EP1555388B1 - Procédé d'extraction de sols - Google Patents

Procédé d'extraction de sols Download PDF

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Publication number
EP1555388B1
EP1555388B1 EP04000964A EP04000964A EP1555388B1 EP 1555388 B1 EP1555388 B1 EP 1555388B1 EP 04000964 A EP04000964 A EP 04000964A EP 04000964 A EP04000964 A EP 04000964A EP 1555388 B1 EP1555388 B1 EP 1555388B1
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EP
European Patent Office
Prior art keywords
atomised
soil
lance
application
atomizing lance
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.)
Expired - Lifetime
Application number
EP04000964A
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German (de)
English (en)
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EP1555388A1 (fr
Inventor
Wolfgang Müller
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.)
Hochtief AG
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Hochtief AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hochtief AG filed Critical Hochtief AG
Priority to DE502004003124T priority Critical patent/DE502004003124D1/de
Priority to AT04000964T priority patent/ATE356276T1/de
Priority to EP04000964A priority patent/EP1555388B1/fr
Publication of EP1555388A1 publication Critical patent/EP1555388A1/fr
Application granted granted Critical
Publication of EP1555388B1 publication Critical patent/EP1555388B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B44/00—Automatic control systems specially adapted for drilling operations, i.e. self-operating systems which function to carry out or modify a drilling operation without intervention of a human operator, e.g. computer-controlled drilling systems; Systems specially adapted for monitoring a plurality of drilling variables or conditions
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/88—Dredgers; Soil-shifting machines mechanically-driven with arrangements acting by a sucking or forcing effect, e.g. suction dredgers
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D1/00—Sinking shafts
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
    • E21D9/10—Making by using boring or cutting machines
    • E21D9/1066—Making by using boring or cutting machines with fluid jets

Definitions

  • the invention relates to a method for the degradation of soils, in particular of stable cohesive soils.
  • Stable or cohesive soils means especially soils with a relatively high marl content, for example, with a marl content of 20 wt .-% and more.
  • the degradation of the soil with the method according to the invention is particularly suitable for lowering a caisson or Caissons in the pit generated by soil degradation.
  • the degradation of stable cohesive soils is done in practice in mechanical degradation.
  • electro-hydraulically operated mining equipment or agitators are used for the degradation of stable soil.
  • This method known for stable floors has the disadvantage that the degradation rate is only about 10% compared to the degradation rate in the case of the flush floor washing method.
  • Due to the pressure load is basically the permissible length of stay of the staff in the working chamber, in which the loosening and discharge of the soil takes place, for health reasons limited to the compressed air regulation. Therefore, in the known method with high manual effort relatively much staff must be kept on the site.
  • the costs of lowering the caisson are mainly determined by the factors personnel, equipment provision and energy consumption. A low lowering speed of the caisson is therefore of equal importance with relatively high costs for the construction measures.
  • the invention is based on the technical problem of specifying a method for the degradation of soils, in particular of stable cohesive soils, with which a largely automatic and effective and reliable soil degradation is possible and in which the disadvantages listed above can be avoided.
  • the invention teaches a method for the degradation of soils, especially of stable cohesive soils, wherein an atomizing lance rotating about its longitudinal axis is driven into the ground up to a drilling start point and the fluidizing lance injects a fluid medium under high pressure to loosen the soil into the soil, wherein the loosened soil is carried away by at least one pump and wherein the atomizing lance is pulled out of the ground with the formation of an excavation space freed from the ground, wherein the extent of a Aufdüsraumes is determined and wherein, depending on the extent of Aufdüsraumes a grid of drill points is set with the proviso that adjacent Aufdüsschreib produced with this extension adjacent to each other or overlap and wherein the Bohransatzdisposed the grid are successively approached automatically by the Aufdüslanze.
  • the Bohransatzina the grid by means of a control and / or regulating device are automatically approached by the Aufdüslanze.
  • the adjacent AufdüsLite adjacent to each other means according to an embodiment of the invention that the adjacent Maudüsbank directly, ie adjoin one another without space.
  • the adjoining Aufdüsschreib adjacent to each other means according to another embodiment of the invention but also that between adjacent Trodüshunt narrow webs or walls can remain out of soil, which coincide as it were after the creation of two adjacent Aufdüsschreib.
  • the Aufdüsschreib are in any case arranged to each other so that after completion of the specified grid a complete soil layer is mined.
  • the invention is based on the finding that first Bohransatza are set to which the Aufdüslanze is driven in each case. It is understood that the raster of the drill points is located in a certain limited space to be cleared of the soil. It is within the scope of the invention that the Bohransatza lie in a manhole to be lowered into a caisson (Caisson). After the drill points are set they are approached successively or in a specific sequence by the injection lance. It is expediently adjusted automatically with the help of the control and / or regulating device, the position, the inclination and the Bohrvorschub the atomizing lance.
  • the rotational speed of the rotating about its longitudinal axis lance and / or the pressure or the amount of injected fluid medium and / or the pump power or the amount of Tarzu affiliatednden in the unit time soil and / or the drawing speed of the pouring lance is set.
  • This adjustment is expediently made with regard to the desired extent or with regard to the desired diameter of the Aufdüsraumes.
  • sensors are provided for the position detection of Aufdüslanze, which sensors are suitably connected to the control and / or regulating device.
  • the position and / or the inclination and / or the drilling feed of the atomizing lance and / or the drawing speed of the atomizing lance are preferably set.
  • the drill points for the area in which the soil is to be removed are manually entered into the control and / or regulating device. It is within the scope of the invention that the order of the drilling starting points to be approached successively by the atomizing lance is also entered into the control and / or regulating device.
  • the drill points for the area where the soil is to be mined are automatically calculated by the control and / or regulating device. For this calculation, parameters are preferably entered into the control and / or regulating device, which relate in particular to the size and extent of the region in which the soil is to be mined. Depending on the calculated Bohransatzddlingen is then automatically set the position and the inclination of Aufdüslanze for each to be approached Bohransatzddling using the control and / or regulating device.
  • the injected fluid medium consists of at least one liquid which is injected under high pressure.
  • This liquid is expediently water.
  • at least one gas is injected under pressure, preferably compressed air.
  • the combination of liquid and compressed air effectively cuts the soil and effectively loosens the soil.
  • water is injected under high pressure up to 450 bar in the soil and supportive compressed air at a pressure of 6 to 12 bar, preferably 8 to 10 bar injected into the soil.
  • This injection of the fluid medium under high pressure produces a soil / fluid mixture which can be conveyed away with the aid of at least one pump.
  • Soil here means above all a mixture consisting mainly of sand and marl.
  • the least an opening of the atomizing lance for injecting liquid or for injecting compressed air is expediently in the region of the lance end which is advanced into the ground.
  • the atomizing lance for starting a certain Bohransatziss of the grid is automatically moved in an orbit in the Bohransatzddling associated position on the orbit.
  • the Aufdüslanze is initially positioned in a base position.
  • This automatic positioning of the pouring lance takes place with the aid of the control and / or regulating device.
  • at least one sensor is provided which serves to detect the position of the Aufdüslanze on the orbit and which is connected to the control and / or regulating device. With the sensor signals are transmitted to the control and / or regulating device, which provide information about the current position of the Aufdüslanze on the orbit.
  • the Aufdüslanze is automatically moved by means of the control and / or regulating device by a corresponding angle on the orbit, preferably on a circular path.
  • the atomizing lance is moved in this circular path in the Bohransatzddling associated position.
  • the fact that the atomizing lance is moved on a circular path does not mean that the atomizing lance is only moved continuously along the circular path and only in one direction along the circular path.
  • the atomizing lance can namely be moved on circular path sections and can be moved back and forth on the circular path become.
  • the atomizing lance is attached to the realization of a circular path movement on the edge of a rotatable disc.
  • the rotatable disc is expediently a steel disc.
  • the diameter or the radius of the disc determines and defines the circular path movement of the atomizing lance.
  • the rotary drive of the rotatable disc is preferably carried out hydraulically.
  • an inclination angle of the Aufdüslanze with respect to a vertical axis is set automatically. If, according to a very preferred embodiment of the invention, the atomizing lance is moved on a circular path, then the vertical axis extends through the circle center of this circular path. Preferably, after the base positioning of the atomizing lance on the orbit or circular path, the atomizing lance is positioned with respect to its inclination. In principle, however, it is also within the scope of the invention to first adjust the inclination or inclination angle of the atomizing lance and then to move the atomizing lance into its base position on its orbit or circular path.
  • the adjustment or activation of the lance inclination preferably takes place hydraulically, preferably via a hydraulic cylinder.
  • an inclination angle between 0 ° and 45 ° with respect to the vertical axis can be set for the atomizing lance.
  • the atomizing lance is arranged parallel to the vertical axis or arranged vertically.
  • the automatic adjustment of the angle of inclination with the help the control and / or regulating device takes place.
  • at least one sensor for detecting the inclination position of the atomizing lance is provided, which sensor is expediently connected to the control and / or regulating device.
  • the sensor provides signals to the control and / or regulating device which indicate the current inclination position of the atomizing lance.
  • the atomizing lance is automatically moved by means of the control and / or regulating device by a corresponding angle over the orbit and circular path and it is automatically set a corresponding, the Bohransatz Vietnamese associated inclination angle.
  • the method initially takes place via the orbit or circular path and then the adjustment of the angle of inclination.
  • the inclination angle can also be set first, or else the angle of inclination can be set during the movement of the atomizing lance on the orbit.
  • an advancement of the atomizing lance to the targeted drilling starting point takes place.
  • This feed of Aufdüslanze along its longitudinal axis is preferably carried out hydraulically. It is within the scope of the invention that the atomizing lance rotates about its longitudinal axis during its feed to the Bohransatzddling.
  • at least one sensor is provided which detects the feed position or the depth position of the atomizing lance or Aufdüslanzenendes. Conveniently, this sensor is connected to the control and / or regulating device and transmits signals to the control and / or regulating device, which indicate the current feed position of the pouring lance.
  • the expansion of an opening space reached at certain control parameters set for the atomizing lance, which remains from the floor when the atomizing lance is withdrawn, is determined.
  • control parameter for the discharge lance is defined more concretely below.
  • the expansion of the Aufdüsraumes means in particular the diameter or the average diameter of a resulting when pulling the atomizing lance Aufdüsklale.
  • the Aufdüsklale is usually formed like a cylinder.
  • first of all a test borehole is carried out in order to determine the expansion or the diameter of a topping-up area or a down-flow column, which is achieved under certain predetermined control parameters for the atomizing lance.
  • the area of impact of the atomizing lance is first determined in a first sampling column when certain control parameters are realized.
  • the expansion of a resulting Aufdüsraumes but also under specification of the soil properties and under specification of the control parameters can be calculated. Such a calculation is expediently carried out with the aid of a microcomputer, which is part of the control and / or regulating device.
  • the rotational speed of the atomizing lance rotating about its longitudinal axis and / or the pulling speed of the atomizing lance to be pulled out of the ground and / or the delivery rate the soil removing pump is adjusted in accordance with the extent of the Frieddüsraumes to be produced.
  • the adjustment of the aforementioned control parameters takes place automatically according to a preferred embodiment of the invention.
  • the Tardüsraumes or a Aufdüsklas the Aufdüslanze is pulled away from the Bohransatzddling up and while the Aufdüslanze expediently rotates about its longitudinal axis.
  • the pumping of the resulting soil / liquid mixture or soil / water mixture is carried out by at least one pump, which is positioned accordingly.
  • the positioning of the pump takes place automatically and with the help of the control and / or regulating device.
  • a very preferred embodiment of the method according to the invention is characterized in that in the region of a Bohransatz developmentals or in the region of the resulting Aufdüsraumes a visual degradation control of the soil is performed and that, depending on this degradation control, if necessary, at least one control parameter for the atomizing lance is changed.
  • the visual degradation control is expediently carried out with the aid of a video camera.
  • control parameter for the atomizing lance is the rotational speed of the atomizing lance rotating about its longitudinal axis and / or the pressure or the quantity of the injected fluid medium, in particular the pressure or the amount of injected water and / or the pressure or the quantity the injected compressed air and / or the pulling speed of the atomizing lance and / or the pump power, ie in particular the amount of the conveyed soil / water mixture in the unit time.
  • Control parameter for the atomizing lance also means the angle of inclination of the atomizing lance to be set and / or the base position of the atomizing lance to be set on the orbit or circular path.
  • the feed rate of the atomizing lance to Bohransatz Vietnamese is a control parameter for the Aufdüslanze. As far as above and below of control parameters is mentioned, the above-mentioned parameters are meant.
  • the amount of soil conveyed away is measured and, depending on this measured amount, if necessary, at least one control parameter for the atomizing lance is varied.
  • the volume flow of the discharged soil / liquid mixture or soil / water mixture is measured. It is also preferable to measure the amount of the pressurized fluid.
  • a mass balance can be obtained, in which the amount of the supplied fluid medium or the amount of injected water can be set in relation to the amount of the discharged earth or to the amount of the conveyed soil / liquid mixture.
  • at least one control parameter for the atomizing lance is varied, and preferably varies automatically with the aid of the control and / or regulating device.
  • a caisson (caisson) is gradually lowered in the resulting by promoting the soil shaft.
  • the side walls this caisson advantageously have on the bottom side cutting, which facilitate penetration into the ground.
  • Bohranthesis be provided in the region of the cutting of the side walls of the caisson. In this way, a very reliable and effective lowering of the caisson can be realized.
  • the number and arrangement of the drill points is selected depending on the cross section or floor plan of the caisson.
  • the lowering of the caisson is metrologically controlled and, depending on the measurement results obtained, at least one control parameter for the atomizing lance is changed if necessary, and advantageously automatically with the help of the control and / or regulating device.
  • the lowering of the caisson preferably also takes place automatically with the help of the control and / or regulating device.
  • the position of the caisson is checked.
  • the caisson should not stand in particular wrong.
  • the one or more control parameters for the Aufdüslanze are thus suitably adjusted so that a possible vertical lowering of the caisson is guaranteed.
  • At least one measuring sensor is provided with which the lowering operation or the position of the caisson is checked.
  • the measuring sensor is expediently connected to the control and / or regulating device and transmits signals which provide information about the position of the caisson. These signals are evaluated in the control and / or regulating device and, if necessary, becomes depending on this evaluation, at least one control parameter for the atomizing lance changed.
  • a layered removal of soil layers is realized with the method according to the invention.
  • drill points are initially selected at a first depth of soil and the soil existing above these drill points is reduced by successive start-up of the drill points with the aid of the injection nozzle.
  • Bohransatz be set in a second floor depth and it will proceed accordingly also with respect to this second floor depth, so that the second soil layer is removed. In this way, several layers of soil can be removed one after the other.
  • the invention is based on the finding that with the method according to the invention a very effective and rapid soil degradation, in particular of stable cohesive soils in the rinsing process can be carried out automatically and that either semi-automatically or according to a preferred embodiment fully automatic.
  • the invention is based in this connection on the knowledge that the starting point for the process control is a previously defined grid of drill points or of corresponding lance positions. The lance guidance and lance movement is then automatically controlled as a function of various parameters with regard to effective soil removal. Compared with the measures known from the prior art, a considerable increase in efficiency is achieved.
  • the inventive method is characterized Compared to these measures known from the prior art by a relatively advantageous energy balance and is characterized by low effort in terms of personnel and material. In particular, the work of compressed air personnel can be kept to a minimum and therefore a significant contribution to the improvement of working conditions at the relevant workplaces is made.
  • the apparatus for carrying out the method according to the invention for the degradation of soils is shown.
  • the device is used to produce a shaft 16 for the gradual lowering of a caisson 1.
  • the apparatus comprises a chamber 2, wherein the chamber 2 is divided into a pressure chamber 3 and a working chamber 4 arranged thereunder.
  • a rotating about its longitudinal axis Aufdüslanze 5 is provided, which is driven in the bottom 6.
  • Each Aufdüslanze 5 has at least one opening, not shown, from which a fluid medium is ejected or injected under high pressure to loosen the soil in the ground.
  • water is injected under high pressure and supportive compressed air.
  • An atomizing lance 5 is movable on a circular path about the vertical axis 7. To realize this orbit movement, the atomizing lance 5 is attached to the edge of a rotatable disc 8. By rotation of this disc 8, the orbit movement of the atomizing lance 5 is realized.
  • the atomizing lance 5 is guided on a tiltable carriage 9, which is provided in the pressure chamber 3 and the Aufdüslanze 5 is pivotally mounted on the rotatable disc 8. In this way, different inclination angle ⁇ between the atomizing lance 5 and the vertical axis 7 can be adjusted. Due to the possible variations in the position of the atomizing lance 5, a very effective and complete removal of the bottom 6 can be achieved.
  • another possible position of the atomizing lance 5 was indicated in FIG.
  • the Aufdüslanze 5 can be acted upon by a pressure medium, which is expediently introduced with a high pressure pump water and in addition to compressed air. Due to the injected under high pressure into the soil liquid soil is loosened and thus to an eligible soil / water mixture, which can be removed by a pump 11 via a feed line 12.
  • the rotatable disk 8 has a closable manhole 13.
  • material locks 14 and a personal lock 15 are shown.
  • FIGS. 2 to 4 show an embodiment according to FIG. 1, in which a chamber 2 and an atomizing lance 5 are provided in the shaft 16.
  • the order of approaching Bohransatza 17 is marked with small letters a to 1.
  • a corresponds to the drill start point 17 which is approached first, ie in the area of which the first upflow column 18 is generated and 1 corresponds to the drill start point 17 which is approached last.
  • the extent or the diameter of Aufdüsklalen 18 has been indicated by dashed lines. At each of the tips of the dash-dotted arrows there is a drill point 17 (a to 1).
  • the Aufdüsklasklalen 18 can be seen in section.
  • At least one sensor is provided, with which the position of Aufdüslanze 5 can be determined on the circular path and transmitted to the control and / or regulating device.
  • the inclination of the atomizing lance 5 to the vertical axis 7 and thus the inclination angle ⁇ is set.
  • at least one sensor is provided which detects the inclination position of the atomizing lance 5 and transmits it to the control and / or regulating device.
  • the Aufdüslanze 5 is advanced to the associated Bohransatzddling 17 or a.
  • the atomizing lance 5 rotates about its longitudinal axis.
  • the atomizing lance 5 is pulled out of the bottom 6 again, wherein the fluid medium is injected under high pressure into the soil.
  • the thus loosened soil is discharged with at least one pump 11. It is within the scope of the invention that this loosening or discharge of the soil is monitored visually using a video camera.
  • the amount or pressure of the injected fluid medium measured and measured in addition the amount of the discharged earth or the discharged soil / water mixture. In this way, a mass balance can be determined, which can be optimized by adjusting the control parameter for the atomizing lance 5.
  • At least one further, not shown, sensor is provided, with which the lowering or the position of the caisson 1 is controlled.
  • This sensor is also connected to the control and / or regulating device. If it is determined that the caisson 1 is not optimally lowered or not vertically, control parameters for the Aufdüslanze 5 can be changed automatically with the help of the control and / or regulating device in order to optimize the lowering of the caisson 1. As a result, the method according to the invention works at least largely automatically and thus a rapid and effective lowering of a caisson 1 can be realized.
  • the device according to the invention has two chambers 2 which are each divided into a pressure chamber 3 and a working chamber 4 arranged below it.

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  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Geochemistry & Mineralogy (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Physics & Mathematics (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Processing Of Solid Wastes (AREA)
  • Nozzles (AREA)
  • Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
  • Compounds Of Unknown Constitution (AREA)

Claims (8)

  1. Procédé d'extraction de sols, notamment de sols consistants cohésifs,
    dans lequel une lance d'injection (5) en rotation autour de son axe longitudinal est avancée dans le sol (6) jusqu'à un point d'emplacement du trou de sonde (17) et un fluide est injecté dans le sol (6) sous haute pression au moyen de la lance d'injection (5) pour ameublir la terre, la terre ameublie étant extraite au moyen d'au moins une pompe (11) et la lance d'injection (5) étant retirée du sol (6) en formant un espace d'injection libéré de terre,
    dans lequel l'élargissement de l'espace d'injection est calculé et un réseau de points d'emplacement du trou de sonde (17) est déterminé, en fonction de l'élargissement de l'espace d'injection, de façon à ce que les espaces d'injection voisins, produits par cet élargissement, soient adjacents les uns aux autres ou se chevauchent, et dans lequel les points d'emplacement du trou de sonde (17) du réseau sont approchés automatiquement l'un après l'autre par la lance d'injection (5).
  2. Procédé selon la revendication 1, dans lequel, pour approcher un point d'emplacement du trou de sonde (17) du réseau, la lance d'injection (5) est déplacée automatiquement sur une orbite dans une position associée au point d'emplacement du trou de sonde (17).
  3. Procédé selon l'une des revendications 1 ou 2, dans lequel, pour approcher un point d'emplacement du trou de sonde (17), un angle d'inclinaison α de la lance d'injection (5) est réglé automatiquement par rapport à un axe vertical (7).
  4. Procédé selon l'une quelconque des revendications 1 à 3, dans lequel la vitesse de rotation de la lance d'injection (5) autour de son axe longitudinal et/ou la vitesse d'extraction de la lance d'injection (5) à retirer du sol (6) et/ou le débit de la pompe (11) extrayant la terre sont réglés conformément à l'élargissement de l'espace d'injection devant être produit.
  5. Procédé selon l'une quelconque des revendications 1 à 4, dans lequel un contrôle visuel d'extraction a lieu dans la partie d'un point d'emplacement du trou de sonde (17) ou dans la partie de l'espace d'injection en formation et dans lequel, conformément à ce contrôle d'extraction, au moins un paramètre de commande de la lance d'injection (5) est modifié en cas de besoin.
  6. Procédé selon l'une quelconque des revendications 1 à 5, dans lequel la quantité de terre extraite est mesurée et, en fonction de la quantité mesurée, au moins un paramètre de commande de la lance d'injection (5) est modifié en cas de besoin.
  7. Procédé selon l'une quelconque des revendications 1 à 6, dans lequel un caisson immergé (1) est descendu dans le puits (16) créé par extraction de la terre.
  8. Procédé selon la revendication 7, dans lequel l'opération de descente du caisson immergé (1) est contrôlée par des techniques de mesure et dans lequel, en fonction des résultats de mesure, au moins un paramètre de commande de la lance d'injection (5) est modifié en cas de besoin.
EP04000964A 2004-01-19 2004-01-19 Procédé d'extraction de sols Expired - Lifetime EP1555388B1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE502004003124T DE502004003124D1 (de) 2004-01-19 2004-01-19 Verfahren zum Abbau von Böden
AT04000964T ATE356276T1 (de) 2004-01-19 2004-01-19 Verfahren zum abbau von böden
EP04000964A EP1555388B1 (fr) 2004-01-19 2004-01-19 Procédé d'extraction de sols

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP04000964A EP1555388B1 (fr) 2004-01-19 2004-01-19 Procédé d'extraction de sols

Publications (2)

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EP1555388A1 EP1555388A1 (fr) 2005-07-20
EP1555388B1 true EP1555388B1 (fr) 2007-03-07

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EP04000964A Expired - Lifetime EP1555388B1 (fr) 2004-01-19 2004-01-19 Procédé d'extraction de sols

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EP (1) EP1555388B1 (fr)
AT (1) ATE356276T1 (fr)
DE (1) DE502004003124D1 (fr)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US538073A (en) * 1895-04-23 Robert l
JPS5079927A (fr) * 1973-11-09 1975-06-28
JPH0489925A (ja) * 1990-07-31 1992-03-24 Maeda Corp 地下構造物の沈設工法
JP3217038B2 (ja) * 1998-12-28 2001-10-09 日工建設株式会社 地盤掘下げ装置および筒状地下構造体の形成法
DE10233019B4 (de) * 2002-07-20 2004-09-16 Hochtief Ag Verfahren zum Abbau von Böden und Vorrichtung zur Durchführung des Verfahrens

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EP1555388A1 (fr) 2005-07-20
DE502004003124D1 (de) 2007-04-19
ATE356276T1 (de) 2007-03-15

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