Classifications

• • E—FIXED CONSTRUCTIONS
  • E21—EARTH OR ROCK DRILLING; MINING
  • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
  • E21B44/00—Automatic control systems specially adapted for drilling operations, i.e. self-operating systems which function to carry out or modify a drilling operation without intervention of a human operator, e.g. computer-controlled drilling systems; Systems specially adapted for monitoring a plurality of drilling variables or conditions
  • E21B44/02—Automatic control of the tool feed
  • E21B44/04—Automatic control of the tool feed in response to the torque of the drive ; Measuring drilling torque
• • 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
  • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
  • E02D7/00—Methods or apparatus for placing sheet pile bulkheads, piles, mouldpipes, or other moulds
  • E02D7/22—Placing by screwing down
• • 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
  • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
  • E02F9/20—Drives; Control devices
  • E02F9/2025—Particular purposes of control systems not otherwise provided for
• • 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
• • 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
• • E—FIXED CONSTRUCTIONS
  • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
  • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
  • E02D2250/00—Production methods
  • E02D2250/0038—Production methods using an auger, i.e. continuous flight type

Definitions

• the invention relates to a method for soil cultivation with a construction device which has at least one rotary drive unit for rotatingly driving a soil cultivation tool and at least one feed unit with which the soil cultivation tool is introduced into the soil, according to the preamble of claim 1.
• the invention further relates to a construction device for soil cultivation with a rotary drive unit for rotatingly driving a soil cultivation tool and a feed unit with which the soil cultivation tool can be introduced into the soil in a driving direction, according to the preamble of claim 10.
• Construction equipment for soil cultivation is, for example, drilling equipment for pile drilling or trench wall milling for producing diaphragm walls in the ground.
• a drilling tool is driven in rotation via a drill drive and is usually introduced vertically into the ground by means of a feed unit.
• a feed unit For an efficient creation of a borehole, it is essential that the speed and a feed rate are adjusted to one another.
• drilling rigs are provided with an electronic control in which preselected programs are provided, which are provided by a drilling machine operator can be selected depending on the type of soil.
• programs for example, a speed of rotation of the drilling tool and a feed rate can be specified for a certain type of soil.
• the control will then use these setpoint values to set and regulate the torque and feed force on the drilling device.
• the resulting actual values can be measured and compared with the setpoint values, so that a conventional control is provided.
• the result is a trench wall cutter with a control system that records various parameters during operation, such as the position of the axes of rotation, the depth and the direction of advance.
• the control is designed to use the determined parameters to control the milling machine in order to create a precisely positioned slot in the ground.
• the invention is based on the object of specifying a method and a construction device for soil cultivation with which efficient soil cultivation is made possible in a particularly reliable manner.
• a control and evaluation unit is provided with which at least one input variable of the rotary drive unit and / or the feed unit is recorded and stored during soil cultivation, at least one resulting output variable is recorded and stored on the soil cultivation tool and the at least an input variable is related to the resulting output variable, a tillage value being determined and stored.
• a basic idea of the invention is that at least one input variable and at least one output variable are recorded continuously or at regular intervals during soil cultivation by a control and evaluation unit and set in relation to one another. If, for example, a certain torque is applied to the rotary drive unit as an input variable, the rotational speed of the soil cultivation tool, such as a drilling tool or a milling wheel, which is set under the influence of the soil, allows conclusions to be drawn about the type of soil, such as whether it is firm or loose.
• the control and evaluation unit can thus make a statement about the tillage capability by comparing the input variable and the resulting output variable, with a tillage value being determined.
• This tillage value can be displayed to an implement operator or taken directly into account in the control for the further operation of the drive units and the feed units.
• a statement can be made about the respective worked soil layer, which is helpful for more efficient setting of the input variables, i.e. the operating parameters, by the machine operator or by the control itself. Machining can thus take place with the most efficient or effective setting of the drive units, in particular the rotary drive unit and the feed unit.
• a preferred development of the method according to the invention consists in that the at least one input variable and the at least one output variable are recorded and stored over time and / or the tunneling distance. If, for example, several bores or slots are to be created at a construction site, which are usually close to one another or not too far away, the stored input and output variables, which were recorded and saved over time or the tunneling route in one work step, can be used to create a Repeat program can be used. In particular, a profile with the respective soil cultivation values can be created over a tunneling section, that is to say a drilling depth or a slot depth, and a data record with preferred operating parameters for the input variables can be assigned to this.
• a torque of the rotary drive unit, a feed force of the feed unit and / or a pressure or a volume in a hydraulic system for driving the rotary drive unit and / or the feed unit is selected as the input variable.
• the rotary drive unit can be a drill drive or a milling wheel drive.
• the torque can be recorded immediately.
• the torque and thus the tapped power can be recorded indirectly via parameters in the hydraulic system, in particular a pressure or a volume flow in the hydraulic system.
• the feed unit can take place via a winch or via actuating cylinders, which can also be operated with a hydraulic drive system.
• the feed unit can be a load or the weight of the trench wall cutter, which is suspended on a winch cable and reduces the load by a corresponding counterforce of the winch.
• the load can be determined using appropriate force sensors or arithmetically using a winch torque, taking into account the weight of the trench wall cutter, and can be included in the calculation of the tillage value.
• the output variables are in a functional relationship with an assigned input variable.
• a rotational speed and / or a feed rate of the soil cultivation tool are selected as the output variable.
• a torque on a rotary drive unit is related to the rotational speed of a soil cultivation tool, for example a drilling tool or a milling wheel.
• a feed force or a surcharge is associated with a resulting feed rate.
• a given feed force naturally results in a higher feed speed compared to a firmer floor.
• the advance speed can also be referred to as the penetration or advance speed into the ground.
• control unit can also specify a speed as an input variable, in which case an emerging torque or a power tap on the rotary drive unit is then recorded as the resulting output variable.
• the control and evaluation unit has a database in which preferred input variables for certain soil cultivation values are stored.
• the database can already be specified when a construction device is delivered or it can be uploaded by a control center during operation or provided with new or supplemented values and maintained.
• the device driver or the control and evaluation unit itself to save preferred data sets, i.e. preferred input variables, possibly with output variables for certain tillage values, which are created for a respective construction site or for the respective device or have been determined.
• the database can thus represent an expert system, with automatic improvement and modification of the stored data records also being possible on the basis of a preferably self-learning logic of the control and evaluation unit.
• a current tillage value is compared with the tillage values stored in the database by the control and evaluation unit and that, depending on the comparison, a current input variable is changed or a change is recommended to a drill driver. If, for example, the control and evaluation unit recognizes through a comparison of the input variable, such as the torque, with a resulting output variable, i.e. an established speed of the drilling tool or the milling wheel, that a soil layer with a changed strength and thus with a different soil tillage value is being penetrated The control and evaluation unit change the input variables according to the currently determined soil tillage value.
• the input variable such as the torque
• control or evaluation unit can use the input variable according to the determined value Change the data record or display it to the operator on a monitor, for example.
• the previous input variable can be replaced by the more suitable input variable for the tillage value.
• an applied torque would be changed as a function of the established tillage value after evaluating the database.
• a soil profile is determined and stored by the evaluation and control unit on the basis of the soil cultivation values determined during the soil cultivation over the tunneling section.
• Correspondingly stored data in the database can be assigned a specific soil type, such as clay, sand, gravel, stone, etc., to a tillage value.
• These values and thus also a soil profile can be queried from a control center via the control and evaluation unit via a remote data connection, which is preferably available.
• construction equipment can not only be used for working the soil, but it can also be used as a probing or analysis tool for exploring a soil profile.
• the control and evaluation unit determine preferred input variables for the ground profile via the tunneling route and store them as a data record in the database.
• a sample data set can be created for a drilling at a construction site, for example a first torque and a first feed force up to a first drilling depth, then a second torque with a second feed force up to a second drilling depth, and so on.
• Such a data record for a borehole or a slot can then be called up for a further borehole at the same construction site. It can be assumed here that a soil profile does not or hardly changes at a construction site, in particular when holes or slots are created close to one another. This is often the case when creating pile walls or diaphragm walls. Using the data of the sample hole or the sample slot, the further holes or slots can be created effectively even by less experienced equipment operators.
• the control and evaluation unit determines and stores various data sets for a soil profile, which are preferably determined and differentiated with regard to fast propulsion or a speed that is gentle on wear. It is taken into account that there is no general optimal parameter setting for the input variables in soil cultivation. Rather, the preferred input variables depend on certain aspects or objectives in the cultivation of the soil. For example, particularly fast soil cultivation, that is to say rapid advance, may be desired, so that higher speeds or higher feed forces are to be provided in contrast to soil cultivation that is as low-wear or energy-saving as possible. Other objectives can also be specified, such as noise-friendly work. For an established tillage value, different data sets can therefore be stored for different objectives, which are categorized as efficient propulsion, particularly low-wear, energy-saving or low-noise, for example.
• the method according to the invention can be used in the various soil cultivation variants.
• a particularly preferred variant of the method consists in that drilling with a drilling tool is carried out as soil cultivation.
• the drilling can be continuous drilling, for example with an endless worm, or discontinuous drilling, for example with a drilling bucket or a simple auger.
• the method according to the invention can also be used in double-head drilling, in which at least two rotary drive units are provided.
• a first rotary drive unit can be provided for an internal drilling tool, while a further rotary drive unit is arranged for an external drill pipe.
• rock drilling is also included, which can be carried out, for example, with anchor or HDI drilling in an approximately vertical wall or even in the ceiling area in a tunnel.
• a further preferred variant of the method can be seen in the fact that milling with a trench wall cutter is carried out as soil cultivation.
• a trench wall cutter has at least one pair, preferably two pairs, of cutting wheels driven in rotation.
• the milling of a milling slot can be done in one One-phase, two-phase or a CSM® process can be carried out in which a soil mortar mixture is produced in-situ in the milling slot by the milling machine.
• One or more cutting wheel drives can be provided.
• control and evaluation unit can also take into account a supply of binding agent, rinsing and / or support suspension.
• a supply of binding agent, rinsing and / or support suspension In the case of a CSM® milling process in particular, it may be useful to adapt the supply of support and binding agent suspension when the speed and the advance speed change.
• the construction device according to the invention for soil cultivation is characterized in that a control and evaluation unit is provided which is designed to detect and store at least one input variable of the rotary drive unit and / or the feed unit during soil cultivation, and to detect at least one resulting output variable on the soil cultivation tool and to store and to relate the at least one input variable to the resulting output variable, wherein a soil cultivation device can be determined and stored.
• a control and evaluation unit is provided which is designed to detect and store at least one input variable of the rotary drive unit and / or the feed unit during soil cultivation, and to detect at least one resulting output variable on the soil cultivation tool and to store and to relate the at least one input variable to the resulting output variable, wherein a soil cultivation device can be determined and stored.
• a wide variety of construction equipment can be used for soil cultivation and, in particular, for soil removal.
• a particularly preferred construction device according to the invention is that this is a drilling device in which a drilling tool is driven in rotation by means of the at least one rotary drive unit.
• the drilling tool can be a drilling bucket or a screw auger, which can preferably be moved vertically along a mast or a leader.
• the drilling device can also have a multi-axis adjustable drilling carriage in space, such as is used for anchor drilling or HDI drilling.
• all drilling devices can be used, for example for double-head drilling or drilling devices with casing machines, in which drill pipes can be inserted into the ground.
• this is a trench wall cutter, in which cutting wheels by means of the at least a rotary drive unit are driven.
• the trench wall cutter has one or more pairs of cutting wheels at the lower end of a cutting frame.
• the milling frame can be suspended from a rope and guided in the milling slot via corresponding guide plates on the milling frame.
• the trench wall cutter can also be guided and movable on a guide rod.

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• Engineering & Computer Science (AREA)
• Mining & Mineral Resources (AREA)
• Life Sciences & Earth Sciences (AREA)
• Civil Engineering (AREA)
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• Geology (AREA)
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• Physics & Mathematics (AREA)
• Fluid Mechanics (AREA)
• Environmental & Geological Engineering (AREA)
• Geochemistry & Mineralogy (AREA)
• Mechanical Engineering (AREA)
• Earth Drilling (AREA)
• Agricultural Machines (AREA)

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• 2016
  • 2016-09-21 EP EP16189878.8A patent/EP3299523B1/de active Active
  • 2016-09-21 HU HUE16189878A patent/HUE054961T2/hu unknown
• 2017
  • 2017-06-28 JP JP2019515870A patent/JP7160467B2/ja active Active
  • 2017-06-28 WO PCT/EP2017/065982 patent/WO2018054566A1/de active Application Filing
  • 2017-06-28 KR KR1020197008097A patent/KR102409875B1/ko active IP Right Grant
  • 2017-06-28 CN CN201780058245.1A patent/CN109891031B/zh active Active
  • 2017-06-28 CA CA3035986A patent/CA3035986C/en active Active
  • 2017-07-03 US US15/641,007 patent/US10577913B2/en active Active

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