WO2004018787A1 - Dispositif de protection contre les inondations dans des trous d'homme et couvercles d'acces - Google Patents

Dispositif de protection contre les inondations dans des trous d'homme et couvercles d'acces Download PDF

Info

Publication number
WO2004018787A1
WO2004018787A1 PCT/GB2003/003547 GB0303547W WO2004018787A1 WO 2004018787 A1 WO2004018787 A1 WO 2004018787A1 GB 0303547 W GB0303547 W GB 0303547W WO 2004018787 A1 WO2004018787 A1 WO 2004018787A1
Authority
WO
WIPO (PCT)
Prior art keywords
pipe
buoyant portion
casing
manhole
buoyant
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.)
Ceased
Application number
PCT/GB2003/003547
Other languages
English (en)
Inventor
Alexander Bruce Wilson
Fiona Meikle
Martin Mansell
Alastair Wright
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.)
MEIKLEWALL Ltd
SCOTTISH WATER
University of the West of Scotland
Altrad Babcock Ltd
Original Assignee
MEIKLEWALL Ltd
SCOTTISH WATER
Mitsui Babcock Energy Ltd
University of the West of Scotland
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
Application filed by MEIKLEWALL Ltd, SCOTTISH WATER, Mitsui Babcock Energy Ltd, University of the West of Scotland filed Critical MEIKLEWALL Ltd
Priority to GB0501226A priority Critical patent/GB2407113B/en
Priority to AU2003251065A priority patent/AU2003251065A1/en
Publication of WO2004018787A1 publication Critical patent/WO2004018787A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06C—LADDERS
    • E06C9/00—Ladders characterised by being permanently attached to fixed structures, e.g. fire escapes
    • E06C9/02—Ladders characterised by being permanently attached to fixed structures, e.g. fire escapes rigidly mounted
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D29/00—Independent underground or underwater structures; Retaining walls
    • E02D29/12—Manhole shafts; Other inspection or access chambers; Accessories therefor
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D29/00—Independent underground or underwater structures; Retaining walls
    • E02D29/12—Manhole shafts; Other inspection or access chambers; Accessories therefor
    • E02D29/122—Steps or handrails for shafts

Definitions

  • the present invention relates to an apparatus for flood protection of manholes and other access chambers.
  • the term 'manhole' is used to denote any artificial ground hole prone to flooding.
  • Manholes are provided at regular intervals for inspection of sewage pipe-work systems. These sewage systems are often provided near waterways. During flood conditions, flood water can access the sewage system via the manholes causing the water level to rise until the water and sewage spills out of the manhole. Also, flooding can cause a surcharge or overflow of the sewage system due to the access of flood water at other parts of the system, again causing the spillage of water and sewage from the manhole. Thus, sewage can be displaced from the system to the area surrounding the manhole and into neighbouring waterways. This event is undesirable because of the environmental and health hazards that it creates.
  • an apparatus for flood protection of a manhole comprising: a substantially vertical pipe slidably mounted for vertical movement within the casing of a manhole; at least one seal adapted to seal between the pipe and the casing; wherein the pipe has at least one buoyant portion such that the pipe rises vertically as the buoyant portion rises.
  • pipe is to be interpreted as any tubular member.
  • the apparatus includes a first buoyant portion within the casing, the first buoyant portion being adapted to cause said pipe to rise with the level of rising water within said casing. Water can rise in the casing under surcharge conditions, and under such conditions the pipe will rise so that rising water is prevented from reaching the upper end of the pipe.
  • the first buoyant portion comprises an annular ring provided around the pipe.
  • the annular ring is located proximal to the lower end of the pipe and is adapted to rise with the level of water within the casing.
  • the pipe may be double-skinned or may comprise two or more concentric pipes such that the space between each skin or concentric pipe provides the buoyant portion.
  • the space between each skin or concentric pipe may be filled with foam.
  • the apparatus in a second embodiment of the present invention, includes a second buoyant portion above the casing, the second buoyant portion being adapted to cause said pipe to rise with the level of rising flood water above said casing. Water can flow onto the ground in which manholes are positioned under flood conditions, and under such conditions the pipe will rise so that flood water is prevented from reaching the upper end of the pipe.
  • the second buoyant portion comprises an annular ring provided around the pipe.
  • the second buoyant portion is provided proximal to the upper end of the pipe and is adapted to rise with the level of water outside the casing.
  • the second buoyant portion is positioned within a channel formed in the ground when the pipe is in the lowered position.
  • one or more drainage passages are provided at the channel to drain water away from the or each buoyant member.
  • the apparatus includes both a first and second buoyant portion as described above.
  • the manhole casing includes a guide adapted for guiding the pipe in a substantially vertical direction.
  • the guide member comprises a sleeve that encloses the pipe.
  • the or each seal is provided between the pipe and the sleeve.
  • the or each seal is an O' ring type seal. The or each seal is adapted to allow vertical sliding of the pipe relative to the guide member.
  • a lateral support member is provided to support the pipe.
  • the lateral support member comprises one or more support arms extending from the sleeve to the casing wall.
  • a plurality of equally spaced support arms radiate from the sleeve to the casing wall.
  • an annular support ring may be provided around the outer circumference of the pipe, the support ring allowing vertical movement of the pipe relative to the support ring, and the support arms radiate from the support ring to the casing wall.
  • the length of one or more of the support arms is adjustable.
  • a cover is provided at the upper end of the pipe.
  • the apparatus is arranged such that the upper surface of the cover is substantially at ground level when the pipe is in the lowered position.
  • the upper end of the casing is above ground level and the cover is positioned at a height from the ground.
  • the or each annular ring is connected to the pipe by a securing band.
  • the or each annular ring is further connected to the pipe using fasteners, such as bolts and nuts.
  • the annular ring is bonded to the pipe.
  • the annular ring is moulded integral with the pipe.
  • the outer vertical edge of one or more annular rings is tapered.
  • a guard ring may enclose one or more of the annular rings.
  • At least one end stop is provided on the pipe to limit the vertical travel of the pipe.
  • the end stop may be provided by the first buoyant portion.
  • at least one end stop may be provided on the guide member.
  • an annular support ring is provided at the internal diameter of the pipe.
  • a -adder is connected to the support ring.
  • the ladder is fixedly attached to the base of the manhole.
  • the pipe is adapted to slide relative to the support ring.
  • the lower end of the pipe is located at a predetermined distance from the base of the manhole when the pipe is in the lowered position. Preferably this distance is greater than one metre.
  • FIG. 1 is a sectional side view of the apparatus according to the third embodiment of the present invention as described above;
  • Fig. 2 is a sectional perspective view of the pipe and ladder of the apparatus of Fig. 1;
  • Fig. 3 is a plan view of the pipe and ladder of the apparatus of Fig. 1;
  • Fig. 4 is a sectional side view of a modification to the apparatus of Fig. 1.
  • Fig. 1 shows an embodiment of the apparatus 10 for flood protection of manholes.
  • the manhole comprises a concrete casing 20 provided in the ground 22 and connected to the pipe-work 24 of a sewage system.
  • the manhole provides access for personnel to inspect the sewage system.
  • a manhole lid 26 covers the manhole.
  • the apparatus 10 comprises a vertical pipe 30 within the manhole casing 20 and depending from the uppermost portion of the manhole. Connected near to the base and the top of the pipe 30 are buoyant portions in the form of annular rings or first and second collars 40, 42. It should be appreciated that the apparatus 10 can operate if only one of the collars 40, 42 is present.
  • the first and second collars 40, 42 are connected to the pipe 30 using conventional fasteners 44, such as nuts and bolts or screws.
  • the second collar 42 is screwed or clamped to the pipe 30 for ease of assembly. Other means of fastening the collars 40, 42 are possible such as bonding the collars to the pipe 30, or the collars 40, 42 may be moulded integral with the pipe 30.
  • the second collar 42 is screwed to the pipe 30.
  • a flange 46 is provided on the first collar 40 for bolting to the pipe 30.
  • the first collar 40 is also connected to the pipe 30 using a securing band 48.
  • a guide member or sleeve 50 is fixed to the casing 20.
  • the pipe 30 is positioned within this sleeve 50 and two seals in the form of ⁇ 0' ring type seals 52 are provided between the sleeve 50 and pipe 30.
  • the seals 52 are adapted to allow vertical sliding of the pipe 30 relative to the sleeve 50. It is to be understood that other forms of seals may be used.
  • a mastic type seal (not shown) is also provided between the sleeve 50 and casing 20.
  • a lateral support member 56 is fixed to the sleeve 50 and the casing wall.
  • the support member 56 comprises a number of support arms 58 that radiate from the sleeve 50 to the casing wall.
  • the support member 56 braces the pipe 30 and inhibits lateral movement of the pipe 30 when the pipe 30 is in the raised condition and flowing water acts upon the pipe 30.
  • the length of each support arm 58 is adjustable.
  • the first collar 40 also performs the function of an end stop. When the pipe 30 has been sufficiently raised, the first collar 40 will contact the sleeve 50 and prevent further raising of the pipe 30.
  • the second collar 42 is positioned in a channel 54 provided in the ground.
  • a drainage passage 60 is provided in the casing 20, with a first end provided at the channel 54. This allows water that accumulates in the channel 54 to be drained away during normal conditions. Therefore, the apparatus remains in a lowered position with the manhole lid at ground level during normal conditions.
  • the casing 20 may have an upper end that is at some height from ground level.
  • a non-return valve (not shown) may be provided at one of the ends of the drainage passage 60 so that ground water may not travel up the drainage passage 60 and into the channel 54.
  • a groove portion 62 is provided at the second collar 42 to accommodate the manhole lid 26.
  • the casing 20 is provided with the groove portion to accommodate the manhole lid.
  • the groove portion of the casing 20 is taken up by a flange provided on the sleeve 50. It is therefore relatively straightforward to fit the present apparatus 10 to existing manholes.
  • the outer vertical surface of the second collar 42 is tapered to avoid the second collar 42 being trapped by earth that may become hard packed.
  • a guard ring (not shown) may be provided around the annular ring to prevent the accumulation of earth around the second collar 42.
  • annular support ring 70 Within the internal diameter of the pipe 30 is an annular support ring 70. Attached to the support ring 70 is a ladder 72 to allow access for personnel to the base of the manhole.
  • the ladder 72 extends to the base of the manhole where it is firmly supported, such as by grouting.
  • the support ring 70 is attached to the pipe 30 such that the pipe 30 may slide relative to the support ring 70. Bearings (not shown) may be provided between the pipe 30 and support ring 70.
  • the lateral support member 56 provides lateral support when personnel are climbing up or down the ladder 72.
  • the support ring 70 and ladder -72 are shown more clearly in Figs. 2 and 3.
  • the pipe 30 terminates at a distance from the base of the manhole. This distance is typically greater than one metre to allow freedom of movement for personnel at the base of the manhole.
  • Fig. 4 shows a modification to the third embodiment of the present apparatus 10, with this view being normal to the longitudinal axis of the sewage pipe 24. Only the second of the collars 42 is provided.
  • the pipe 30 is double-skinned, or may be formed from two concentric pipes, and the first buoyant portion is provided by the annular space 36 between the two skins 32, 34. The lower end of the skins 32, 34 is sealed to prevent the ingress of water. Foam may be provided in the annular space 36.
  • the pipe 30 is provided with end stops 80 to limit the vertical travel of the pipe 30.
  • Fig. 4 shows the sleeve 50 as having a greater length to offer increased support to the pipe 30 in the raised position. Therefore, in this embodiment, the lateral support member 56 is omiited.
  • the apparatus In use, the apparatus is in the lowered position during normal conditions, as shown in the accompanying figures.
  • the water level 90 in the sewage system is typically lower than that of the first collar 40. During flood conditions, the level of water (and sewage) 90 can rise due to an accumulation of water from another part of the sewage system.
  • the pipe 30 will also rise until the upper end is above ground level.
  • the water level 90 reaches the top of the casing 20, it can only travel further via the pipe 30, due to the presence of the seals 52.
  • the water will be contained within the pipe until and unless the water level 90 exceeds the maximum height of the pipe 30 above ground level.
  • flood water may be present on the surface of the ground. The presence of water above the second collar 42 will produce an upwards force on the second collar 42 due to its buoyancy and the second collar 42 will rise. Therefore, the pipe 30 will also rise. Flood water may flow into the channel 54 but cannot enter the casing 20 due to the presence of the seals 52.
  • the second collar 42 maintains the upper end of the pipe 30 above the level of the flood water until the maximum travel of the pipe 30 has been reached.
  • the second collar 42 also provides stability for the pipe when floating in flood water which may be flowing due the action of tides, sloping terrain and so on.
  • first or second collars 40, 42 may be provided or the concentric pipes 32, 34 having an annular space 36 between the pipes may be provided with or without the collars.
  • the buoyant portions may be in any suitable form to provide the buoyancy required.
  • the support ring 70 and ladder 72 may not be provided and a temporary ladder used when access is required.
  • the pipe 30 may be provided with hand and foot holds to allow access to the base of the manhole.

Landscapes

  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Paleontology (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Devices For Use In Laboratory Experiments (AREA)
  • Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
  • Sewage (AREA)

Abstract

La présente invention concerne un dispositif de protection contre une inondation dans un trou d'homme (10) qui comprend un tuyau vertical monté coulissant de façon que ce dernier puisse se déplacer verticalement à l'intérieur du tubage d'un trou d'homme (20) et un joint conçu pour assurer une étanchéité entre le tuyau et le tubage. Le tuyau possède au moins une partie flottante (40, 42) de façon que ce tuyau monte verticalement lorsque cette partie flottante (40, 42) monte.
PCT/GB2003/003547 2002-08-21 2003-08-13 Dispositif de protection contre les inondations dans des trous d'homme et couvercles d'acces Ceased WO2004018787A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB0501226A GB2407113B (en) 2002-08-21 2003-08-13 Apparatus for flood protection of manholes and access covers
AU2003251065A AU2003251065A1 (en) 2002-08-21 2003-08-13 Apparatus for flood protection of manholes and access covers

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB0219469.4A GB0219469D0 (en) 2002-08-21 2002-08-21 Apparatus for flood protection of manholes and access covers
GB0219469.4 2002-08-21

Publications (1)

Publication Number Publication Date
WO2004018787A1 true WO2004018787A1 (fr) 2004-03-04

Family

ID=9942715

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2003/003547 Ceased WO2004018787A1 (fr) 2002-08-21 2003-08-13 Dispositif de protection contre les inondations dans des trous d'homme et couvercles d'acces

Country Status (3)

Country Link
AU (1) AU2003251065A1 (fr)
GB (2) GB0219469D0 (fr)
WO (1) WO2004018787A1 (fr)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2440535A (en) * 2006-08-04 2008-02-06 Meiklewall Scotland Ltd Barrier apparatus for use with a manhole
EP2096252A1 (fr) * 2008-02-28 2009-09-02 Wavin B.V. Système pour supporter une échelle
JP2015200089A (ja) * 2014-04-07 2015-11-12 日本ステップ工業株式会社 マンホール浮上防止装置
KR101584361B1 (ko) 2015-06-12 2016-01-13 주식회사 탑이엔씨 지하공동구의 안전 유지관리용 환기 시설
US9416516B2 (en) 2014-08-22 2016-08-16 Neenah Foundry Company Pressure responsive locking latch arrangement for manhole covers
WO2016195878A1 (fr) * 2015-06-05 2016-12-08 Novinium, Inc. Système de ventilation pour voûte de trou d'homme
US10684031B2 (en) 2016-03-31 2020-06-16 Novinium, Inc. Smart system for manhole event suppression system
US10962253B2 (en) 2015-06-05 2021-03-30 Novinium, Inc. Systems for circulating air inside a manhole vault
US11761165B1 (en) 2023-02-27 2023-09-19 David M. Stadler Manhole cover

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1457637A (en) * 1922-09-11 1923-06-05 William O Sievers Device for conducting surface water to drain tiles
GB224959A (en) * 1923-08-22 1924-11-24 Joseph Walter Lowe Vent shafting to prevent overflow from sewers coming up the drains
US2478976A (en) * 1947-05-22 1949-08-16 Modlin Chester Backwater controlling device
US2912111A (en) * 1955-02-15 1959-11-10 Sewer O Matic Inc Automatic extensible standpipe
US3294000A (en) * 1964-03-30 1966-12-27 Thurman A Pelsue Manhole extension

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1457637A (en) * 1922-09-11 1923-06-05 William O Sievers Device for conducting surface water to drain tiles
GB224959A (en) * 1923-08-22 1924-11-24 Joseph Walter Lowe Vent shafting to prevent overflow from sewers coming up the drains
US2478976A (en) * 1947-05-22 1949-08-16 Modlin Chester Backwater controlling device
US2912111A (en) * 1955-02-15 1959-11-10 Sewer O Matic Inc Automatic extensible standpipe
US3294000A (en) * 1964-03-30 1966-12-27 Thurman A Pelsue Manhole extension

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2440535A (en) * 2006-08-04 2008-02-06 Meiklewall Scotland Ltd Barrier apparatus for use with a manhole
GB2440535B (en) * 2006-08-04 2011-08-10 Meiklewall Scotland Ltd Sewage surge prevention system
EP2096252A1 (fr) * 2008-02-28 2009-09-02 Wavin B.V. Système pour supporter une échelle
WO2009108042A1 (fr) * 2008-02-28 2009-09-03 Wavin B.V. Dispositif pour soutenir une échelle
EA016942B1 (ru) * 2008-02-28 2012-08-30 Вавин Б.В. Устройство для крепления лестницы
JP2015200089A (ja) * 2014-04-07 2015-11-12 日本ステップ工業株式会社 マンホール浮上防止装置
US9863115B2 (en) 2014-08-22 2018-01-09 Neenah Foundry Company Controlled pressure release manhole cover assembly
US9416516B2 (en) 2014-08-22 2016-08-16 Neenah Foundry Company Pressure responsive locking latch arrangement for manhole covers
WO2016195878A1 (fr) * 2015-06-05 2016-12-08 Novinium, Inc. Système de ventilation pour voûte de trou d'homme
CN107709196A (zh) * 2015-06-05 2018-02-16 诺维纽姆有限责任公司 用于检查井地下室的通风系统
US10962253B2 (en) 2015-06-05 2021-03-30 Novinium, Inc. Systems for circulating air inside a manhole vault
US11060754B2 (en) 2015-06-05 2021-07-13 Novinium, Inc. Ventilation system for manhole vault
US11561023B2 (en) 2015-06-05 2023-01-24 Novinium, Llc Ventilation system for manhole vault
KR101584361B1 (ko) 2015-06-12 2016-01-13 주식회사 탑이엔씨 지하공동구의 안전 유지관리용 환기 시설
US10684031B2 (en) 2016-03-31 2020-06-16 Novinium, Inc. Smart system for manhole event suppression system
US11346566B2 (en) 2016-03-31 2022-05-31 Novinium, Inc. Smart system for manhole event suppression system
US12173913B2 (en) 2016-03-31 2024-12-24 Novinium, Llc Smart system for manhole event suppression system
US11761165B1 (en) 2023-02-27 2023-09-19 David M. Stadler Manhole cover

Also Published As

Publication number Publication date
GB0501226D0 (en) 2005-03-02
GB2407113B (en) 2005-12-07
GB0219469D0 (en) 2002-10-02
GB2407113A (en) 2005-04-20
AU2003251065A1 (en) 2004-03-11
AU2003251065A8 (en) 2004-03-11

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