EP3725951A1 - Dispositif de benne et procédé de fabrication d'une fouille de fondation - Google Patents

Dispositif de benne et procédé de fabrication d'une fouille de fondation Download PDF

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Publication number
EP3725951A1
EP3725951A1 EP19170138.2A EP19170138A EP3725951A1 EP 3725951 A1 EP3725951 A1 EP 3725951A1 EP 19170138 A EP19170138 A EP 19170138A EP 3725951 A1 EP3725951 A1 EP 3725951A1
Authority
EP
European Patent Office
Prior art keywords
gripper
grab
slot
control unit
diaphragm wall
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
EP19170138.2A
Other languages
German (de)
English (en)
Other versions
EP3725951B1 (fr
Inventor
Jürgen Heilgemeir
Stefan Roth
Johannes Sedlmeier
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 ES19170138T priority Critical patent/ES2930156T3/es
Priority to EP19170138.2A priority patent/EP3725951B1/fr
Priority to CN202010305259.2A priority patent/CN111827389A/zh
Publication of EP3725951A1 publication Critical patent/EP3725951A1/fr
Application granted granted Critical
Publication of EP3725951B1 publication Critical patent/EP3725951B1/fr
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
    • E02F5/025—Dredgers or soil-shifting machines for special purposes for digging trenches or ditches with scraper-buckets, dippers or shovels
    • 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
    • E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
    • 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
    • E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
    • E02F3/36—Component parts
    • 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
    • E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
    • E02F3/36—Component parts
    • E02F3/40—Dippers; Buckets ; Grab devices, e.g. manufacturing processes for buckets, form, geometry or material of buckets
    • E02F3/413—Dippers; Buckets ; Grab devices, e.g. manufacturing processes for buckets, form, geometry or material of buckets with grabbing device
    • 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
    • E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
    • E02F3/36—Component parts
    • E02F3/42—Drives for dippers, buckets, dipper-arms or bucket-arms
    • E02F3/43—Control of dipper or bucket position; Control of sequence of drive operations
    • 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
    • E02F3/46—Dredgers; Soil-shifting machines mechanically-driven with reciprocating digging or scraping elements moved by cables or hoisting ropes ; Drives or control devices therefor
    • E02F3/47—Dredgers; Soil-shifting machines mechanically-driven with reciprocating digging or scraping elements moved by cables or hoisting ropes ; Drives or control devices therefor with grab buckets
    • E02F3/475—Dredgers; Soil-shifting machines mechanically-driven with reciprocating digging or scraping elements moved by cables or hoisting ropes ; Drives or control devices therefor with grab buckets for making foundation slots
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/26—Indicating devices
    • E02F9/264—Sensors and their calibration for indicating the position of the work tool
    • E02F9/265—Sensors and their calibration for indicating the position of the work tool with follow-up actions (e.g. control signals sent to actuate the work tool)

Definitions

  • the invention relates to a trench wall gripping device for creating a slot in the ground, with a carrier device and a trench wall gripper, which is mounted on the carrier device so as to be essentially vertically adjustable, the trench wall gripper having a gripper frame at the lower end of which two gripper blades are arranged, which are arranged by means of an actuating device are adjustable between an open position for receiving soil material and a closed position for discharging soil material that has been taken up from the slot, according to the preamble of claim 1.
  • the invention further relates to a method for creating a slot in the ground, wherein a trench wall gripper, which has a gripper frame, at the lower end of which two gripper blades are arranged, which by means of an actuating device between an open position for picking up soil material and a closed position for removing soil material are adjustable out of the slot, the diaphragm wall grab is introduced essentially vertically into a floor with open grab shovels, the grab shovels are closed for gripping and picking up soil material and the diaphragm wall grab with the picked up soil material is pulled out of the ground to form the slot, according to the preamble of claim 8.
  • a diaphragm wall grab of the generic type goes from the EP 1 950 353 B1 emerged. Such devices are used to excavate recesses or slots in the floor, which are primarily required to create so-called slotted or sealing walls in the floor.
  • the diaphragm wall grab is usually lowered into the ground with the grab shovels open, the grab shovels penetrating into the upper area of the ground. By closing the grab shovels, soil material is gripped and picked up in the diaphragm wall grab with the grabbing blades then closed. The filled diaphragm wall grab is then pulled out of the slot and moved to an emptying point. A new gripping process is then carried out until the desired final depth of the slot is reached.
  • Slots for diaphragm or sealing walls can reach depths of up to 50 meters or deeper.
  • the trench cross-section generated with the diaphragm wall grab is in the range of about one meter in width and between 1.5 and 3 meters in length. Because of this slot cross-section and the usual slot depths, there is often no possibility for a grab operator to visually check whether and to what extent a diaphragm wall grab is filled during a gripping process.
  • the aim is to carry out the specified slot depth with as few gripping and emptying processes as possible.
  • the process of pulling the diaphragm wall gripper out of the slot and moving it to an emptying position and then lowering it back into the working position is particularly time-consuming.
  • the invention is based on the object of specifying a trench wall gripping device and a method for creating a slot in the ground with which a slot can be produced particularly efficiently.
  • the trench wall gripping device is characterized in that a determination device is provided which is designed to determine an actual amount of soil material that is picked up by the gripper blades in the closed position, that a control unit is provided which is connected to the determination device and in which a target amount of soil material to be picked up by the diaphragm wall grab is stored, and that the control unit is designed to compare the recorded actual amount with the stored target amount and to output a signal to repeat a gripping process when the recorded actual amount of the stored target amount deviates.
  • a basic idea of the invention can be seen in using a control unit to monitor a degree of filling of the grab shovels in the closed position in order to open the grab shovels in the slot in the event of insufficient or excessive filling and to repeat the gripping process.
  • a control unit to monitor a degree of filling of the grab shovels in the closed position in order to open the grab shovels in the slot in the event of insufficient or excessive filling and to repeat the gripping process.
  • the stored target quantity can represent an individual value, in particular a lower limit value, or a quantity range with a lower and upper limit value.
  • the control unit can only output a notification signal to a machine operator, who then decides himself to open the gripper blades.
  • the actual amount of soil material in the diaphragm wall grab is automatically determined by the control unit in an automatic mode by a determination device.
  • a determination device By means of a determination device, an actual quantity can be determined with high reliability even in the case of relatively deep slots.
  • the predefined and stored value of the setpoint amount changes in accordance with software in the control unit, in particular increases with increasing slot depth.
  • the number of repeated gripping processes can also have an influence on the specified target quantity, the target quantity being able to decrease with the number of repeated gripping processes before the diaphragm wall gripper is emptied again.
  • control unit can indicate to a machine operator in accordance with the signal that the gripper shovels are to be opened in order to ensure an efficient lifting process.
  • the gripper blades can be opened automatically.
  • the further process of repeating the gripping process can also be initiated automatically by the control unit in this automatic mode.
  • a preferred development of the invention consists in that the diaphragm wall grab is mounted on the carrier device with a rope or a rod and that the determination device has a force measuring element in which a weight acting on the rope or the rod is a measure of the actual amount picked up Soil material is detectable.
  • a force measuring element in particular When the diaphragm wall grab is raised after the grab shovels have been closed and the soil material has been picked up, a reliable determination can be made of how much filling the diaphragm wall grab has picked up. If this actual amount of soil material picked up is equal to the specified target amount, the diaphragm wall grab is moved out of the slot to the emptying position.
  • the determination device has a displacement measuring element with which a penetration depth of the trench wall grab into the ground can be detected before the grab shovels close.
  • the penetration depth detected in this way can be forwarded to the control unit, wherein the penetration depth can influence the control.
  • the penetration depth allows a conclusion to be drawn about the (expected) filling level of the grab shovels.
  • control unit is designed to automatically raise the trench wall grab by means of a lifting device to a predeterminable height above the bottom of the trench and to lower it back into the ground from the predefinable height with the gripper blades open, in order to repeat a gripping process.
  • the control unit can preferably make the height of the lifting of the diaphragm wall gripper dependent on the recorded actual quantity and / or on the penetration depth during the previous gripping process. With an increasing height and a subsequent lowering of the diaphragm wall grab, preferably in a free-fall mode, the opened grab shovels can penetrate more strongly into the ground and thus a higher degree of filling. The filling level is reduced by lowering the height.
  • the control unit is designed to switch from an automatic mode for performing a gripping process to a manual operating mode when the recorded actual amount in the diaphragm wall grab corresponds to the stored target amount.
  • the control unit is designed to automatically pull the diaphragm wall gripper out of the slot in the floor and move it to an emptying position in an automatic mode for performing a gripping process after the target amount has been reached. In the same way, a return into the slot for a further gripping process can also take place in the automatic mode. This results in an efficient automatic operation of the diaphragm wall gripping device.
  • the method according to the invention is characterized in that an actual amount of soil material is determined by means of a determination device, which is picked up by the grab shovels in the closed position, that the determination device is connected to a control unit, which the recorded actual amount with a predetermined target -Compares the amount of soil material to be picked up by the diaphragm wall grab, and that the control unit outputs a signal to repeat a gripping process if the recorded actual amount deviates from the stored target amount.
  • the method according to the invention can in particular be carried out with the previously described trench wall gripping device.
  • the advantages described above can be achieved.
  • control unit automatically opens the gripper blades when the recorded actual amount deviates from the stored target amount. This avoids unnecessary lifting operations.
  • the further process of repeating the gripping can preferably also be carried out in automatic mode.
  • a preferred variant of the method according to the invention consists in that the control unit for repeating a gripping process lifts the trench wall grab by means of a lifting device to a predeterminable height above the bottom of the trench and from there lowered it back into the ground with the grab shovels open.
  • the lowering can in particular take place in a free fall mode of the lifting device.
  • the control unit can vary the height to which the diaphragm wall grab is raised again.
  • a further advantageous embodiment of the method according to the invention is that the control unit switches from an automatic mode for performing a gripping process to a manual operating mode when the recorded actual amount in the diaphragm wall grab corresponds to the stored target amount.
  • a partially automatic system is implemented here, whereby a differentiated emptying of the gripper is still made possible by an operator.
  • control unit automatically pulls the diaphragm wall gripper out of the slot in the ground and moves it to an emptying position when the target amount is reached by the control unit in an automatic mode for performing a gripping process. This enables completely automatic operation, which supports efficient operation of the diaphragm wall gripping device.
  • Another preferred embodiment variant consists in that the diaphragm wall grab is introduced into the ground in a free-fall module.
  • a holding device such as the winch of a tether, can be released so that the trench wall grabber accelerates due to its weight and can penetrate the ground.
  • the diaphragm wall grab is advantageous for the diaphragm wall grab to be inserted into the soil with a predetermined force.
  • the diaphragm wall gripping device is provided with a linear element, in particular a hydraulic cylinder, with which the diaphragm wall gripper can be moved downward with a predetermined force.
  • the slot is filled with a suspension when it is created or subsequently, and that the suspension hardens in the slot and a slot wall segment is thus produced.
  • the invention is explained below with the aid of a preferred exemplary embodiment which is shown schematically in the single drawing figure.
  • the drawing shows a side view of a trench wall gripping device 10 according to the invention in an already partially created slot 7 in the floor 5.
  • the diaphragm wall gripping device 10 has a diaphragm wall gripper 12 with a scaffold-like gripper frame 14. At a lower end of the gripper frame 14, two gripper blades 16 are mounted by means of swivel joints 17. The two gripper blades 16 are in an open position in the illustration shown, teeth 18 arranged on the gripper blades 16 being directed downwards. In this open position, the trench wall grab 12 is lowered into the floor 5, the teeth 18 penetrating the floor 5.
  • a slide element 26 is mounted so that it can move linearly along a longitudinally directed guide 15 on the gripper frame 14.
  • An eye of the piston rod 24 on the one hand and upper ends of two levers 28 on the other hand are articulated on the slide element 20.
  • the lower ends of the levers 28 are connected in an articulated manner to one gripper shovel 16 each.
  • the slide element 26 By extending the piston rod 24 downward from the hydraulic cylinder 22, the slide element 26 is moved downward along the linear guide 15.
  • the levers 28 exert a downward pressure on the gripper blades 16. These are moved around their respective swivel joints 17 on the gripper frame 14 from the shown open position into a closed position in which the two gripper blades 16 rest against one another. During this closing movement, the gripper blades 16 penetrate the soil 5 with their teeth 18 and thus pick up soil material between the gripper blades 16.
  • the diaphragm wall gripper 12 is pulled upwards by means of a cable 32 from a carrier device (not shown).
  • the rope 32 stands with the Trench wall grab 12 via a suspension device 30 in connection, which is attached to an upper end of the grab frame 14.
  • a determination device 40 can be arranged, which is designed, for example, as a force measuring element, in particular a so-called load cell. In this way, a suspension load which is caused by the diaphragm wall gripper 12 can be determined.
  • a weight of the soil material picked up by the grab shovels 16 can be determined as a value for the actual quantity by a simple comparison of the suspension load before and after closing.
  • the ascertained measured value is forwarded by the ascertaining device 40, preferably wirelessly, to a control unit, which is preferably located on the carrier device (not shown).
  • the value of the recorded actual amount is compared with a stored value of a desired amount, which represents a measure of the soil material to be at least picked up by the diaphragm wall grab. If the actual amount picked up is less than the intended set amount, then pulling the diaphragm wall gripper 12 upwards out of the slot 7 is not continued and the gripper blades 16 are opened again from the closed position to the open position shown in the figure. The gripper blades 16 are still emptied in the slot 7.
  • the trench wall grab 12 can then be moved downwards again, preferably in a free fall mode, in order for the grab blades 16 with the teeth 18 to penetrate further into the ground 5.
  • the gripper blades 16 are then closed again and, as previously described, the trench wall gripper 12 is raised again with a determination of the actual amount of soil material picked up and a comparison with the target amount. If the actual amount is still less than the target amount, the process is repeated, optionally with a different, in particular greater, predetermined gripper height.
  • the diaphragm wall gripper 12 is pulled completely out of the slot 7 and moved to an emptying position. The trench wall gripper 12 can then be moved back again into the slot 7 for a new gripping process.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Paleontology (AREA)
  • Bulkheads Adapted To Foundation Construction (AREA)
  • Earth Drilling (AREA)
  • Laying Of Electric Cables Or Lines Outside (AREA)
  • Element Separation (AREA)
  • Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
  • Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)
EP19170138.2A 2019-04-18 2019-04-18 Dispositif de benne et procédé de fabrication d'une fouille de fondation Active EP3725951B1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
ES19170138T ES2930156T3 (es) 2019-04-18 2019-04-18 Dispositivo de cuchara para muros pantalla y procedimiento para crear una zanja en el suelo
EP19170138.2A EP3725951B1 (fr) 2019-04-18 2019-04-18 Dispositif de benne et procédé de fabrication d'une fouille de fondation
CN202010305259.2A CN111827389A (zh) 2019-04-18 2020-04-17 用于在土地中生成槽的槽壁抓夹设备和方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP19170138.2A EP3725951B1 (fr) 2019-04-18 2019-04-18 Dispositif de benne et procédé de fabrication d'une fouille de fondation

Publications (2)

Publication Number Publication Date
EP3725951A1 true EP3725951A1 (fr) 2020-10-21
EP3725951B1 EP3725951B1 (fr) 2022-09-14

Family

ID=66239836

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19170138.2A Active EP3725951B1 (fr) 2019-04-18 2019-04-18 Dispositif de benne et procédé de fabrication d'une fouille de fondation

Country Status (3)

Country Link
EP (1) EP3725951B1 (fr)
CN (1) CN111827389A (fr)
ES (1) ES2930156T3 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03241118A (ja) * 1990-02-19 1991-10-28 Fujita Corp 地中連続壁用溝の自動掘削装置
JPH08239864A (ja) * 1995-03-03 1996-09-17 Ando Corp バケット式掘削機およびその掘削方法
JP2001064993A (ja) * 1999-08-25 2001-03-13 Konoike Constr Ltd 掘削揚土作業支援システム
EP1950353A1 (fr) 2007-01-26 2008-07-30 BAUER Maschinen GmbH Dispositif d'excavation du sol
EP3144260A1 (fr) 2015-09-09 2017-03-22 BAUER Maschinen GmbH Engin et procede de levage et d'abaissement d'un element de levage

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07217358A (ja) * 1994-02-02 1995-08-15 Nippon Sharyo Seizo Kaisha Ltd バケット掘削装置
FR2771429B1 (fr) * 1997-11-25 2000-02-18 Sol Comp Du Benne de forage a correction de verticalite

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03241118A (ja) * 1990-02-19 1991-10-28 Fujita Corp 地中連続壁用溝の自動掘削装置
JPH08239864A (ja) * 1995-03-03 1996-09-17 Ando Corp バケット式掘削機およびその掘削方法
JP2001064993A (ja) * 1999-08-25 2001-03-13 Konoike Constr Ltd 掘削揚土作業支援システム
EP1950353A1 (fr) 2007-01-26 2008-07-30 BAUER Maschinen GmbH Dispositif d'excavation du sol
EP3144260A1 (fr) 2015-09-09 2017-03-22 BAUER Maschinen GmbH Engin et procede de levage et d'abaissement d'un element de levage

Also Published As

Publication number Publication date
ES2930156T3 (es) 2022-12-07
CN111827389A (zh) 2020-10-27
EP3725951B1 (fr) 2022-09-14

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