EP3296468B1 - Verfahren und schlitzwandfräse zum erstellen eines schlitzes im boden - Google Patents

Verfahren und schlitzwandfräse zum erstellen eines schlitzes im boden Download PDF

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Publication number
EP3296468B1
EP3296468B1 EP16188961.3A EP16188961A EP3296468B1 EP 3296468 B1 EP3296468 B1 EP 3296468B1 EP 16188961 A EP16188961 A EP 16188961A EP 3296468 B1 EP3296468 B1 EP 3296468B1
Authority
EP
European Patent Office
Prior art keywords
fluid
trench
cutter
ground
cutting
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
EP16188961.3A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP3296468A1 (de
Inventor
Thomas VOHS
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 Maschinen GmbH
Original Assignee
Bauer Maschinen 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
Publication date
Application filed by Bauer Maschinen GmbH filed Critical Bauer Maschinen GmbH
Priority to EP16188961.3A priority Critical patent/EP3296468B1/de
Priority to JP2017161810A priority patent/JP6636999B2/ja
Priority to CN201710838092.4A priority patent/CN107829456B/zh
Publication of EP3296468A1 publication Critical patent/EP3296468A1/de
Application granted granted Critical
Publication of EP3296468B1 publication Critical patent/EP3296468B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F5/00—Dredgers or soil-shifting machines for special purposes
    • E02F5/02—Dredgers or soil-shifting machines for special purposes for digging trenches or ditches
    • E02F5/08—Dredgers or soil-shifting machines for special purposes for digging trenches or ditches with digging wheels turning round an axis
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/18—Dredgers; Soil-shifting machines mechanically-driven with digging wheels turning round an axis, e.g. bucket-type wheels
    • E02F3/20—Dredgers; Soil-shifting machines mechanically-driven with digging wheels turning round an axis, e.g. bucket-type wheels with tools that only loosen the material, i.e. mill-type wheels
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/18—Dredgers; Soil-shifting machines mechanically-driven with digging wheels turning round an axis, e.g. bucket-type wheels
    • E02F3/20—Dredgers; Soil-shifting machines mechanically-driven with digging wheels turning round an axis, e.g. bucket-type wheels with tools that only loosen the material, i.e. mill-type wheels
    • E02F3/205—Dredgers; Soil-shifting machines mechanically-driven with digging wheels turning round an axis, e.g. bucket-type wheels with tools that only loosen the material, i.e. mill-type wheels with a pair of digging wheels, e.g. slotting machines
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/18—Dredgers; Soil-shifting machines mechanically-driven with digging wheels turning round an axis, e.g. bucket-type wheels
    • E02F3/22—Component parts
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F5/00—Dredgers or soil-shifting machines for special purposes
    • E02F5/02—Dredgers or soil-shifting machines for special purposes for digging trenches or ditches
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F5/00—Dredgers or soil-shifting machines for special purposes
    • E02F5/02—Dredgers or soil-shifting machines for special purposes for digging trenches or ditches
    • E02F5/14—Component parts for trench excavators, e.g. indicating devices travelling gear chassis, supports, skids

Definitions

  • the invention relates to a method for producing a slot in the ground by means of a trench cutter having at its lower, bottom end at least a pair of cutting wheels, which are rotationally driven and soil material is removed to form a slot, wherein at least one fluid nozzle on the trench wall cutter a fluid is introduced into the slot, according to the preamble of claim 1.
  • the invention further relates to a trench wall cutter having a trimming frame, at the lower, bottom end of which at least one pair of cutting wheels is rotatably drivable and having at least one fluid nozzle for feeding a fluid into the slot, according to the preamble of claim 7.
  • a generic device for producing a slot in the ground is for example from the EP 0 903 443 A2 known.
  • this device two pairs of cutting wheels are arranged on a milling frame.
  • the cutting wheels are arranged in pairs on a common Frässchild on the cutter frame, which is suspended from a support cable.
  • the suspension point of the suspension cable can be adjusted. For this purpose, a special adjustment is provided.
  • a trench cutter known, which is formed with a compact wedge-shaped milling frame, which is guided via a rigid guide rod from the outside in the milling slot. Between the cutting wheel pairs, a suspension is fed, which is mixed in situ with abraded soil material to a soil mortar. For a high directional stability, a correspondingly dimensioned guide rod is to be provided, in particular for larger slot depths.
  • a trench wall cutter In the milling operation, a trench wall cutter can be deflected by a usually vertical milling direction due to conditions in the ground, such as individual rocks or varying soil densities. With the known control devices such deviations should be counteracted. An exact directional control of the milling cutter is essential for accurate positioning of the milling slot in the ground.
  • the present invention has for its object to provide a method and a trench wall cutter for creating a slot in the ground, which allow in an efficient manner a precise position producing a slot in the ground.
  • the object is achieved according to the invention on the one hand by a method with the feature of claim 1 and on the other hand by a trench cutter with the features of claim 7.
  • the inventive method for creating a slot in the ground is characterized in that a position of the trench wall cutter is controlled in the slot via a plurality of fluid nozzles, which are supplied by a control means defined with fluid.
  • the invention is based on the recognition that the milling action of a cutting wheel depends on the supply of flushing fluid into the area of the cutting wheel. With sufficient fluid supply increased soil erosion is achieved.
  • a first basic idea of the invention is to selectively supply a fluid to individual regions of the trench wall cutter, in particular in a contact region of the cutting wheels with the ground. As a result, the removal rate of the individual cutting wheels and thus the orientation and position of the cutter can be influenced in the soil. Without great expenditure on equipment such a direction control of a trench wall cutter is possible.
  • At least two fluid nozzles may be provided, wherein each of the fluid nozzles may be individually controllable and may be individually adaptable in the amount of fluid delivered. Each fluid nozzle is assigned to a cutting wheel.
  • the region or contact region is to be understood as the working face, which is contacted by the cutting wheels of the trench wall cutter.
  • This area can be both an area lying below the respective cutting wheel or the cutting wheels and a lateral area which is contacted by milling teeth of the respective milling wheels. If only one pair of cutting wheels is provided, each of the cutting wheels can have a lower contact area with the ground. Thus, such a milling device would therefore have two lower areas in which the milling device is in contact with the ground.
  • the fluid nozzles can be assigned to individual contact areas with the ground or directly to individual cutting wheels or cutting wheel pairs. Also, the fluid nozzles may be associated with individual sides of the milling device.
  • a further aspect of the invention can be seen in the fact that a plurality of fluid nozzles, which are provided on the trench cutter according to the invention, a uniform ground quality or a uniform milling progress of the individual cutting wheels of the trench wall cutter, in particular by a change in the soil texture by the supplied fluid to allow.
  • a fluid quantity and / or a pressure of the fluid to be set by the control device.
  • the fluid nozzles can be assigned by the control device as needed, a separate fluid pressure or its own fluid flow rate, which is supplied to the cutting wheels or the bottom, in particular in the respective contact area.
  • the fluid may be water, a rinse suspension or a curable suspension which may form a building in the ground, such as a slot or seal wall.
  • the fluid can also be a lubricant, in particular water, which can promote the removal of soil material by means of the trench wall cutter.
  • fluid is injected into the area of the cutting wheels for attitude control. It has been found that the fluid can reach its potential with regard to changes in the soil condition of the soil material to be removed particularly expedient if it is fed directly, or at least in a region of the cutting wheels. Thus, it can be ensured that the fluid acts primarily in the region of the soil to be removed, which requires a treatment for matching the soil condition to further soil areas to be removed.
  • At least one fluid nozzle is assigned to each cutting wheel or pair of cutting wheels, wherein a different soil removal is set on the cutting wheels via a different fluid supply.
  • an alignment of the ground conditions in the total area of the cutting wheels of the trench wall cutter can be achieved and at the same time one possibly adverse supply of particularly high amounts of fluid in individual areas of the soil to be prevented.
  • an unfavorable mixing ratio of fluid and abraded soil material in the milled slot can be counteracted.
  • the fluid injected is a suspension which is mixed in the slot with the removed soil material to form a concrete.
  • this can harden with the soil material removed to form a structure.
  • the cutting wheels can be used advantageously for the mixing of the fluid with the removed soil material.
  • the suspension may be hardening, so that a single-phase method is made possible.
  • a base suspension for example a bentonite suspension, is first injected during milling. This serves for soil liquefaction and supporting the slot. Subsequently, especially when pulling the milling cutter, an additional medium can be injected, through which the soil mixture hardens. This allows a two-phase process.
  • a slot wall segment is formed in the slot. This may preferably be formed from fluid mixed with ablated soil material. Alternatively, the slot in the ground can also be freed of soil material and then filled with a suitable hardenable mass.
  • the trench wall cutter according to the invention with a trimming frame, in particular for creating a slot in a floor is characterized in that a plurality of fluid nozzles are provided, which can be supplied with fluid differently via a control device, wherein individual targeted changes in position of the trench wall cutter can be effected.
  • fluid nozzles to be arranged on the trench wall cutter, in particular in a lower region near the milling wheel. These can be controlled individually by means of the control device and designed to deliver individually adjustable amounts of fluid to the milling slot.
  • the fluid nozzles are arranged in the region of the cutting wheels and designed to supply fluid to a milling area in the ground in the vicinity of the cutting wheels, in particular below the same.
  • a targeted supply of fluid in the region of the soil, which is to be removed by the cutting wheels be possible.
  • At least one fluid nozzle is assigned to each cutting wheel or pair of cutting wheels.
  • this can also be a control nozzle, which can be designed to influence a position of the trench wall cutter in the ground. This can be made possible in particular by matching the soil condition in the region of the individual cutting wheels, in particular below the cutting wheels.
  • control device is connected to a device for determining the position of the trench wall cutter and is designed to supply a supply of fluid in the slot position correcting and / or position stabilizing. If a deviation of the orientation of the trench wall cutter from a vertical, or a previously defined orientation, for example, with a defined angle to the vertical, be recognized, the means for determining the position of the trench wall cutter can be configured to transmit the particular deviation to the control device.
  • the control device can counteract the deviation of the position. This can be promoted in particular by the fact that the control device ensures increased fluid supply to one of the lower regions of the trench wall cutter, which has a lower milling progress than the remaining cutting wheels.
  • the control device can enable a reduced supply of fluid in a region of the cutting wheels with increased milling progress, whereby a reduction of this milling progress to the Fräsfor Marinlomimony the remaining cutting wheels can be adjusted.
  • the trench wall cutter it is particularly preferred for the trench wall cutter to have an approximately cuboid base body and for at least one fluid nozzle to be arranged on at least one longitudinal side and / or one broad side of the base body.
  • the alignment of fluid nozzles in different spatial directions with respect to the main body of the milling device can allow a particularly accurate and efficient influencing of the soil properties in a certain area of the cutting wheels. This may be conducive in particular to a corrected orientation of the trench wall cutter with respect to any orientation relative to a horizontal.
  • the fluid nozzles on several sides of the main body of the trench wall cutter can thus be advantageous in particular for both a deviation of the position along a longitudinal side and a broad side of the base body, ie an inclined position to two spatial directions.
  • At least one fluid nozzle is arranged on each longitudinal side of the milling blade. So fluid nozzles can not only be assigned to individual cutting wheels or Fräsradformen, but also cutting wheels on the respective side of the milling blades.
  • Fig. 1 shows a trench wall cutter 10, which has at least one cutting wheel 20 at a lower area. This is arranged on a milling blade 40, wherein on both sides of the milling blade 40 at least one cutting wheel 20 can be provided (not shown).
  • the broken circles around the cutting wheels are the Abradsradius of the cutting wheels and these are not components of the devices.
  • the at least one cutting wheel 20 can in particular be driven by hydraulic means, which can be supplied with hydraulic fluid by means of the fluid lines 50.
  • lines 51 can be provided, by means of which a fluid can be supplied.
  • the fluid lines 51 can be provided in particular in a central region 60 of the milling frame 70.
  • At least two cutting wheels 20 or two pairs of cutting wheels 20 are arranged at the lower end of the milling device 10.
  • at least one cutting wheel 20 can be arranged on each side of the milling blade 40.
  • Four milling wheels 20 are particularly preferably provided on the milling device 10, wherein in each case two of the cutting wheels 20 are arranged on each side of the milling blade 40.
  • the fluid nozzles 30 may in particular be associated with individual cutting wheels 20, the fluid nozzles 30 providing fluid in a lower region of the cutting wheel.
  • the fluid nozzles 30 may in particular be provided between the intended cutting wheels 20 on one side of the milling blade 40.
  • fluid nozzles 31 can also be assigned to one side of the milling blade 40.
  • fluid nozzles 32 may be arranged on a milling cutter pair on an end face of the milling cutter 40.
  • the fluid nozzles 31 and 32 may be provided individually and independently of each other on the milling device 10.
  • at least the fluid nozzles 31 and the fluid nozzles 32 are provided.
  • the fluid nozzles 30 may be provided between the cutting wheels.
  • all fluid nozzles can be controlled individually by means of the control device 80.
  • each cutting wheel 20 individually as well as individual Fräsradministeren or one side of the Fräsradschildes 40 are supplied as needed fluid, whereby the soil condition of the soil material, which is to be removed by means of the cutting wheels 20, can be influenced.
  • a supply of fluid can take place in individual regions of the milling device, in particular on the basis of the position of the milling device in the bottom. This can be done both by increasing and decreasing the supply of fluid into the milling space.
  • the position of the milling device can be determined by means of a corresponding device 90, which can transmit the position data to the control device 80.
  • the fluid nozzles 30, 31, 32 can thus be used individually in particular as control nozzles for correcting the position of the milling device 10 in a floor.
  • the fluid may in particular be a suspension which is mixed with the soil material.
  • the suspension initially serves to liquefy the soil and does not cure yet.
  • a curing agent or binder is supplied, wherein from the soil-suspension mixture, a component can be formed in the soil.

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  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Paleontology (AREA)
  • Bulkheads Adapted To Foundation Construction (AREA)
  • Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
  • Road Repair (AREA)
EP16188961.3A 2016-09-15 2016-09-15 Verfahren und schlitzwandfräse zum erstellen eines schlitzes im boden Active EP3296468B1 (de)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP16188961.3A EP3296468B1 (de) 2016-09-15 2016-09-15 Verfahren und schlitzwandfräse zum erstellen eines schlitzes im boden
JP2017161810A JP6636999B2 (ja) 2016-09-15 2017-08-25 地盤中にトレンチを製作する方法及びトレンチカッタ
CN201710838092.4A CN107829456B (zh) 2016-09-15 2017-09-15 用于在地面产生沟槽的方法和沟槽切割器

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP16188961.3A EP3296468B1 (de) 2016-09-15 2016-09-15 Verfahren und schlitzwandfräse zum erstellen eines schlitzes im boden

Publications (2)

Publication Number Publication Date
EP3296468A1 EP3296468A1 (de) 2018-03-21
EP3296468B1 true EP3296468B1 (de) 2019-11-06

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EP16188961.3A Active EP3296468B1 (de) 2016-09-15 2016-09-15 Verfahren und schlitzwandfräse zum erstellen eines schlitzes im boden

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EP (1) EP3296468B1 (ja)
JP (1) JP6636999B2 (ja)
CN (1) CN107829456B (ja)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108442359B (zh) * 2018-05-25 2023-12-12 江苏科弘岩土工程有限公司 一种机电液气一体化双轮铣削搅地连墙机
DE202019102477U1 (de) * 2019-02-27 2020-06-03 Liebherr-Components Biberach Gmbh Antriebseinrichtung für eine Schlitzwandfräse
ES2911553T3 (es) * 2019-04-04 2022-05-19 Bauer Maschinen Gmbh Dispositivo de fresado de muros de pantalla y procedimiento para fresar una zanja de fresado en el suelo
BE1027872B1 (nl) * 2019-12-17 2021-07-15 Smet F&C Nv Werkwijze en inrichting voor het behandelen van uit kleiachtige en aanverwante materialen bestaande grondlagen
CN112095700B (zh) * 2020-09-18 2022-09-09 江苏科弘岩土工程有限公司 一种具有摆刀单元的双轮铣槽机铣头装置
EP4239130A1 (de) * 2022-03-01 2023-09-06 BAUER Maschinen GmbH Schlitzwandfräse und verfahren zum erstellen eines frässchlitzes im boden

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JP3523709B2 (ja) * 1995-03-29 2004-04-26 株式会社間組 立坑掘削機及び掘進方向制御方法
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Also Published As

Publication number Publication date
CN107829456B (zh) 2021-02-26
EP3296468A1 (de) 2018-03-21
JP2018044429A (ja) 2018-03-22
CN107829456A (zh) 2018-03-23
JP6636999B2 (ja) 2020-01-29

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