EP2410092B1 - Dispositif et procédé de fabrication de murs verticaux dans un sol de fondation - Google Patents

Dispositif et procédé de fabrication de murs verticaux dans un sol de fondation Download PDF

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Publication number
EP2410092B1
EP2410092B1 EP20110005268 EP11005268A EP2410092B1 EP 2410092 B1 EP2410092 B1 EP 2410092B1 EP 20110005268 EP20110005268 EP 20110005268 EP 11005268 A EP11005268 A EP 11005268A EP 2410092 B1 EP2410092 B1 EP 2410092B1
Authority
EP
European Patent Office
Prior art keywords
rotation
mixing
mixing tools
inclination
tools
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.)
Active
Application number
EP20110005268
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German (de)
English (en)
Other versions
EP2410092A1 (fr
Inventor
Eckart Colmorgen
Andre Seidel
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 of EP2410092A1 publication Critical patent/EP2410092A1/fr
Application granted granted Critical
Publication of EP2410092B1 publication Critical patent/EP2410092B1/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
    • E02D3/126—Consolidating by placing solidifying or pore-filling substances in the soil and mixing by rotating blades
    • 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
    • E02D5/18—Bulkheads or similar walls made solely of concrete in situ
    • E02D5/187—Bulkheads or similar walls made solely of concrete in situ the bulkheads or walls being made continuously, e.g. excavating and constructing bulkheads or walls in the same process, without joints

Definitions

  • the invention relates to a device according to the preamble of patent claim 1 and a method according to the preamble of patent claim 7.
  • the mixed-in-place method is used in addition to overcut bored pile walls or diaphragm walls. This is an economical process in which the adjacent soil is mixed with a self-hardening binder in place to obtain a wall of floor mortar.
  • two or more rod-shaped mixing tools are simultaneously screwed into the ground.
  • These mixing tools can be equipped either over the entire length or only over part of the boom length with a wide variety of mixing tools.
  • These mixing tools usually consist of a core tube to which a wide variety of mixing tools in the form of screw pieces, continuous screws, paddle-like surfaces or other stirring tools are arranged, which are distributed uniformly or non-uniformly over the length of the rod-shaped stirring tool.
  • rod-shaped mixing tools are known in which the mixing devices are arranged only in the lower part of the linkage.
  • a suspension is pressed into the soil during the screwing of these mixing tools into the grown soil, preferably in the lower region.
  • These suspensions consist of water and a usually self-hardening binder such as cement. Further, bentonite or similar stabilizing chemicals are also added to stabilize the binder suspensions. These can also have accelerating or retarding action and affect the workability of the floor mortar and its flowability.
  • the background for the device according to the invention and the associated method is that one obtains reliable statements about how the position of the mixing tools is at greater depths.
  • a method for measuring a borehole in the ground in which a borehole is created with a drill string. At the base of the drill string and at an upper point inclinometers are arranged to measure the borehole.
  • a measuring device for determining the orientation and the course of a drill pipe known. Along the drill string several inclinometer sensors are arranged to perform the measurement.
  • the invention now has the task of creating a simple and economical way vertical walls in the soil with particularly good tightness.
  • At least two inclinometers each are arranged at different heights on at least two of the bar-shaped mixing tools. You can determine the inclination of the axes of rotation of the rod-shaped mixing tools in two directions and in addition to these mixing tools adjusting devices are available with which you can set the axes of rotation of the individual mixing tools to a predetermined angle of rotation. Thus, you can always perform a tilt measurement in two directions to the vertical in different immersion depths of the individual mixing tools at the same predetermined rotation angle.
  • the invention is based on the FIGS. 1 to 3 explained.
  • Fig. 1 shows a device according to the invention for the production of Bodenmörtellamellen, wherein in a variant of the invention in the outer core tubes or axes of rotation at least two Neistsmessauf screening 4 are arranged, wherein preferably a Neistsmessaufsacrificing is located as far down in the linkage and the other sensor as far as possible in the top of the carriage 12th ,
  • Fig. 2 is shown in a plan view of a single mortar lamella the section 20 by a lamella on the terrain surface and the section 30 after reaching the final depth.
  • the position of the core tubes of the bar-shaped mixing tools show the points 21 and 22 in the area of the terrain surface and the points 31 and 32 after reaching the final depth.
  • Fig. 3 shows the geometric representation of the device according to the invention of two soil mortar lamellae, between which a wedge-shaped slot 50 has opened due to a running of the blade in the depth, in which no soil mortar is present.
  • Equipment with which such Bodenmörtellamellen can be produced have a tower 2, on which a carriage 12 and leaves. This carriage 12 can be moved over cylinders or circulating chains or wire ropes along the tower. On slide 12 a plurality of rod-shaped mixing tools 5 are attached.
  • a plurality of inclinometers 4 are arranged in the two outer mixing tools. Since the individual mixing tools usually have soul tubes with a small cross-section, these are mixing tools especially for larger lengths relatively soft and can deviate from the vertical and bend easily. For reasons of stabilization, the mixing tools are connected to one another in the lower region with connecting elements 9, which hold the individual mixing tools at the same distance.
  • At least two tilt measuring sensors 4 are arranged in the interior of the core tubes of the mixing tools. These inclinometers 4 are fixedly spaced from one another and their measurements allow the course of the mixing tool linkage to be determined at different depths of the penetration into the ground. In addition, the inclinometer 4 are also rotatably connected to the mixing tools 5.
  • the main measurement planes of the inclination transducers point in the same direction during the measurement process.
  • each mixing tool 5 has an adjusting device with which a predetermined angle of rotation of the axis of rotation of the mixing tools 5 can be set can. If the mixing tools 5 are connected to each other in a rotationally offset-free manner via a gear, then an adjusting device is sufficient.
  • this adjusting device it is possible that the driver at each penetration depth of the mixing tools 5 at a same predetermined rotation angle of the rotation axis or in the same direction can perform the measurement.
  • the predetermined rotation angle is selected so that at least one of the main measurement planes of the inclination sensor 4 extends in the planned wall direction of the wall to be produced.
  • inclinometers are either pendulums, which determine the angle of the axes of rotation to the vertical or horizontal.
  • the inclination of the axis is determined to a self-leveling liquid level.
  • a preferred embodiment for setting the predetermined angle of rotation consists of one or more proximity switches and the associated contactors.
  • the proximity switches are located at non-rotating points of the carriage or portions of the rotary drive or portions of the rotary linkage or core tube of the mixing tools.
  • the contactors are attached directly or indirectly to the rotating parts of the mixing tools 5.
  • the core tube or flanges, discs or gears which are fixedly connected to the axis of rotation or the tube of the soul.
  • either the rotary drive can be automatically stopped at the predetermined angle of rotation, or the stopping takes place via a signal given by the proximity switch and as a result of which the driver stops the rotary drive.
  • the signals can be optical or acoustic.
  • the desired setting angle In order to approach the predetermined setting angle as accurately as possible, it may be appropriate for the desired setting angle to be approached via a plurality of individual proximity switches, which are arranged side by side or one after the other. In this way, the rotary linkage for measuring can be slowed down gradually and the predetermined rotation angle can be approached more accurately and faster.
  • the adjusting device can also consist of mechanical or electronic rotary encoders according to the prior art. These indicate by direct or indirect measurement, the rotational position of the axis of rotation of the mixing tool.
  • the rotational position of the axis of the mixing tools 5 is determined via compass-like devices, displayed and approached.
  • the corresponding inclination measurements in different depth positions are preferably carried out while the mixing tool is stationary.
  • the device driver is shown the position and deformation of the single lamella just produced on the screen.
  • Fig. 2 and Fig. 3 embodiments of the invention for the display of the measurement result on the screen of the device driver are shown.
  • the layer 20 of a Bodenmörtellamelle is shown as a horizontal section at the level of the upper railing.
  • the layer 30 represents the horizontal section through the prepared Bodenmörtellamelle, as they are calculated from the calculation of the inclination at the lowest point of the lamella.
  • the device has in Example 3 mixing tools.
  • the position of the centers of the axis of rotation with the inclination transducers is represented by the points 31 and 32.
  • the desired position 33 of the wall to be produced can also be displayed on the display screen in the driver's cab.
  • the device operator can set in this case another single lamella between the two blades produced.
  • slip-ring-type data transmission systems are preferably arranged on the axes of rotation or the rotary drive.
  • Transmission may be via touch or non-contact transmission techniques.
  • a radio transmission is also possible.
  • the stopping of the rotary gear at certain predetermined angles of rotation can be done automatically by a controller or manually by the device driver.
  • the driver In manual mode, the driver is visually or acoustically displayed the approach or reaching the predetermined rotation angle.
  • the rotational speed of the rod-shaped mixing tools 5 is reduced or stopped completely.
  • the optical display of the achieved or desired rotational position of the mixing tools 5 in the cab via lights, pointers, bars or other display means or symbols according to the state of the screen technology or display technology.

Landscapes

  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Civil Engineering (AREA)
  • Paleontology (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Agronomy & Crop Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Soil Sciences (AREA)
  • Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
  • Bulkheads Adapted To Foundation Construction (AREA)

Claims (9)

  1. Dispositif de fabrication de murs verticaux dans un sol de fondation, qui sont composés de lamelles individuelles juxtaposées, avec plusieurs outils mélangeurs (5) essentiellement en forme de barres placés les uns à côté des autres, qui peuvent tourner autour d'axes de rotation verticaux et qui sont munis, sur au moins une partie de leur longueur, de surfaces mélangeuses en forme de vis, pales ou aubes, les outils mélangeurs (5) pouvant être enfoncés simultanément dans le sol de fondation,
    caractérisé en ce que
    sur au moins deux des outils mélangeurs en forme de barres (5) sont placés à chaque fois plusieurs capteurs de mesure d'inclinaison (4) à différentes hauteurs, qui déterminent l'inclinaison des axes de rotation des outils mélangeurs en forme de barres (5) dans deux directions par rapport à la verticale, dans lequel les plusieurs capteurs de mesure d'inclinaison (4) d'un seul outil mélangeur (5) sont regroupés en une chaîne de mesure qui est introduite dans l'intérieur d'un tube d'âme de l'outil mélangeur (5),
    en ce que sur les outils mélangeurs (5) se trouvent des dispositifs de réglage avec lesquels les axes de rotation des différents outils mélangeurs (5) peuvent être réglés à un angle de rotation prédéterminé, et
    en ce que les mesures de l'inclinaison des axes de rotation peuvent être conduites par les capteurs de mesure d'inclinaison (4) toujours au même angle de rotation à différentes profondeurs d'enfoncement des outils mélangeurs (5).
  2. Dispositif selon la revendication 1, caractérisé en ce que le dispositif de réglage présente au moins un capteur de proximité stationnaire en rotation et au moins un contacteur correspondant sur l'outil mélangeur rotatif (5), et
    en ce qu'ainsi, un entraînement rotatif (13) peut être commandé et les axes de rotation des outils mélangeurs (5) peuvent être tournés dans une direction prédéterminée pour la mesure.
  3. Dispositif selon l'une des revendications 1 à 2, caractérisé en ce que le dispositif de réglage présente un mesureur d'angle de rotation sur l'outil mélangeur rotatif (5), par lequel l'entraînement rotatif (13) de l'outil mélangeur (5) peut être commandé et l'entraînement rotatif peut être arrêté lorsqu'on atteint un angle de rotation prédéterminé de l'axe de rotation de l'outil mélangeur (5).
  4. Dispositif selon l'une des revendications 1 à 3, caractérisé en ce que le dispositif de réglage présente une boussole ou un compas sur l'outil mélangeur rotatif (5), par lequel l'entraînement rotatif (13) de l'outil mélangeur (5) peut être commandé et l'entraînement rotatif peut être arrêté lorsqu'on atteint un angle de rotation prédéterminé de l'axe de rotation de l'outil mélangeur (5).
  5. Dispositif selon l'une des revendications 1 à 4, caractérisé en ce que le capteur de mesure d'inclinaison (4) est alimenté en courant par un dispositif de type bague frottante et les valeurs de mesure peuvent être lues.
  6. Dispositif selon l'une des revendications 1 à 5, caractérisé en ce que l'alimentation électrique et la lecture des valeurs de mesure du capteur de mesure d'inclinaison (4) sont effectuées par l'intermédiaire d'un dispositif de transmission rotatif sans contact.
  7. Procédé de fabrication de murs verticaux dans un sol de fondation, qui sont composés de lamelles individuelles juxtaposées, qui sont fabriqués par un dispositif selon l'une des revendications 1 à 6 avec plusieurs outils mélangeurs (5) essentiellement en forme de barres placés les uns à côté des autres, les outils mélangeurs (5) étant enfoncés dans le sol de fondation et un mortier de sol étant fabriqué dans la lamelle à partir du matériau de sol présent, par ajout d'une suspension durcissante de liant,
    caractérisé en ce que,
    lorsqu'on atteint différentes profondeurs, les outils mélangeurs (5) sont réglés sur le même angle de rotation prédéterminé, on cesse la rotation, on procède à une mesure de l'inclinaison des outils mélangeurs (5) au moyen de plusieurs capteurs de mesure d'inclinaison (4) qui sont regroupés en une chaîne de mesure et introduits dans un tube d'âme de l'outil mélangeur (5), et on détermine ainsi la géométrie et la position des lamelles.
  8. Procédé selon la revendication 7, caractérisé en ce que différentes sections, de position déterminée, des lamelles de mortier de sol ainsi fabriquées à différentes profondeurs sont représentées dès l'enfoncement de la lamelle ou à la fin sur un écran du local de conduite, afin de permettre au conducteur de corriger des écarts.
  9. Procédé selon l'une des revendications 7 ou 8, caractérisé en ce que l'angle de rotation prédéterminé est de préférence choisi en sorte que l'un des plans de mesure des capteurs de mesure d'inclinaison vienne se placer dans un plan du mur prévu.
EP20110005268 2010-07-20 2011-06-28 Dispositif et procédé de fabrication de murs verticaux dans un sol de fondation Active EP2410092B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE201010027607 DE102010027607A1 (de) 2010-07-20 2010-07-20 In-Situ hergestellte Bodenmörtellamellen mit geometrischer Darstellung

Publications (2)

Publication Number Publication Date
EP2410092A1 EP2410092A1 (fr) 2012-01-25
EP2410092B1 true EP2410092B1 (fr) 2013-03-20

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ID=44840538

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EP20110005268 Active EP2410092B1 (fr) 2010-07-20 2011-06-28 Dispositif et procédé de fabrication de murs verticaux dans un sol de fondation

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EP (1) EP2410092B1 (fr)
DE (1) DE102010027607A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2666911B1 (fr) * 2012-05-25 2015-09-23 Bauer Spezialtiefbau GmbH Procédé de fabrication d'une paroi en mortier fixée dans le sol
CN103471655A (zh) * 2013-09-09 2013-12-25 山河智能装备股份有限公司 一种立柱倾斜度的保护装置
CN106013067A (zh) * 2016-06-25 2016-10-12 张璐 地下水泥土造墙设备
CN108221965B (zh) * 2018-01-18 2019-08-09 樊军让 混凝土反压旋冲式多支盘灌注桩施工法
CN113006175A (zh) * 2021-03-05 2021-06-22 江西省水利科学院 一种螺旋式地下连续墙施工装置及方法

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1302070A (fr) * 1969-11-21 1973-01-04
DE8816532U1 (fr) * 1988-12-05 1989-10-19 Ief-Werner Gmbh, 7743 Furtwangen, De
JP2714285B2 (ja) * 1991-09-12 1998-02-16 株式会社大林組 多軸掘削機の傾斜管理方法
DE4407474C2 (de) * 1994-03-07 2000-07-13 Asm Automation Sensorik Messte Drehwinkelsensor
JP3345258B2 (ja) * 1996-03-12 2002-11-18 不動建設株式会社 掘削・撹拌機の地中先端位置検出システム
DE19837546C2 (de) * 1998-08-19 2001-07-26 Bilfinger Berger Bau Meßvorrichtung zum Bestimmen der Ausrichtung und des Verlaufs eines Bohrgestänges
DE19846137C2 (de) * 1998-10-07 2002-08-29 Keller Grundbau Gmbh Verfahren und Vorrichtung zum Vermessen eines Bohrlochs
DE10016948A1 (de) * 1999-04-17 2000-11-02 Zueblin Ag Ermittlung von Bohrlochabweichungen beim Düsenstrahlverfahren
DE19960036C1 (de) * 1999-12-13 2001-07-05 Keller Grundbau Gmbh Verfahren zum Vermessen eines Bohrloches
DE10238646B3 (de) * 2002-08-23 2004-04-01 Bauer Spezialtiefbau Gmbh Dichte Mixed-in-Place-Wände

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DE102010027607A1 (de) 2012-01-26
EP2410092A1 (fr) 2012-01-25

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