GB2261687A - Improvements in or relating to piling and pipe lining - Google Patents

Improvements in or relating to piling and pipe lining Download PDF

Info

Publication number
GB2261687A
GB2261687A GB9224337A GB9224337A GB2261687A GB 2261687 A GB2261687 A GB 2261687A GB 9224337 A GB9224337 A GB 9224337A GB 9224337 A GB9224337 A GB 9224337A GB 2261687 A GB2261687 A GB 2261687A
Authority
GB
United Kingdom
Prior art keywords
pipe
piling
liner
frame
piles
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.)
Granted
Application number
GB9224337A
Other versions
GB9224337D0 (en
GB2261687B (en
Inventor
George Philip Marshall
Charles John Ashdown
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.)
North West Water Ltd
Original Assignee
North West Water 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 to GB919124592A priority Critical patent/GB9124592D0/en
Application filed by North West Water Ltd filed Critical North West Water Ltd
Publication of GB9224337D0 publication Critical patent/GB9224337D0/en
Publication of GB2261687A publication Critical patent/GB2261687A/en
Application granted granted Critical
Publication of GB2261687B publication Critical patent/GB2261687B/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L55/00Devices or appurtenances for use in, or in connection with, pipes or pipe systems
    • F16L55/16Devices for covering leaks in pipes or hoses, e.g. hose-menders
    • F16L55/162Devices for covering leaks in pipes or hoses, e.g. hose-menders from inside the pipe
    • F16L55/165Devices 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
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D13/00Accessories for placing or removing piles or bulkheads, e.g. noise attenuating chambers
    • E02D13/04Guide devices; Guide frames

Abstract

During pipe lining in which a liner pipe 32 is moved into a pipe 13 to be lined, chambers 10,11 are formed in the ground at the ends of pipe 13. Piles 19 are guided during insertion into the ground by structure 16 extending between chambers 10, 11 on both sides thereof. Each structure 16 has laterally inner and outer parts on opposite side of piles. The structures 16 support a guide roller 22 for the liner 32 and a pivotable frame 15 supporting a liner die 14. The structures 16 are in modular form and support a winch mast 30 associated with a winch 26 for pulling the liner through pipe 13. <IMAGE>

Description

IMPROVEMENTS IN OR RELATING TO PILING AND PIPE LINING This invention relates to piling and pipe lining.
According to this invention apparatus for piling comprises structure for guiding a pile during insertion into the ground.
The structure may be elongate transverse to the pile.
There may be structure on opposite sides of the pile.
There may be spaced piles each having such a structure, with the structures being connected.
The structure may support a guide roller for a liner during pipe lining.
The structure may support a frame for a die through which a liner moves during pipe lining. The frame may be pivotable with respect to the structure.
A winch device may include a mast secured to such a structure, and bracing means may be operatively engaged with piles associated with the structure.
The invention provides a method of piling comprising guiding the pile during insertion into the ground.
The invention may be performed in various ways and one specific embodiment with possible modifications will now be described by way of example with reference to the accompanying diagrammatic drawings, in which: Fig.l is a side view of part of pipe lining apparatus; Fig.2 is a side view of another part of the apparatus; Fig.3 is a cross-section through a trench; Fig.4 is a view of an outer pile frame; Fig.5 is a view of an inner pile frame; Fig.6 is a cross-section showing a die frame; Fig.7 is a side view of the die frame; and Fig.8 is part of Fig.2 on an enlarged scale.
In lining a buried pipe, for example a gas or water pipe, a chamber is dug in the ground at the ends of a length of pipe that is to be lined, and a plastics liner pipe is moved through a die, which reduces the diameter of the liner, and into the buried pipe under tension. The tension is then released and the liner recovers in diameter to engage firmly the inner surface of the buried pipe. During the recovery in liner diameter, the length of the liner becomes less. A succession of adjacent lengths of pipe can be lined and the adjacent ends of the liner pipes are joined together to form a continuous liner pipe. The chambers are then backfilled.
The present arrangement is suitable for such pipe linings.
Chambers 10, 11 are formed in the ground 12 at the ends of the length of pipe 13 which is to be lined.
A die 14 is mounted in a frame 15 which is supported on structure 16 which is supported on the ground 12.
The structure or the piling frame 16 is at each side of the trench or chamber 10,11 and has inner and outer parts 17,18 which act as guides for the insertion of interlocking piles 19 which form a lining to the sides of the chambers 10,11.
Walings 20 are provided and have hydraulic waling jack struts 21 as required.
A guide roller 22 is supported on a frame 23 from the structure 16 to guide the liner pipe 32. The die frame 15 is pivotally mounted on structure 16 at 24 and can be pivoted by jack 25 to a desired position.
A winch 26 operates winch cable 27 which extends around rollers 28,29, mounted on a winch mast 30, which is supported by structure 16, and connects to a fastener 31 at the front end of the liner 32.
At the lower end of the mast 30 a frame 33 transfers the thrust loading to waling 34,20.
As shown in Fig.l the chamber 10 is stepped as at 34, In the example of Fig.l, the bending radius of the liner 32 is about 40 times the liner diameter, and the die frame 15 has been set down at into the end of the trench to reduce the approach angle. This also keeps the liner pipe close to the ground for ease of handling and safety, and generally reduces drag (and therefore the winch tension).
In Fig. 1, piling frames, walings and two piles have been shown. The walings are capable of supporting the piles over at least 6 metre lengths without strutting, and the positioning of the strutting is flexible so that individual struts can be placed wherever necessary to suit the actual position of the liner. This Fig also shows examples of the vector forces Tw (winch) and Tr (roller) that may be imposed upon the piling frames by the winching operation.
Fig.3 shows a typical cross section, indicating for example a 2 metre clearance between walings for equipment access, and also shows the piles toed in below the trench invert 37. This may not be possible if the pipe trench has been excavated in rock, and the piles are capable of providing cantilever trench wall support below the level of the walings. Fig.2 shows the location and bracing of the winch mast, utilising an extra waling near the trench bottom and thrust transfer frames which will take the thrust (up to 40 tonnes) transmitted from the bottom of the winch mast by pivoting bracings 38.
Because of the need to locate the winch mast bracings, the die frame and the guide roller for each insertion, it is of advantage if the geometry of the mountings is the same each time. The piling frame system is therefore designed so that it cannot be assembled out of alignment, nor be pushed out of alignment by the forces encountered during pile driving.
As all the equipment has to be transported along the pipe route from chamber to chamber as lining progresses, it is preferable that it can be easily handled and transported. All items are provided with suitable lifting points located above their centre of gravity, so that they are easy to handle and align.
The piling frame structure 16 has a modular construction giving ample stiffness in both vertical and horizontal planes. The component parts are as light as possible, consistent with being strong enough to withstand the forces applied during operation, and robust enough. The dimensions shown are examples.
In assembly coupling pins are used. These pins are of generous size and of design to withstand being repeatedly driven in and out, and may be held captive by way of heavy duty chain. A pin is shown at 50.
The structure 16 has two types of frame, an outer and an inner, shown in Figs.4,5. These Figs show a fully welded lattice type construction, but alternative types of construction may be used. All the outer frames 40 are the same, so as to be fully interchangeable, as will be the inner frames 41, which will incorporate mountings for the die frame, guide roller, struts and puncheons. A typical assembly would employ ten of each frame (used five per side).
The couplings 42,50 are able to transfer the considerable loadings that may occur in service, into the main structure of the frame.
The piling frames perform two primary functions.
As they will normally sit directly upon the ground, they will not initially need to apply any thrust to prevent ground movement, and their first function will be to provide precise location and alignment for the piles. As the excavation of the chambers 10,11 proceeds, a certain amount of ground thrust will occur, but will be taken mostly by the walings, and their second function will be to provide a structural frame work to transfer the die-drawing forces to the anchorage of the piles. Only in very bad ground conditions, will they be required to perform a secondary function of ground support The inner frames are joined together top and bottom by fixed length struts 43. It will be seen from Fig.l that three bottom struts and one top strut are left out at the die frame end, but as there will be no piles in this section of the piling frame, the necessary rigidity is provided by linking the inner frames to the outers.
Struts 43 are located as desired, preferably regularly.
If it is desired to provide continuous interlocking pile barrier against the ingress of water, it will not normally be possible to link the inner and outer piling frames other than beyond the extremities of the pile curtains. Both the inner and outer piling frames will possess considerable rigidity in all three axes, so intermediate linking should not be necessary, though links could be accommodated by slotting the top sections of selected piles.
For accurate placement it is desirable to provide a good sliding fit to the piles as they are inserted, and the inner frame is therefore provided with 'bolt on' liner guide plates indicated at 44 to fit the actual type of pile used. This allows alternative types of pile to be used simply by changing the guide plates.
During die-drawing operations, the inner frames are tightly clamped to the piles, as the transfer of diedrawing forces to the pile anchorage will depend upon the frictional grip between piles and frames. It may be that such 'clamping' is inherent in the system, but if this is not so, a suitable clamping mechanism is incorporated into the inner piling frame and liner guide system which could be either manually or hydraulically operated, indicated schematically at 45.
The walings 20 are the same length as the piling frames. The walings are provided with attachments 46 for puncheons to match attachments 46a on the bottom edge of the inner piling frames. The puncheons themselves are of adjustable length to cope with a substantial variation in waling position.
The hydraulic struts 21 are capable of easy fitting and removal, and it is possible to replace them in any position along the walings. It is possible to assemble pairs of walings as a frame by temporarily locking two struts into position, so that the walings can be inserted and put into service without an operative having to enter the trench.
The typical trench arrangement shown in Fig.l provides some 14 metres of liner for recovery at the end of the insertion, but in the case of long runs, this may not be sufficient. To cater for this situation, the die frame can be moved back in 4 metre steps by simply adding sections to the piling frame.
To avoid having to extend the excavation, the die frame can be raised clear of the ground by turning the final inner frames the other way up, thus placing the mountings towards the top of the frames rather than the bottom.
In order that the die-drawing equipment is accurately aligned with the pipe and correctly positioned in relation to the pipe joints, the ground support installation and associated excavation is carried out in accordance with the following method, which describes the sequence of operations in excavating and setting up a typical (entry) chamber 10: The exact line of the pipe 13 is first determined, so that the centre line of the chamber can be set out.
Starting at one end, a pilot excavation is carried out down to the crown of the pipe 13, extended along the centre line until a pipe joint is reached, and then extended a further 500mm beyond it. The 'far end of the chamber can be set out at this point.
Another pilot excavation is then made at the other end of the excavation, digging some 12 metres back from the first pipe joint so that a second pipe joint crown is exposed, and then extended a further 500mm beyond it. The near end of the chamber, which will be 13 metres long, can be set out at this point.
The end of the piling frames extend for example 1.5 metres beyond the end of the chamber (2 metres beyond the pipe joint) so the first pair of inner frames is set up in that position symmetrically spaced about, and parallel with, the centre line, and joined together with fixed length struts top and bottom.
The first pair of outer frames are then placed in position outside the inner frames and coupled to them at each end, thus forming a piling frame 4 metres long.
Piles are then driven at all four corners of the piling frame to a sufficient depth to hold it firmly in position during the pile driving operation, after which piles are driven progressively along both sides of the piling frame, taking care to maintain good vertical alignment.
Excavation is then carried out to the full depth rewired, starting from the far end, and continuing up to about 500mm from the near end of the piling frame.
The second pair of inner frames is then coupled to the first pair, and the internal struts fitted. The second pair of outer frames is then coupled to the first pair, and coupled to the inner frames at the near ends.
A couple of piles are part driven at the near ends of the second section to hold it in place.
Piles are then driven progressively along both sides of the second section, removing the couplings between the inner and outer frames as they are reached, and the whole sequence repeated until the fourth section has been completed. The first walings are inserted immediately excavation of the second section has proceeded far enough.
The final frame sections are coupled to the fourth sections, and the inners and outers coupled together, after which the excavation is extended a further 7 metres to a depth of 1 metre and width of 2 metres to accommodate the die frame, which can then be on its mountings.
One of the exposed pipe sections is cut out, after which any remaining pipe sections may be removed intact. The trench bottom can be trimmed and a sump dug at each end for ground water pumping. The guide roller is then located on its mountings.
Tr may for example be up to 10 tonnes.
Tw may for example be up to 40 tonnes.
The arrangement above provides a method of piling comprising guiding the pile during insertion into the ground. The guide structure is separate from the piles; is on both sides of the piles and is on both sides of the excavated chamber.

Claims (11)

1. Apparatus for piling comprising structure for guiding a pile during insertion into the ground.
2. Apparatus as claimed in Claim 1, in which the structure is elongate transverse to the pile.
3. Apparatus as claimed in Claim 1 or Claim 2, in which the structure is on opposite sides of the pile.
4. Apparatus as claimed in any preceding claim, comprising spaced piles each associated with a said structure.
5. Apparatus as claimed in any preceding claim, in which the structure supports a guide roller for a liner for pipe lining.
6. Apparatus as claimed in any preceding claim, in which the structure supports a frame for a die for a liner for pipe lining.
7. Apparatus as claimed in Claim 6, in which the frame is pivotable with respect to the structure.
8. Apparatus as claimed in any preceding claim, including a winch mast secured to the structure.
9. Apparatus as claimed in Claim 8, including bracing means operatively engaged with piles associated with the structure.
10. Apparatus for piling substantially as herein before described with reference to and as shown in the accompanying drawings.
11. A method of piling comprising guiding the pile during insertion into the ground.
GB9224337A 1991-11-20 1992-11-20 Improvements in or relating to piling and pipe lining Expired - Lifetime GB2261687B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB919124592A GB9124592D0 (en) 1991-11-20 1991-11-20 Improvements in or relating to piling and pipe lining

Publications (3)

Publication Number Publication Date
GB9224337D0 GB9224337D0 (en) 1993-01-13
GB2261687A true GB2261687A (en) 1993-05-26
GB2261687B GB2261687B (en) 1996-05-08

Family

ID=10704890

Family Applications (2)

Application Number Title Priority Date Filing Date
GB919124592A Pending GB9124592D0 (en) 1991-11-20 1991-11-20 Improvements in or relating to piling and pipe lining
GB9224337A Expired - Lifetime GB2261687B (en) 1991-11-20 1992-11-20 Improvements in or relating to piling and pipe lining

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB919124592A Pending GB9124592D0 (en) 1991-11-20 1991-11-20 Improvements in or relating to piling and pipe lining

Country Status (1)

Country Link
GB (2) GB9124592D0 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994010496A1 (en) * 1992-10-26 1994-05-11 British Gas Plc Apparatus for bending plastic pipe
US5522678A (en) * 1994-04-18 1996-06-04 Kelley Company, Inc. Ground anchors
EP0762030A1 (en) * 1995-09-08 1997-03-12 Gaz De France Device for thrusting a plastic pipe for the interior lining of metal piping to be renovated

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4059964A (en) * 1975-04-08 1977-11-29 Pavese John R Sheeting installation system
GB1561101A (en) * 1976-07-07 1980-02-13 Hudswell Morrice Ltd Apparatus for the driving and extraction of sheet piles
EP0075453B1 (en) * 1981-09-18 1989-05-10 Wilkinson, Barbara Method of and apparatus for shoring a trench

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB866244A (en) * 1958-08-14 1961-04-26 Vincent Esme Vincent Improved foundation pile for a building
IT1172825B (en) * 1983-04-18 1987-06-18 Tecnomare Spa Submarine template for drilling wells for the exploitation of hydrocarbon deposits in the sea
US4690588A (en) * 1984-05-04 1987-09-01 C-Lock Retention Systems, Inc. Seawall

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4059964A (en) * 1975-04-08 1977-11-29 Pavese John R Sheeting installation system
GB1561101A (en) * 1976-07-07 1980-02-13 Hudswell Morrice Ltd Apparatus for the driving and extraction of sheet piles
EP0075453B1 (en) * 1981-09-18 1989-05-10 Wilkinson, Barbara Method of and apparatus for shoring a trench

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994010496A1 (en) * 1992-10-26 1994-05-11 British Gas Plc Apparatus for bending plastic pipe
GB2271826B (en) * 1992-10-26 1996-06-05 British Gas Plc Apparatus for bending plastic tube
US5580589A (en) * 1992-10-26 1996-12-03 British Gas Plc Apparatus for bending plastic pipe
US5522678A (en) * 1994-04-18 1996-06-04 Kelley Company, Inc. Ground anchors
EP0762030A1 (en) * 1995-09-08 1997-03-12 Gaz De France Device for thrusting a plastic pipe for the interior lining of metal piping to be renovated
FR2738618A1 (en) * 1995-09-08 1997-03-14 Gaz De France PLASTIC PIPE PUSHING APPARATUS TO TUBE INTERNALLY A METAL PIPING TO BE RENOVATED
US5839613A (en) * 1995-09-08 1998-11-24 Gaz De France Device for pushing a tube of plastics material for internally casing a metal piping to be renovated

Also Published As

Publication number Publication date
GB2261687B (en) 1996-05-08
GB9124592D0 (en) 1992-01-08
GB9224337D0 (en) 1993-01-13

Similar Documents

Publication Publication Date Title
US4218158A (en) Pipe handling method and apparatus
CA2048390C (en) Extraction of underground pipe
US4480942A (en) Apparatus and method for laying pipe
US20080050213A1 (en) Trench box moving apparatus and method
US4741646A (en) Machine for laying conduct and methods for use thereof
WO2013166559A1 (en) Attachment for pipe laying
US6149349A (en) Apparatus and method for extracting and replacing buried pipe
US4714381A (en) Machine for laying conduit and methods for use thereof
US3606757A (en) Method for laying pipe
US2074003A (en) Method of culverting embankments
US3992887A (en) Trench shoring assembly with force transferring accessory
US3212270A (en) Safety device for excavations
US3496727A (en) Apparatus for laying pipe
US5522678A (en) Ground anchors
US5584351A (en) Drilling machine and method of horizontal boring
US4268190A (en) Pipe handling method and apparatus
GB2261687A (en) Improvements in or relating to piling and pipe lining
JP2005126957A (en) Excavating method and excavating device for pile work
KR101292717B1 (en) Construction method of underground structues using the enclosure traction, and the structure of the enclosure
US3638438A (en) Trench-forming, pipelaying and trench wall supporting machine
GB2094373A (en) Trench shoring
US5375945A (en) Method and apparatus for thrusting a pipeline into bore hole
JP3761173B2 (en) Connecting device for pipes in excavation grooves
US6068426A (en) Method of connecting conduits
JP2006070437A (en) Earth retaining method and device for excavated ditch

Legal Events

Date Code Title Description
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)

Free format text: REGISTERED BETWEEN 20110113 AND 20110119

PE20 Patent expired after termination of 20 years

Expiry date: 20121119