CA2212401C - Adjustable sewer inlet section - Google Patents
Adjustable sewer inlet section Download PDFInfo
- Publication number
- CA2212401C CA2212401C CA 2212401 CA2212401A CA2212401C CA 2212401 C CA2212401 C CA 2212401C CA 2212401 CA2212401 CA 2212401 CA 2212401 A CA2212401 A CA 2212401A CA 2212401 C CA2212401 C CA 2212401C
- Authority
- CA
- Canada
- Prior art keywords
- receiving member
- inlet section
- sewer inlet
- hollow member
- end portion
- 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
Links
- 239000000463 material Substances 0.000 claims abstract description 16
- 239000002352 surface water Substances 0.000 claims abstract description 16
- 230000006835 compression Effects 0.000 claims description 2
- 238000007906 compression Methods 0.000 claims description 2
- 230000004888 barrier function Effects 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 238000005056 compaction Methods 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 239000010426 asphalt Substances 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 230000002028 premature Effects 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
-
- 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
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)
- Road Paving Structures (AREA)
Abstract
An adjustable sewer inlet section for collecting and directing surface water to an underground conduit of a sewer. The inlet section comprises an eccentric hollow member adapted to be adjustably rotated on the top of the underground conduit to adjust the position of a surface water receiving member relative to a reference line, even though the underground conduit has been misplaced. A non-rigid connector is provided for connecting the receiving member in flow communication with the underground conduit, while allowing relative movement of the receiving member with respect to the underground conduit. The receiving member is provided with an inwardly directed bottom wall adapted to ensure proper distribution of loads from the receiving member to the underlying ground material.An adjustable sewer inlet section for collecting and directing surface water to an underground conduit of a sewer. The inlet section understood an eccentric hollow member adapted to be adjustably rotated on the top of the underground conduit to adjust the position of a surface water receiving member relative to a reference line, even though the underground conduit has been misplaced. A non-rigid connector is provided for connecting the receiving member in flow communication with the underground conduit, while allowing relative movement of the receiving member with respect to the underground conduit. The receiving member is provided with an inwardly directed bottom wall adapted to ensure proper distribution of loads from the receiving member to the underlying ground material.
Description
BACKGROUND OF INVENTION
1. Field of Invention The present invention is directed to sewers and, more particularly, to an adjustable sewer inlet section for collecting and directing surface water drainage into a subterranean conduit.
1. Field of Invention The present invention is directed to sewers and, more particularly, to an adjustable sewer inlet section for collecting and directing surface water drainage into a subterranean conduit.
2. Description of the Prior Art It is well known that most streets have openings which give acc:ess to vertical concrete cylinders leading to public services, namely, aqueduct, energy and communications systems. While standards requ:ire the street draining well to be at a certain distance from the curb or the sidewalk, it is often difficult to locate the base of the street draining well so as to respect that distance.
Since all the components of a conventional street draining well syst:em are stacked and do not allow for adjustments in position, it becomes impossible to obtain the required distance between the center of the grate and the sidewalk if the base is not positioned properly. In order to compensate for the bad positioning of the base, the upper components of the street draining well system will often be misaligned with respect to the base. This misalignment, in turn, will allow sewage water to infiltrate the street draining well system between the frame and the head, causing a premature erosion of the infrastructure supporting the roadway. The roadway surrounding the ~~treet draining well system then collapses, making the system both less efficient and dangerous. Furthermore, the infiltrated water freezes in the winter, causing an expansion of the ground surrounding the street draining well, and accelerating the degradation of its concrete components.
A depression in the roadway can frequently be seen around a street: draining well. Asphalt roadways are almost wate_~tight. Therefore, if the joint between the street draining well and the road is watertight, the infrastructure should stay dry.
Due to design flaws of conventional systems, in time, cracks begin to appear in the road and water infiltrates the infrastructure under the road, which then collapses around the street draining well. The deterioration of the road is also caused by traffic and by the inadequate compaction of the infrastructure surroundinc~ the street draining well at the time of installation. In the case of existing street draining wells, the frame is fixed on a non-compressible base, that is set on stable ground and no damping elements are u:>ed between the base and the rigid frame. With conventional street draining wells, we cannot compact the infrastructure without going around the sections of the street draining well. It is difficult, ~=_ven impossible, to compact the infrastructure uniforrnly so that it stays stable with time. In time, the road collapses around the grate, which stays in pla~~e because it is fixed to a solid base.
Existing patent; do not in any way resolve simply and efficiently the following frequently-encountered problems when installing street draining wells: unequal and deficient compaction of the infrastructure around tlze street draining well, incorrect inclination and alignment of the components of the street draining well with respect to the roadway, damages to the road and concrete components, and non-conformity with public service requirements.
Canadian patent 1,068,961, discloses a sewer structure with threaded rods for adjusting the height and angle of a grate. Tools are required to adjust the position of the grate.
United States patent 5,470,172 and Canadian patent 2,151,069 disclose a sewer structure allowing for the adjustment of the height of a frame. by adding a ring or multiple rings under the frame. A
wedge may be inserted under the ring to set the inclination of the frame.
United States patent 4,906,128 and Canadian patent 1,287,247 disclose a structure which allows for the adjustment of the height of a grate. This is accomplished with a rod which is jagged and fixed in place by a protuberance.
United States patent 5,360,131 discloses a structure having two rings with inwardly projecting rectangular protuberances of different heights to allow the grate to attain the required height and slope by rotating the upper ring relative to the lower ring.
United States patent 5,051,022 discloses a structure that has a frame with a fixed sloped surface requiring different models to fit the different inclinations of the road.
Canadian patent 1,270,138 discloses a manhole with a movable cover that cannot be adjusted either in height or in inclination once installed.
In conclusion, nome problems can only be partially solved by the aforementioned patents.
Since all the components of a conventional street draining well syst:em are stacked and do not allow for adjustments in position, it becomes impossible to obtain the required distance between the center of the grate and the sidewalk if the base is not positioned properly. In order to compensate for the bad positioning of the base, the upper components of the street draining well system will often be misaligned with respect to the base. This misalignment, in turn, will allow sewage water to infiltrate the street draining well system between the frame and the head, causing a premature erosion of the infrastructure supporting the roadway. The roadway surrounding the ~~treet draining well system then collapses, making the system both less efficient and dangerous. Furthermore, the infiltrated water freezes in the winter, causing an expansion of the ground surrounding the street draining well, and accelerating the degradation of its concrete components.
A depression in the roadway can frequently be seen around a street: draining well. Asphalt roadways are almost wate_~tight. Therefore, if the joint between the street draining well and the road is watertight, the infrastructure should stay dry.
Due to design flaws of conventional systems, in time, cracks begin to appear in the road and water infiltrates the infrastructure under the road, which then collapses around the street draining well. The deterioration of the road is also caused by traffic and by the inadequate compaction of the infrastructure surroundinc~ the street draining well at the time of installation. In the case of existing street draining wells, the frame is fixed on a non-compressible base, that is set on stable ground and no damping elements are u:>ed between the base and the rigid frame. With conventional street draining wells, we cannot compact the infrastructure without going around the sections of the street draining well. It is difficult, ~=_ven impossible, to compact the infrastructure uniforrnly so that it stays stable with time. In time, the road collapses around the grate, which stays in pla~~e because it is fixed to a solid base.
Existing patent; do not in any way resolve simply and efficiently the following frequently-encountered problems when installing street draining wells: unequal and deficient compaction of the infrastructure around tlze street draining well, incorrect inclination and alignment of the components of the street draining well with respect to the roadway, damages to the road and concrete components, and non-conformity with public service requirements.
Canadian patent 1,068,961, discloses a sewer structure with threaded rods for adjusting the height and angle of a grate. Tools are required to adjust the position of the grate.
United States patent 5,470,172 and Canadian patent 2,151,069 disclose a sewer structure allowing for the adjustment of the height of a frame. by adding a ring or multiple rings under the frame. A
wedge may be inserted under the ring to set the inclination of the frame.
United States patent 4,906,128 and Canadian patent 1,287,247 disclose a structure which allows for the adjustment of the height of a grate. This is accomplished with a rod which is jagged and fixed in place by a protuberance.
United States patent 5,360,131 discloses a structure having two rings with inwardly projecting rectangular protuberances of different heights to allow the grate to attain the required height and slope by rotating the upper ring relative to the lower ring.
United States patent 5,051,022 discloses a structure that has a frame with a fixed sloped surface requiring different models to fit the different inclinations of the road.
Canadian patent 1,270,138 discloses a manhole with a movable cover that cannot be adjusted either in height or in inclination once installed.
In conclusion, nome problems can only be partially solved by the aforementioned patents.
SUMMARY OF THE INVENTION
It is therefore an aim of the present invention to provide an adjustable sewer inlet section allowing for the adjustment of the lateral position of a receiving member with respect to a reference line.
It is a furt:her aim of the present invention to provide an adjustable sewer inlet section adapted to move conjointly with the surrounding infrastructure.
It is still a further aim of the present invention to provide an adjustable sewer inlet section which allows for uniform compaction of the surrounding backfill material.
Therefore, in a.ccordance with the present invention, there is provided an adjustable sewer inlet section for collecting and directing surface water drainage into a subterranean conduit, comprising a receiving me~mber defining at least one opening for receiving the surface water, and a hollow member having first and :second opposed end portions which are off-centered with respect to one another, said first end portion being adapted to be connected in flow communication wit:h the subterranean conduit while allowing said hollow member to be adjustably rotated with respect to said subterranean conduit wherein said second end portion displaces in an orbit-like fashion about <~n axis of rotation of laid hollow member, said receiving member being adapted to be connected in flow comrnunication with said second end portion of said receiving member and being adjustable with respect t~hereto, whereby inaccurate positioning of the subter:ranean conduit is corrected by rotating the hollow member to displace the second end portion thereof to an adjusted position, thereby enabling the receiving member connected to said hollow member to be prope~rly positioned with respect to a reference line.
In accordance w_Lth a further general aspect of the present invention, there is provided an adjustable sewer inlet ;section for collecting and directing surface water drainage into a subterranean conduit, comprising an tznfastened receiving member freely set in a ground material at an angle relative to the subterranean conduit so that an upper edge thereof is substantially flush with a slope of a ground surface, laid receiving member defining at least one inlet opening for receiving the surface water, and non-rigid connecting means for connecting said receiving member in flow communication with the subterranean conduit, whereby said receiving member can moue in at least one of an axial and a radial direction with respect to the subterranean conduit due to ground shifting.
In accordance w:ith a still further general aspect of the present invention there is provided an adjustable sewer inlet rection for collecting and directing surface water drainage into a subterranean conduit, comprising a receiving member embedded in a ground materia:l and defini.ng at least one opening for receiving the surface water, and non-rigid connecting means for connecting saic3 receiving member in flow communication with the subterranean conduit, said receiving member having a bottom wall adapted to direct collected surface water into the subterranean conduit and defining a pressure distribution surface adapted to transmit compression forces to backfill material located under sa=Ld receiving member, whereby the backfill material is uniformly compacted by applying downward loads on and about laid receiving member.
BRIEF DESCRIPTION OF THE DRAWINGS
Figure 1 shows an exploded perspective view of a sewer inlet section in accordante with a first embodiment of the present invention.
Figure 2 is a cross-sectional view of the sewer inlet section installed in different layers of the infrastructure of a rcad.
Figure 3 shows a top view of the sewer inlet section.
Figure 4 shows an enlarged cross-sectional view of the sewer inlet section, showing the joint used to connect a discharge section with a surface water receiving member.
DESCRIPTION OF THE PREFERRED EMBODIMENTS
Figure 1 illustrates a sewer inlet section 10 including a grate 1 that is set on a frame 3 having a chape which corresponds to that of grate 1. The chape of the grate 1 may be rectangular, circular or of any other suitable chape.
The grate 1 and the frame 3 form a receiving member for collecting and direct~ing surface water into an underground sewer (not shown). The frame 3 is provided with vertical walls 35 and 36 which merge with an inwardly and downwardly projecting bottom wall 30 which, in turn, merges with an evacuation conduit 9 or discharge section. A hollow member in the form of a cone shaped cast head which is oblique, hollow and truncated Bits on a cylindrical concrete base 6. The head 5 defines upper and lower openings 51 and 52. The center of the upper opening 51 does not correspond to that of the lower circular opening 52. This allows the grate 1 to take different positions upon rotation of the head 5 about the central longitudinal axis or axis of symmetry 66 of the base 6. The transversal distance of the grate 1 with the axis of symmetry 66 is at least equal to the eccentricity 65 of the head 5. This set of positions of 360 degrees optimizes the position of the grate 1 relative to a reference line, such as a curb or sidewalk. An expansion joint 4 made of a loft rubber is slipped around the evacuation conduit 9. The bottom of the inclined surface 50 of the head 5 is limited by the horizontal surface 56 of a ring 54 sitting on the upper end 60 of the base 6.
To avoid horizontal movements of the head 5 relative to the base 6, three vertical walls 53 shaped as arches are uniformly distributed on the circumference of the ring 54, under the circular junction of the inclined wall 50 and the ring 54. The center of the arch of one of the walls 53 corresponds to the area of the highest inclination of the head 5. The external wall 55 of the vertical walls 53 slides on the vertical wall 61 of the base 6. The grate 1 is confined on all its thickness by the four vertical walls 35 and 36 that surround it when it is placed on 3 0 the f rame 3 .
As shown in Figure 2, the sewer inlet section 10 is adapted to be set in an infrastructure composed of various layers 81, 82, 83 and 84.
Supports 2, with horizontal levels 26 and 27, which are related by a vertical wall 24, extend from the superior circumference of the internal and vertical walls 35. The frame 3 Bits on these supports 2 when installed on the infrastructure of the road 81 and 82. The frame 3 is "floatingly" embedded in the ground material. This allows for a proper positioning the frame 3 at the required angle relative to the base 6, while at the came time ensuing conjoint movement of the frame 3 and the ground material in which it is installed. The rounded chape 21 deviates objects that collide with the frame 3, avoiding damages and movement of the frame 3 and the grate 1. An opening 20 is made in each support 2 to ensure a homogeneous spreading of the pavement material 81 under the horizontal levels 26 and 27 when surfacing the road 80. The inclination of the wall section 37 which forms part of the bottom wall 30, and which is always in the highest part of the road 80 is different from the inclination of the wall section 38 because the evacuation conduit 9 is not centered lengthwise with the frame 3. The bottom wall 30 further comprises a pair of wall sections 39 disposed on opposed sides of the wall section 37, as seen in Fig. 3.
The inclination of the wall section 38 is set in a way so that water is directed to the evacuation conduit 9 even if the frame 3 is inclined at its maximum (approximately 25 per cent). When the road 80 is horizontal, the frame 3 is positioned so that the axis of symmetry of the evacuation conduit 9 is vertical. When the road 80 is inclined, the plane of the top surface of the frame 3 is leveled with the _ g _ plane of the top surface of the road 80 by giving an inclination to the frame 3. The bottom wall sections 37 and 38 define pressure distribution surfaces 37a and 38a at an interface with the underlying backfill material. The fact that the frame 3 is not rigidly connected to the head 5, which defines an entrante section of the base 6, allows loads to be applied directly on the frame 3 to compact the backfill material. The pressure distribution surfaces 37a and 38a ensure that the loads will be uniformly transmitted from the frame 3 to the backfill material. It is pointed out that the backfill material comprised between the frame 3 and the head 5 arts as a damper to absorb the various shock forces exerted on the frame 3.
The installation of a non-rigid connector, namely the expansion joint 4 is necessary to prevent the passage of the infrastructure 82 and 83 between the external wall 94 of the evacuation conduit 9 and the upper opening 51 of the head 5. One of the ends 40 of the joint 4 is fixed on the bottom circumference 42 at the inferior end of the evacuation conduit 9. The joint 4 is rolled up from its bottom section on the externat wall 94 of the evacuation conduit 9 on a distance determined by the position between the frame 3 and the head 5. What is left of the joint 4 is rolled over itself. The bottom section 42 of the other end 41 of the joint 4 is fixed about upper opening 51 of the head 5. To allow maximum up or down movements of the frame 3, the length of the joint 4 must be at least superior to the length of the evacuation conduit 9. The type - 8a -of expansion joint 4 described is one of the solutions prescribed to connect the head 5 to the evacuation conduit 9. In fact, the idea is to use a joint 4 which allows for movements of the frame 3 with respect to the hea<i 5 and which will prevent infiltration of the infrastructure 82 and 83 between these two elements. The joint 4 and the conduit 9 are common to all types of frames 3 and grates 1 and can be adapted to all si:aes of street draining well bases 6.
As shown in Figure 3, the evacuation conduit 9 has an external diameter that is equal to the width of t.he smallest frame 3. When the frame 3 has a greater dimension, t:he external diameter of the evacuation conduit 9 rem,ains the saure as for the smallest frame. The frame 3 has six supports 33, four in each internat corner and two positioned across each other inside the two longitudinal, vertical watts 36 of the j=rame 3. The horizontal top surface of each support 33 is positioned in a way that the top of the grate 1 corresponds to the superior section of the frame 3 when the grate 1 lits on its supports 33.
As shown in Figure 4, an annular joint 7 connects the conduit 9 to the frame 3. The annular joint 7 has a flat U shape and is provided with an upper end 72 adapted to be in the continuation of the inclined watt 37. The lover end 73 of the joint 7 is inserted in a groove locat:ed near the upper end 92 of the internat watt 94 of trie evacuation conduit 9 The upper and lover ends 72 and 73 of the joint 7 are connected to each other via a vertical watt 70 having an internat surface 71 which is flush with the internat surface 94 of the evacuation conduit 9.
This ensures adequate flow of the collected surface water. According to another embodiment of the present invention, the evacuation conduit 9 is integrally formed with the frame 3.
An annular protuberance 34 extends inwardly from the internal wall circumscribing the opening of the frame 3. The top surface 31 of the protuberance 34 is spaced from the lower opening of the frame 3 by a distance greater than slightly the thickness of the joint 7. The length of the top surface 31 is slightly less than the length of the end 72 of the joint 7. To optimize the evacuation of the water collected by the frame 3, the evacuation conduit 9 is longitudinally offset. A silicon type composite 79 or any other waterproof composite is applied between the joint 7 and the adjoining surface of the evacuation conduit 9 and frame 3.
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It is therefore an aim of the present invention to provide an adjustable sewer inlet section allowing for the adjustment of the lateral position of a receiving member with respect to a reference line.
It is a furt:her aim of the present invention to provide an adjustable sewer inlet section adapted to move conjointly with the surrounding infrastructure.
It is still a further aim of the present invention to provide an adjustable sewer inlet section which allows for uniform compaction of the surrounding backfill material.
Therefore, in a.ccordance with the present invention, there is provided an adjustable sewer inlet section for collecting and directing surface water drainage into a subterranean conduit, comprising a receiving me~mber defining at least one opening for receiving the surface water, and a hollow member having first and :second opposed end portions which are off-centered with respect to one another, said first end portion being adapted to be connected in flow communication wit:h the subterranean conduit while allowing said hollow member to be adjustably rotated with respect to said subterranean conduit wherein said second end portion displaces in an orbit-like fashion about <~n axis of rotation of laid hollow member, said receiving member being adapted to be connected in flow comrnunication with said second end portion of said receiving member and being adjustable with respect t~hereto, whereby inaccurate positioning of the subter:ranean conduit is corrected by rotating the hollow member to displace the second end portion thereof to an adjusted position, thereby enabling the receiving member connected to said hollow member to be prope~rly positioned with respect to a reference line.
In accordance w_Lth a further general aspect of the present invention, there is provided an adjustable sewer inlet ;section for collecting and directing surface water drainage into a subterranean conduit, comprising an tznfastened receiving member freely set in a ground material at an angle relative to the subterranean conduit so that an upper edge thereof is substantially flush with a slope of a ground surface, laid receiving member defining at least one inlet opening for receiving the surface water, and non-rigid connecting means for connecting said receiving member in flow communication with the subterranean conduit, whereby said receiving member can moue in at least one of an axial and a radial direction with respect to the subterranean conduit due to ground shifting.
In accordance w:ith a still further general aspect of the present invention there is provided an adjustable sewer inlet rection for collecting and directing surface water drainage into a subterranean conduit, comprising a receiving member embedded in a ground materia:l and defini.ng at least one opening for receiving the surface water, and non-rigid connecting means for connecting saic3 receiving member in flow communication with the subterranean conduit, said receiving member having a bottom wall adapted to direct collected surface water into the subterranean conduit and defining a pressure distribution surface adapted to transmit compression forces to backfill material located under sa=Ld receiving member, whereby the backfill material is uniformly compacted by applying downward loads on and about laid receiving member.
BRIEF DESCRIPTION OF THE DRAWINGS
Figure 1 shows an exploded perspective view of a sewer inlet section in accordante with a first embodiment of the present invention.
Figure 2 is a cross-sectional view of the sewer inlet section installed in different layers of the infrastructure of a rcad.
Figure 3 shows a top view of the sewer inlet section.
Figure 4 shows an enlarged cross-sectional view of the sewer inlet section, showing the joint used to connect a discharge section with a surface water receiving member.
DESCRIPTION OF THE PREFERRED EMBODIMENTS
Figure 1 illustrates a sewer inlet section 10 including a grate 1 that is set on a frame 3 having a chape which corresponds to that of grate 1. The chape of the grate 1 may be rectangular, circular or of any other suitable chape.
The grate 1 and the frame 3 form a receiving member for collecting and direct~ing surface water into an underground sewer (not shown). The frame 3 is provided with vertical walls 35 and 36 which merge with an inwardly and downwardly projecting bottom wall 30 which, in turn, merges with an evacuation conduit 9 or discharge section. A hollow member in the form of a cone shaped cast head which is oblique, hollow and truncated Bits on a cylindrical concrete base 6. The head 5 defines upper and lower openings 51 and 52. The center of the upper opening 51 does not correspond to that of the lower circular opening 52. This allows the grate 1 to take different positions upon rotation of the head 5 about the central longitudinal axis or axis of symmetry 66 of the base 6. The transversal distance of the grate 1 with the axis of symmetry 66 is at least equal to the eccentricity 65 of the head 5. This set of positions of 360 degrees optimizes the position of the grate 1 relative to a reference line, such as a curb or sidewalk. An expansion joint 4 made of a loft rubber is slipped around the evacuation conduit 9. The bottom of the inclined surface 50 of the head 5 is limited by the horizontal surface 56 of a ring 54 sitting on the upper end 60 of the base 6.
To avoid horizontal movements of the head 5 relative to the base 6, three vertical walls 53 shaped as arches are uniformly distributed on the circumference of the ring 54, under the circular junction of the inclined wall 50 and the ring 54. The center of the arch of one of the walls 53 corresponds to the area of the highest inclination of the head 5. The external wall 55 of the vertical walls 53 slides on the vertical wall 61 of the base 6. The grate 1 is confined on all its thickness by the four vertical walls 35 and 36 that surround it when it is placed on 3 0 the f rame 3 .
As shown in Figure 2, the sewer inlet section 10 is adapted to be set in an infrastructure composed of various layers 81, 82, 83 and 84.
Supports 2, with horizontal levels 26 and 27, which are related by a vertical wall 24, extend from the superior circumference of the internal and vertical walls 35. The frame 3 Bits on these supports 2 when installed on the infrastructure of the road 81 and 82. The frame 3 is "floatingly" embedded in the ground material. This allows for a proper positioning the frame 3 at the required angle relative to the base 6, while at the came time ensuing conjoint movement of the frame 3 and the ground material in which it is installed. The rounded chape 21 deviates objects that collide with the frame 3, avoiding damages and movement of the frame 3 and the grate 1. An opening 20 is made in each support 2 to ensure a homogeneous spreading of the pavement material 81 under the horizontal levels 26 and 27 when surfacing the road 80. The inclination of the wall section 37 which forms part of the bottom wall 30, and which is always in the highest part of the road 80 is different from the inclination of the wall section 38 because the evacuation conduit 9 is not centered lengthwise with the frame 3. The bottom wall 30 further comprises a pair of wall sections 39 disposed on opposed sides of the wall section 37, as seen in Fig. 3.
The inclination of the wall section 38 is set in a way so that water is directed to the evacuation conduit 9 even if the frame 3 is inclined at its maximum (approximately 25 per cent). When the road 80 is horizontal, the frame 3 is positioned so that the axis of symmetry of the evacuation conduit 9 is vertical. When the road 80 is inclined, the plane of the top surface of the frame 3 is leveled with the _ g _ plane of the top surface of the road 80 by giving an inclination to the frame 3. The bottom wall sections 37 and 38 define pressure distribution surfaces 37a and 38a at an interface with the underlying backfill material. The fact that the frame 3 is not rigidly connected to the head 5, which defines an entrante section of the base 6, allows loads to be applied directly on the frame 3 to compact the backfill material. The pressure distribution surfaces 37a and 38a ensure that the loads will be uniformly transmitted from the frame 3 to the backfill material. It is pointed out that the backfill material comprised between the frame 3 and the head 5 arts as a damper to absorb the various shock forces exerted on the frame 3.
The installation of a non-rigid connector, namely the expansion joint 4 is necessary to prevent the passage of the infrastructure 82 and 83 between the external wall 94 of the evacuation conduit 9 and the upper opening 51 of the head 5. One of the ends 40 of the joint 4 is fixed on the bottom circumference 42 at the inferior end of the evacuation conduit 9. The joint 4 is rolled up from its bottom section on the externat wall 94 of the evacuation conduit 9 on a distance determined by the position between the frame 3 and the head 5. What is left of the joint 4 is rolled over itself. The bottom section 42 of the other end 41 of the joint 4 is fixed about upper opening 51 of the head 5. To allow maximum up or down movements of the frame 3, the length of the joint 4 must be at least superior to the length of the evacuation conduit 9. The type - 8a -of expansion joint 4 described is one of the solutions prescribed to connect the head 5 to the evacuation conduit 9. In fact, the idea is to use a joint 4 which allows for movements of the frame 3 with respect to the hea<i 5 and which will prevent infiltration of the infrastructure 82 and 83 between these two elements. The joint 4 and the conduit 9 are common to all types of frames 3 and grates 1 and can be adapted to all si:aes of street draining well bases 6.
As shown in Figure 3, the evacuation conduit 9 has an external diameter that is equal to the width of t.he smallest frame 3. When the frame 3 has a greater dimension, t:he external diameter of the evacuation conduit 9 rem,ains the saure as for the smallest frame. The frame 3 has six supports 33, four in each internat corner and two positioned across each other inside the two longitudinal, vertical watts 36 of the j=rame 3. The horizontal top surface of each support 33 is positioned in a way that the top of the grate 1 corresponds to the superior section of the frame 3 when the grate 1 lits on its supports 33.
As shown in Figure 4, an annular joint 7 connects the conduit 9 to the frame 3. The annular joint 7 has a flat U shape and is provided with an upper end 72 adapted to be in the continuation of the inclined watt 37. The lover end 73 of the joint 7 is inserted in a groove locat:ed near the upper end 92 of the internat watt 94 of trie evacuation conduit 9 The upper and lover ends 72 and 73 of the joint 7 are connected to each other via a vertical watt 70 having an internat surface 71 which is flush with the internat surface 94 of the evacuation conduit 9.
This ensures adequate flow of the collected surface water. According to another embodiment of the present invention, the evacuation conduit 9 is integrally formed with the frame 3.
An annular protuberance 34 extends inwardly from the internal wall circumscribing the opening of the frame 3. The top surface 31 of the protuberance 34 is spaced from the lower opening of the frame 3 by a distance greater than slightly the thickness of the joint 7. The length of the top surface 31 is slightly less than the length of the end 72 of the joint 7. To optimize the evacuation of the water collected by the frame 3, the evacuation conduit 9 is longitudinally offset. A silicon type composite 79 or any other waterproof composite is applied between the joint 7 and the adjoining surface of the evacuation conduit 9 and frame 3.
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Claims (11)
1. An adjustable sewer inlet section for collecting and directing surface water drainage into a subterranean conduit, comprising a receiving member defining at least one opening for receiving the surface water, and a hollow member having first and second opposed end portions which are off-centered with respect to one another, laid first end portion being adapted to be connected in flow communication with the subterranean conduit while allowing said hollow member to be adjustably rotated with respect to said subterranean conduit wherein said second end portion displaces in an orbit-like fashion about an axis of rotation of raid hollow member, said receiving member being adapted to be connected in flow communication with raid second end portion of said receiving member and being adjustable with respect thereto, whereby inaccurate positioning of the subterranean conduit is corrected by rotating the hollow member to displace the second end portion thereof to an adjusted position, thereby enabling the receiving member to be properly positioned with respect to a reference line.
2. An adjustable sewer inlet section as defined in claim 1, wherein said axis coincides with a longitudinal symmetry axis of the said subterranean conduit.
3. An adjustable sewer inlet section as defined in claim 1, wherein said receiving member and said hollow member are interconnected by non-rigid connecting means for allowing angular and longitudinal movements of said receiving member relative to said hollow member.
4. An adjustable sewer inlet section as defined in claim 3, wherein said receiving member includes a tubular discharge section projecting downwardly into said second end portion of said hollow member, and wherein said non-rigid connecting means form a barrier to prevent backfill materials from falling into the second end portion of the hollow member, while allowing said tubular discharge section to assume various longitudinal and angular positions relative to said second end portion.
5. An adjustable sewer inlet section as defined in claim 4, wherein said receiving member is embedded in a surrounding infrastructure of a ground surface for movement therewith and wherein said hollow member is supported by the subterranean conduit, whereby said receiving member is allowed to be displaced with respect to said hollow member and to the subterranean conduit in response to movements of the ground surface.
6. An adjustable sewer inlet section as defined in claim 5, wherein said tubular discharge section extends downwardly from a bottom wall of said receiving member, said bottom wall defining at an interface with the backfill material a pressure distribution surface adapted to transmit compression forces to the backfill material comprised between said bottom wall and said hollow member, whereby the backfill material is uniformly compacted by applying downward loads on and about laid receiving member.
7. An adjustable sewer inlet section as defined in claim 6, wherein said receiving member includes side wall means, and wherein said bottom wall extends inwardly and downwardly of said side wall means so as to direct surface water in said tubular discharge section.
8. An adjustable sewer inlet section as defined in claim 5, wherein said receiving member includes a frame adapted to support a grate, said frame having an upper edge from which lateral flange means extend outwardly, said lateral flange means having a distal end portion disposed at a level below said upper edge.
9. An adjustable sewer inlet section as defined in claim 7, wherein said tubular discharge section is removably connected to said bottom wall.
10. An adjustable sewer inlet section as defined in claim 4, wherein said hollow member has inside dimensions which increase from said second end portion thereof.
11. An adjustable sewer inlet section as defined in claim 7, wherein said tubular discharge section has an inlet opening which is eccentric relative to said bottom wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 2212401 CA2212401C (en) | 1998-05-11 | 1998-05-11 | Adjustable sewer inlet section |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 2212401 CA2212401C (en) | 1998-05-11 | 1998-05-11 | Adjustable sewer inlet section |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2212401C true CA2212401C (en) | 2000-10-31 |
Family
ID=29274949
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2212401 Expired - Lifetime CA2212401C (en) | 1998-05-11 | 1998-05-11 | Adjustable sewer inlet section |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2212401C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7025529B2 (en) | 2002-08-07 | 2006-04-11 | Zirga Inc. | Self-leveling system |
| EP3832041A1 (en) | 2019-12-04 | 2021-06-09 | ACO Severin Ahlmann GmbH & Co. KG | Capping system, road gully, adapter and method |
-
1998
- 1998-05-11 CA CA 2212401 patent/CA2212401C/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7025529B2 (en) | 2002-08-07 | 2006-04-11 | Zirga Inc. | Self-leveling system |
| EP3832041A1 (en) | 2019-12-04 | 2021-06-09 | ACO Severin Ahlmann GmbH & Co. KG | Capping system, road gully, adapter and method |
| DE102019133026A1 (en) * | 2019-12-04 | 2021-06-10 | ACO Severin Ahlmann GmbH & Co Kommanditgesellschaft | Attachment system, road drain, adapter element and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKEX | Expiry |
Effective date: 20180511 |