EP3081699B1 - Appareil de travaux publics et procédé destiné à la réalisation d'un élément de fondation dans le sol - Google Patents

Appareil de travaux publics et procédé destiné à la réalisation d'un élément de fondation dans le sol Download PDF

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Publication number
EP3081699B1
EP3081699B1 EP15163502.6A EP15163502A EP3081699B1 EP 3081699 B1 EP3081699 B1 EP 3081699B1 EP 15163502 A EP15163502 A EP 15163502A EP 3081699 B1 EP3081699 B1 EP 3081699B1
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EP
European Patent Office
Prior art keywords
ground
hole
walls
removal
collecting
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
EP15163502.6A
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German (de)
English (en)
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EP3081699A1 (fr
Inventor
Albert Riebliner
André Seidel
Herbert Karl
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
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
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Priority to EP15163502.6A priority Critical patent/EP3081699B1/fr
Publication of EP3081699A1 publication Critical patent/EP3081699A1/fr
Application granted granted Critical
Publication of EP3081699B1 publication Critical patent/EP3081699B1/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
    • E02D17/00—Excavations; Bordering of excavations; Making embankments
    • E02D17/13—Foundation slots or slits; Implements for making these slots or slits

Definitions

  • the invention relates to a civil engineering device for creating a foundation element in the ground, as basically from the document EP 145 2654 A known, with a removal device for creating a hole in the ground by removing soil material, a support means on which the removal device is mounted substantially vertically adjustable and retractable into the ground, and a feed device for feeding an additional mass into the hole, wherein the removal device is formed, in the hole to mix the removed soil material with the additional mass to a soil mixture for forming the foundation element, according to the preamble of claim 1.
  • the invention further relates to a collecting device for a civil engineering device for creating a foundation element in the ground, according to the preamble of claim 5.
  • the invention further relates to a method for creating a foundation element in the soil, in which removed by sinking a removal device in the soil soil material and created a hole in the soil, an additional mass is fed into the hole and the removed soil with the additional mass to a Soil mixture is mixed, with which the foundation element is formed, according to the preamble of claim 14th
  • a generic civil engineering device and a generic method are from the EP 2 666 911 A1 known.
  • To create a floor mortar wall as a foundation element several parallel augers are drilled in a soil, with soil material is removed. The removed soil material is still in the Borehole mixed with a binder suspension, wherein the mixture thus formed cures to the foundation element.
  • a significant advantage of such in-situ methods is that the soil material itself is used to form the foundation element. Thus, fewer building materials have to be transported to the construction site and less removed soil material has to be transported away and landfilled, since a large part thereof remains in the ground.
  • the invention has for its object to provide a civil engineering device and a method for creating a foundation element in the ground, with which a foundation element can be created particularly efficient and in a particularly resource-saving manner.
  • the object is according to the invention by a civil engineering device having the features of claim 1, by a collecting device for a civil engineering device for creating a foundation element in the ground with the features of claim 5 or by a method for creating a foundation element in the ground with the features of claim 14 solved.
  • Preferred embodiments of the invention are indicated in the dependent claims.
  • a basic idea of the invention is that a collecting device is provided, which is arranged on an upper side of the hole.
  • the collecting device at least partially surrounds the hole, wherein a receiving chamber for the soil mixture is formed.
  • the at least partially surrounding the hole with the catching device serves for the removal device to be guided through the catching device at the beginning of the removal operation and also to protrude into the receiving chamber during the lowering operation.
  • the at least partially surrounding the hole with the collecting device further serves, in particular, to collect and collect the steadily increasing quantity of displaced soil mixture in the receiving chamber. An uncontrolled flow of the leaked soil mixture is thus prevented.
  • sinking the receiving chamber thus fulfills a collecting and collecting function for the displaced and emergent soil mixture.
  • the soil mixture is directly available for recycling at the hole.
  • the displaced volume in the bottom hole is correspondingly reduced, as a result of which the level of soil mixture in the hole drops.
  • the level increases again.
  • the catcher serves as a kind of buffer for soil mixing. This saves resources and reduces transport and landfill costs.
  • a particularly preferred embodiment of the invention may consist in that the removal device has at least one drilling and mixing screw, which is rotatably driven about a vertical axis of rotation.
  • the drilling and mixing screw can be designed as an endless screw for removing soil material at the borehole bottom and for mixing the removed soil material with an added additional mass, preferably with binder suspension.
  • an endless screw can helix-shaped helical pieces and sections alternate with mixing paddles. This also serves in particular for the homogenization of the soil mixture in the entire borehole during and / or after the sinking.
  • a rotatable drive of the drilling and mixing screw in at least one, preferably in the right and left-hand direction, a direction-changing promotion of the removed soil material and the additional mass supplied in the well and their mixing in different borehole depths and thus the homogenization is achieved.
  • a cutting device can further be provided which has cutting tools adapted to the hardness of the soil material.
  • the removal device has a trench wall cutter with a milling frame, mounted on the underside of cutting wheels rotating about a horizontal axis of rotation and can be driven.
  • the cutting wheels can serve here in addition to the removal of soil material and the mixture of the removed soil material with an additional mass, especially with binder suspension, directly to the bottom hole itself.
  • the homogenization of the soil mixture can be ensured by the rotatable drive of the cutting wheels, which preferably have a pairwise opposite direction of rotation.
  • the cutting wheels typically have tool holders and cutting tools, the latter can be Abtragszähne and can be arranged in rows on the cutting wheel.
  • the number of cutting wheels is further typically straight, but especially but not necessarily two or four cutting wheels may be provided in at least one horizontal plane.
  • a particularly expedient operation can result from the fact that a mobile base carriage is provided on which a vertical mast or a cantilever arm is arranged for holding the removal device.
  • the carrier device may have a mobile base carriage, in particular a tracked vehicle, on which a vertical mast or a cantilever arm can be arranged, wherein the removal device can be mounted on it and arranged to be vertically adjustable.
  • a positioning and alignment of the removal device for the preparation of a foundation element in the ground can thus be made possible by a method of the base carriage and / or a new alignment of the mast or the boom with the removal device.
  • a plurality of foundation elements in any manufacturing sequence, in particular in overlapping manner can be sunk.
  • a receiving chamber for the soil mixture is characterized in that at least two walls are provided, which are connected to form a receiving chamber for the soil mixture.
  • a typically suitable wall has a length of about 1 m to about 5 m and a height of about 0.3 m to about 1.5 m.
  • the collecting device is arranged on the upper side of the hole and / or on the carrier device of the civil engineering device, but in particular not necessarily arranged on a guide device provided for the removal device, whereby, together with the positioning of the removal device at the hole to be scanned, the positioning of the collecting device around the allowed to be rejected hole in an efficient manner.
  • the catcher is box-shaped with four lateral walls.
  • the collecting device can have any desired arrangement of walls which are intended to receive the emerging soil mixture.
  • a particularly preferred embodiment of the invention may consist in that the at least two walls are arranged conically with each other, wherein an upwardly widening funnel-shaped receiving chamber is formed.
  • the conical arrangement of the walls at a front and a back of the collecting device can support a targeted recycling of the leaked soil mixture when removing the removal device.
  • the receiving volume of the receiving chamber is additionally increased by the upwardly flared funnel-shaped configuration.
  • a further advantageous embodiment of the collecting device can according to the invention consist in that at least two walls opposite each other are arranged and that the at least two walls are connected via at least one linkage device which is arranged in a side region between the opposite walls.
  • at least one linkage device can be provided, which can connect the at least two walls to one another.
  • linkage devices are provided, which are each arranged in a side region.
  • linkage devices for stiffening the collecting device may be present in any number.
  • the linkage device comprises two diagonal struts, which are arranged crosswise to each other.
  • any desired number of struts of a linkage device can be arranged in basically any way for stiffening the catching device.
  • a crosswise arrangement of two diagonal or transverse struts can cause a particularly high degree of stiffening of the catcher.
  • the provision of additional transverse struts in horizontal alignment for further stiffening may also be provided.
  • any device for changing the length of the diagonal strut can be selected, in particular also hydraulic cylinders or a telescopic strut Facility.
  • a particularly expedient operation for the collecting device can result from the fact that at least one diagonal strut has a telescopic area, with which a length of the diagonal strut is variable.
  • the telescopic region of the diagonal strut which can be adjusted in its elongated extent, can allow a variable adaptation of the receiving volume to the volume of the exiting soil mixture.
  • the collecting device can thus be used for different displacement volumes, which are in particular dependent on the depth and the volume of the ablation device.
  • the collecting device in a lower region by a change in length of the diagonal struts, similar to a gripper bucket contractible and / or closable. It can also be set a tilt angle of the side walls.
  • a particularly advantageous embodiment of the collecting device with the telescopic area provided according to the invention may consist in that the telescopic area comprises at least one male threaded element and at least one female threaded element.
  • the male threaded member about the threaded axis rotatably connected to the wall of the catcher and the female threaded member may be provided with additional structural elements, which may make it possible, by means of force on this, preferably by means of a tool, a twisting of the female threaded member on the male Threaded element and thus cause a change in length in the direction of the threaded axis and thus also a change in length of the diagonal strut itself.
  • actuating cylinder may be provided, which may allow about a hydraulic adjustment of the walls.
  • a particularly advantageous embodiment of the collecting device according to the invention may consist in that the diagonal braces are hingedly connected to the walls.
  • the articulated connection of the diagonal struts with the walls can cause a tension-free change in the conical position of the walls while maintaining a force-locking connection.
  • the joints can also as be formed releasable fasteners. Due to the partially detachable and / or articulated connections, the collecting device may be collapsible or removable in a particularly efficient and space-saving manner for transport.
  • a compound of the diagonal braces themselves may also be provided.
  • the collecting device according to the invention can be arranged as desired on the civil engineering device and / or on the upper side of the hole.
  • a connection device is provided for connection to the civil engineering device.
  • the collecting device is attached to the carrier device of the civil engineering device by means of the connecting device, but in particular, but not necessarily, attachment to a guide device provided for the removal device can take place.
  • corresponding connecting structures may be provided on the collecting device and / or on the carrier device, in particular on the guide device, which may preferably be formed by provided on the collecting device clevises and provided on the connecting means receiving holes and their connection with secured bolts.
  • the securing of the bolt can be done in particular by means of spring pin or other splint shapes.
  • the walls of the collecting device can be provided with end profiles for holding the connecting structures, which can also serve for fastening the diagonal struts or additional struts, in particular the transverse struts.
  • the method is an essential aspect of the invention for solving the above-mentioned problem that emerges when creating the foundation element from the hole in the soil soil mixture, which is collected in a receiving chamber of a collecting device at an upper side of the hole.
  • Another aspect of the method according to the invention may consist in that when removing the removal device from the hole soil mixture from the Recording chamber is returned to the hole.
  • the soil mixture which has escaped during the drilling and which is present in a controlled manner in a collecting manner in the collecting device can be used to extract the displacing volume when the removal device is withdrawn. Due to the funnel-shaped design of the collecting device, which is given by the conical position of the walls, an at least partially automatic return of the soil mixture from the collecting device can be ensured again in the hole by sliding back.
  • Foundation elements in the context of the invention are not only load-bearing element or slot or sealing walls, but basically all structures which are made in the soil from a soil mixture, in particular a so-called soil mortar.
  • the catcher 10 has two walls 20 which typically have an approximate width of 2m and an approximate height of 0.5m. Inside the two walls 20, a receiving chamber 12 is formed. The receiving chamber 12 is limited at a front side 15 and at a rear side 16 of the collecting device 10 by a respective wall 20 and laterally and open at the top and bottom. The receiving chamber 12 describes a volume for receiving soil material, which is spanned by the two walls 20. In the two side regions 14 of the walls 20 linkage devices 30 are arranged.
  • the connecting device 50 is indicated in dashed lines, which the collecting device 10 with the in the FIGS. 1 to 3 Civil engineering apparatus 100, not shown, connects. Also not shown are the removal device 60, which protrudes through the connecting device 50 and the collecting device 10 during the removal of soil material, and the support means 70 of the civil engineering device 100th
  • the collecting device 10 is connected by four clevises 52, which are mounted in pairs on upper end profiles 22 of the walls 20 and connected by bolts 53, with the connecting device 50.
  • the bolts 53 are secured with spring connectors 54 and provided with handles.
  • different receiving holes 51 are provided on the connecting device 50, which predefine two possible conical positions of the walls 20, wherein these are adjusted by means of a change in length of the diagonal braces 32, respectively their telescopic regions 34.
  • FIG Fig. 2 The two walls 20 of the collecting device 10 provided in this first exemplary embodiment are shown in FIG Fig. 2 shown in the first conical position and in dashed representation in the second conical position. In the first position, both walls 20 enclose an angle of approximately 20 ° and in the second position an angle of approximately 40 °. On the walls 20 are in a side region 14 joints 21 provided to pivotally connect the linkage means 30 to the walls 20.
  • the two linkage devices 30 provided in this first embodiment each have two diagonal struts 32 and one transverse strut 33 each.
  • the diagonal braces 32 connect the first wall 20 with upper and lower joints 21 with the second wall 20 with opposite lower and upper joints 21.
  • the joints 21 are designed so that they allow an outward and inward pivoting of the walls 20.
  • telescopic portions 34 are provided in the diagonal struts 32 above an intersection of the linkage means at which both diagonal struts 32 are interconnected.
  • the two telescopic regions 34 have two male threaded elements 36, which are held by two interconnected female threaded elements 38.
  • the diagonal struts 32 can be lengthened or shortened. Since in the present embodiment, the lower surface of the receiving chamber 12 is constrained by the cross braces 33 causes the change in length of the diagonal braces 32 only an enlargement or reduction of the upper surface of the receiving chamber 12.
  • the cross braces 33 are not changeable in length and hold the two walls 20 at their lower sides at lower end profiles 22.
  • the length of the transverse struts 33 in the exemplary embodiment is approximately 1 m.
  • the catcher 10 as in the first embodiment, has two walls 20 which in this embodiment typically have an approximate width of 2.5m and an approximate height of 0.8m.
  • a receiving chamber 12 is bounded by the two walls 20 and open laterally and downwardly and upwardly.
  • linkage devices 30 are arranged in the two side regions 14 of the walls 20.
  • the catcher 10 is connected by four clevises 52, which are mounted in pairs on the walls 20 and by means of bolts 53, with the connecting device 50 connected.
  • the connecting device 50 which in the Fig. 4 is not fully illustrated, is indicated by four construction elements of the connecting device 50, which have receiving holes 51 for receiving the bolt 53.
  • the two walls 20 of the collecting device 10 provided in this second exemplary embodiment are shown in FIG Fig. 4 shown in a conical position.
  • joints 21 are provided in a side region 14 for pivotally connecting the linkage means 30 to the walls 20.
  • the two linkage devices 30 each have two struts 31, which each consist of a diagonal strut 32 and a transverse strut 33.
  • the arrangement of a further crosswise arranged diagonal strut 32 by means of further joints on the walls 20 is additionally possible, in particular for increased stiffening of the catching device 10.
  • the diagonal struts 32 connect the walls 20 to an upper hinge 21 and an opposite lower hinge 21 on one side and in opposite arrangement with a lower hinge 21 and an opposite upper hinge 21 on the other side.
  • telescopic areas 34 are provided in the diagonal struts 32 and in the transverse struts 33.
  • the telescopic areas 34 have predefined latching positions, which are latched by means of screw connections.
  • it is provided to allow by changing the length of the struts 31, an enlargement or reduction of the lower surface of the receiving chamber 12.
  • all struts 31 are changeable in length, whereby on the one hand a change in volume of the receiving chamber 12 and on the other hand, an adaptation of the collecting device 10 to the size of the removal device 60, in particular their horizontal extent is possible. In this way, the lower surface of the receiving chamber 12 can be adapted to the size of the hole and to the outlet region of the soil mixture.
  • Fig. 5 shows the civil engineering device 100 according to the invention with a movable base carriage 101, which has a caterpillar drive and is rotatable about a vertical axis above the drive.
  • the carrier device 70 of the civil engineering device 100 in particular also has a vertical mast 72, on which the removal device 60 is mounted vertically adjustable.
  • the removal device 60 which protrudes through the catcher 10, mounted.
  • the collecting device 10 is connected to the connecting device 50, through which the removal device 60 also protrudes.
  • the connecting device 50 connects the collecting device 10 with the carrier device 70 of the civil engineering device 100, in particular with the mast 72.
  • the collecting device 10 and the connecting device 50 can thus remain stationary over the hole, while the removal device 60 by a method of the carriage 74 on the mast 72 the Abteufen the hole allows while constantly protruding through the catcher 10.

Claims (14)

  1. Appareil de travaux publics destiné à la réalisation d'un élément de fondation dans le sol, avec
    - un dispositif d'excavation (60) destiné à la réalisation d'un trou dans le sol par excavation de matière comprise dans le sol,
    - un dispositif de support (70) au niveau duquel le dispositif d'excavation (60) est monté réglable sensiblement verticalement et peut être introduit dans le sol, et
    - un dispositif d'amenée pour l'amenée d'une masse additionnelle dans le trou,
    - dans lequel le dispositif d'excavation (60) est conçu pour mélanger dans le trou la matière comprise dans le sol excavée avec la masse additionnelle afin d'obtenir un mélange terreux pour former l'élément de fondation,
    caractérisé en ce
    qu'est prévu un dispositif collecteur (10) dans lequel une chambre de réception (12) pour le mélange terreux est formée qui est disposé au niveau d'un côté supérieur du trou et entoure celui-ci au moins partiellement.
  2. Appareil de travaux publics selon la revendication 1,
    caractérisé en ce
    que le dispositif d'excavation (60) présente au moins une vis sans fin de forage et de mélange qui est entraînée en rotation autour d'un axe de rotation vertical.
  3. Appareil de travaux publics selon la revendication 1,
    caractérisé en ce
    que le dispositif d'excavation (60) présente une fraise pour creuser des tranchées avec un cadre de fraisage, au niveau de la face inférieure duquel des roues de fraisage sont montées et entraînables de manière rotative autour d'un axe de rotation horizontal.
  4. Appareil de travaux publics selon l'une des revendications 1 à 3,
    caractérisé en ce
    qu'est prévu un chariot roulant en contact avec le sol (101) au niveau duquel est disposé un mât vertical (72) ou une poutre cantilever pour maintenir le dispositif d'excavation (60).
  5. Dispositif collecteur pour un appareil de travaux publics selon l'une des revendications 1 à 4 avec un dispositif d'excavation 60 pour former un trou dans le sol,
    caractérisé en ce
    qu'au moins deux parois sont prévues qui sont reliées l'une à l'autre pour former une chambre de réception 12 pour un mélange terreux,
    dans lequel le dispositif collecteur 10 entoure au moins partiellement le trou et est conçu pour recueillir du mélange terreux déplacé provenant du trou.
  6. Dispositif collecteur selon la revendication 5,
    caractérisé en ce
    que les au moins deux parois (20) sont disposées de manière conique l'une par rapport à l'autre, dans lequel une chambre de réception (12) en forme d'entonnoir s'élargissant vers le haut est formée.
  7. Dispositif collecteur selon la revendication 5 ou 6,
    caractérisé en ce
    qu'au moins deux parois (20) sont disposées de manière opposée l'une à l'autre et que les au moins deux parois (20) sont reliées par l'intermédiaire d'au moins un dispositif à tiges (30), qui est disposé dans une zone latérale (14) entre les parois (20) opposées.
  8. Dispositif collecteur selon la revendication 7,
    caractérisé en ce
    que deux dispositifs à tiges (30) sont prévus, qui sont respectivement disposés dans une zone latérale (14).
  9. Dispositif collecteur selon la revendication 7 ou 8,
    caractérisé en ce
    que le dispositif à tiges (30) comprend des entretoises (31) dont au moins une entretoise (31) présente une zone télescopique (34) avec laquelle une longueur de l'entretoise (31) est modifiable.
  10. Dispositif collecteur selon la revendication 7 à 9,
    caractérisé en ce
    que le dispositif à tiges (30) présente deux entretoises diagonales (32) qui sont disposées en croix l'une par rapport à l'autre.
  11. Dispositif collecteur selon la revendication 9 ou 10,
    caractérisé en ce
    que la zone télescopique (34) comprend au moins un élément fileté mâle (36) et au moins un élément fileté femelle (38).
  12. Dispositif collecteur selon la revendication 10,
    caractérisé en ce
    que les entretoises diagonales (32) sont reliées aux parois (20) de manière articulée.
  13. Dispositif collecteur selon l'une des revendications 5 à 12,
    caractérisé en ce
    qu'est prévu un dispositif de liaison (50) destiné à être relié à l'appareil de travaux publics (100).
  14. Procédé destiné à la réalisation d'un élément de fondation dans le sol, où
    - par le creusement du sol par un dispositif d'excavation (60), de la matière comprise dans le sol est excavée et un trou est réalisé dans le sol,
    - une masse additionnelle est amenée dans le trou et
    - la matière comprise dans le sol excavée est mélangée à la masse additionnelle afin d'obtenir un mélange terreux avec lequel l'élément de fondation est formé,
    caractérisé en ce
    - que lors de la réalisation de l'élément de fondation, du mélange terreux sort du trou dans le sol et est reçu dans une chambre de réception (12) d'un dispositif collecteur (10) au niveau d'un côté supérieur du trou, et
    - que lors du retrait du dispositif d'excavation (60) hors du trou, du mélange terreux est ramené de la chambre de réception (12) dans le trou.
EP15163502.6A 2015-04-14 2015-04-14 Appareil de travaux publics et procédé destiné à la réalisation d'un élément de fondation dans le sol Active EP3081699B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP15163502.6A EP3081699B1 (fr) 2015-04-14 2015-04-14 Appareil de travaux publics et procédé destiné à la réalisation d'un élément de fondation dans le sol

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP15163502.6A EP3081699B1 (fr) 2015-04-14 2015-04-14 Appareil de travaux publics et procédé destiné à la réalisation d'un élément de fondation dans le sol

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Publication Number Publication Date
EP3081699A1 EP3081699A1 (fr) 2016-10-19
EP3081699B1 true EP3081699B1 (fr) 2018-01-31

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Publication number Priority date Publication date Assignee Title
FR3035112B1 (fr) 2015-04-14 2020-05-29 Soprema Liant d'origine vegetale, compositions le comprenant et methode pour diminuer la quantite de bitume petrolier

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10308538C5 (de) * 2003-02-27 2014-11-06 Bauer Maschinen Gmbh Verfahren zum Herstellen einer Schlitzwand im Boden, Schlitzwandfräse und Schlitzwandfräsvorrichtung
US7604301B1 (en) * 2006-12-07 2009-10-20 Lang William J Dual axis grinder blender
HUE025973T2 (en) 2012-05-25 2016-05-30 Bauer Spezialtiefbau Process for producing soil mortar in soil

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