WO1995022677A1 - Equipement de percement de tunnel et procede de percement - Google Patents

Equipement de percement de tunnel et procede de percement Download PDF

Info

Publication number
WO1995022677A1
WO1995022677A1 PCT/FI1995/000086 FI9500086W WO9522677A1 WO 1995022677 A1 WO1995022677 A1 WO 1995022677A1 FI 9500086 W FI9500086 W FI 9500086W WO 9522677 A1 WO9522677 A1 WO 9522677A1
Authority
WO
WIPO (PCT)
Prior art keywords
bit
drilling
drilling apparatus
pipeline
pipe
Prior art date
Application number
PCT/FI1995/000086
Other languages
English (en)
Inventor
Valto ILOMÄKI
Original Assignee
Ilomaeki Valto
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 FI940796A external-priority patent/FI940796A0/fi
Application filed by Ilomaeki Valto filed Critical Ilomaeki Valto
Priority to CZ962478A priority Critical patent/CZ247896A3/cs
Priority to AU17097/95A priority patent/AU1709795A/en
Priority to EP95908970A priority patent/EP0746665A1/fr
Priority to KR1019960704567A priority patent/KR970701299A/ko
Priority to PL95315944A priority patent/PL177283B1/pl
Priority to JP7521622A priority patent/JPH10500753A/ja
Publication of WO1995022677A1 publication Critical patent/WO1995022677A1/fr
Priority to FI964152A priority patent/FI964152A0/fi

Links

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
    • E21B7/00—Special methods or apparatus for drilling
    • E21B7/28—Enlarging drilled holes, e.g. by counterboring
    • 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
    • E21B10/00—Drill bits
    • E21B10/26—Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers
    • 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
    • E21B7/20—Driving or forcing casings or pipes into boreholes, e.g. sinking; Simultaneously drilling and casing boreholes
    • E21B7/208—Driving or forcing casings or pipes into boreholes, e.g. sinking; Simultaneously drilling and casing boreholes using down-hole drives
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
    • F16L55/16—Devices for covering leaks in pipes or hoses, e.g. hose-menders
    • F16L55/162—Devices for covering leaks in pipes or hoses, e.g. hose-menders from inside the pipe
    • F16L55/165—Devices for covering leaks in pipes or hoses, e.g. hose-menders from inside the pipe a pipe or flexible liner being inserted in the damaged section
    • F16L55/1658—Devices for covering leaks in pipes or hoses, e.g. hose-menders from inside the pipe a pipe or flexible liner being inserted in the damaged section the old pipe being ruptured prior to insertion of a new pipe

Definitions

  • the invention relates to a method according to patent claim 1 and a drilling apparatus according to patent claim 6 to re- drill an existing tunnel or hole.
  • Previously known is as a replacement method of old sewer sys ⁇ tems by means of which a new pipeline is pulled into the old one. Also known is a drilling apparatus by means of which the old pipe is crushed and the waste forced to the surroundings in accordance with EP-publication 0 455 949, while pulling in a new pipe into the hole.
  • a disadvantage on pulling in a new pipe is a substantial fall in the pipe diameter size and the fact that it is impossible to pull in a new pipe into a pipeline already collapsed.
  • the disadvantage in crushing old pipelines and forcing produced waste to the tunnel walls is damage on the neighbor pipelines by sharp chips which can, due to tensions, fall back into the hole and even smoother running soil can cause friction which prevents the pulling-in of a new pipe into the hole.
  • the advantage of this invention is that the pipeline can be either collapsed or not and replaced by a new pipeline with the same or a greater outer diameter.
  • the old pipeline and possible soil are removed from the hole and so they do not have any impacts on the surroundings.
  • the drilling apparatus moves forward following the old pipeline and can curve, upon need.
  • Fig. 1 is a side section of the drilling apparatus.
  • Fig. 2 is the steering pilot unit.
  • Fig. 3 is the packing of the pilot unit
  • Fig. 4 is the cross-section of an optional drilling apparatus.
  • Fig. 5a is the cross-section of portion A-A.
  • Fig. 6a is the cross-section of portion B-B.
  • Figure 1 shows a drilling apparatus furnished with a penumatic percussion hammer. Compressed air flows along pipe 2 transmit ⁇ ting also rotational motion to the drilling apparatus. In the front end of the pilot unit there is a percussion bit holder 8 producing both hammering and also rotational motions. To break down the pipeline 3, a ring bit 6 with crushing bits 5 is fix ⁇ ed by a thread to the rear end of the percussion bit holder. Compressed air, operating the percussion hammer 1, is already by now under much lower pressure and running along channel 9 to the front side of the ring bit 6, from where it conveyes the crushed waste from pipe 3 to the back over pipe 7. If pipe 3 is blocked, compressed air does not escape forward.
  • a pilot unit 4 fixed with a thread to pit holder 8 to steer, upon need, the forward travel of the drilling apparatus.
  • a diameter size is chosen that it will fit into pipeline 3 with sufficient clearance. If the drilling appar ⁇ atus tends to drift 3 towards a wall inside pipeline 3, the pilot unit 4 grasps the pipeline wall and the force, energated thereby, starts to affect the whole drilling apparatus turnig it little by little closer to the center inside the pipeline.
  • the pilot unit can be freely spinning in the bit holder 8 top end and its fixation to the bit holder can allow also a slight swinging in relation to the bit holder centre line.
  • Figure 2 shows a pilot unit 11 with crushing bit 5. Scavenging air or water shall, at least in this case, also be conveyed to the front side of this blade during crushing. For this purpose a hole has been made in the component 12. A special valve must be fitted in bit holder 8, by means of which the travel of scavenging air or water can be steered either to ring bit 6 or also to the bit in the pilot unit which is also used for crushing. Then the valve is controlled either by means of the pressure line or the electric line from the mouth of hole or there is in bit holder 8 or in component 11 a sensor detecting whether component 11 is in crushing state or not.
  • Figure 3 shows a pilot unit most advantageously fitted with a packing part 13 made of rubber taking support from the re ⁇ placeable pipe or a corresponding wall in the former tunnel, and thereby preventing compressed air or water, conveyed to ring bit 6, from escaping forward past the pilot unit.
  • packing 13 is needed when the pilot unit 11 is not crushing, i.e. the old pipeline has not collapsed and is free from blockages.
  • the steering pilot unit 4 can also be a bushing, whereby the bit holder is the foremost part to enter out off it and, in addition, there is a thread in the top of the bit holder for applying a separate tip bit. Most advantageously, the diameter of the tip bit is thereby very close to the outer diameter of the bushing.
  • the ring bit 6 can be replaced by a bit holder ex ⁇ tension of corresponding size, whereby they both are made of the same billet and the bit holder can be used to drill an one-size hole only.
  • the new pipe is pulled into the hole and the joint between ring bit 6 and the new pipe 10 is a lap joint 39 with collar, whereby the pipe is secured axially by the ring in pipe 10 end to the ring bit 6.
  • the pipe is not rotating though the ring bit is spinning.
  • the bits can also be chisel bits. Anyhow, the bit and the bit holder as well as the pilot unit can be joined together by means of different com ⁇ binations in order to enable great convertability and a great number of diameters, to facilitate manufacturing and decrease the mass of waste being produced.
  • Figure 4 shows an example of how pressure medium is conveyed to the pilot unit, the outer shell 29 of which is a cylinder, in the front end of which there are crushing buttons 5 and how it is also possible to convey medium to the buttons 5.
  • the bit holder 14 has a center hole 15 for transmission of medium to a valve assembly formed in the pilot unit.
  • the ring bit is supported by protecting pipe 16 and can move slightly lengthwise and spin in the supportive protecting pipe 16.
  • Between pilot blade 17 and the ring bit there is a push-pull joint allowing removal of bit holder 14, pilot blade 17 and the whole pilot unit from the drilling top end by pulling the bit holder while the protecting pipe 16 and the ring bit remain in place.
  • the pilot unit In a state according to the figure the pilot unit is not crushing. Access of compressed air to hole 15 and to the front end of the pilot unit over channel 34 is blocked. Instead, air has access over channel 24 to the packing 22 bending it to become packed against the pipe which is being crushed. Like ⁇ wise, air has access over channel 20 to the front side of the pilot bit and the ring bit that are crushing the pipe, whereat drill waste is conveyed by the air backward over channel 19.
  • the outer shell of the pilot unit can swing slightly on a supporting ring 23, which in its turn is fixed to a cylindrical part 38 that has two channels 25 and 24 and can gliding on bit holder 14.
  • the outer shell 29 is forced forward by spring 27 arranged between flanges 32 and 26.
  • Flange 26 is connected by a bolt to the tip of bit holder 14.
  • a thick rubber ring 21 functions as axially elastic means.
  • the outer shell 29 steers the travel of the drilling apparatus in the pipeline which is being chrushed and is able to yield a little and turn the drilling apparatus slowly step by step in the pipeline direction.
  • the pilot unit does not, however, hammer hardly at all, because the shell 29 of the pilot unit can move back against spring 27 as much as the length of a stroke and even more. So the pilot unit does not tend to break the pipeline which is being crush ⁇ ed and drill itself through it in a low-gradient pipeline curve, for instance.
  • the pilot unit shiftes over to drilling when the front buttons 5 hit an obstacle.
  • the outer shell with parts 32 and 35 fixed on it moves back and keeps also pushing backward the two- channel 24, 25 part 38 and rubber ring 21 till bushing 36 in ⁇ side spring 27 strikes against flange 26.
  • the stroke of bit holder 14 starts to get transmitted also to buttons 5 and the outer shell 29 starts to work, too.
  • compressed air is also directed over the centre hole 15 of bit holder 14 to channel 25 and through the same over holes 28 of the outer shell 20 to crushing buttons 5.
  • Drill waste can be conveyed from the shell outside by compressed air to channel 19 or in ⁇ side shell 29 over valves 31 and the holes in flange 32 to channel 37, to which a hole opens from between flange 26 and part 38. Due to clearance, channel 24 is not fully closed, neather is channel 20. Accordingly, packing 22 can function upon need. In that case the drill waste is conveyed completely through the inside of shell 29 to channel 19.
  • FIG. 5a shows how the spinning motion of bit holder 14 is transmitted from flange 26, fixed to the front of the bit holder, to put also the outer shell 29 into spinning motion.
  • flange 35 which has three wide grooves, in which flange 26 the buttons can glide lengthwise while transmitting spinn ⁇ ing motion.
  • Figure 5b shows how bit holder 14 and pilot blade 17 can be pulled out while ring bit 18 stays in place.
  • pilot bit there are big grooves in three directions, whereat the bit can be pulled out even though previous known turning cylinders, which steer the drill bit, would have been placed, similarly, in three peripheral positions in the protection pipe 16, when the grooves are fitted at the cylinders.
  • the drilling apparatus By means of the drilling apparatus it is also possible to pull into the formed tunnel a new pipeline fixed to the the ring bit while pushing it from the tunnel mouth. It is also possib ⁇ le to assemble a new pipeline only by pushing it from the tun ⁇ nel mouth with a power unit, if it is unsuitable for pulling.
  • a renewable able pipe can be replaced even by a plastic pipe, because the surface of the new hole remains smooth and does not have any sharp edges to damage the plastic surface.
  • Steering can be taken from the replaceable pipe in utilizing, for instance, rolls fixed to the pilot unit and travelling along the inner surface of the replaceable pipe.
  • Teh drilled waste can be removed by means of a scaveng ⁇ er, a screw conveyor or by pumping either in the drilling direction or backward.
  • Possible damage of the surface of the replacement pipe can be avoided using a separate pipeline, which can be placed in the hole and inside of which the drill waste moves. By means of this pipeline drill waste can also be conveyed forward.

Landscapes

  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Earth Drilling (AREA)
  • Excavating Of Shafts Or Tunnels (AREA)

Abstract

Un équipement de forage, et plus particulièrement un équipement de reforage de forage existant comporte, dans la tête de forage, une unité cylindrique (4) constituant l'élément d'attaque de progression. Cette unité cylindrique (4) est d'un diamètre substantiellement inférieur à celui du forage ou du tunnel à réaliser après reforage, et ses dimensions s'adaptent à l'intérieur du forage ou du pipeline (3). Ladite unité cylindrique (4) fait progresser l'ensemble de l'appareil de forage en appliquant les forces de progression contre les parois du forage original (3).
PCT/FI1995/000086 1994-02-21 1995-02-21 Equipement de percement de tunnel et procede de percement WO1995022677A1 (fr)

Priority Applications (7)

Application Number Priority Date Filing Date Title
CZ962478A CZ247896A3 (en) 1994-02-21 1995-02-21 Tunnel drilling process and apparatus for making the same
AU17097/95A AU1709795A (en) 1994-02-21 1995-02-21 An apparatus for drilling open a tunnel and drilling method
EP95908970A EP0746665A1 (fr) 1994-02-21 1995-02-21 Equipement de percement de tunnel et procede de percement
KR1019960704567A KR970701299A (ko) 1994-02-21 1995-02-21 파이프 라인을 교체하는 드릴링 방법 및 드릴링 장치(an apparatus for drilling open a tunnel and drilling method)
PL95315944A PL177283B1 (pl) 1994-02-21 1995-02-21 Sposób i urządzenie do wymiany przewodów podziemnych, zwłaszcza kanalizacyjnych przewodów rurowych
JP7521622A JPH10500753A (ja) 1994-02-21 1995-02-21 トンネルをボーリングする装置及びボーリング方法
FI964152A FI964152A0 (fi) 1994-02-21 1996-10-16 Foerfarande och anordning foer uppborrning av en tunnel

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
FI940796 1994-02-21
FI940796A FI940796A0 (fi) 1994-02-21 1994-02-21 Anordning foer uppborrning av tunnel
FI941154 1994-03-11
FI941154A FI941154A0 (fi) 1994-02-21 1994-03-11 Anordning foer uppborrning av en tunnel

Publications (1)

Publication Number Publication Date
WO1995022677A1 true WO1995022677A1 (fr) 1995-08-24

Family

ID=26159682

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/FI1995/000086 WO1995022677A1 (fr) 1994-02-21 1995-02-21 Equipement de percement de tunnel et procede de percement

Country Status (10)

Country Link
EP (1) EP0746665A1 (fr)
JP (1) JPH10500753A (fr)
KR (1) KR970701299A (fr)
CN (1) CN1144549A (fr)
AU (1) AU1709795A (fr)
CA (1) CA2183870A1 (fr)
CZ (1) CZ247896A3 (fr)
FI (1) FI941154A0 (fr)
PL (1) PL177283B1 (fr)
WO (1) WO1995022677A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0763648A1 (fr) 1995-09-14 1997-03-19 Rd Trenchless Ltd Oy Dispositif et procédé de forage
US6039505A (en) * 1993-07-27 2000-03-21 Tenbusch, Ii; Albert A. Technique for administering a lubricant in an underground pipe replacement system
US7673706B2 (en) 2006-03-30 2010-03-09 Sandvik Intellectual Property Ab Down-the-hole hammer with pilot and method of enlarging a hole
DE102010004672A1 (de) * 2009-09-22 2011-03-24 Max Streicher Gmbh & Co. Kg Aa Sanierungsvorrichtung und -verfahren
WO2013017560A3 (fr) * 2011-08-02 2013-11-14 Plumettaz Holding Sa Outil de forage permettant de disposer un tuyau dans le sol

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113464769B (zh) * 2021-07-06 2023-04-21 仙桃绿色东方环保发电有限公司 一种用于废气排放管道的模块化的清理修复机

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1393107A (fr) * 1964-05-13 1965-03-19 Sandvikens Jernverks Ab Fleuret de forage
GB2123111A (en) * 1982-06-21 1984-01-25 British Gas Corp Repairing mains
DE3533995A1 (de) * 1985-09-24 1987-04-16 Tracto Technik Rammbohrgeraet mit schlagmesserkolben
EP0389885A1 (fr) * 1989-03-30 1990-10-03 diga - die gasheizung GmbH Appareil pour briser et presser des tuyaux anciens dans la terre environnante
NO170101B (no) * 1990-06-07 1992-06-01 Aker Entreprenoer As Anordning og fremgangsmaate til bruk ved tunnelboring.

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1393107A (fr) * 1964-05-13 1965-03-19 Sandvikens Jernverks Ab Fleuret de forage
GB2123111A (en) * 1982-06-21 1984-01-25 British Gas Corp Repairing mains
DE3533995A1 (de) * 1985-09-24 1987-04-16 Tracto Technik Rammbohrgeraet mit schlagmesserkolben
EP0389885A1 (fr) * 1989-03-30 1990-10-03 diga - die gasheizung GmbH Appareil pour briser et presser des tuyaux anciens dans la terre environnante
NO170101B (no) * 1990-06-07 1992-06-01 Aker Entreprenoer As Anordning og fremgangsmaate til bruk ved tunnelboring.

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6039505A (en) * 1993-07-27 2000-03-21 Tenbusch, Ii; Albert A. Technique for administering a lubricant in an underground pipe replacement system
US6588983B1 (en) 1993-07-27 2003-07-08 Tenbusch, Ii Albert A. Trenchless pipe replacement apparatus and technique
EP0763648A1 (fr) 1995-09-14 1997-03-19 Rd Trenchless Ltd Oy Dispositif et procédé de forage
US5791419A (en) * 1995-09-14 1998-08-11 Rd Trenchless Ltd. Oy Drilling apparatus for replacing underground pipes
US7673706B2 (en) 2006-03-30 2010-03-09 Sandvik Intellectual Property Ab Down-the-hole hammer with pilot and method of enlarging a hole
DE102010004672A1 (de) * 2009-09-22 2011-03-24 Max Streicher Gmbh & Co. Kg Aa Sanierungsvorrichtung und -verfahren
WO2013017560A3 (fr) * 2011-08-02 2013-11-14 Plumettaz Holding Sa Outil de forage permettant de disposer un tuyau dans le sol

Also Published As

Publication number Publication date
PL315944A1 (en) 1996-12-09
FI941154A0 (fi) 1994-03-11
CN1144549A (zh) 1997-03-05
JPH10500753A (ja) 1998-01-20
KR970701299A (ko) 1997-03-17
CZ247896A3 (en) 1997-07-16
PL177283B1 (pl) 1999-10-29
EP0746665A1 (fr) 1996-12-11
CA2183870A1 (fr) 1995-08-24
AU1709795A (en) 1995-09-04

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