EP3530813B1 - Procédé de mesure de profondeur du tubage dans une fondation sur pilotis ainsi qu'appareil rapporté pour la fondation sur pilotis - Google Patents

Procédé de mesure de profondeur du tubage dans une fondation sur pilotis ainsi qu'appareil rapporté pour la fondation sur pilotis Download PDF

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Publication number
EP3530813B1
EP3530813B1 EP19158770.8A EP19158770A EP3530813B1 EP 3530813 B1 EP3530813 B1 EP 3530813B1 EP 19158770 A EP19158770 A EP 19158770A EP 3530813 B1 EP3530813 B1 EP 3530813B1
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EP
European Patent Office
Prior art keywords
casing
depth
attachment
pipe
pile foundation
Prior art date
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Application number
EP19158770.8A
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German (de)
English (en)
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EP3530813A1 (fr
Inventor
Patrick Jussel
Nicola Schlatter
Maximilian Mendler
Sebastian Wedl
Armin Englstler
Bernhard Schneider
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Liebherr Werk Nenzing GmbH
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Liebherr Werk Nenzing GmbH
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Publication date
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Publication of EP3530813A1 publication Critical patent/EP3530813A1/fr
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Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D13/00—Accessories for placing or removing piles or bulkheads, e.g. noise attenuating chambers
    • E02D13/06—Accessories for placing or removing piles or bulkheads, e.g. noise attenuating chambers for observation while placing
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D7/00—Methods or apparatus for placing sheet pile bulkheads, piles, mouldpipes, or other moulds
    • E02D7/28—Placing of hollow pipes or mould pipes by means arranged inside the piles or pipes
    • 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
    • E21B3/00—Rotary drilling
    • E21B3/02—Surface drives for rotary drilling
    • E21B3/025—Surface drives for rotary drilling with a to-and-fro rotation of the tool
    • 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
    • E21B3/00—Rotary drilling
    • E21B3/02—Surface drives for rotary drilling
    • E21B3/03—Surface drives for rotary drilling with an intermittent unidirectional rotation of the tool

Definitions

  • the invention relates to a method for depth measurement of the piping in the pile foundation with an attachment comprising a table for clamping a pipe, as described in the publication EP 3 081 737 A is removable. Furthermore, the presented invention comprises an attachment for a carrier machine, as it is basically from the JP2002 / 021076 A is known.
  • the casing depth reached ie the penetration depth of the clamped pipe, must be checked from time to time. At present, this task is essentially achieved by the operator of the casing machine and the driver of the rope excavator.
  • the length of the installed pipes is noted and the depth of the piping is calculated in connection with the estimated height of the upper edge of the pipe.
  • the depth of the piping is obtained by subtracting the height of the upper edge of the pipe from the length of the piping. If a more precise value is required, the casing machine must be stopped and the height of the upper edge of the pipe measured manually by the operator.
  • the disadvantage of the known method is that the depth cannot be measured and monitored continuously, but instead only a rough estimate is possible during the raw operation.
  • the casing machine must instead be stopped to allow a person access to the hazardous area on the pipe for manual measurement.
  • a method for depth measurement of the piping in the pile foundation is proposed for a specific attachment which has at least one table for clamping a pipe.
  • the pipe is firmly clamped to the table, advantageously clamped.
  • the attachment itself is mounted on a suitable carrier machine, such as a cable excavator or a drilling rig.
  • the table is used to fix and align the pipe and to generate a rotating movement of the pipe in order to screw it into the ground. As the penetration depth of the pipe into the ground progresses, the table of the attachment also drops continuously.
  • the method according to the invention makes use of this construction-related vertical movement of the table for the detection of the current casing depth.
  • the vertical movement of the machine table is recorded by sensors.
  • the vertical movement of the table can be measured directly by means of suitable sensors which, for example, are attached directly to the table or to components of the attachment that move with the table.
  • suitable sensors which, for example, are attached directly to the table or to components of the attachment that move with the table.
  • the attachment comprises at least one handlebar which is articulated on the one hand to the machine table and on the other hand is articulated to a stationary element of the attachment.
  • stationary means stationary relative to the table movement during the introduction of the pipe.
  • a vertical movement of the table consequently also leads to a movement of the handlebar.
  • Suitable sensors can be arranged on or in the area of the handlebar.
  • the handlebar can change its angle of inclination relative to the horizontal due to the design. It is possible to pick up this change in angle by sensors in order to be able to make a statement about the vertical movement of the table from it.
  • the movement of the handlebar can be detected by means of an inclination sensor or angle encoder installed on the handlebar.
  • the attachment usually comprises at least one steering actuator, in particular a steering cylinder, for actuating the handlebar. Under certain circumstances, the actuator status can also be helpful for determining the position of the steering rod or deriving the table movement.
  • the current vertical position of the table can be derived taking into account the geometric structure of the attachment.
  • the resulting vertical movement then preferably results from the temporal change in the vertical table position during the piping for the pile foundation.
  • the table While the piping is being installed, the table continues to descend close to the floor. It is therefore necessary from time to time to loosen the clamping and move the table upwards again along the pipe in order to clamp the pipe to the table with a higher pipe area.
  • the condition of the clamping of the pipe is checked, preferably checked continuously. According to the invention, only those vertical movements of the machine table during which a fixed clamping of the pipe in the machine table has been recognized are taken into account for the calculation of the casing depth.
  • the piping can be clamped to the table by means of a clamping mechanism.
  • a clamping mechanism for this purpose, one or more clamping actuators or clamping cylinders, which are actuated hydraulically or pneumatically, are provided in the machine table.
  • the pressure within the clamping actuators can then be observed, for example by means of one or more pressure sensors installed in the actuators.
  • the current piping depth or any determined sensor data of the attachment can be transmitted to at least one external device via a communication interface of the attachment. It is of particular importance to transmit this data to the carrier machine, i.e. the cable excavator. It is also possible to transfer the data to an external server, from which the data can be called up via a mobile device, for example, so that, in addition to the operators of the carrier machine or the attachment, a construction site manager or other person has access to the process data.
  • a continuous measurement of the casing depth is particularly advantageous if this is displayed for the operator on a display element of the attachment and / or an external machine.
  • the operator of the attachment or the carrier machine can call up valuable information about the currently reached casing depth at any time, which is of particular importance when the borehole is excavated in parallel by the carrier machine, for example by means of a gripper.
  • tubing only slightly rushes ahead of the gripper of the carrier machine in order to keep the casing friction of the tubing low and consequently to keep the stress on the equipment and the energy required for creating the bored pile low.
  • the operator or operator of the carrier machine in particular in the form of a rope excavator, it is therefore of particular importance to always be informed about the currently reached casing depth.
  • the remaining remaining length of the clamped pipe ie the pipe length, which is still outside the ground, is calculated.
  • the pipe length which is still outside the ground
  • the current casing depth can be compared with the digging progress of the duty cycle crawler crane and to suspend the pile foundation by the attachment if the protrusion of the casing depth is above a tolerance value.
  • the digging progress can be called up via an interface from the carrier machine, for example.
  • the current excavation depth can be determined by measuring the length of the rope and made available to the attachment.
  • a prediction with regard to the completion of the pile can be made through the continuous monitoring of the casing depth.
  • the subsequent process steps of the pile foundation can be better coordinated by predicting the time of completion or the remaining operating time that is as precise as possible.
  • the timely delivery of the concrete is an example.
  • An improvement in the prediction can be achieved by additionally taking into account available soil profiles, because the soil composition has a significant share on the achievable feed rate during the piping. Soil profiles can either be entered manually into the machine and stored there, but they can also be generated automatically on the basis of empirical values, for example from previous pile foundations in the immediate vicinity.
  • the present invention also relates to an attachment for a carrier machine, in particular a cable excavator or a drilling device, for pile foundation with a table for clamping a pipe and at least one integrated computer unit that carries a program that enables a method according to claim 1 can be executed.
  • a carrier machine in particular a cable excavator or a drilling device
  • the attachment is characterized by the same advantages and properties as were already described above with reference to the method according to the invention. For this reason, a repetitive description is dispensed with.
  • the cable excavator 1 takes over the digging of a hole with a rotatable superstructure, a boom 2 and a gripper 3.
  • a mounted on the dragline excavators is a casing machine, consisting of a bottom plate 201 and a relative to the base plate at a distance adjustable table 301.
  • this casing oscillator 100 may be as follows driven into the ground, a casing: the table 301 is, for example, by means of a clamping cylinder with the casing 100 locked. The base plate 201 is then raised, as a result of which the weight of the piping 100, the table 301 and the base plate 201 acts downwards. In order to overcome the static friction, the table 301 is set in motion in a further step, for example in horizontal oscillations (so-called casing machines) or also in continuous rotation (so-called pipe lathes). As a result of this interaction, the casing 100 sinks into the ground while the cable excavator 1 dredges the earth within the casing 100.
  • the table 301 is, for example, by means of a clamping cylinder with the casing 100 locked.
  • the base plate 201 is then raised, as a result of which the weight of the piping 100, the table 301 and the base plate 201 acts downwards.
  • the table 301 is set in motion in a further step
  • the casing machine is in the Figures 2a, 2b showing the casing machine with casing (100) in a side and plan view.
  • the table 301 can be clamped to the pipe 100 by means of clamps, for example.
  • the base plate 201 can be raised between the connection points 211/311 and 212/312 via lifting cylinders.
  • the table 301 can execute rotary movements with respect to the base plate 201.
  • a rigid steering rod is articulated on the one hand at point 321 on the table 301 and on the other hand articulated on the element 401 at point 421.
  • the inclination of the tubing 100 around the y-axis can be adjusted of the piping 100 can be adjusted about the x-axis.
  • the pivot points 413, 414 and 421 can be displaced horizontally by means of a guide 401 with respect to the structure 202 which is fixedly connected to the table 201.
  • the depth of the casing 100 indicates how far below the top of the casing 100 is, and the hole depth indicates how deep the excavator 1 with its tool 3 (for example the gripper on a cable excavator) the material has removed from the casing 100.
  • a bored pile of a certain depth and diameter is commissioned to meet the requirements of the statics.
  • the depth of the casing 100 it is generally necessary for the depth of the casing 100 to be ahead of the hole depth in order to prevent loosening of the soil below the pipes 100.
  • the tubing 100 rushes ahead of the gripper 3 only to a small extent in order to keep the skin friction of the tubing 100 low and consequently to keep the stress on the equipment and the energy required for creating the bored pile low.
  • the driver of the excavator 1 or the drilling device knows the current depth of the borehole or of the excavation via rope length measurements or the like.
  • the depth of the casing 100 has so far had to be estimated.
  • the central element of an automated measurement of the casing depth according to the method according to the invention is the sensor 502, which measures the vertical movements of the table 301.
  • the sensor 502 can be an inclination sensor or an angle sensor.
  • the vertical position of the table 301 can then be derived from the geometry of the casing machine and the vertical movement of the table 301 can be determined from the changes in the vertical table position over time.
  • a sensor is also useful which determines whether the table 301 is jammed with the pipe 100 or whether the table 301 can move freely along the pipe 100. This can be done, for example, by a pressure sensor in a clamping cylinder.
  • the drilling progress can subsequently be converted into a "vertical depth" if a sloping pile is currently being constructed with the casing 100 inclined relative to the vertical.
  • a rope excavator 1 drives with attached VRM to a point at which a pile is established by means of piping 100.
  • the cable excavator 1 lifts the first section 100 of the piping into the VRM and roughly aligns the vertical position of the piping 100 by means of a rope.
  • the table 301 is clamped relative to the pipe section 100 by means of hydraulics.
  • the pipe 100 is placed in the x and y directions by means of differential GPS and the inclination of the casing 100 is set.
  • the base plate 201 of the VRM is now set down and the depth measurement is set to zero.
  • the screwing-in process now begins: the two lifting cylinders raise the base plate 201, the two oscillating cylinders set the table 301 in rotary movements, the weight of the piping 100 plus the additional weight of the table 301 and the base plate 201 press the pipe 100 into the ground.
  • the drilling table 301 lowers and the change in the drilling table height is recorded.
  • the jamming of the drilling table 301 with the tubing 100 is released.
  • the recording of the change in the vertical drilling table position is now paused.
  • the drilling table 301 is raised and then the drilling table 301 is clamped again with the casing 100.
  • the recording of the change in the vertical drilling table position (casing depth) is continued.
  • the current casing depth is transmitted to the operator information system for display.
  • a pipe section 100 with a length of 5 m is located in the VRM.
  • the length of the pipe section 100 was recorded by the rope excavator 1 or was entered manually by the driver into the control system and forwarded to the control system of the VRM.
  • the current depth of the lower edge of the pipe is 3 m, which results in the height above the floor of the upper edge of the pipe as 2 m.
  • the VRM recognizes that the maximum table height for the next stroke can only be 1.5 m.
  • the VRM recognizes that it is no longer possible to continue the piping work, since otherwise the table 301 would move over the upper edge of the pipe and stops the process.
  • another pipe section 100 with a length of 4 m is attached to the first pipe section 100 and the length of the pipe section 100 is communicated to the control system of the VRM.
  • the VRM will activate and continue the piping process.
  • the VRM selects a table height above the connection point of the two pipe sections 100.
  • the pile is concreted.
  • the tubing 100 is pulled out of the hole.
  • the lengths of the pipe sections are stored in the control system of the VRM.
  • the VRM ensures that the piping is not clamped at the connection points of the pipe sections 100 by the clamping mechanism on the table 301 or the fall protection device.

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  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Paleontology (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Civil Engineering (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Earth Drilling (AREA)
  • Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)

Claims (12)

  1. Procédé de mesure de profondeur du tubage dans une fondation sur pieux avec un appareil rapporté pour un engin porteur (1) comprenant une table (301) destinée au maintien d'un tube (100), dans lequel
    le déplacement vertical de la table (301) est détecté indirectement ou directement par capteur et totalisé pour calculer la profondeur de tubage actuelle,
    caractérisé en ce que
    pour déterminer le déplacement vertical de la table (301), le déplacement et/ou la position d'une barre directrice, qui est reliée d'un côté de manière articulée à la table (301) et de l'autre côté à une partie fixe (401) de l'appareil rapporté, est détecté(e) et
    un déplacement vertical de la table (301) est pris en compte pour le calcul de la profondeur de tubage uniquement quand le tubage (100) est maintenu fermement dans la table (301).
  2. Procédé selon la revendication 1, caractérisé en ce que l'angle d'inclinaison de la barre directrice est détecté, en particulier au moyen d'au moins un capteur d'inclinaison et/ou capteur angulaire (502) monté sur ou adjacent à la barre directrice.
  3. Procédé selon la revendication 1 ou 2, caractérisé en ce que la position verticale actuelle de la table (301) est dérivée à partir de l'angle d'inclinaison détecté en prenant en compte la géométrie de l'appareil rapporté.
  4. Procédé selon la revendication 3, caractérisé en ce que le déplacement vertical de la table (301) est déterminé pendant le processus de fondation sur pieux par la variation dans le temps de la position verticale de la table.
  5. Procédé selon l'une des revendications précédentes, caractérisé en ce que le maintien du tubage (100) à l'intérieur de la table (301) est vérifié au moyen d'un ou de plusieurs capteurs de pression disposés à l'intérieur du système de serrage.
  6. Procédé selon l'une des revendications précédentes, caractérisé en ce que l'inclinaison de la table par rapport à l'horizontale est détectée et est prise en compte pour le calcul de la profondeur de tubage, en particulier lors de l'édification d'un pieu incliné.
  7. Procédé selon l'une des revendications précédentes, caractérisé en ce que la profondeur de tubage et/ou les données de capteur déterminées sont transmises à un appareil externe, en particulier l'engin porteur (1) ou un serveur externe, par le biais d'une interface de communication de l'appareil rapporté et/ou sont affichées sur un élément d'affichage de l'appareil rapporté et/ou d'un appareil externe.
  8. Procédé selon l'une des revendications précédentes, caractérisé en ce que, à partir de la longueur de tube connue du tube (100) maintenu et de la profondeur de tubage calculée, la longueur de tube restante dépassant du sol est déterminée et la fondation sur pieux est automatiquement arrêtée dès que le bord supérieur du tube passe en dessous d'une hauteur minimale.
  9. Procédé selon l'une des revendications précédentes, caractérisé en ce que la vitesse d'avancement du processus de fondation sur pieux est déterminée en fonction de la profondeur de tubage calculée et le cas échéant en prenant en compte l'énergie d'entraînement nécessaire de l'appareil rapporté.
  10. Procédé selon l'une des revendications précédentes, caractérisé en ce que la profondeur de tubage est comparée à la progression parallèle du déblai et le processus de fondation sur pieux est de préférence arrêté et/ou interrompu par l'appareil rapporté si l'avance de la profondeur de tubage est supérieure à une valeur de tolérance, la progression du déblai étant de préférence interrogée par l'engin porteur (1) par le biais d'une interface.
  11. Procédé selon l'une des revendications précédentes, caractérisé en ce qu'une prévision concernant l'achèvement du pieu est déterminée par la surveillance continue de la profondeur de tubage, la prévision étant déterminée idéalement en prenant en compte des profils de sol éventuels enregistrés, qui ont été créés par exemple pendant des processus de fondation sur pieux précédents de pieux voisins.
  12. Appareil rapporté pour un engin porteur (1), en particulier une pelle à câbles ou un engin de forage, pour la fondation sur pieux avec une table (301) destinée au maintien d'un tube (100) et au moins une unité d'ordinateur, caractérisé en ce qu'il s'agit d'une unité d'ordinateur intégrée, qui contient un programme qui lui fait exécuter un procédé selon l'une des revendications précédentes 1 à 11.
EP19158770.8A 2018-02-26 2019-02-22 Procédé de mesure de profondeur du tubage dans une fondation sur pilotis ainsi qu'appareil rapporté pour la fondation sur pilotis Active EP3530813B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102018104308.2A DE102018104308A1 (de) 2018-02-26 2018-02-26 Verfahren zur Tiefenmessung der Verrohrung bei der Pfahlgründung sowie Anbaugerät für die Pfahlgründung

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EP3530813A1 EP3530813A1 (fr) 2019-08-28
EP3530813B1 true EP3530813B1 (fr) 2021-08-11

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DE (1) DE102018104308A1 (fr)

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Publication number Priority date Publication date Assignee Title
DE102018104308A1 (de) * 2018-02-26 2019-08-29 Liebherr-Werk Nenzing Gmbh Verfahren zur Tiefenmessung der Verrohrung bei der Pfahlgründung sowie Anbaugerät für die Pfahlgründung
CN111395323A (zh) * 2020-04-13 2020-07-10 中北大学 一种基于压力传感器的防超灌控制装置及其使用方法
NL2027272B1 (nl) * 2021-01-05 2022-07-22 R Kloosterman Holding B V Werkwijze voor het fixeren van een grondanker.

Citations (1)

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Publication number Priority date Publication date Assignee Title
EP3530813A1 (fr) * 2018-02-26 2019-08-28 Liebherr-Werk Nenzing GmbH Procédé de mesure de profondeur du tubage dans une fondation sur pilotis ainsi qu'appareil rapporté pour la fondation sur pilotis

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CH434133A (de) * 1965-04-23 1967-04-15 Bade & Co Gmbh Vorrichtung zum Niederbringen einer Verrohrung in Bohrlöchern
AT363044B (de) * 1977-08-02 1981-07-10 Leffer Stahl & App Vorrichtung zum niederbringen einer verrohrten tiefbohrung zur herstellung einer verrohrten pfahlgruendung
JPS5915124A (ja) * 1982-07-16 1984-01-26 Takechi Koumushiyo:Kk 鋼管体の圧入装置
DE8535088U1 (de) * 1985-12-13 1988-08-18 Ing. Günter Klemm, Spezialunternehmen für Bohrtechnik, 5962 Drolshagen Erdbohrgerät
JP3831181B2 (ja) * 2000-07-05 2006-10-11 新日本製鐵株式会社 回転圧入杭の施工管理システムおよび施工管理方法
DE102015105908B4 (de) * 2015-04-17 2024-08-01 Bauer Maschinen Gmbh Bohrgerät zum Erstellen einer verrohrten Bohrung und Verfahren zum Betreiben eines Bohrgerätes

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Publication number Priority date Publication date Assignee Title
EP3530813A1 (fr) * 2018-02-26 2019-08-28 Liebherr-Werk Nenzing GmbH Procédé de mesure de profondeur du tubage dans une fondation sur pilotis ainsi qu'appareil rapporté pour la fondation sur pilotis

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EP3530813A1 (fr) 2019-08-28

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