices 5 'having shafts 50a, 50b for comminuting and mixing the excavated earth to be worked up can also be arranged in the feed table 2.
  • the milling rotor 5 preferably works together with a height-adjustable blow bar 10, as a result of which a working gap 11 is formed between the rotor 50 and the blow bar 10 (FIGS. 2, 7), the gap width of which for setting the degree of conditioning or the desired grain size of the prepared soil is changeable.
  • the interchangeable milling rotor 50 preferably rotates in the direction of the arrow 48, that is to say in the sense of lifting the supplied soil
  • the feed table 2 has a bottom 55 which slopes towards the milling rotor 50 and has a slide 56 which can be moved back and forth by a piston / cylinder unit 57 according to arrow 58.
  • the soil thrown onto the feed table 2 is thus fed to the milling rotor by the slide 56 with an adjustable feed 50 supplied, which rotates in the direction of arrow 48 and lifts the supplied soil and takes it upward in the circumferential direction.
  • the soil is thus detected and worked up, in particular crushed or crumbled, in cooperation with a blow bar 10 arranged in the direction of rotation 48 above the base 55 of the sliding table.
  • the blow bar 10 can be formed by the front edge of an adjustable hood 60 which surrounds the milling rotor 50 over a partial circumference and which defines an adjustable working gap 11 between the hood and the rotor.
  • an adjustable conditioning quality of the soil which can be adapted to the particular circumstances.
  • additives such as lime, cement, clay powder or the like in the area of the milling rotor 50.
  • the addition into the working gap 1 has proven to be expedient, advantageously there in the direction of rotation 48 of the rotor 50, just behind the front edge of the hood 60 forming a blow bar 10.
  • the metering device 7 opens into the area of the blow bar 10 in the Working gap 11.
  • the conditioned soil passing through the working gap 11 and falling into the bottom area 44 onto the conveyor belt 4 can expediently be adjusted by means of an orifice 9 (FIG. 2).
  • an orifice slide 18 is provided, which is adjustable in the direction of the double arrow 47 by means of a hydraulic piston / cylinder unit 49.
  • the thereby adjustable passage opening 12 of the screen 9 determines the volume flow of the conditioned soil drawn from the conveyor belt 4 out of the bottom area 44.
  • the weight of this soil is measured by a weighing device 6 before being discharged into the continuous mixer 3 in order to determine the amount of the feed material supplied via the metering device 17 depending on the output signal of the weighing device 6 especially automatically set.
  • the weighing device 6 is expediently integrated in the conveyor belt 4.
  • the moisture content of the conditioned soil is also measured.
  • B. can be arranged in front of the aperture 9, a sensor 46.
  • the moisture measurement is expediently carried out shortly before the conditioned soil is discharged into the mixer 3, as is shown schematically in FIG.
  • the moisture measurement can e.g. B. by means of microwaves in the range of 5-6 gigahertz, for which purpose a corresponding measuring device 70 is arranged.
  • the output signal of the sensor 46 or the measuring device 70 can be fed together with the output signal of the weighing device 6 to a control unit 80 (FIG. 1) which controls the metering device 17 by an addition adapted to the moisture and the mass of the material fed by the conveyor belt 4 of the added material.
  • the control unit can be designed as a potentiometer control or can also be a PC control.
  • the slide 8 of the feed table 2 can also be a rear wall of a receiving trough lying transversely to the longitudinal direction 30 and which can be moved onto the milling rotor 50 via a piston / cylinder unit 38.
  • the soil in the receiving trough is thus positively guided into the effective area of the milling rotor 50.
  • a material that removes moisture from the soil is provided as the addition material, which can be cement, lime, fly ash, clay flour, bentonite or the like.
  • the same or different material can be supplied via the metering device 7 and also via the metering device 17; lime is preferably supplied via the metering devices 7 and 17.
  • Mixtures can also be dosed as additives; 1 shows - all silos 21a, 21b, 22a - d equipped with separately controllable dosing screws, whereby a quantized volume control, e.g. B. via the controller 80, is possible.
  • the soil thrown into the receiving trough is transported from the movable wall 8 into the working area of the conditioning device 5 and processed by the milling rotor 50 in connection with the blow bar 10.
  • a lime addition may be expedient, the lime addition preferably taking place in the transport direction 20 of the soil in front of the working gap 11, that is to say in front of the conditioning device 5.
  • the soil passing through the working gap 11 falls in the bottom area 44 onto the conveyor belt 4 and is drawn off in the transport direction 20, the volume flow being adjustable via the passage opening 12 of the orifice 9.
  • the weight of the volume flow is recorded by the weighing device 6, which is preferably integrated in the conveyor belt 4, before being discharged into the continuous mixer 3 and, in accordance with the output signal of the weighing device 6, the corresponding portions of addition material are fed from the storage silos 22 via the metering device 17.
  • the flow mixer which expediently rises slightly to its outlet opening 14, the mixture is thoroughly mixed, resulting in a dry, stable paving material which is used for filling work spaces in earthworks, for. B. of trenches, sewer trenches and the like. Usable.
  • the storage silos 21, 22 can only guarantee a certain operating time of the device. It is therefore provided that the material to be added is continuously fed into the silos from a large silo vehicle 42 (FIG. 6) during the continuous operation of the device.
  • the volume stored in the storage silos 21, 22 is sufficient for changing a large silo vehicle 42, so that the vehicle can be changed without interrupting the work of the device.
  • Swap silos can also be expedient, which are to be handled by a manipulator 91 (crane) attached to the device (FIG. 1).
  • the device according to FIG. 5 has two storage silos 21, 22 of essentially the same size, the storage silo 21 feeding both the first metering device 7 and the second metering device 17.
  • the second storage silo 22 exclusively feeds the second metering device 17.
  • This metering device 17 opens in the transport direction 20 of the soil after the filling opening 19 into the continuous mixer. This can be advantageous in order to avoid annoyance caused by lime dust and the like due to the addition of lime.
  • the conditioning device 5 ′ shown in FIG. 4 in the receiving trough consists of two rotors 50a, 50b, which work together to condition the soil.
  • the conditioned soil falls through a grating provided in the bottom of the receiving trough 2, the grating openings being selected to match the desired degree of conditioning of the soil.
  • the milling rotors 50 lie transversely to the longitudinal central axis 30 of the device 1; in particular with the arrangement of two milling rotors 50a, 50b as shown

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Disintegrating Or Milling (AREA)
  • Processing Of Solid Wastes (AREA)
  • Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
  • Bulkheads Adapted To Foundation Construction (AREA)
EP95104077A 1994-03-19 1995-03-20 Dispositif de traitement et de consolidation de sol Expired - Lifetime EP0675232B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4409507A DE4409507A1 (de) 1994-03-19 1994-03-19 Vorrichtung zur Aufbereitung von Erdreich zu einem standfesten Baumaterial
DE4409507 1994-03-19

Publications (2)

Publication Number Publication Date
EP0675232A1 true EP0675232A1 (fr) 1995-10-04
EP0675232B1 EP0675232B1 (fr) 1999-09-22

Family

ID=6513304

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95104077A Expired - Lifetime EP0675232B1 (fr) 1994-03-19 1995-03-20 Dispositif de traitement et de consolidation de sol

Country Status (4)

Country Link
EP (1) EP0675232B1 (fr)
AT (1) ATE184938T1 (fr)
DE (2) DE4409507A1 (fr)
ES (1) ES2136220T3 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002072329A3 (fr) * 2001-03-09 2002-12-27 Juergen Schenk Procede et dispositif de preparation, notamment de deblais
WO2003008710A1 (fr) * 2001-07-19 2003-01-30 Keanes Ltd Machine melangeuse de materiaux recycles
EP1184518A4 (fr) * 1999-06-07 2004-10-06 Komatsu Mfg Co Ltd Engin mobile d'amelioration du sol
US6971783B2 (en) 2000-07-19 2005-12-06 Keanes Limited Recycled material and mixing machinery

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19627465C2 (de) * 1996-07-08 1997-08-07 Uhrig Strasen Und Tiefbau Gmbh Verfahren zum Aufbereiten von Aushubmaterial
FR2756769B1 (fr) * 1996-12-11 1999-02-05 Eds Equipements De Depollution Machine mobile pour traiter les terres naturelles des sols pour pouvoir les reutiliser en remblais et pour depolluer les sols pollues
DE19718330A1 (de) * 1997-04-30 1998-11-19 Weiss Gmbh & Co Leonhard Verwendung einer mit einer Grabenaushubeinrichtung zusammenarbeitenden, mobilen Aufbereitungseinrichtung für Bodenaushub im Straßenbau
JP3387829B2 (ja) 1998-07-24 2003-03-17 日立建機株式会社 自走式土質改良機械
DE102005029561A1 (de) * 2005-06-23 2006-12-28 Schenk, Jürgen Aufbereitungseinrichtung und Verfahren
ITRM20050404A1 (it) * 2005-07-28 2007-01-29 Pavimental S P A Macchina di riciclaggio a freddo del materiale che costituisce la pavimentazione stradale e per il rifacimento di tratti della stessa.
CN102900066B (zh) * 2012-10-26 2014-08-13 无锡同春新能源科技有限公司 一种用于固沙的车辆装置
CN102877461B (zh) * 2012-10-26 2014-10-15 无锡同春新能源科技有限公司 一种以风力发电为供电源的固沙剂喷洒拖车
CN102877458B (zh) * 2012-10-26 2014-08-13 无锡同春新能源科技有限公司 一种以太阳能电池为供电源的固沙拖车

Citations (4)

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DE2850344A1 (de) * 1978-11-20 1980-05-22 Reinhard Wirtgen Verfahren und vorrichtung zum abtragen und neubeschichten von strassendecken
FR2484664A1 (fr) * 1980-06-12 1981-12-18 Bec Freres Sa Procede, installations et engins mobiles pour melanger en continu des adjuvants a des materiau de remblai dans des proportions constantes
FR2536771A1 (fr) 1982-11-30 1984-06-01 Franex Installation pour l'alimentation volumetrique ou ponderale de materiaux, le dosage de produits pulverulents, de liants hydrauliques ou hydrocarbones, et leur malaxage pour realiser un melange destine a etre utilise pour l'amelioration et/ou la stabilisation des sols en travaux de terrassements, routes, aerodromes et barrages masses
FR2646186A1 (fr) * 1989-04-20 1990-10-26 Beugnet Sa Machine de traitement en place de materiaux, tels que des limons et des craies pour la construction d'une couche de fondation de chaussee notamment de chaussee d'autoroute

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DE1780166U (de) * 1958-04-02 1958-12-24 Rudolf Kalich Maschinenaggregat zur zusammenstellung, herstellung und foerderung von hydraulisch erhaertenden bindemittel-gemischen, insbesondere wasser-zement-gemischen.
DE1934316A1 (de) * 1969-07-07 1971-01-21 Krupp Gmbh Fertigbetonanlage
DD125880A1 (fr) * 1976-05-26 1977-06-01
FR2401005A1 (fr) * 1977-07-25 1979-03-23 Foucault Pierre Installation de fabrication en continu de coulis, mortier, ou betons
US4781466A (en) * 1986-05-23 1988-11-01 Zimmerman Harold M Method and apparatus for producing concrete
SU1608058A1 (ru) * 1987-07-27 1990-11-23 Государственный всесоюзный дорожный научно-исследовательский институт Передвижна установка дл приготовлени и подачи растворных смесей
CH674333A5 (en) * 1987-10-14 1990-05-31 Leo Spaini Ag Transportable concrete mixer - has conveyor to transport concrete which can be swung about horizontal and vertical axes
IT8819093A0 (it) * 1988-01-15 1988-01-15 Wirtgen Macchine Srl Procedimento di rigenerazione di un manto stradale in conglomerato bituminoso con applicazione a freddo del materialedi ricoprimento riciclato.
DE3809670A1 (de) * 1988-03-23 1989-10-12 Juergen Posch Geraet zum zerkleinern von material, insbesondere gestein sowie bau- und strassenbaumaterial
DE4303285A1 (de) * 1993-02-05 1994-08-11 Weiss Gmbh & Co Leonhard Verfahren zur tiefgründigen Bodenverfestigung und Einrichtung zur Durchführung

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2850344A1 (de) * 1978-11-20 1980-05-22 Reinhard Wirtgen Verfahren und vorrichtung zum abtragen und neubeschichten von strassendecken
FR2484664A1 (fr) * 1980-06-12 1981-12-18 Bec Freres Sa Procede, installations et engins mobiles pour melanger en continu des adjuvants a des materiau de remblai dans des proportions constantes
FR2536771A1 (fr) 1982-11-30 1984-06-01 Franex Installation pour l'alimentation volumetrique ou ponderale de materiaux, le dosage de produits pulverulents, de liants hydrauliques ou hydrocarbones, et leur malaxage pour realiser un melange destine a etre utilise pour l'amelioration et/ou la stabilisation des sols en travaux de terrassements, routes, aerodromes et barrages masses
FR2646186A1 (fr) * 1989-04-20 1990-10-26 Beugnet Sa Machine de traitement en place de materiaux, tels que des limons et des craies pour la construction d'une couche de fondation de chaussee notamment de chaussee d'autoroute

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1184518A4 (fr) * 1999-06-07 2004-10-06 Komatsu Mfg Co Ltd Engin mobile d'amelioration du sol
US6971783B2 (en) 2000-07-19 2005-12-06 Keanes Limited Recycled material and mixing machinery
WO2002072329A3 (fr) * 2001-03-09 2002-12-27 Juergen Schenk Procede et dispositif de preparation, notamment de deblais
US7182204B2 (en) 2001-03-09 2007-02-27 Schenk Juergen Treatment method and device, in particular for excavation material
WO2003008710A1 (fr) * 2001-07-19 2003-01-30 Keanes Ltd Machine melangeuse de materiaux recycles
US7178972B2 (en) * 2001-07-19 2007-02-20 Keanes Limited Recycled material mixing machine
CN100420792C (zh) * 2001-07-19 2008-09-24 基恩斯公司 用于材料再生的混合设备

Also Published As

Publication number Publication date
EP0675232B1 (fr) 1999-09-22
ATE184938T1 (de) 1999-10-15
ES2136220T3 (es) 1999-11-16
DE4409507A1 (de) 1995-09-21
DE59506868D1 (de) 1999-10-28

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