• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:

    公开号:NL2014727A
    申请号:NL2014727
    申请日:2015-04-28
    公开日:2016-03-16
    发明作者:Schuiling Gerard
    申请人:Visser & Smit Bv；
    IPC主号:
    专利说明:

    Remove underground pipe and replace with new one.
    This invention relates to the replacement of an underground pipe, for example for communication, electricity, water or gas, whereby the old pipe is removed.
    An existing way to replace an underground pipe of a utility is to dig a trench so that the old pipe is exposed, remove the old pipe from the trench and place a new pipe in the trench and then close the trench again. This way of working is problematic when the old pipe runs under a tree or other obstacle, for example a park. Often the tree must then be removed, causing it to be lost. Moreover, the removal of the tree can cause damage to, for example, nearby other underground pipes and cables. And the removal of the tree causes a delay, not least when a logging permit must be applied for.
    The invention contemplates an alternative with which work can be carried out faster and moreover a tree can remain standing.
    To this end, it is proposed to expose the underground, old, horizontally running pipe on either side of the obstacle by digging a trench, shortening the old pipe over the parts on both sides of the obstacle, a new pipe on one side of the obstacle. placing the relevant dug channel, aligned with the old tube below the obstacle so that both tubes are behind each other, and causing the new and old tube to move simultaneously in the longitudinal direction of these tubes by moving means, so that the old tube is below the move away from the obstacle and into one channel and at the same time slide the new pipe out of the other channel and end up under the obstacle, so that the new pipe becomes concentric in the cylindrical channel in the ground beneath the obstacle passing through the old pipe abandoned.
    The new tube preferably has a length at least equal to the length that is necessary to bridge the obstacle, preferably with at least some excess length so that the new tube protrudes sufficiently underneath the obstacle on both sides to follow a subsequent tube in line with it. to be able to close, or substantially as long as the old tube or at least slightly longer; and / or the pipe is a maximum of 1, 2 or 3 meters deep.
    The propelling means is preferably a so-called ground rocket or other propulsion which provides a jerky propulsion force. The tubes are preferably advanced by hammering or vibrating.
    The old tube, the new tube and the propelling means are preferably designed so that these three elements move as a whole, for which purpose they are preferably assembled into a unit that behaves as an integral body. These three elements are preferably easily detachably mounted to each other, for example by a clamping or tensioning means.
    In order to mutually fix the old and the new tube and optionally the propellant, means may be provided for minimally radially and / or axially mutually fixating two or three of these three elements.
    As a rule, the old pipe has a diameter of at least 10 cm and / or at most 50 cm. The old pipe is made of cast iron, for example, the new pipe made of plastic (PE). The old and new pipe preferably have the same diameter or differ by no more than 10% in diameter.
    While the old and new pipe are moving through the ground, the diameter of the channel left behind in the ground by the old pipe is preferably slightly increased, for example at least 5%, preferably near the end of the old pipe facing the new pipe tube, through a magnifying means. The new tube therefore fits more easily in the place of the old tube.
    The propelling means, such as ground rocket, or part thereof, is preferably located between the old and the new tube or in the vicinity of the end of the old or new tube which is in the vicinity of the new and old tube respectively.
    It is preferably ensured that the old and new pipe belong to an assembly to which the ground rocket also belongs, if used, which forms such a continuous casing body that the wall of the channel in the ground that is left behind by the old pipe during work is sufficiently is supported so that it cannot collapse to an extent whereby the sliding of the new pipe inwards into this underground channel is prevented. To that end, the parts of this assembly, which form its outer peripheral wall in the area where the old tube is near the new tube, are closely connected to each other. This casing body is preferably such that the wall of the ground channel cannot collapse on site before the new pipe is located at this location.
    The old and new pipe are preferably straight, their length is preferably no greater than 10 or 15 or 20 meters.
    The old pipe can be part of a utility, for example, belongs to the network for the supply of gas, water, electricity or communication to households and companies. The old tube is substantially horizontal and the movement through the ground during replacement is substantially horizontal.
    The invention is explained below with reference to an example shown in the drawing. Variations on this also belong to the invention.
    FIG. 1 shows a side view of a basic body;
    FIG. 2 and 3 show a detail of Fig. 1 for two alternatives.
    The drawing shows an old underground tube 1 that has grown into the root system of a tree 9 and runs horizontally. On either side of this obstacle the tube 1 has been exposed by digging a trench 8. The old tube 1 has been removed from the trenches 8 and a new tube 3 has been placed in the trench 8 on the left in the drawing and aligned with the old tube 1. Between the tubes 1, 3 there is a ground rocket aligned with the tubes 1, 3 2.
    A tensioning cable 4 is threaded through the elements 1, 2 and 3 and is fixed under bias to the end plates 5 so that the elements 1, 2 and 3 are biased against each other. The tensioning cable 4 thus forms part of a provision for easily releasably transferring the propulsive force of the rocket 2 to the pipes 1 and 3. The elements 1, 2 and 3 form an integral unit thanks to the prestressed tensioning cable 4.
    Loosely fitting sleeves 6 (Fig. 2) maintain the mutual alignment of the elements 1, 2 and 3 and prevent these elements 1, 2 and 3 from moving mutually radially. An alternative to the sleeves 6 are the centering stubs 7 on the rocket 2 shown in fig. 3 which fit snugly and the tubes 1 and 3. These elements 6 and 7 form part of a provision for mutually releasably securing the elements 1, 2 and 3 radially.
    The sleeves 6 also act as a broader for the channel in the ground that is left behind by the old tube 1 and is taken up by the new tube 3.
    During operation of the rocket 2, the elements 1, 2 and 3 move simultaneously in the direction of the arrow F, i.e. in the direction of the length of the tube 1 or 3, i.e. substantially horizontally.
    By pulling the end of the cable 4 protruding from the old tube in the direction of arrow F, the operation of the rocket 4 can be supported. Alternatively, the rocket 2 can be omitted and, by pulling only on the cable 4, the tubes 1, 3 can be pulled simultaneously.
    The rocket 2 can optionally be placed at the other end of the tube 1 or 3, i.e. before or after the assembly of the tubes 1 and 3.
    权利要求:
    Claims (4)
    [1]
    Method of removing and replacing with a new tube an essentially horizontal old tube that is situated at a maximum of 2 meters in the ground at the location of an obstacle, wherein the old and new tube are placed mutually aligned one after the other and simultaneously and with at the same speed, so that the new pipe ends up in the channel in the ground that is left behind by the old pipe.
    [2]
    Method as claimed in claim 1, wherein the obstacle is a tree and the old tube has grown into the root system of this tree and wherein on either side of this tree the underground, old, horizontally running straight tube, of cast iron with a diameter of at least 10 cm and up to 50 cm, is exposed by digging a trench, taking into account the root structure of the tree to keep it viable, then the old tube is shortened over the parts on both sides of the obstacle to a length of up to 20 meter, then a new straight plastic pipe with a diameter equal to that of the old pipe, or a maximum of 10% deviating from it and with a maximum length of 20 meters, is placed on one side of the obstacle in the relevant trench, aligned with the old tube below the obstacle so that both tubes are behind each other, and then the new and old tube is made to move simultaneously horizontally in the longitudinal direction of the These tubes are advanced by means of propulsion means, so that the old tube slides out of the obstacle and into one channel and at the same time the new tube slides out of the other channel and ends up under the obstacle, such that the new tube becomes concentric in the cylindrical channel in the ground under the obstacle left behind by the old pipe, and where: the new pipe has a length at least equal to the length needed to bridge the obstacle, plus some excess length so that the new pipe on both sides protrudes sufficiently under the obstacle to be able to connect a subsequent tube in line with it; the propulsion means is a propulsion that provides a jerky propulsion force by hammering or vibrating, such as a ground rocket; the old tube, the new tube and the propelling means are designed so that these three elements move as a whole, for which purpose they are assembled into a unit that behaves as an integral body because these three elements are easily detachably mounted to each other by a clamping or tension means so that they are mutually fixed radially and axially; during the passage of the old and new pipe through the ground, the diameter of the channel left behind in the ground by the old pipe is increased by at least 5%, near the end of the old pipe facing the new pipe, by a magnifying means which belongs to the propellant; the propelling means is located between the old and the new tube; the old tube, the new tube and the propelling means together form a continuous casing because they are closely connected to each other so that the wall of the channel in the ground left behind by the old tube is sufficiently supported during work so that it cannot enter dumping to a degree that hinders the sliding of the new pipe inwards into this underground channel; the old pipe belongs to the network for the supply of gas, water, electricity or communication to households and companies.
    [3]
    3.
    [4]
    Method according to claim 1 or 2, a tension cable (4) is threaded through the unit (1, 2, 3) of old and new pipe and the rocket and is fixed under bias at the ends (5) of this unit so that the elements ( 1, 2, 3) of the unit are biased against each other, and loose tight fitting sleeves (6) belonging to the unit maintain the mutual alignment of the elements (1, 2, 3) of the unit and prevent these elements (1, 2, 3) are able to move mutually radially, which sleeves (6) increase the diameter of the channel in the ground that is left behind by the old pipe 1 as the unit moves through the ground, and by pulling it out of the old one The pipe end of the cable (4) supports the propulsive action of the rocket.
    类似技术:
    公开号 | 公开日 | 专利标题
    CN101148992B|2011-04-06|Over/under monorail system for longwall mining operations
    SE1500159A1|2015-03-30|Method for Building Fiber-to-Home FTTH Networks
    CN105736829A|2016-07-06|Mechanical installation method for pipelines in pipe ditch
    CN103181043A|2013-06-26|Method for laying a plurality of successive sections of cables in order to form a cabled connection of great length
    CN104326302A|2015-02-04|Cable conveying device for oil well
    NL2014727B1|2016-06-20|Remove underground pipe and replace with new one.
    FR3052842B1|2018-07-13|FAST PIPE FASTER MODULE, DRIVING, INSTALLATION AND METHOD THEREOF
    CN205776455U|2016-12-07|A kind of novel ditcher
    CO2019006157A2|2019-08-30|Articulated mobile utility boom system
    NO335492B1|2014-12-22|Method and apparatus for cleaning a tubular body in the ground
    CN104121022A|2014-10-29|Coal mine roadway opening tunneling process
    US20140332636A1|2014-11-13|Method and Apparatus for Energy Chain Installation
    CN210423961U|2020-04-28|Auxiliary mounting mechanism for large-diameter oil and gas pipeline
    CN203734257U|2014-07-23|Long-distance cable laying device
    CN102767643A|2012-11-07|Sectional laying and mounting method for long-distance pipeline in culvert
    CN204190279U|2015-03-04|Monorail crane pulled by a kind of cable
    CN204437472U|2015-07-01|Pipe trench interior conduit Rapid conveying device
    CN205010285U|2016-02-03|Can dismantle combination formula people labour movement pipe device
    CN204221965U|2015-03-25|The pre-buried rubber tube withdrawing device of two-way
    MX2019003630A|2019-06-24|Apparatus and method for applying cables with one or more optical fibers to a pipe for land or submarine pipelines.
    CN104676193A|2015-06-03|Pipe-jacking device for repairing pipeline by pipe-jacking method
    US20150192221A1|2015-07-09|Method for laying a pipeline
    CN104235498A|2014-12-24|Solid wall pipe distribution fixing connector
    CN203713064U|2014-07-16|Large-caliber socket and spigot joint mounting rack
    JP4606064B2|2011-01-05|Pipeline laying method and apparatus
    同族专利:
    公开号 | 公开日
    NL2014727B1|2016-06-20|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US4637756A|1985-01-23|1987-01-20|Boles Flounoy W|Apparatus for removing and replacing pipe beneath an earthfill|
    GB2206173A|1987-06-26|1988-12-29|Kurimoto Ltd|Method of buried pipe replacement|
    US5205671A|1991-11-13|1993-04-27|Trenchless Replacement Systems, Ltd.|Trenchless pipeline replacement|
    CA2245479A1|1998-08-21|2000-02-21|Nick Nikiforuk|Apparatus and method for extracting and replacing buried pipe|
    WO2008071997A1|2006-12-15|2008-06-19|Kobus Jacobus Hendrik Cilliers|Method for replacing pipes, and apparatus therefor|
    法律状态:
    2018-12-05| MM| Lapsed because of non-payment of the annual fee|Effective date: 20180501 |
    优先权:
    申请号 | 申请日 | 专利标题
    NL2012713|2014-04-29|
    [返回顶部]