WO1980001087A1 - Foret - Google Patents

Foret Download PDF

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Publication number
WO1980001087A1
WO1980001087A1 PCT/JP1979/000292 JP7900292W WO8001087A1 WO 1980001087 A1 WO1980001087 A1 WO 1980001087A1 JP 7900292 W JP7900292 W JP 7900292W WO 8001087 A1 WO8001087 A1 WO 8001087A1
Authority
WO
WIPO (PCT)
Prior art keywords
drive
shaft
excavation
bearing
gear
Prior art date
Application number
PCT/JP1979/000292
Other languages
English (en)
Japanese (ja)
Inventor
M Fujiwara
M Miyaguchi
T Nakamura
M Ebine
H Wada
K Yamamoto
S Yamada
I Uchizaki
F Tanifuji
M Sato
A Suzuki
T Murai
Original Assignee
Takenaka Komuten Co
Sanwa Kizai Co Ltd
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 JP1978159443U external-priority patent/JPS5716907Y2/ja
Priority claimed from JP15944478U external-priority patent/JPS5576290U/ja
Priority claimed from JP15944278U external-priority patent/JPS5576238U/ja
Priority claimed from JP15944678U external-priority patent/JPS5576241U/ja
Priority claimed from JP15944578U external-priority patent/JPS5576240U/ja
Application filed by Takenaka Komuten Co, Sanwa Kizai Co Ltd filed Critical Takenaka Komuten Co
Priority to DE7979901540T priority Critical patent/DE2965956D1/de
Publication of WO1980001087A1 publication Critical patent/WO1980001087A1/fr

Links

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
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
    • E02D5/22—Piles
    • E02D5/34—Concrete or concrete-like piles cast in position ; Apparatus for making same
    • E02D5/36—Concrete or concrete-like piles cast in position ; Apparatus for making same making without use of mouldpipes or other moulds
    • 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
    • E21B7/00—Special methods or apparatus for drilling
    • E21B7/001—Drilling a non circular hole

Definitions

  • the present invention is an earth auger used to improve the ground and to create continuous walls such as water blocking walls and earth retaining walls in the ground, with excavation ports for compound textbooks, etc.
  • it relates to the drive unit for multiple excavation ports, the support device for the drive unit Q drive unit, the interval maintenance and steady rest device for the excavation rods, and the bearing device.
  • earth augers have been used as a means of creating continuous walls such as water blocking walls and earth retaining walls in the ground.
  • a construction method has been adopted in which a continuous wall is created by creating an underground pillar and bringing it close to each other.
  • WIP °- Multiple talented squirrels either of which are laid out in a fixed position at regular intervals or each have an independent drive unit, with a spacing between the squeeze axes. It has been proposed that the equipment be installed side by side in a variable manner, but in the former case, when it is necessary to change the outer diameter of the talented gas rig for convenience, for example, it was replaced with a smaller diameter one. In some cases, there is a gap between the gauges, which is why]? Drilling a row of pits creates a residue between the pits, which must be drilled after drilling. As a result, work efficiency will decrease. Even if you try to make a large diameter,
  • the support of the drive part of the conventional earth auger has a built-in motor, speed reducer, etc., and the bracket is integrally fixed to the back of the holder of the moving part by welding. , Multiple pairs of slide fittings are connected to this bracket, and these slide fittings are engaged with the guide pipe attached to the front of the relay.]? , It is mounted on the leader master so that it can be raised and lowered.
  • the slide metal fittings are fixed to the bracket welded to the back surface of the drive unit as described above.
  • the drive unit should be attached to the joint surface between the bracket and the slide metal fittings. It is conceivable that the spacing between the slide metal fittings may be widened by interposing a spacer. However, if the spacer becomes thicker, the bracket and the metal fittings may become unstable. ] ?, Since the excavation work is dangerous, it is mostly used in actual work; ⁇ cannot be used.
  • multiple drilling rods such as auger cleaners are installed side by side to drill a large number of vertical holes at once, and multiple columns used to create a continuous wall in the ground.
  • the upper end of each auger shaft is connected to the auger drive part, so the distance between the auger shafts is kept constant, but the lower part is not constrained to each other.
  • the spacing between the vertical holes to be drilled becomes uneven due to the fluctuation of the spacing, and the spacing between the moral pillars or the steel mortal pillars that are created varies, resulting in a continuous wall. It leads to unfavorable results.
  • the present invention has been made for the purpose of solving each of the above-mentioned problems, and is between the shafts of a plurality of excavation openings.
  • it is a device for keeping the distance between excavation mouths and holding the steady rest to prevent runout while keeping the excavation ⁇ -did interval constant by restraining between the excavation ⁇ -edges of multiple August cleaners, etc. ! ),
  • it is to provide a bearing device that prevents the intrusion of earth and sand into the fitting part between the above-mentioned spacing holding device and the excavation opening.
  • Fig. 1 shows an embodiment of the gauge according to the present invention / ⁇
  • Fig. 2 is an enlarged plan view of the drive unit
  • Fig. 4 is.
  • Fig. 5 is a front view with the main part of the drive unit as a cross section
  • Fig. 6 is a plan view showing an example of the output shaft fixing means
  • Fig. 7 is an enlarged cross-sectional view of the same part
  • Figures ( ⁇ ) and ( ⁇ ) are explanatory views showing the adjustment state of the inter-axis distance of the output shaft
  • Fig. 9 (A) is an enlarged plan view of the support device of the drive unit
  • Fig. 9 (B)' is the same front.
  • FIG. 1 '0 A is a plan view showing other examples
  • Fig. 10 (B) is the same front view
  • Fig. 11 and Fig. 12 are enlarged views showing other examples.
  • Top view Fig. 13 is an enlarged front view showing an example of an excavation ⁇ -id interval stabilizer
  • Fig. 14 (A) is a cross-sectional view of A — line A of Fig. 13, and Fig. 14 (Fig. 14).
  • ⁇ Is a cross-sectional view showing the state in which the interval of the excavation rod can be changed in Fig. 13;
  • Fig. 15 is a plan view of the anti-vibration device.
  • Fig. 16 is the same front view and
  • Fig. 17 is a guide.
  • Holder mounting phase diagram Fig. 18 is a cross-sectional view of Fig. 17 B — B,
  • Fig. 19 is an implementation of a bearing device in an excavation rod spacing stabilizer.
  • Semi-new view showing an example. Is. Best mode for carrying out the invention
  • the earth sword 1 is a guide part 3, 3 (guide section consisting of pipes provided in the vertical direction on the front of the lid mass 2). Guided by a switch (hereinafter referred to as a guide pipe), which is not shown in the drive unit 4! ) It is hung up and down freely via a mouthpiece 5, and is used as an excavation rod for multiple drilling rods (4 in the example) in this drive mounting 4. -6, 6, et al.', 6'are attached in Europe.
  • a guide pipe guide pipe
  • the drive unit 4 is from the moving part 4a and the holder 4] ?, and the internal structure of the driving part 4 is a pair of two left and right as shown in Fig. 3 to Fig. 5. August Cleaner 6, 6 and 6', 6'each with one motor 7, 7', and this motor 7, 7']? Two on each side Each talented gas clear 6, 6 and 6', 6'are alternately driven to the right and left.
  • the drive shaft 9 is connected to the output shaft 8 of the motor 7, and the drive shaft 9 is connected to the drive shaft 9 in the figure.
  • the gas clear drive system 1 1 is installed at appropriate intervals up and down! ), The 2nd Augmentary Motion System 1 1 is rotatable with respect to the above drive shaft 9.
  • the first August clear drive system 10 is a drive gear 1 2 fixed on the drive shaft 9, an idle gear 1 3 fitted to the drive gear 1 2, and this idle. It has an output gear 1 4 fitted to the gear 1 3, and each of these gears 1 2, 1 3, 1 4 is pivotally supported in the gear box 1 5, and the output gear 1 4 is the output shaft 1 6 It is fixed to.
  • the second August clear drive system 1 1 has a drive gear 1 7 fixed to the drive shaft 9 and an output gear 1 8 fitted to the drive gear 1 7, and these gears 1 7 , 1 8 are bearing in the gear box 1 9, and the output gear 1 8 is fixed to the output shaft 20.
  • the output shafts 1 6, 20 penetrate the elongated holes 2 2, 2 3 drilled in the bottom 2 1 of the drive unit 40, and the output shafts 1 6, 20 are fixed to the bottom 2 1 at the desired positions.
  • the fixing means 2 4 is provided, and the lower ends of the output shafts 1 6 and 20 are connected to the upper ends of the oil cleaners 6 and 6, and the couplings 2 5 and 2 are free to connect. E that has 6
  • the above fixing means 2 4 shows an enlarged cross section in Fig. 7 (
  • a substrate 2 9 having a claw 2 8 that engages with a step 2 7 formed at the bottom of the gear case 1 5, -3— ⁇ - (shown for convenience only on one side) is provided and fixed.
  • gear 1 5 is output.
  • the gear ⁇ 1 9 rotates around the motor shaft, and the axis of the output shaft is displaced.
  • the holes 3 1, 3 1... that pass through the board 2 9 of the fixed hand 2 4 are connected to the bottom 2 1 of the drive unit 4. Insert through the bolt holes 30, 30... and tighten, socks
  • the drive shaft 9 is rotated through the output shaft 8, and the drive gear 1 2 and the idle gear 1 3 and the output gear 1 4 are passed through the output shaft 1 6 and the drive gear 1 7 and
  • the output shafts 20 are rotationally driven in opposite directions through the output cables 1 8 to rotate the August Cleaners 6 and 6.
  • the other side of the August reviews 6'and 6' also rotate in the same way. Since the structure on the other side is the same, a hash is added to the code of the corresponding part.
  • the movement of the output shafts 1 6, 1 6', 20 ⁇ ,. 20' is a fluid cylinder or lateral feed! ) It can also be done by using the sliding mechanism, etc. In this case, replace it with the mouth of the cylinder or the fixed mechanism that holds the mouth of the sliding mechanism. do it.
  • a drive device for a 4-unit auger in which two sets of drive units of the above configuration are installed side by side in a holder has been described, but in the case of a 2-unit auger, one set is sufficient, and 6 stations are also used. In the case of an auger, three sets of drive units should be incorporated into the holder.
  • the back surface 40 of the holder 4 b of the drive device 4 is provided with a recess 4 1 that constitutes a guide in the direction of: and the center of the holder 4 b.
  • Bracket 4 3 with a convex part 4 2 that fits into the concave groove 4 1 of the bolt 4 4..., nut 4 4'
  • the bracket 4 3 has two side plates 4 6, 4 6 fixed at right angles to the board 4 5, so the slide metal fittings 4.7 are attached to these side plates 4 6, 4 6. ,. 4 7 pointing inward, bolt 4 8..., nut 4 8' ⁇
  • Slide brackets-4 7, 4 7 engage the guide pipes 3 and 3 mounted on the leader 2 with an appropriate interval L to attach the drive device ⁇ to the leader 2 3 ⁇ 4. Therefore, it is self-sustaining.
  • the leader has a guide pipe 3'and 3'with a wider mounting interval than the one shown in Fig. 9 (A). If the drive unit ⁇ "is set to 2', the result is shown in Fig. 9 (B).
  • a concave'lead 4 is provided and a convex portion 4 2'is provided on the back surface of the holder 4 0, and as shown in Fig. 1 and 2, the back surface of the holder 4 0 and the front surface of the bracket 4 3 are both concave.
  • 4 1 "and 4 1" are provided, and a key 4 9 is inserted into the square hole created by this recess.
  • Or support apparatus of the present invention is, kill de Lock Puha comma, di Ichize Le Ha down Ma, soil improvement machine, or the like, Li Dama be sampled to f H, in applied to all of the go-between up and down is allowed to work equipment ..
  • Fig. 1 3 and Fig. 14 Between the shafts of excavation ⁇ rods 6 and 6 when each excavation rods 6 and 6... are held by the excavation ⁇ rod interval stabilizer in the state shown in the figure. When it becomes necessary to change the distance, loosen the bolt 6 1, 6 1... and lift the fitting 5 9 ... After changing the distance between the axes of 6..., as shown in Fig. 14 (B), the protrusion 5 7... is used for the hole hole 6 0... of the connector 5 9.... Select the route hole 5 8... as appropriate, insert the bolt 6 1... into both bolt holes and tighten, and fix the inter-axis distance between each drilling rods 6, 6....
  • hole holes 5 8 of the protrusions 5 7 may be drilled in rows with the expected interaxial change and ⁇ .
  • the protrusion 5 7 and the connector 5 9 are tightened by a bolt, which is indicated by using a pin or the like. You can do it.
  • CMPI One CMPI A large number of 7 1... are drilled in this bolt hole 7 1..., and a pair of mouth guide holders 7 2 ⁇ “according to the Kamibolt 7 3]? . 7 4 is the above guide holder 7 2'internal interior color] ?, and 7 5 is the above front frame 6 8
  • 6 8 is a reporter used to connect', 7 6 is a working combination.
  • the position of the holder 7 2... in the rod plan should be changed. It is more efficient to use the worktables 7 6 and 7 6 for the above work.
  • the anti-vibration device may be hung on the drive unit with a wire in the autumn state when it is attached to the guide pipe of the reader. 'Next, the shaft-bearing device suitable for the interval stabilizer shown in Figures 13 to 14 (A) and ( ⁇ ) will be explained.
  • Fig. 19 is a semi-cross-sectional view showing an example of this bearing device, which is 80 OV1PI WIPO. Indicates the male side shaft of the joint of excavation opening 6.
  • a notch step is provided on the outer periphery of the end of the male side shaft 80 of the joint part of the excavation port 6, and the male side pipe shaft 8 1 of the bearing part of the excavation rod 6 is provided in a part of this step.
  • An annular recess 8 2 was formed between the pipe shaft 8 1 and the end face, and a concave seal groove 8 3 was formed in the upper and lower ends of the recess 8 2 in the direction of the inner axis.
  • the bearing member ⁇ 85 such as the oilless stainless steel is fitted between the seal receiving members, and the upper and lower ends are concave in the axial direction.
  • the fixed bearings 8 7 forming the ru- ⁇ 8 6 are freely assembled together.
  • the inner wall surface of the bearing chambers 8 8 and 8 9 facing the axis is formed on the taper surface 90 which is inclined in the direction of decreasing the radius from the center toward the D measuring part.
  • the moving parts 9 5 and 9 6 are in sliding contact with each other.
  • the outer peripheral end facing surface of the receiving part 8.7 is outward.
  • the inclined surface in the expanding direction 1 0 2, 1 0 2, 1 0 3, Formed at 1 0 3] ?, by both inclined surfaces 1 0 2, 103]? 0 rings 1 0 4, 1 0 4 are press-fitted into the V-shaped groove formed. ..
  • the fixed bearing portion 8 7 is provided with grease injection holes 1 0 5 and 105 in the radial direction, and the through holes 1 0 6 and 1 are formed in the bearing member 85. It communicates with 0 6, and the sliding surface between the bearing member 8 5 and the recess 8.2. And the grease can be injected into the seal chambers 8 8 and 8 9 above. ..
  • discharge ports 1 0 7, 10 7 for discharging the injected grease are bored] ?, These are blind plugs. Niyo! ?? It is sealed.
  • 1 0 9 is a connecting member fixed to the outer surface of the fixed bearing 8 7] ?, and this connecting material 1 0 9 connects to the adjacent fixed bearing, and the bearing is constant. It is held at intervals.
  • the inclined surfaces of the seal receiving members 8 and 4 and the fixed bearing 8 7 are formed according to the inclined surfaces 1 0 2, 1 0 2 and 100 3, 103]).
  • the two gear systems are mounted in the gear box by combining the ⁇ force gears that are iH 3 ⁇ 4, and the upper stage (motor side) gearbo.
  • the drive motor is installed in the axle, and the lower gearbox is rotatably supported with respect to the drive shaft so that the distance between the two K force shafts can be changed.
  • each gearbox is fixed by rotational displacement]?, At any interval between each output shaft. This allows you to adjust the displacements connected to these output shafts to any interval.
  • a single motor is used.] ⁇ Two talented gas cleaners are driven to rotate. It is possible to rotate the drive in a circular motion without causing any trouble.
  • Sa-ra Multi-talented —
  • the space-stabilizing sword that can be used for ga is a rotatably outer cylinder that allows each cylinder to rotate in the middle of multiple excavations.
  • a protrusion is provided on the outer periphery of each cylinder toward the adjacent cylinder, and a plurality of through holes are made in this protrusion in the parallel direction of the excavation opening, and they face each other. Since the gap between the excavation openings is kept constant by attaching a fitting to the through holes of the two protrusions with a bolt, etc., even if the interval between the excavation openings is changed. It is sufficient to select the through hole of the protrusion as appropriate for the through hole of the connector and tighten it with a bolt, etc., and every time the excavation opening interval is changed in the conventional interval setting device. It is extremely effective compared to having to prepare a different one each time! ), Its practicality is great.
  • the anti-vibration device for multiple augers is equipped with a ⁇ -rod guide frame on the front of the lower part of the leader, and this mouth guide — excavates multiple mouth guide holders in the frame. Since the mouthpieces are installed so that they can be moved in the parallel direction, the distance between the excavation degrees is changed.
  • the rod guide holder can be moved and fixed accordingly, and unlike the conventional anti-vibration device, the cutting rod interval is changed each time. It is extremely effective compared to having to prepare a device, so its practicality is great.
  • the bearing device there is an excellent effect that sand does not infiltrate into the rotating part in the soil and the smooth rotation of the rotating part can be maintained.

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

Abstract

Un appareil d'entrainement d'un foret du type qui simultanement creuse une pluralite de trous verticaux via une pluralite de tiges d'excavation telles que des tarieres a vis pour former une paroi continue sous le niveau du sol en chargeant du mortier dans les trous verticaux, l'appareil permettant la transmission d'une force d'entrainement aux tiges d'excavation respectives a partir d'une source motrice unique en rendant variable la distance entre les axes des tiges d'excavation alignees en parallele. Ce dispositif comprend deux engrenages de transmission montes sur un arbre moteur de transmission, deux trains d'engrenage formes par engrenement de l'engrenage monte sur un arbre de sortie avec les deux engrenages de transmission, l'arbre de sortie etant relie aux deux engrenages de transmission, les deux trains d'engrenage etant supportes respectivement dans des boites d'engrenage pour porter le moteur d'entrainement sur la boite d'engrenage de l'etage superieur (cote moteur) et pour supporter de maniere rotative la boite d'engrenage de l'etage inferieur sur l'arbre d'entrainement de maniere a pouvoir faire varier la distance entre les arbres de sorties. Ainsi, meme si les tarieres a vis de diametres exterieurs differents sont reliees les unes aux autres, un espacement excessif ne se forme jamais entre celles-ci et les vis ne se genent jamais entre elles.
PCT/JP1979/000292 1978-11-21 1979-11-14 Foret WO1980001087A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE7979901540T DE2965956D1 (en) 1978-11-21 1979-11-14 Earth auger

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
JP1978159443U JPS5716907Y2 (fr) 1978-11-21 1978-11-21
JP15944478U JPS5576290U (fr) 1978-11-21 1978-11-21
JP78/159442 1978-11-21
JP15944278U JPS5576238U (fr) 1978-11-21 1978-11-21
JP15944678U JPS5576241U (fr) 1978-11-21 1978-11-21
JP15944578U JPS5576240U (fr) 1978-11-21 1978-11-21

Publications (1)

Publication Number Publication Date
WO1980001087A1 true WO1980001087A1 (fr) 1980-05-29

Family

ID=27528199

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP1979/000292 WO1980001087A1 (fr) 1978-11-21 1979-11-14 Foret

Country Status (3)

Country Link
EP (1) EP0020779B1 (fr)
DE (1) DE2965956D1 (fr)
WO (1) WO1980001087A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2430402A1 (es) * 2012-05-15 2013-11-20 Fº JAVIER PORRAS VILA Removedora de tierra
CN107893627A (zh) * 2017-12-12 2018-04-10 国网山东省电力公司龙口市供电公司 一种杆坑钻挖装置
CN116988764A (zh) * 2023-08-07 2023-11-03 河南锦源建设有限公司 一种矿山开采用钻孔注浆设备
CN117166912A (zh) * 2023-11-03 2023-12-05 合肥工大共达工程检测试验有限公司 一种桥梁桩基钻孔装置

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0685603B1 (fr) * 1993-12-10 2002-05-02 Chemical Grouting Company Ltd. Dispositif d'excavation a arbres multiples
ITTO20040458A1 (it) * 2004-07-06 2004-10-06 Soilmec Spa Attrezzatura ad eliche per lo scavo di diaframmi
JP6261066B2 (ja) * 2013-08-02 2018-01-17 成幸利根株式会社 多軸掘削機
CN106065764B (zh) * 2016-07-26 2019-03-22 昆明良工桩机制造有限公司 长螺旋多孔连通式钻机、及制作的多孔连通式混凝土灌注桩和灌注桩的施工方法
JP7309665B2 (ja) * 2020-07-02 2023-07-18 大成建設株式会社 拡翼掘削機と壁杭の施工方法

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51102310A (ja) * 1975-03-07 1976-09-09 Onoda Cement Co Ltd Fukusunochukukanodojinichichunisonyushi doshitsuanteizaichuozoseisurusochi
JPS53111602A (en) * 1977-03-10 1978-09-29 Takenaka Komuten Co Hydraulic multiple spindle earth auger
JPS54112509A (en) * 1978-02-21 1979-09-03 Takenaka Komuten Co Variable pitch multispindle injection ground improving machine

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1535255A (fr) * 1967-08-29 1968-08-02 Tone Boring Co Excavation de tranchées permettant l'érection de murs enterrés

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51102310A (ja) * 1975-03-07 1976-09-09 Onoda Cement Co Ltd Fukusunochukukanodojinichichunisonyushi doshitsuanteizaichuozoseisurusochi
JPS53111602A (en) * 1977-03-10 1978-09-29 Takenaka Komuten Co Hydraulic multiple spindle earth auger
JPS54112509A (en) * 1978-02-21 1979-09-03 Takenaka Komuten Co Variable pitch multispindle injection ground improving machine

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP0020779A4 *

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2430402A1 (es) * 2012-05-15 2013-11-20 Fº JAVIER PORRAS VILA Removedora de tierra
CN107893627A (zh) * 2017-12-12 2018-04-10 国网山东省电力公司龙口市供电公司 一种杆坑钻挖装置
CN107893627B (zh) * 2017-12-12 2024-01-12 国网山东省电力公司龙口市供电公司 一种杆坑钻挖装置
CN116988764A (zh) * 2023-08-07 2023-11-03 河南锦源建设有限公司 一种矿山开采用钻孔注浆设备
CN116988764B (zh) * 2023-08-07 2024-05-14 河南锦源建设有限公司 一种矿山开采用钻孔注浆设备
CN117166912A (zh) * 2023-11-03 2023-12-05 合肥工大共达工程检测试验有限公司 一种桥梁桩基钻孔装置
CN117166912B (zh) * 2023-11-03 2024-02-13 合肥工大共达工程检测试验有限公司 一种桥梁桩基钻孔装置

Also Published As

Publication number Publication date
EP0020779B1 (fr) 1983-07-20
EP0020779A4 (fr) 1981-03-24
DE2965956D1 (en) 1983-08-25
EP0020779A1 (fr) 1981-01-07

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