EP0887479A1 - Vorgefertigter Schacht zum Anschluss und Inspektion von Abwasserkanälen, und Verfahren zur Installation eines solchen Schachts - Google Patents

Vorgefertigter Schacht zum Anschluss und Inspektion von Abwasserkanälen, und Verfahren zur Installation eines solchen Schachts Download PDF

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Publication number
EP0887479A1
EP0887479A1 EP98401406A EP98401406A EP0887479A1 EP 0887479 A1 EP0887479 A1 EP 0887479A1 EP 98401406 A EP98401406 A EP 98401406A EP 98401406 A EP98401406 A EP 98401406A EP 0887479 A1 EP0887479 A1 EP 0887479A1
Authority
EP
European Patent Office
Prior art keywords
manhole
fact
look
tab
cunette
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.)
Withdrawn
Application number
EP98401406A
Other languages
English (en)
French (fr)
Inventor
Michel Durand
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.)
Alphacan SAS
Original Assignee
Alphacan SAS
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 Alphacan SAS filed Critical Alphacan SAS
Publication of EP0887479A1 publication Critical patent/EP0887479A1/de
Withdrawn legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03F—SEWERS; CESSPOOLS
    • E03F5/00—Sewerage structures
    • E03F5/02—Manhole shafts or other inspection chambers; Snow-filling openings; accessories
    • E03F5/024—Manhole shafts or other inspection chambers; Snow-filling openings; accessories made of plastic material
    • 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
    • E02D29/124—Shaft entirely made of synthetic material
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03F—SEWERS; CESSPOOLS
    • E03F5/00—Sewerage structures
    • E03F5/02—Manhole shafts or other inspection chambers; Snow-filling openings; accessories
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03F—SEWERS; CESSPOOLS
    • E03F5/00—Sewerage structures
    • E03F5/02—Manhole shafts or other inspection chambers; Snow-filling openings; accessories
    • E03F5/021—Connection of sewer pipes to manhole shaft

Definitions

  • the invention relates to a prefabricated manhole for connection and / or inspection of pipes sanitation system, comprising a hollow body intended to be installed with its axis substantially vertical, this hollow body being open at its upper end and comprising in the lower part means for connection to sanitation pipes, with a drain turning its convexity downwards and connecting towards the top to the body shell on each side by a bench.
  • a cunette is a kind of substantially semi-cylindrical channel.
  • the push Archimedes (equal to the weight of the volume of water displaced) exerts a vertical thrust directed from bottom to top, acting in particular on the benches.
  • the object of the invention is, above all, to provide a plastic prefabricated manhole for the connection and / or inspection of pipes sanitation, of the kind defined above, which does not has more, or to a lesser degree, disadvantages mentioned above.
  • a prefabricated look in plastic material for connection and / or inspection of sewerage pipes is characterized by the fact that it comprises, outside the body, at least on one side of the cunette, at least one sealing tab located under a bench.
  • the look comprises on both sides of the cunette at least one sealing tab located under a bench.
  • each sealing tab constitutes a foot on which the gaze rests when is placed in a vertical station on a surface horizontal.
  • the sealing tab (s) Thanks to the sealing tab (s), the look can be anchored in the ground and push of Archimedes, if any, is compensated so that the deformations of the seat (s) are reduced, even deleted, and that the connections of the gaze with the sewage pipes no longer undergo, or at a lesser degree of constraints which may lead to ruptures.
  • the sealing lugs when at least one leg of sealing is provided on either side of the cunette, the sealing lugs have a height such that the look leans on the sealing lugs, in station vertical on a horizontal surface.
  • each sealing tab is crossed by an opening, favoring anchoring in the sealing.
  • each leg is lying outside in the radial direction is located substantially in line with the surface cylindrical body shell.
  • Each leg is preferably delimited by two substantially planar faces orthogonal to the axis geometrical of the cunette, and separated by a distance corresponding to the overall thickness of each leg.
  • the outline of a leg, seen in elevation vertical, is substantially trapezoidal with the small base located in the lower part.
  • the outline of the opening in the leg is substantially parallel to the outer contour of the tab, and the large base of the opening is located substantially at the level of the bench.
  • Each leg can be hollow when viewed from the inside the look.
  • the look generally has a shape cylindrical, with at its upper end a section of smaller diameter, this section possibly be cut to the desired length; the look includes advantageously, at the level of the transition zone between a main part of the body and the upper section, at least two ears forming ribs of stiffening, the vertical mean plane of which passes through the axis of the gaze, each ear being crossed by a hole and forming a gaze manipulation ring.
  • the body may be in one piece and include a main part with joint lines respectively with the base of the upper section and the bottom of the manhole, and if necessary a joint line intermediate, and the height of the section portion can be cut is substantially equal to the height between the joint lines on the main part of the body.
  • the means of connection to the pipes are preferably formed by end caps having zones of different diameters, corresponding to different pipe diameters, unused tips can be cut; the outer wall of the end caps is slightly tapered, the diameter decreasing when moves away from the gaze, the tilt of the generators on the geometrical axis of the nozzle being in particular between 2 ° and 4 °.
  • the look can include at least one stitching built above a bench, for connection possible new pipes.
  • the invention also relates to a method setting up a look as defined above, this process being characterized by the fact that the gaze rests on the bottom of an excavation; that the look tab (s) is (are) sealed, in particular by pouring concrete before the excavation is filled; that the pipes are connected to the end pieces of the look; and then the excavation is filled, in especially with soil.
  • the gaze comprises on either side of the cunette at least one sealing tab constituting one foot, the gaze is resting on its legs sealing.
  • Figure 1 of these drawings is a view in vertical elevation, with part torn off, at a glance prefabricated according to the invention.
  • Figure 2 is a vertical elevation view of the look set up in the ground.
  • Figure 3 is an elevational view of a alternative embodiment of the gaze according to the invention with part cut.
  • Figure 4 finally, is a top view by compared to Figure 3.
  • Look R illustrated in Figures 1 and 2 comprises a hollow body 1, of generally cylindrical shape, with zones of different diameter.
  • This body hollow is intended to be installed with its axis A-A substantially vertical and to define in the ground a well access to sanitation pipes.
  • the body 1 is made of plastic, by example by rotational molding. Any plastic material that can being rotomolded can be used. However, for make look R, we basically use high density polyethylene, preferably loaded in black carbon to protect it from ultraviolet radiation during storage.
  • the hollow body 1 is provided, at the bottom, with means of connection J to the pipes sanitation.
  • These means J include end pieces 2, radially projecting, in one piece with the body 1.
  • Each end piece 2 is provided to allow a connection with pipes of different diameters and includes, for this, zones 3, 4, 5 stepped, the diameter becomes smaller and smaller as you move away radially from the axis of the gaze.
  • These end zones 3, 4, 5 are offset so that they admit the same lower horizontal tangent plane T (Fig. 1). If one or several small diameter areas of the nozzle are not used, they are cut. For example, if tip 2 is connected to a pipe whose diameter interior corresponds to zone 3 of larger diameter, zones 4 and 5 of the nozzle are cut at the connection of zone 4 with zone 3. We thus avoid a constriction of the passage section.
  • the outer surfaces of the zones 3, 4 and 5 of the nozzle 2 are slightly conical with a decreasing diameter when moving away radially from the axis of the gaze.
  • the inclination of generating zones 3, 4 and 5 of the nozzle 2, on the axis geometric of the area considered, is advantageously between 2 ° and 4 °.
  • two tips 2 diametrically opposed and aligned are provided in part low of look R. They are connected by a channel 6, or cunette, forming an integral part of the body 1 and constituting a closed bottom of this body.
  • Pit 6 is delimited by a substantially semi-cylindrical wall turning its convexity downwards and connecting, towards the top, to the body envelope 1 on each side by a bench seat 7.
  • Each bench seat 7 is constituted by a practically flat, substantially horizontal wall. The Cunette 6, protruding downward under the gaze, ensures good water flow.
  • the sight R comprises, outside the body 1, two sealing tabs 8, in the lower part, located on either side of the cunette 6, under a bench seat 7.
  • a tab 8 is provided on each side of the cunette 6; however, one could only provide one leg 8, on one side of the cunette 6, under a bench seat 7.
  • the legs 8 constitute feet on which the gaze R rests placed in a vertical station on a horizontal surface .
  • the legs 8 are preferably diametrically opposite.
  • the legs 8 have a common median plane passing through the axis AA of the body 1, and orthogonal to the geometric axis of the cunette 6.
  • the legs 8 are delimited by two faces 9 (Fig.
  • each tab 8 is crossed by at least one opening 10, in a direction perpendicular to its mean plane.
  • the outline of the opening 10 is substantially parallel to the outside outline of the tab, and the large base of the opening 10, as visible in FIG. 1, is located substantially at the level of the bench seat 7.
  • the openings 10 favor the anchoring the legs 8 in a seal.
  • the wall 11, of each tab 8, located outside in the radial direction is located inside the cylindrical envelope surface of the body 1, or substantially in the extension of this envelope surface.
  • the oblique wall 12, limiting the tab 8 inwards in the radial direction, is spaced from the cuneo 6 to end up, at the top, at the level of the bench seat 7.
  • the legs 8 have a sufficient height so that their lower extremity is in the plane T horizontal tangent below the cunette 6 and end caps 2, or protrude slightly beyond this plan. So when the gaze is stationary vertical on a horizontal surface, it rests on the legs 8 which give it good stability and where appropriate also pressing on the cunette 6. The legs 8 facilitate the installation and storage of the gaze.
  • the arrangement of the legs 8, in such a way that they also serve to stabilize the gaze in position vertical at the time of installation, is particularly advantageous.
  • the manufacture of the R manhole by rotational molding leads to legs 8 which are hollow when viewed from inside the eyes. After the rotational molding operation, the legs 8 are either filled with a material plastic until it is flush with the surface of the bench seat 7 or closed by gluing a plate connecting to the bench seat 7.
  • the body 1 comprises a main part 13 of large diameter extending from the bottom upwards, connected at its upper end to a section 14 of smaller diameter.
  • This section 14 is cut to the desired length, as shown in Figure 2, of so that its upper end after cutting is slightly below the soil surface S. this allows the installation of a cast iron shutter pad (not represented).
  • the section 14 includes peripheral grooves 15 spaced along the direction vertical, to facilitate cutting.
  • the medium plan vertical of these ears 16 passes through the axis of the gaze and, preferably is confused with the mean plane of the legs 8.
  • Each ear 16 is crossed by a hole 17 facilitating the manipulation of the gaze R.
  • the ears 16 form manipulation rings and have a double role: on the one hand, allow to lift and place the look; on the other hand, create a lateral reinforcement of the look.
  • the outer contour of the ears 16 does not overflow not of the envelope surface of the main part 13 of the body 1, which has peripheral rings 18 capable of increasing its lateral resistance.
  • the radially outer walls 11 of the lugs 8 are extended upwardly in the form of prismatic lateral projection 20 with the same overall thickness e that the legs 8, and connected to the large diameter base of the part 13.
  • the outer wall in the radial direction of the projections 20 may include a hollow area 21 creating stiffening edges.
  • Figures 3 and 4 show a variant of realization of look R according to which at least one additional stitching 22, carried out above the bench seat 7, is provided for a possible connection of new pipes.
  • the tapping axis 22 is inclined towards the back of the manhole to ensure the flow.
  • a optional additional nozzle 2a has been shown in mixed line, in a different orientation from that 2.
  • the other parts of the R look of the Figures 3 and 4 similar or identical to parts already described in connection with Figures 1 and 2 are designated by the same reference numbers without their description either resumed.
  • the height E of the part of section 14 capable of being cut is substantially equal to the difference in maximum heights between two successive sizes of manholes R. It is thus possible practically ensuring a continuity of heights look available. For example, for a depth sewerage slightly higher than the maximum height of the lower size, we will use the next larger size we cut out the section 14 slightly above its base.
  • the mold used for the manufacture of these different manhole sizes advantageously includes two end parts, always present, corresponding respectively to section 14 and to the base 19 with legs 8, and separable elements intermediaries to vary the height of part 13 of the body 1.
  • a medium size model is obtained with the presence of the third mold element, without the second.
  • the highest size (Fig. 1 and 2) is obtained with the presence of the third and second element of mold.
  • the heights E, E1, E2 can be substantially equal, allowing practically continuous variation possible heights for the different models of gaze, playing on the absence or presence of elements of height E1 and E2, and on the cut length of section 14.
  • the three values of the total height H of the different sizes are respectively about 200 cm, 160 cm, and 120 cm.
  • the look instead of being one piece, could be done in several parts, for example three parts, connected together by any system appropriate seals.
  • the gaze may include several inlet and outlet nozzles 2.
  • the tips input and output are not necessarily aligned; for example the angle between an inlet and an outlet can be 135 °, which corresponds to the line end mixed 2a of Figure 4 combined with the tip 2 located at right of this Figure.
  • look R is placed on an erect horizontal surface, such as a concrete slab 23, made at the bottom of an excavation intercepting sewerage pipes at connect.
  • the C lines are then connected to the end pieces 2 of the manhole by any type of junction, by example by welding or by joints.
  • Concrete is then poured so as to form a or block 24 for sealing legs 8. Concrete fits into legs 8 through openings 10, which ensures effective anchoring.
  • the excavation is then filled with an embankment material, in particular of Earth.
  • the upper section 14 is cut a little below of the ground surface S and the upper part 25 is eliminated.
  • a cast iron shutter pad (not shown) is then placed on the manhole.
  • the plastic look R according to the invention is particularly suitable for implantation in the groundwater. Archimedes' push exerted by the water table on the manhole R is compensated by anchoring in the ground provided by the legs of sealing 8, so that the constraints are canceled, or at least considerably reduced, at the level of the connection between the end pieces 2 and the pipes C.
  • the legs 8 therefore fill a triple function: eye retention, limitation of deformation of each bench seat 7, and positioning vertical look.
  • the installation of the gaze is simple and quick, in particular thanks to the handling rings 16.
  • the cutting height is adjusted on site, which allows immediate adaptation to the depth of pose. The look can therefore be quickly adapted to many special cases.

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Public Health (AREA)
  • Water Supply & Treatment (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Paleontology (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
EP98401406A 1997-06-24 1998-06-11 Vorgefertigter Schacht zum Anschluss und Inspektion von Abwasserkanälen, und Verfahren zur Installation eines solchen Schachts Withdrawn EP0887479A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9707822 1997-06-24
FR9707822A FR2764915B1 (fr) 1997-06-24 1997-06-24 Regard prefabrique pour le raccordement et/ou la visite de canalisations d'assainissement, et procede de mise en place d'un tel regard

Publications (1)

Publication Number Publication Date
EP0887479A1 true EP0887479A1 (de) 1998-12-30

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP98401406A Withdrawn EP0887479A1 (de) 1997-06-24 1998-06-11 Vorgefertigter Schacht zum Anschluss und Inspektion von Abwasserkanälen, und Verfahren zur Installation eines solchen Schachts

Country Status (4)

Country Link
EP (1) EP0887479A1 (de)
FR (1) FR2764915B1 (de)
NO (1) NO982922L (de)
PL (1) PL327004A1 (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004053056B3 (de) * 2004-11-03 2006-05-11 Hammes, Horst Abwasser-Sammelschacht
ES2318962A1 (es) * 2006-05-23 2009-05-01 Javier San Martin Perez Pozo de registro.
FR2941245A1 (fr) * 2009-01-22 2010-07-23 Mgc Concept Sarl Dispositif de regard destine a etre enterre, notamment pour compteur d'eau.

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1524292A (fr) * 1967-03-29 1968-05-10 Regards et leur couvercle, prêts à l'emploi, pour le bâtiment et les travaux publics, et leur gabarit de pose
GB1139956A (en) * 1965-12-01 1969-01-15 Kamphuis Bouwmaterialen Nv Inspection sink for a sewage system
FR2509343A1 (fr) * 1981-07-10 1983-01-14 Seperef Regard de visite pour canalisations d'assainissement
US4742585A (en) * 1987-05-01 1988-05-10 Logsdon Duane D Tub box
NL9001480A (nl) * 1990-06-28 1992-01-16 Wavin Bv Kunststofput met positioneermiddelen.
GB2264310A (en) * 1992-02-24 1993-08-25 Wavin Bv Sealed riser extension for access junction assembly
DE4315535A1 (de) * 1993-05-10 1994-11-17 Kordes Klaeranlagen U Pumpwerk Kunststoff-Schacht
DE9420219U1 (de) * 1994-12-20 1995-02-02 Jung Pumpen GmbH & Co, 33803 Steinhagen Abwassersammelschacht aus Kunststoff

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1139956A (en) * 1965-12-01 1969-01-15 Kamphuis Bouwmaterialen Nv Inspection sink for a sewage system
FR1524292A (fr) * 1967-03-29 1968-05-10 Regards et leur couvercle, prêts à l'emploi, pour le bâtiment et les travaux publics, et leur gabarit de pose
FR2509343A1 (fr) * 1981-07-10 1983-01-14 Seperef Regard de visite pour canalisations d'assainissement
US4742585A (en) * 1987-05-01 1988-05-10 Logsdon Duane D Tub box
NL9001480A (nl) * 1990-06-28 1992-01-16 Wavin Bv Kunststofput met positioneermiddelen.
GB2264310A (en) * 1992-02-24 1993-08-25 Wavin Bv Sealed riser extension for access junction assembly
DE4315535A1 (de) * 1993-05-10 1994-11-17 Kordes Klaeranlagen U Pumpwerk Kunststoff-Schacht
DE9420219U1 (de) * 1994-12-20 1995-02-02 Jung Pumpen GmbH & Co, 33803 Steinhagen Abwassersammelschacht aus Kunststoff

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004053056B3 (de) * 2004-11-03 2006-05-11 Hammes, Horst Abwasser-Sammelschacht
ES2318962A1 (es) * 2006-05-23 2009-05-01 Javier San Martin Perez Pozo de registro.
FR2941245A1 (fr) * 2009-01-22 2010-07-23 Mgc Concept Sarl Dispositif de regard destine a etre enterre, notamment pour compteur d'eau.

Also Published As

Publication number Publication date
NO982922D0 (no) 1998-06-23
NO982922L (no) 1998-12-28
FR2764915A1 (fr) 1998-12-24
FR2764915B1 (fr) 1999-07-16
PL327004A1 (en) 1999-01-04

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