EP1359257B1 - Bohrvorrichtung und Verfahren zum Erstellen einer Bohrung im Boden - Google Patents

Bohrvorrichtung und Verfahren zum Erstellen einer Bohrung im Boden Download PDF

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Publication number
EP1359257B1
EP1359257B1 EP03009634A EP03009634A EP1359257B1 EP 1359257 B1 EP1359257 B1 EP 1359257B1 EP 03009634 A EP03009634 A EP 03009634A EP 03009634 A EP03009634 A EP 03009634A EP 1359257 B1 EP1359257 B1 EP 1359257B1
Authority
EP
European Patent Office
Prior art keywords
boring
strings
yoke
string
drill
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.)
Expired - Lifetime
Application number
EP03009634A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1359257A1 (de
Inventor
Erwin Dipl.-Ing. Wirtsch.-Ing. Stötzer
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
Priority claimed from DE10301072A external-priority patent/DE10301072A1/de
Application filed by Bauer Maschinen GmbH filed Critical Bauer Maschinen GmbH
Publication of EP1359257A1 publication Critical patent/EP1359257A1/de
Application granted granted Critical
Publication of EP1359257B1 publication Critical patent/EP1359257B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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

Definitions

  • the invention relates to a drilling apparatus according to the preamble of claim 1 and a method for creating a Bore in the ground according to the preamble of claim 5.
  • the drill radii of the adjacent drillstrings overlap.
  • the cutting devices must the individual drill string axially offset from each other to be ordered.
  • This is usually done by a so-called yoke.
  • This is a bar-shaped component in which the drillstrings are rotatably mounted and interconnected. The yoke can continue to have the task, possibly remaining soil material webs additional shear between the adjacent holes and thus to participate in the comminution of the soil material.
  • the range of drill strings from the drill bit to the yoke serves the so-called preparation of the soil, i. the Crushing the soil material and feeding the suspension.
  • preparation of the soil i. the Crushing the soil material and feeding the suspension.
  • the crushing of the soil material are not only the actual cutting devices for breaking and shearing of the soil at the top of the drill strings, but also the adjacent conveyor spirals, which one not insignificant shear and thus crushing effect on the Exercise soil material.
  • the curable suspension is supplied.
  • the mixing elements are arranged, which for the best possible mixing and homogenization the curable suspension with the comminuted Provide soil material.
  • JP-A-10292362 Another drilling device is disclosed in JP-A-10292362.
  • This known drilling device also has three side by side arranged, drivable drivelines on, which are coupled together at their bottom end via a yoke are.
  • JP-A-08027772 discloses a harrow with two staggered drill strings, which are connected by an entangled yoke.
  • the invention has for its object to provide a drilling apparatus and a method with which holes for high-quality foundation elements in the ground can be created particularly economically and with high directional stability.
  • the drilling device is characterized, inter alia characterized in that the yoke in the area of the offset middle Drill strings an entanglement in the direction of the offset having. So the yoke is not a straight beam formed, but has according to the offset of the middle Bohrstranges an angular displacement, a so-called Entanglement on. This allows the arrangement of the yoke relatively close to the drill bits, resulting in a good stiffening of the Drill strands to each other near the cutting leads leads to which the largest torques at the individual drill strings attack.
  • one conventional straight beam yoke allows the invention Entanglement a complete or at least partial Compensation of different drill string lengths in the treatment area.
  • the distance of the drill bits to the yoke can be so despite the axial offset of the individual drill strings the same or at least approximately balanced.
  • the offset of the middle drill string is designed according to the invention that this drill string is axially shorter than the outer drillstrings is.
  • the Bohrradien the cutting means of the adjacent drillstrings overlap.
  • the distance between the center axes of the Drill strands to each other smaller than the bore diameter of respective cutting device.
  • drill radii can also be cutting inserts be formed on the yoke, which for as constant as possible Ensure bore wall width.
  • a suspension feed for a curable suspension is provided on at least one of the drill strings.
  • the suspension feed is provided on the middle drill string formed, which in relation to the other drill strings in particular is set back.
  • the supply takes place via a corresponding Pumping device via the tubular design Drill string, with the exit at or near the drill bit he follows.
  • the mixing elements can Mixing or conveying paddle, which is substantially radial protrude from the drill string.
  • the cutting device arranged a conveyor coil on the respective drill string is, thereby forming a treatment area below the yoke is.
  • the helical Forderwendel serves for Removal of the crushed soil material from the Cutting device and a further crushing of the chipped material.
  • the feeder a first mixing, the so-called processing the mixture of the soil material and the suspension.
  • the conveyor coil can have any length and also made of segments with different pitch and diameter be constructed.
  • a particularly compact arrangement is after the invention achieved in that the conveyor coil is not has more than one pitch. Already with a half to a pitch is a reliable removal of the soil material and a desired additional comminution effect reached.
  • the method according to the invention is characterized among other things by that the respective treatment areas of the individual drill string below the yoke by pivoting of the yoke in the direction of the offset of the middle Drill strings are at least partially offset each other.
  • This will be a particularly uniform crushing of the soil material achieves what for the creation of drilling walls represents a significant advantage.
  • the yoke can be arranged very close to the drill bits, resulting in a good stiffening and thus a high directional stability when drilling down the holes contributes.
  • the drill strings with be lowered at a continuous speed.
  • this may be carried out in a uniform and continuous manner, wherein in this case by the special inventive arrangement of Drilling device already a mixing of the crushed soil material can be done.
  • a drill 1 for the creation represented by mortar eyes. It is on a vertical Mast 2, which is also in two planes to the vertical axis is pivotable, a drilling device 3 attached. On one along the drilling mast 2 movable carriage 4 are located there are three rotary drives 5 ', 5' ', 5' '', which each have a drive device 6 ', 6' ', 6' '' have. The three rotary drives 5 ', 5' ', 5' '' are mounted on a common carriage 4 and can only be moved together along the mast 2.
  • each Abtriebseinrichung 6 ', 6' ', 6' '' is a drill string 7 ', 7' ', 7' '' arranged.
  • drill strings 7 ', 7' ', 7 '' ' are essentially tubular components, which at their lower, the indicated hole 8 facing Ends drill bits 9 ', 9' ', 9' '' and one each Cutting device 10 ', 10' ', 10' '' for cutting the soil exhibit.
  • To the cutting devices 10 ', 10' ', 10' '' close to conveyor coils 11 ', 11' ', 11' '', which have at most one to three pitches.
  • a common guide 13 of the three drill strings Above the conveyor coils 11 ', 11' ', 11' '' of the three drill strings 7 is a common guide 13 of the three drill strings. Above the common guide 13 are on the drill strings 7 ', 7' ', 7' '' paddle or mixing elements 14 attached, which mix the drilled cuttings. These Mixing elements 14 have a corresponding projection to the To overlap each area of action, as they in terms of height are arranged one above the other. In order to reduce the effective range of the paddle or to increase mixing elements 14, they are in a particular Angle to the horizontal plane arranged. That's it possible to make a wall of overcut mortar columns.
  • the length of the mixing area on the drill strings 7 ', 7' ', 7 '' ' has a smaller proportion of the total length of Drill strands to ensure sufficient torque for the mixing of the To raise soil.
  • Located above the paddle assembly turn a common leadership 15 for the three Boring.
  • This guide 15 sits movably on the three Drill strands 7 ', 7' ', 7' '' and can along the residual length move the three drill strings.
  • the movable guide 15 has a funnel-shaped formation 16, with which they at Drilling the drill strings into a funnel-shaped receptacle 17 engages which rigidly attached to the lower end of the drill mast 2 is.
  • the supply of the suspension takes place either over the middle Drill string 7 '' 'or over all three drill strings 7', 7 '', 7 '' '.
  • the suspension is in each case in the region of the tips 9 ', 9' ', 9' '' fed to the cuttings.
  • the outlet openings for the suspension is at the middle drill string 7 '' ' in its lower part. All outlets are against Blockage by cuttings are protected and located during drilling in a protected from cuttings area.
  • Fig. 3 is the staggered arrangement of the middle drill string 7 '' 'opposite the two outer drill strings 7 ', 7' 'shown in more detail.
  • All three drill strings 7 have an identically formed cutting device 9 at its bottom end and a to it subsequent conveyor coil 11 with about a pitch on. Due to the overlapping arrangement of Bohrradien is the middle drill string 7 '' 'by about one pitch of the conveyor coil 11 set back.
  • the middle drill string 7'''' Due to the overlapping arrangement of Bohrradien is the middle drill string 7 '' 'by about one pitch of the conveyor coil 11 set back.
  • the middle drill string 7'''' are at the two outer Drill strings 7 ', 7' 'each have a smaller diameter conveyor coil 18 '' arranged, which a collision-free rotary drive allow between the individual drill strings 7.
  • a rigid bar-shaped yoke 20 is provided.
  • This points for the three drill strings 7 each have a storage area 26, in which the drill strings 7 each rotatable and axially fixed are stored.
  • a sufficient space for the conveyor coil 11 '' 'according to the invention achieved in that in a middle Region of the yoke 20 an entanglement 22 is provided is.
  • the entanglement 22 consists of two angled webs, which the two outer bearing portions 26 with the middle Connect storage area 26.
  • the actual ones are Work areas of the drill string 7 below the Yokes 20, which form the so-called treatment area, at least approximately balanced.
  • the treatment area is decisive for the slicing and chopping of the soil as well for a first mixing of the crushed soil material with suspension.
  • the processing of the crushed soil in the treatment area on all three drill strings 7 largely uniform.
  • a uniform preparation is advantageous for producing a uniform, high-quality foundation pillar or foundation wall.
  • the invention will by the invention to a more uniform torque load All three drill strings and a uniform tool wear reached.
  • edges 24 are formed, which according to the Anwinkelung approximately in a 45 Angle to Bohrstrangachse run. This angled arrangement the edges 24 is for shearing remaining soil webs between the adjacent holes advantageous. The angling of the edges 24 facilitates shearing remaining floor bars and thus facilitates overall the lowering of the drilling device.
  • the only partially closed Mixed range which consists of an array of paddle-shaped Mixing elements on the drill strings 7 consists.
  • To the Compensation of the entanglement 22 on the yoke 20 are at the two outer drill strings 7 ', 7' 'still immediately after the yoke 20 each have an additional conveying spiral 19 ', 19' ' formed with about a pitch.
  • the lower part of the drilling device with the yoke 20 and the lower ends of each Drill string 7 can be formed as a separate part, which via a schematically illustrated shaft-hub connection 28 pushed axially on the drill string 7 and rotatably connected to these can.
  • a method for creating a secant bored pile wall for example from mortar columns.
  • a pre-mine ditch created.
  • a predetermined depth drilled out is approximately at the length of Conveying spiral 11 ', 11 ", 11' '' and the mixing elements 14th occupied part of the drill string 7 ', 7' ', 7' '' oriented. The Boring happens in such a way that no soil is mined becomes.
  • the Suspension is a water-binder mixture, which is self-curing. This process will be repeated several times repeatedly until the suspension liquefies the soil. there just as much suspension is added as in the pore volume of the soil can be absorbed. The mixing process will be like this long continued until suspension exits in the advance pit.
  • This procedure is used in the following depth ranges repeatedly until the desired final depth is reached. It This is a continuous drilling and mixing process.
  • pulling the drill string can be sand or another Material to be blown to a special strength to reach the foundation pillar.

Landscapes

  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Soil Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Agronomy & Crop Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Paleontology (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Earth Drilling (AREA)
  • Bulkheads Adapted To Foundation Construction (AREA)
  • Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
EP03009634A 2002-05-02 2003-04-29 Bohrvorrichtung und Verfahren zum Erstellen einer Bohrung im Boden Expired - Lifetime EP1359257B1 (de)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE10219742 2002-05-02
DE10219742 2002-05-02
DE10301072A DE10301072A1 (de) 2002-05-02 2003-01-14 Bohrvorrichtung und Verfahren zum Erstellen einer Bohrung im Boden
DE10301072 2003-01-14

Publications (2)

Publication Number Publication Date
EP1359257A1 EP1359257A1 (de) 2003-11-05
EP1359257B1 true EP1359257B1 (de) 2005-07-06

Family

ID=29216856

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03009634A Expired - Lifetime EP1359257B1 (de) 2002-05-02 2003-04-29 Bohrvorrichtung und Verfahren zum Erstellen einer Bohrung im Boden

Country Status (6)

Country Link
EP (1) EP1359257B1 (ja)
JP (1) JP3830460B2 (ja)
AT (1) ATE299205T1 (ja)
ES (1) ES2244857T3 (ja)
HK (1) HK1058954A1 (ja)
SG (1) SG102712A1 (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2681006C1 (ru) * 2016-11-18 2019-03-01 Китайский Университет Горного Дела И Технологии Автоматическая система управления врубовой машины и способ управления на основе машинного зрения и взаимодействия датчиков

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITTO20050447A1 (it) * 2005-06-28 2006-12-29 Soilmec Spa Attrezzatura e metodo di miscelazione in sito per la formazione di diaframmi.
CN105178297B (zh) * 2015-08-09 2016-11-30 重庆晨宇机床制造有限公司 八边形搅拌桩墙机的一种用法
KR101700848B1 (ko) * 2016-04-14 2017-02-01 조준열 오거 파일
CN106049475A (zh) * 2016-06-29 2016-10-26 滕彦斐 一种矩形钻机
CN106049474A (zh) * 2016-06-29 2016-10-26 滕彦斐 凹圆十字钻机
CN108894725B (zh) * 2018-08-07 2024-03-29 江西基业良工桩机制造有限公司 用于基坑连续咬合桩挡墙的钻孔机
CN111962609A (zh) * 2020-08-27 2020-11-20 王旭 一种基于生态恢复的移动式地下水填充设备

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55159017A (en) * 1979-05-25 1980-12-10 Kawasaki Heavy Ind Ltd Improving apparatus for soft ground at sea bed
JPS5850217A (ja) * 1981-09-22 1983-03-24 Asuku Kenkyusho:Kk 削孔混練機
US4909675A (en) 1988-08-24 1990-03-20 Osamu Taki In situ reinforced structural diaphragm walls and methods of manufacturing
DE4219150C1 (en) 1992-06-11 1993-09-23 Bauer Spezialtiefbau Gmbh, 86529 Schrobenhausen, De Underground mortar column prodn. - by drilling with auger through which hardenable suspension is fed
US5417522A (en) * 1993-09-23 1995-05-23 S. M. W. Seiko Soil fragmentation members and multiple lateral support structures for improved soil mixing and efficient boring for use on multi-shaft auger soil mixing apparatus
WO1995011349A1 (fr) 1993-10-22 1995-04-27 Chemical Grouting Company Ltd. Dispositif excavateur a arbres multiples
JPH0827772A (ja) * 1994-07-20 1996-01-30 Nippon Concrete Ind Co Ltd 地盤改良用混合攪拌装置
JP3156043B2 (ja) * 1997-04-11 2001-04-16 株式会社竹中土木 地盤改良用の３軸同期装置及びこれを利用した３軸混合処理機とケーシングパイプ式地盤改良装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2681006C1 (ru) * 2016-11-18 2019-03-01 Китайский Университет Горного Дела И Технологии Автоматическая система управления врубовой машины и способ управления на основе машинного зрения и взаимодействия датчиков

Also Published As

Publication number Publication date
JP2003328386A (ja) 2003-11-19
JP3830460B2 (ja) 2006-10-04
EP1359257A1 (de) 2003-11-05
ES2244857T3 (es) 2005-12-16
SG102712A1 (en) 2004-03-26
ATE299205T1 (de) 2005-07-15
HK1058954A1 (en) 2004-06-11

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