GB2444726A - Interlocking sections for forming seating unit for manhole cover - Google Patents
Interlocking sections for forming seating unit for manhole cover Download PDFInfo
- Publication number
- GB2444726A GB2444726A GB0606250A GB0606250A GB2444726A GB 2444726 A GB2444726 A GB 2444726A GB 0606250 A GB0606250 A GB 0606250A GB 0606250 A GB0606250 A GB 0606250A GB 2444726 A GB2444726 A GB 2444726A
- Authority
- GB
- United Kingdom
- Prior art keywords
- sections
- manhole
- seating unit
- manhole cover
- interlocking
- 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- Withdrawn
Links
- 239000004570 mortar (masonry) Substances 0.000 claims abstract description 4
- 239000007787 solid Substances 0.000 claims description 2
- 239000000126 substance Substances 0.000 claims description 2
- 229910000831 Steel Inorganic materials 0.000 claims 1
- 239000000463 material Substances 0.000 claims 1
- 239000010959 steel Substances 0.000 claims 1
- 238000000034 method Methods 0.000 description 3
- 239000011449 brick Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 239000011178 precast concrete Substances 0.000 description 2
- 239000002351 wastewater 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
-
- 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
- E02D29/121—Manhole shafts; Other inspection or access chambers; Accessories therefor characterised by the connection between shaft elements, e.g. of rings forming said shaft
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)
- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
Abstract
The interlocking sections 2,4,6,8, for forming the seating unit to support a manhole cover frame on top of a concrete covering slab, are each provided with male 19 and female joint portions to enable a number of sections to be interlocked to form the seating unit. The joint portions are preferably mortise joints. The abutment surfaces of the sections are preferably roughened or recessed to facilitate engagement with mortar. The sections may be reinforced.
Description
Manhole Sections and a Method for ConstructinQ Manholes The present
invention relates to pre-cast interlocking sections. More particularly to sections used to aid in the construction of Manholes, Gullys etc. Manholes are well known, which comprise a network of pipes for canying away foul and wastewater, upon which sits the main chamber.
This being formed from precast concrete rings with a covering slab to cap the chamber, thus creating a working space for a person to enter and to carry the frame and cover.
Brick work or pre-cast seating units are built on top of the covering slab so that the cover and frame can be fitted to suit the required ground level.
Pre-cast concrete seating units are best known for there speed and strength over the more conventual method of brick built Manholes. Seating units are designed to be manually lifted, one unit exceeds the recommended weight that one or two persons should hft, according to the H.S.E. Manual Handling Regulations.
According to the present invention there is provided prefabricated, lightweight, interlocking mortise sections for the rapid construction of Manholes upon the covering slab to sit the frame and cover on.
Preferably, the sections are formed from a solid substance and may be reinforced.
Possibly, the surfaces of the sections may be recessed or roughened to facilitate the mortar engagement.
Possibly, the sections may have one or more male and female mortise joints.
A specific embodiment of the invention will now be described by way of example, with reference to the accompanying drawings in which Figure 1 Shows a schematic side view illustrating the Manhole mortise sections in position, in accordance with the present invention.
Figure 2 Is a plan aerial view of a complete layer of the Manhole mortise sections in accordance with the present invention.
Figure 3 Is a plan view of a second Manhole section in accordance with the present invention.
Figure 4 Is a plan view of a third embodiment of a Manhole section in accordance with the present invention.
Figure 5 Is a plan view of a fourth section in accordance with the present invention.
Figure 6 Is a plan view of a fifth embodiment of a Manhole section in accordance with the present invention.
Referring to the drawing in Figure 1, the manhole comprises a network of pipes iQ upon which sits the chamber 12 creating the working area j4 for a person to work in.
This is then capped with a covering slab 16 leaving a smaller access opening around which the precast sections 18 are placed to lift the cover and frame to the finished ground level.
In order to build the Manhole using the precast sections.fi as shown in Figure 1, and illustrated in Figure 2, section 18 number 2 is placed on a bed of mortar around the opening and then sections numbers 4,6, 8 are lowered into place using the same procedure, and so on, until it reaches the required height Figure 3 illustrates a third embodiment, having a rectangle mortise joint i, Figure 4 has a wedge shape mortise, Figure 5 has a round-oval shape mortise and Figure 6 has a T shaped mortise. 4.
Claims (5)
1. Manhole sections comprising a number of interlocking sections that when locked together form the main structure or access point to the main chamber of any size or shape.
2. Manhole sections as claimed in claim 1 wherein the member may have more than one interlocking section of a male and female mortise joint.
3. Manhole sections as claimed in claim I or claim 2 wherein the male and female mortise joints can be shaped to receive a matching projection of another piece.
4. Manhole sections as claimed in claim 2 or claim 3 wherein abutment surfaces of the section are roughened or recessed to facilitate abutment or mortar engagement with another layer.
5. Manhole sections as claimed in any preceding claim wherein the member is formed from a solid substance and maybe reinforced with a steel rod or any other suitable material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB0606250A GB2444726A (en) | 2006-03-29 | 2006-03-29 | Interlocking sections for forming seating unit for manhole cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB0606250A GB2444726A (en) | 2006-03-29 | 2006-03-29 | Interlocking sections for forming seating unit for manhole cover |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB0606250D0 GB0606250D0 (en) | 2006-05-10 |
| GB2444726A true GB2444726A (en) | 2008-06-18 |
Family
ID=36424776
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB0606250A Withdrawn GB2444726A (en) | 2006-03-29 | 2006-03-29 | Interlocking sections for forming seating unit for manhole cover |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB2444726A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2276181A (en) * | 1993-03-18 | 1994-09-21 | Phi Design Ltd | Interlocking building blocks |
| US5470172A (en) * | 1994-06-06 | 1995-11-28 | Wiedrich; Dwight G. | Manhole adjusting extension ring section |
| GB2351751A (en) * | 1999-06-18 | 2001-01-10 | Swintex | Underground junction boxes |
| US20040261343A1 (en) * | 2003-06-26 | 2004-12-30 | Koteskey Gary L. | Molded sectioned riser |
| GB2426775A (en) * | 2005-05-31 | 2006-12-06 | Uponor Innovation Ab | Riser for an underground chamber |
-
2006
- 2006-03-29 GB GB0606250A patent/GB2444726A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2276181A (en) * | 1993-03-18 | 1994-09-21 | Phi Design Ltd | Interlocking building blocks |
| US5470172A (en) * | 1994-06-06 | 1995-11-28 | Wiedrich; Dwight G. | Manhole adjusting extension ring section |
| GB2351751A (en) * | 1999-06-18 | 2001-01-10 | Swintex | Underground junction boxes |
| US20040261343A1 (en) * | 2003-06-26 | 2004-12-30 | Koteskey Gary L. | Molded sectioned riser |
| GB2426775A (en) * | 2005-05-31 | 2006-12-06 | Uponor Innovation Ab | Riser for an underground chamber |
Also Published As
| Publication number | Publication date |
|---|---|
| GB0606250D0 (en) | 2006-05-10 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| WAP | Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1) |