EP0745175B1 - Verfahren zum ausbau eines erdkerns aus einem grabenlos verlegten rohr und molch zur durchführung des verfahrens - Google Patents

Verfahren zum ausbau eines erdkerns aus einem grabenlos verlegten rohr und molch zur durchführung des verfahrens Download PDF

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Publication number
EP0745175B1
EP0745175B1 EP95909623A EP95909623A EP0745175B1 EP 0745175 B1 EP0745175 B1 EP 0745175B1 EP 95909623 A EP95909623 A EP 95909623A EP 95909623 A EP95909623 A EP 95909623A EP 0745175 B1 EP0745175 B1 EP 0745175B1
Authority
EP
European Patent Office
Prior art keywords
bracing
pipe
devil
actuator
head plate
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
EP95909623A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0745175A1 (de
Inventor
Horst Derwand
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Individual
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Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP0745175A1 publication Critical patent/EP0745175A1/de
Application granted granted Critical
Publication of EP0745175B1 publication Critical patent/EP0745175B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • E21B37/00—Methods or apparatus for cleaning boreholes or wells
    • E21B37/02—Scrapers specially adapted therefor
    • E21B37/04—Scrapers specially adapted therefor operated by fluid pressure, e.g. free-piston scrapers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto 
    • B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
    • B08B9/027—Cleaning the internal surfaces; Removal of blockages
    • B08B9/04—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes
    • B08B9/049—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes having self-contained propelling means for moving the cleaning devices along the pipes, i.e. self-propelled
    • 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
    • E21B4/00—Drives for drilling, used in the borehole
    • E21B4/18—Anchoring or feeding in the borehole

Definitions

  • the invention relates to a method for expanding an earth core from a trenchlessly laid by ramming or pressing Pipe with both pipe ends exposed, which one Process used in a pipe end a pig and in Longitudinal direction is moved through the tube, with the Newt's core pushed out of the other end of the pipe becomes.
  • US-A-4 369 002 discloses a method for removing a Earth core penetrated into a trenchless pipe described, which comprises several stages. With help of a shovel-like working elements that under the action driven by vibrating shock loads along the pipe earth is absorbed and at the same time an earth pillow formed on which the work element is supported. After taking up an earth charge, the vibrating pushing motion the working element out of the tube moved out and the earth charge removed. After completion the gradual removal of the earth above the earth pillow will also this removed with the help of the working element.
  • the invention has for its object a method of Specify the type mentioned, with which it is easy and economical way and with minimal risk of accident is possible for the construction site or operating personnel, the earth core from a trenchless pipe jacking Remove pipe.
  • the method according to the invention provides a solution to this problem proposes that the newt should be driven gradually a length-adjustable lifting device is carried out is supported on the inner wall of the tube, the lifting device after each extension stroke to their starting position brought and their support in the direction of advance the completed step is followed up.
  • the earth core is through a controlled advance of the pig from the pipe pushed out, the lifting device of the pig mechanically supported on the inner wall of the tube.
  • the lifting device of the Molches can be an electric or hydraulic drive have and via cables or hoses and suitable control devices to one located outside the pipeline Energy source must be connected. About the feeding of the Drive energy can thus be easily Control the movement of the lifting device.
  • a pig be that of a headstock, one changeable in length Lifting device and clamping devices, wherein the head plate with one end of the lifting device and with a first jig and the other end of the Lifting device connected to a second clamping device is, the clamping devices alternately in a clamping position, in which it can be pressed against the inner wall of a pipe are, or are movable into a release position in which they are lifted off the inner wall of the tube and where the lifting device and the clamping devices by means of remotely controllable, hydraulic or electric drives can be operated are.
  • the pig according to the invention is characterized by a simple one and robust construction and is about the control its drives easy to use.
  • An adaptation of the Pigs on different pipe dimensions is easy Way possible by the head plate and the tensioners can be adapted to the respective pipe diameter. No complex renovation work is required for this.
  • Are preferred for actuating the lifting device and the clamping devices uses hydraulic drives, connected to the drive units common in construction and be driven with biodegradable hydraulic oils can.
  • the lifting device by a double-acting, hydraulically actuated lifting cylinder be formed with a by the piston rod or the cylinder housing formed end on the head plate and attached with the other end to the second clamping device is.
  • the lifting cylinder can be adjusted accordingly extended and retracted and thereby enables a simple adjustment of the tensioning device.
  • the Clamps can be radially movable jaws or Have clamping shoes on the head plate or the lifting device are stored and each assigned by an hydraulically actuated cylinder radially are pressed against the outside of the inner wall of
  • the first clamping device in the manner of an inner shoe brake has two radially movable jaws, the one end attached to one on the headstock Pins are rotatably mounted and their opposite Ends movable apart by means of a spreading device are.
  • This configuration of the first clamping device leaves easily on the back of the headstock mount, with the central area of the headstock for the attachment of the lifting device is left out.
  • Spreading device according to the invention is a double acting hydraulic cylinder that between the ends the jaws arranged and by positive joints is connected to the ends of the jaws.
  • An advantageous embodiment of the second clamping device is that at least two Tension shoes with extending in the longitudinal direction of the pig Skids are provided, at least one of which Clamping shoe radial to the pipe axis with the help of a clamping cylinder is movable, which is supported on the other tensioning shoe is.
  • the tension shoes can be used for support the reaction force from the feed force of the lifting device required and generated by the clamping cylinder Effectively transmit clamping forces to the pipe wall.
  • the tension shoes also serve to guide the lifting device on the inner wall of the tube while the lifting device is reset.
  • An embodiment is advantageous when of the tension shoes pivotally mounted on a pressure plate are attached to one end of the lifting device is.
  • the lifting device can be kept away surrounding ring can be provided on which the or the clamping cylinders are supported in the radial direction. Through the ring, the radially inward Reactive forces absorbed from the clamping forces and with each other brought into balance so that the inside of the ring arranged lifting device by these forces remains unencumbered.
  • the pig 1 shown in FIGS. 1 to 4 consists of a circular disc-shaped head plate 2 with a Scraper ring 3, with radial preload on the inner wall 4 of a tube 5 rests.
  • the front 6 of the head plate 2 serves to push out an earth core 7, which itself in front of the head plate 2 in the tube 5.
  • the piston rod 9 is double acting hydraulic lifting cylinder 10 attached.
  • the piston rod 9 is shown in FIG. 1 Position fully retracted into the lifting cylinder 10.
  • the clamping device 11 On the back 8 of the head plate 2 is a tensioning device 11 arranged.
  • the clamping device 11 has two Clamping jaws 12, 13 with one end on one in the Head plate 2 screwed pin 14 rotatably mounted are. Between the opposite ends of the jaws 12, 13 is a double-acting hydraulic cylinder 15 arranged, the cylinder housing 16 with the jaws 12 and its piston rod 17 with the jaws 13 articulated connected is.
  • the articulated connection is through Hinge pin 18 formed the forked end of the jaws 12, 13 and with the cylinder housing 16 or piston rod 17 connected pressure pieces 19 penetrate and are aligned parallel to the pin 14.
  • the end of the lifting cylinder opposite the head plate 2 10 is with a pressure plate 21, a second clamping device 22 firmly connected.
  • the pressure plate 21 has its Outside circumference three bearing blocks 23, one in each Clamping shoe 24 on a journal 25 around a tangential Axis is pivotally mounted.
  • the tension shoes 24 are with Provide skids 26 which are parallel to the lifting cylinder 10 extend along the inner wall 4 of the tube 5 and one have cylindrical outer surface, the curvature of which is essentially corresponds to the curvature of the inner wall 4.
  • Skids 26 and a lifting cylinder 10 with little Support ring 27 encompassing play are radially aligned Clamping cylinder 28 arranged.
  • the clamping cylinders 28 are with its cylinder housing 29 attached to the support ring 27.
  • the pistons 30 of the clamping cylinders 28 are on a pressure plate 31 supported on the inside of the Skids 26 is located.
  • the skids 26 form a sliding guide for the formed by the lifting cylinder 10 and the clamping device 22 Part of the newt 1.
  • the clamping cylinders 28 with Pressurized they press the skids 26 radially outwards to the inner wall 4 of the tube 5 with such Force that the resulting frictional connection sufficient to move the earth core 7 on the lifting cylinder 10 occurring reaction force to the tube 5 transfer.
  • FIG. 5 shows one from a starting pit 32 driven to a target pit 33 by a dam 34 Pipe 5, in which there is an earth core 7, which is used during tunneling has penetrated into the tube 5.
  • the starting pit 32 adjacent end of the tube 5 is one Pig 1, of the type previously described.
  • the Molches 1 became the core of the earth at that of the starting pit 32 facing pipe end by hand on one of the lengths of the Molches 1 corresponding length expanded.
  • the newt 1 in the tube 5 used.
  • the newt 1 is over pressure hoses 35 connected to a drive unit 36, the one Motor, a pump, a hydraulic control device contains.
  • the control device is operated by an operator 37 operated.
  • the clamping cylinders are first 28 of the pig 1 pressurized in the direction of extension and thereby the skids 26 against the inner wall of the tube 5 stretched. Then pressure is applied to the Piston rod opposite side of the piston of the lifting cylinder 10 passed, whereby the piston rod 9 extended and the head plate 2 moves towards the earth core 7 becomes. Here, the earth core 7 is compressed and finally moved towards the target pit 33.
  • the reaction force from that exerted on the head plate 2 Driving force is in this case via the tensioning device 22 supported on the tube 5.
  • the lifting cylinder 10 relieves the tensioning device 22 be solved and by acting on the cylinder 15 the jaws 12, 13 of the clamping device 11 on the Piston plate 2 pressed against the wall of tube 5. Then the piston of the cylinder 10 on the Side of the piston rod 9 pressurized, whereby the piston rod 9 is retracted into the lifting cylinder 10 becomes. Because in this process the head plate 2 through the clamping device 11 is locked, the housing of the lifting cylinder 10 together with the tensioning device 22 moved towards the head plate 2, the Slide the skids 26 along the inner wall of the tube 5. If the piston rod 9 is completely retracted, so the control process described above is repeated.
  • the newt will be 1 step by step the pipe 5 moved against the earth core 7, the earth core 7 pressed out of the tube 5 and from the pit 33 is recorded. It is for the process described irrelevant whether large stones, silty, cohesive in the core of the earth or sandy soils are stored because of the earth's core pushed from behind over the entire length of the tube being, the rate of advance of the pump power depending on the drive unit and via the Control is controllable.
  • the pig in the reverse driving style i.e. Extending the piston rod 9 when the tensioning device is tensioned 11 and retracting the piston rod 9 at tensioned clamping device 22, backwards out of the Driving section are driven out.
  • the hydraulic control of the lifting cylinder 10 and Clamping devices 11, 22 can preferably have a Control block with integrated solenoid valves and main lines for forward and return to the control block or via a mechanically operated control block from the outside done manually.
  • the control block can be attached to the pig 1 be arranged, the control of the solenoid valves via an electrical control line from the drive unit or a battery.

Landscapes

  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Physics & Mathematics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Mechanical Engineering (AREA)
  • Earth Drilling (AREA)
  • Excavating Of Shafts Or Tunnels (AREA)
  • Cleaning In General (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Processing Of Solid Wastes (AREA)
EP95909623A 1994-02-15 1995-02-09 Verfahren zum ausbau eines erdkerns aus einem grabenlos verlegten rohr und molch zur durchführung des verfahrens Expired - Lifetime EP0745175B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4404712A DE4404712A1 (de) 1994-02-15 1994-02-15 Verfahren zum Ausbau eines Erdkerns aus einem grabenlos verlegten Rohr und Molch zur Durchführung des Verfahrens
DE4404712 1994-02-15
PCT/DE1995/000159 WO1995021984A1 (de) 1994-02-15 1995-02-09 Verfahren zum ausbau eines erdkerns aus einem grabenlos verlegten rohr und molch zur durchführung des verfahrens

Publications (2)

Publication Number Publication Date
EP0745175A1 EP0745175A1 (de) 1996-12-04
EP0745175B1 true EP0745175B1 (de) 1999-04-28

Family

ID=6510243

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95909623A Expired - Lifetime EP0745175B1 (de) 1994-02-15 1995-02-09 Verfahren zum ausbau eines erdkerns aus einem grabenlos verlegten rohr und molch zur durchführung des verfahrens

Country Status (7)

Country Link
US (1) US5758730A (ja)
EP (1) EP0745175B1 (ja)
JP (1) JPH10503814A (ja)
AT (1) ATE179487T1 (ja)
AU (1) AU1804395A (ja)
DE (3) DE4404712A1 (ja)
WO (1) WO1995021984A1 (ja)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19529948A1 (de) * 1995-08-14 1997-03-06 Preussag Anlagenbau Molch zum Ausbau eines Erdkerns aus einem grabenlos verlegten Rohr
DE19540200C2 (de) * 1995-10-28 1997-10-16 Tracto Technik Rohrentleerungssystem
DE19713737C2 (de) * 1997-04-03 1999-03-25 Cd Durchoerterungstechnik Chri Verfahren und Vorrichtung zum Ausbau eines Erdkerns aus einem grabenlos verlegten Rohr
US6732816B2 (en) 2000-05-03 2004-05-11 Lattice Intellectual Property Limited Method of forming a trenchless flowline
US8684104B1 (en) 2007-04-13 2014-04-01 Andrew J. Fisk, III Detachable pipe ramming head with efficient lubrication dispersal
EP2139621B1 (en) * 2007-04-27 2015-06-10 Aquamaxit L.P. Cleaning apparatus for large diameter pipes
NO333300B1 (no) * 2008-06-05 2013-04-29 Norwegian Hard Rock Drilling As Anordning ved bergboremaskin
CN104358520A (zh) * 2014-11-04 2015-02-18 无锡市钻通工程机械有限公司 推管机的夹持推拉机构
CN107413785B (zh) * 2017-09-26 2019-12-13 抚州市东乡区莉芳节能环保科技有限公司 一种天然气管道清洗用快速清洗装置
CN111420949A (zh) * 2020-04-12 2020-07-17 张靖 一种市政排水管廊调蓄冲洗装置及其实施方法
CN112221678A (zh) * 2020-10-13 2021-01-15 潘东强 一种河道水污染处理设备
CN116441249B (zh) * 2023-06-09 2023-09-12 山西一建集团有限公司 暖通管道在土建构件中的铺设装置

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4314615A (en) * 1980-05-28 1982-02-09 George Sodder, Jr. Self-propelled drilling head
US4456078A (en) * 1980-10-23 1984-06-26 Adam Arthur J L Earth boring method and apparatus
GB2091782B (en) * 1981-01-23 1984-08-15 Inst Gornogo Dela Sibirskogo O Emtying spoil from pipes
DE3431233A1 (de) * 1984-08-24 1986-03-06 Institut gornogo dela Sibirskogo otdelenija Akademii Nauk SSSR, Novosibirsk Verfahren zum grabenlosen verlegen von rohrleitungen
DE3609111A1 (de) * 1986-03-19 1987-10-01 Turmag Turbo Masch Ag Bohrmaschine
SE8702543D0 (sv) * 1987-06-17 1987-06-17 Stig Westman Redskap for arbeten i rorledningar
DK0497802T3 (da) * 1989-10-25 1994-11-21 Ilomaeki Valto Fremgangsmåde til montering af rørledninger i undergrunden
DE4219676C2 (de) * 1992-06-16 1994-12-22 Tracto Technik Verfahren und Vorrichtung zum grabenlosen Verlegen von Produktrohren
SE501283C2 (sv) * 1993-05-06 1995-01-09 Lars Sterner Bergborrmaskin

Also Published As

Publication number Publication date
US5758730A (en) 1998-06-02
WO1995021984A1 (de) 1995-08-17
AU1804395A (en) 1995-08-29
DE59505779D1 (de) 1999-06-02
DE19580049D2 (de) 1996-12-19
DE4404712A1 (de) 1995-08-17
EP0745175A1 (de) 1996-12-04
ATE179487T1 (de) 1999-05-15
JPH10503814A (ja) 1998-04-07

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