EP2806070A1 - Dispositif et procédé de fabrication surveillée d'un corps d'injection haute pression - Google Patents

Dispositif et procédé de fabrication surveillée d'un corps d'injection haute pression Download PDF

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Publication number
EP2806070A1
EP2806070A1 EP20140161423 EP14161423A EP2806070A1 EP 2806070 A1 EP2806070 A1 EP 2806070A1 EP 20140161423 EP20140161423 EP 20140161423 EP 14161423 A EP14161423 A EP 14161423A EP 2806070 A1 EP2806070 A1 EP 2806070A1
Authority
EP
European Patent Office
Prior art keywords
outlet
drill string
measuring means
drill pipe
gyroscopic
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
EP20140161423
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German (de)
English (en)
Other versions
EP2806070B1 (fr
Inventor
Albert Hartmann
Dominik Hartmann
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.)
Bauer Spezialtiefbau GmbH
Original Assignee
Bauer Spezialtiefbau GmbH
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Publication date
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Publication of EP2806070A1 publication Critical patent/EP2806070A1/fr
Application granted granted Critical
Publication of EP2806070B1 publication Critical patent/EP2806070B1/fr
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Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
    • E02D3/12—Consolidating by placing solidifying or pore-filling substances in the soil
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
    • E02D5/22—Piles
    • E02D5/34—Concrete or concrete-like piles cast in position ; Apparatus for making same
    • E02D5/46—Concrete or concrete-like piles cast in position ; Apparatus for making same making in situ by forcing bonding agents into gravel fillings or the soil
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
    • E02D5/66—Mould-pipes or other moulds

Definitions

  • the invention relates to a device for the monitored production of a high-pressure injection body in a floor according to the preamble of claim 1.
  • the invention relates to a method for the monitored production of a high-pressure injection body in a floor according to the preamble of claim 14.
  • a generic apparatus for supervised production of a high-pressure injection body in a floor comprises a drill pipe having an outlet for ejecting an injection medium into the ground, the drill pipe being rotatable for changing an output direction of the outlet, and a measuring device for determining a propagation depth of the injection medium from the nozzle Outlet into the ground, with the measuring device is attached to the drill string.
  • a generic method for supervised production of a high pressure injection body in a floor comprises at least the steps of sinking a drill pipe into the ground, ejecting an injection medium into the ground from an outlet of the drill pipe, the drill pipe being rotatable to change a drill pipe Output direction of the outlet, and that with a measuring device which is attached to the drill string, a propagation depth of the injection medium from the outlet is determined in the soil.
  • the injection medium By rotating the drill string with the outlet, the injection medium is placed radially around the drill string in the ground. It is possible to start the floor first eroded by a high-pressure water jet and then eject the injection medium into the environment, which consists of eroded soil and water. By raising the drill string with the outlet, an approximately cylindrical high pressure injection body (HDI body) can be formed.
  • HDI body high pressure injection body
  • HDI bodies or HDI columns are used for various purposes.
  • a ground can be solidified or sealed against the ingress of groundwater.
  • HDI bodies can connect different wall types, such as pile walls and sheet pile walls.
  • the injection medium may in principle be any fluid or any liquid or suspension which may also be mixed with solids.
  • a cement suspension, chemicals or synthetic resins can be used.
  • the actual dimensions of the HDI body that are actually created must match sufficiently well with desired dimensions. This is of particular importance when several HDI bodies are to provide a seal next to each other in the ground. In this case, there must be no clearance between the HDI bodies.
  • an HDI body particularly in the radial direction of the drill string, may vary depending on the soil.
  • an obstacle in the ground can prevent penetration of the injection medium.
  • a generated HDI body usually has no exact cylindrical shape. Rather, its radial extent depends on the depth and the azimuthal angle. This indicates a direction in a plane perpendicular to the drilling axis.
  • HDI bodies are usually created with an overlap in the soil.
  • measuring devices are used.
  • DE 195 21 639 A1 the erection of an HDI body is monitored with a geophone. This is driven spaced from the drill string in the ground. By detecting ground vibrations, the range to which the injection medium is ejected can be estimated.
  • driving in a geophone is an additional workload that increases the time and staffing requirements. In addition, the achievable accuracy is limited.
  • the measuring device includes a sound transmitter and receiver there.
  • the emitted sound is reflected back at an interface of the borehole, in particular to an injection body. From the duration of the sound signal then the radial extent of the borehole or the propagation depth of the injection medium can be determined.
  • the measuring device comprises a coil with unwindable measuring line. By detecting the amounts of unwinding of the measuring line, it is possible to deduce the radial dimensions of the high-pressure injection body.
  • the invention provides that gyroscopic measuring means are provided on the drill pipe for detecting a caused by the ejection of an injection medium direction of movement of at least a portion of the drill string and that electronic evaluation means are provided and adapted to a current output direction of the outlet to determine on the basis of the detected direction of movement of the drill string and to assign a determined output direction to different determined propagation depths of the injection medium.
  • the invention provides that with gyroscopic measuring means, which are provided on the drill string, caused by the ejection of the injection medium movement direction of at least a portion of the drill string is detected and that with electronic evaluation means a momentary output direction of the outlet based on detected movement direction of the drill string is determined and each determined a determined output direction is assigned to different determined propagation depths of the injection medium.
  • the invention is based first of the finding that the accuracy of the determined dimensions of an HDI body are limited by the fact that an azimuthal orientation of the measuring device, that is, an alignment about the drilling axis of the drill string, is not known exactly.
  • an azimuthal orientation of the measuring device that is, an alignment about the drilling axis of the drill string
  • the determined propagation depths of the injection medium can not be assigned precise radial directions.
  • a drill string usually comprises a plurality of interconnected drill string elements. A rotational position between these elements, that is, an azimuthal orientation, is always subject to uncertainty. This is the result Azimuthal alignment of the drill string, or the drill string element with the measuring device, not exactly known. This limits the accuracy with which the dimensions of an HDI body can be determined.
  • an instantaneous output direction of the outlet need not be determined based on previously known information as well as a rotational position of an off-well portion of the drill string. Rather, the actual orientation of the drill pipe at the height of the outlet is detected.
  • the ejection of the injection medium generates a force on the drill pipe, which is opposite to the discharge direction of the injection medium.
  • the discharge direction can be determined to be in the opposite direction.
  • the direction of movement of the drill string can be understood here as a radial component of the movement of the drill string.
  • the radial component is perpendicular to the drilling axis.
  • the drill string can additionally perform a rotational movement, which superimposes the radial movement.
  • the movement of the entire drill string does not have to be detected. Rather, the measurement of the direction of movement of a portion of the drill string is sufficient.
  • This part may, for example, be connected to a line for the injection medium within the drill string to the outlet so that it is displaced by the passing injection medium in a direction to be determined.
  • the part of the drill pipe can be in particular a nozzle head on which the outlet for the injection medium is formed. Because the force generated by the ejection of the injection medium usually acts on the entire drill string, movement of the outer wall of the drill string can also be detected for directional determination. It is expedient, but not mandatory, to measure a movement of that drill pipe element on which the outlet is located or of a part thereof.
  • the absolute direction should be understood as a direction in a predetermined reference frame.
  • the absolute direction may in particular be related to a fixed reference point or to the rotating drill pipe.
  • an orientation of the gyroscopic measuring means can be determined and recorded before they are sunk with the drill string. After drilling, a rotational position of the gyroscopic measuring equipment and the drill string has changed. This change can be determined by the gyroscopic measuring device. Likewise, the gyroscopic measuring means react to a radial movement of at least a portion of the drill pipe, so that the direction of this radial movement can be determined.
  • electronic evaluation means are provided, which in principle can be positioned at any location.
  • the evaluation can be added adjacent to the gyroscopic measuring means in the drill string.
  • the electronic evaluation means are spaced from the drill string so that they are in operation outside the wellbore.
  • they can be formed as a commercial computer with appropriate software.
  • the direction of movement of the drill string and thus the output direction of the outlet are measured and stored time-resolved.
  • a current output direction can be determined. This can also be understood as meaning that instantaneous output directions are calculated only subsequently, in particular after the establishment of the HDI body, on the basis of the recorded data of the gyroscopic measuring means.
  • the propagation depths of the injection medium for different azimuth angles of the outlet and different heights are also detected time-resolved with the measuring device.
  • the electronic evaluation means can assign to a certain determined propagation depth just the determined output direction which has been measured at the same time.
  • the gyroscopic measuring means are accommodated within the drill pipe. As a result, they are protected from the environment of the drill string. They can be coupled to an outer wall of the drill pipe to determine their movement.
  • the gyroscopic measuring means may comprise at least one gyroscope, with which a movement of the drill string can be detected at least in a plane transverse to the drilling axis of the drill string.
  • several gyroscopes can be used for this purpose, whereby the measurement accuracy increases.
  • the gyroscopic measuring means can measure a movement of the drill string in the direction of the drilling axis.
  • an inclination of the drill string can be measured in a time-resolved manner.
  • the inclination of the drill string can then be taken into account for the calculation of the propagation depth of the injection medium.
  • the gyroscope or the gyroscopes can be formed in any desired manner, in particular as a MEMS (micro-electro-mechanical system), as a fiber-optic gyroscope or as a gyrostat.
  • MEMS micro-electro-mechanical system
  • fiber-optic gyroscope or as a gyrostat.
  • a gyroscope may also be arranged to detect a direction of the earth's magnetic field. Based on this direction, alignment of the gyroscope can be determined or updated. This avoids that the accuracy with which the orientation of the gyroscope is known, significantly reduced over time.
  • the gyroscopic measuring means preferably have at least one acceleration sensor. With this an acceleration direction of the drill string is at least in a plane transverse to the drilling axis of the drill string measurable.
  • the electronic evaluation means are set up to calculate the instantaneous output direction of the outlet on the basis of measured values of the at least one gyroscope and of the at least one acceleration sensor.
  • a plurality of acceleration sensors are used for different directions within the plane transverse to the drilling axis.
  • an acceleration sensor can also be designed to detect a movement out of this plane.
  • the gyroscopic measuring means can be arranged on a rotation axis of the drill pipe. As a result, a radial movement of the drill string can be detected more easily, wherein the effects of a possible rotation of the drill string are reduced to the gyroscopic measuring means.
  • the gyroscopic measuring means can also be arranged at a distance from the axis of rotation. This allows them to better detect rotation of the drill pipe. This can be used to calculate an instantaneous rotational position of the outlet based on a previously determined rotational position of the outlet.
  • a high measurement accuracy can also be provided if the gyroscopic measuring means have at least one gyroscope and at least one acceleration sensor, wherein the gyroscope is arranged on the axis of rotation and the acceleration sensor is at a distance from the axis of rotation.
  • the orientation of the gyroscopic measuring means can be detected well, while movements of the drill pipe element can also be detected precisely.
  • the gyroscopic measuring means can be arranged at a basically arbitrary height in the longitudinal direction of the drill string, since a deflection of the drill string takes place by ejecting the injection medium over a large part of the drill pipe or even the entire drill pipe.
  • the gyroscopic measuring means are preferably arranged at the level of the outlet or at least at that drill pipe element on which the outlet is located. This makes use of the fact that the deflection of the drill string at the height of the outlet is greatest.
  • the gyroscopic measuring means and the outlet can be arranged relative to each other movably on the drill string.
  • the outlet direction can be changed without the gyroscopic measuring means being rotated.
  • they can determine a movement of the drill string due to the ejection of injection medium particularly accurately without superimposed on a separate rotational movement.
  • the gyroscopic measuring means and the outlet can also be arranged immovably relative to one another on the drill string.
  • the relative position between the gyroscopic measuring means and the outlet fixed and therefore precisely known.
  • Rotation of the outlet can be determined by measuring the rotation of the gyroscopic measuring means. This can then be taken into account in the calculation of the output direction.
  • a rotary measuring device can also be present outside the borehole. With this, a rotational position of an upper drill string element can be detected.
  • the gyroscopic measuring means can be used for a first determination of the dispensing direction. Later output directions can then be determined based on this first determined output direction as well as the rotation of the drill string measured since then with the rotary measuring device.
  • the rotary metering device need not necessarily be located outside the borehole. More generally, a rotation measuring device different from the gyroscopic measuring means is provided for determining a rotation of the drill pipe, and the electronic evaluation means are adapted to calculate an instantaneous output direction of the outlet on the basis of measured values of the gyroscopic measuring means and of the rotary measuring device.
  • an electronic memory for storing measurement data of the gyroscopic measuring means.
  • the detected dimensions of the HDI body can thus be documented.
  • the measured data are recorded in the memory for later evaluations.
  • the data transmission means comprise at least one cable. This may in particular extend along the drill pipe or each drill string.
  • the BohrgestSheschüssen wireless transmission means may be provided which are based for example on induction, light signals or ultrasound.
  • radio can be used, whereby a particularly flexible use is possible and conventional devices can be easily retrofitted. Especially when using It is preferred by radio resources if a battery for supplying energy to the gyroscopic measuring means, the measuring device and optionally the electronic memory and the radio is present within the drill string.
  • the power supply of the gyroscopic measuring means can also be done via a cable, which runs along the drill string and in particular is also used for data transmission. If the data transmission already takes place during the measuring operation, the shape of the HDI body can already be determined while it is being generated. As a result, further improvements can be made before the injection medium has cured.
  • the measuring device can in principle be of any type as long as it can determine a propagation depth of the injection medium, that is to say a radius of the resulting HDI body.
  • the measuring device preferably comprises a receiver device with which an acoustic signal can be detected.
  • the acoustic signal may in particular be due to the ejected injection medium and accordingly be referred to as injection noise.
  • the receiver device can also be designed as a transmitter-receiver device and can emit acoustic signals in a direction transverse to the drilling axis of the drill string.
  • the emitted signals may be reflected at an interface between the injection medium and a surrounding soil material. Reflected signals can be measured with the transceiver device to determine the propagation depth.
  • any other signals may be used instead of acoustic signals, but preferably the transmitter-receiver device is designed to transmit and detect sound waves.
  • Sound waves can be understood in principle any pressure waves. These do not have to be within the human frequency range.
  • infra or ultrasound can be used.
  • the transmitting and receiving direction of the transceiver device is arranged co-rotating with the output direction of the outlet. In particular, it may be parallel to the output direction.
  • the azimuth direction of the transmission and reception of the transceiver device is also known.
  • the drill string is not only rotated, but also raised from a lowered position to create an injection body radially surrounding the drill string in the ground.
  • the cross-sectional dimensions of the HDI body can advantageously be determined for different heights along the HDI body.
  • Fig. 1 1 schematically shows an exemplary embodiment of a device 100 according to the invention for the monitored production of a high-pressure injection body 22 (HDI body 22) in a base 3.
  • HDI body 22 high-pressure injection body 22
  • the device 100 comprises at least one drill pipe 10 with which a in Fig. 1 partially illustrated hole 5 can be generated.
  • an outlet 20 is formed at the drill pipe 10.
  • an injection medium 22 can be ejected from the drill string 10 into the bottom 3.
  • the outlet 20 is rotatable together with the drill string 10 or independently of the drill pipe 10 about a rotation axis 14 or drilling axis 14. This creates an HDI body 22 that surrounds the drill pipe 10.
  • the ejected injection medium 22 penetrates to a propagation depth 28.
  • the propagation depth 28 is a radial distance that may be determined from the outlet 20 or from the drilling axis 14. Due to obstacles in the ground, the size of the propagation depth 28 may depend on the azimuth angle about the axis of rotation 14 and / or on the height of the outlet 20 along the axis of rotation 14.
  • a measuring device 40 is co-rotating with the drill string 10. This receives a measurement signal, such as a sound signal.
  • a measurement signal such as a sound signal.
  • the injection noise can be used or It can be sent with a transmitter an audible signal whose reflections are measured as a sound signal. In particular, the signal can be reflected back at an interface between the injection medium 22 and the bottom 3.
  • the associated azimuthal direction which indicates a rotational position of the outlet 20 about the axis of rotation 14, is also determined for a determined propagation depth 28.
  • gyroscopic measuring means 30 are present on the drill pipe 10. These detect a direction of movement 26 of at least part of the drill string 10. This movement is caused by the ejection of the injection medium 22. Therefore, an ejection direction 24 and the direction of movement 26 of the drill string 10 are just opposite to each other.
  • electronic evaluation means (not shown) can calculate different ejection or dispensing directions 24 of the outlet 20 from the measured values of the gyroscopic measuring means 30.
  • At least four, preferably at least eight different dispensing directions 24 are successively detected with the gyroscopic measuring means 30 and the associated propagation depths 28 are stored.
  • the dimensions of the resulting HDI body can be monitored with high accuracy.
  • HDI bodies sealed to one another in a reliable manner can be produced side by side in the ground, without requiring an excessively large overlap between the HDI bodies.

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  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Paleontology (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Agronomy & Crop Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Soil Sciences (AREA)
  • Geophysics And Detection Of Objects (AREA)
EP14161423.0A 2013-05-21 2014-03-25 Dispositif et procédé de fabrication surveillée d'un corps d'injection haute pression Active EP2806070B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102013008621.3A DE102013008621B4 (de) 2013-05-21 2013-05-21 Vorrichtung und Verfahren zur überwachten Herstellung eines Hochdruckinjektionskörper

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Publication Number Publication Date
EP2806070A1 true EP2806070A1 (fr) 2014-11-26
EP2806070B1 EP2806070B1 (fr) 2015-09-23

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EP14161423.0A Active EP2806070B1 (fr) 2013-05-21 2014-03-25 Dispositif et procédé de fabrication surveillée d'un corps d'injection haute pression

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EP (1) EP2806070B1 (fr)
DE (1) DE102013008621B4 (fr)
HK (1) HK1204025A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019219320A1 (fr) 2018-05-18 2019-11-21 Bauer Spezialtiefbau Gmbh Procédé de génie civil et dispositif de construction pour créer une structure en forme de colonne dans le sol
CN112267499A (zh) * 2020-11-17 2021-01-26 上海长凯岩土工程有限公司 一种旋喷桩成桩直径检测装置

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105672381B (zh) * 2016-04-12 2018-08-03 西南石油大学 一种超声波桩底沉渣厚度检测装置及检测方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19521639A1 (de) 1995-06-14 1996-05-02 Bilfinger Berger Bau Verfahren zur Überwachung eines HDI-Verfahrens
DE19622282C1 (de) 1996-06-03 1997-08-07 Schneider Nikolaus Dipl Ing Un Verfahren und Vorrichtung zur Vermessung von Bohrlochwandungen oder von Wandungen eines von einem Bohrloch aus erzeugten Hohlraums
DE19834731C1 (de) 1998-03-06 1999-08-26 Bauer Spezialtiefbau Meßvorrichtung und Verfahren zum Bestimmen des Durchmessers eines HDI-Körpers
EP2080836A2 (fr) * 2008-01-21 2009-07-22 DMI Injektionstechnik GmbH Procédé destiné à la fixation de sections de sol et dispositif destiné à l'exécution du procédé

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19807060A1 (de) * 1997-02-21 1998-08-27 Socon Sonar Control Kavernenve Verfahren und Vorrichtung zur Einbringung eines fließfähigen Mittels in den Erdboden
IT1394900B1 (it) * 2009-06-09 2012-07-20 Soilmec Spa Dispositivo di scavo ed analisi del profilo dello scavo stesso e metodo associato.

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19521639A1 (de) 1995-06-14 1996-05-02 Bilfinger Berger Bau Verfahren zur Überwachung eines HDI-Verfahrens
DE19622282C1 (de) 1996-06-03 1997-08-07 Schneider Nikolaus Dipl Ing Un Verfahren und Vorrichtung zur Vermessung von Bohrlochwandungen oder von Wandungen eines von einem Bohrloch aus erzeugten Hohlraums
DE19834731C1 (de) 1998-03-06 1999-08-26 Bauer Spezialtiefbau Meßvorrichtung und Verfahren zum Bestimmen des Durchmessers eines HDI-Körpers
EP2080836A2 (fr) * 2008-01-21 2009-07-22 DMI Injektionstechnik GmbH Procédé destiné à la fixation de sections de sol et dispositif destiné à l'exécution du procédé

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019219320A1 (fr) 2018-05-18 2019-11-21 Bauer Spezialtiefbau Gmbh Procédé de génie civil et dispositif de construction pour créer une structure en forme de colonne dans le sol
CN112267499A (zh) * 2020-11-17 2021-01-26 上海长凯岩土工程有限公司 一种旋喷桩成桩直径检测装置

Also Published As

Publication number Publication date
DE102013008621A1 (de) 2014-11-27
HK1204025A1 (en) 2015-11-06
DE102013008621B4 (de) 2016-08-04
EP2806070B1 (fr) 2015-09-23

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