GB2436571A - Clay heave protection fixing tool - Google Patents
Clay heave protection fixing tool Download PDFInfo
- Publication number
- GB2436571A GB2436571A GB0606512A GB0606512A GB2436571A GB 2436571 A GB2436571 A GB 2436571A GB 0606512 A GB0606512 A GB 0606512A GB 0606512 A GB0606512 A GB 0606512A GB 2436571 A GB2436571 A GB 2436571A
- Authority
- GB
- United Kingdom
- Prior art keywords
- tube
- clay
- protection
- rod
- flat plate
- 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- Withdrawn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
- 239000004927 clay Substances 0.000 title claims abstract description 21
- 239000004793 Polystyrene Substances 0.000 abstract description 10
- 229920002223 polystyrene Polymers 0.000 abstract description 10
- 239000007787 solid Substances 0.000 abstract description 8
- 229910000831 Steel Inorganic materials 0.000 abstract description 7
- 239000010959 steel Substances 0.000 abstract description 7
- 238000000034 method Methods 0.000 description 4
- 241001149900 Fusconaia subrotunda Species 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 230000009172 bursting Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D31/00—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
- E02D31/10—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution against soil pressure or hydraulic pressure
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Hydrology & Water Resources (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)
Abstract
A ground heave protection fixing tool comprises two pieces. The first piece is a hollow tube having an angled opening at one end. A flat plate is attached to the tube set at the same angle as the opening and set back a nominal distance from the end. The second piece consists of a solid rod with a flat plate attached to an end. The solid and hollow rods are preferably the same length, with the solid rod having a smaller diameter to allow it to slide easily inside the hollow rod. Clay heave protection is attached to the side of a trench with the tool. The protection is preferably held in place temporaliy by a road pin. The hollow tube is pushed into the protection, preferably polystyrene until the flat plate touches it. The angle of the tube and plate prevent slippage. Steel pins are dropped down the tube prior to being hammered through the polystyrene and into the clay wall by the solid rod. The steel pins are correctly positioned when the ends of rod and tube are touching.
Description
<p>1 2436571 Clay Heave Protection Fitting Tool This invention relates to
a device that will fix clay heave protection in a foundation without the need for personnel to enter the foundation trench.</p>
<p>Clay heave protection usually comes in the form of sheets of compressible polystyrene, approximately 100mm thick. It is used to negate the bursting pressure exerted on concrete foundations from the surrounding clay ground.</p>
<p>Standard trench fill foundations in clay areas require clay heave protection to be fixed to the side of the bank prior to the placement of concrete. The heave protection has to be suspended approximately 500mm from the base of the foundation.</p>
<p>The traditional method of fixing this heave protection was to pin it to the side of the bank using steel pins. This was usually done by an operative entering the trench and hammering in the pin. Due to increasing safety awareness on construction sites this practice is now forbidden.</p>
<p>The Clay Heave Protection Fitting Tool enables the pins to be fixed whilst standing on the ground. The operation can be carried out without entering the trench.</p>
<p>The invention will now be described solely by way of example and with reference to the accompanying drawings in which: Figure 1 shows a typical foundation detailing the position of the Clay Heave Protection.</p>
<p>Figures 2a & 2b shows the current methods employed to place the clay heave protection. These practices are actively discouraged by the Health and Safety Executive.</p>
<p>Figure 3 shows how the new Clay Heave Protection Fixing tool is used to safely fix the Clay Heave Protection to the side of the excavation.</p>
<p>Figure 4 shows the general arrangement for the Clay Heave Protection Fixing tool.</p>
<p>The tool comprises of two pieces. The first piece is made of a hollow tube cut at an angle at one end. On that end a flat plate is attached to the hollow tube and is set at the same angle as the cut end of the tube. The flat plate is set back a nominal distance from the end of the tube.</p>
<p>The second piece consists of a solid rod with a flat plate attached to the end. The solid rod is made to the same length as the hollow tube.</p>
<p>The solid rod is of a smaller diameter to that of the hollow tube. This ensures that the rod will slide down the hollow tube.</p>
<p>The procedure of fixing the Clay Heave Protection is as follows; The clay heave protection is temporarily held in place by a road pin driven into the top of the polystyrene. The hollow tube is then pushed against the polystyrene until the flat plate is touching the polystyrene. The small angled projection of the hollow pipe is designed so that the pipe cannot slip down the polystyrene and is secure. Steel pin approximately 300mm and of smaller diameter to the hollow tube is then dropped down the hollow tube. This is then followed by the long solid rod. The rod is then used by the operative with a hammering action to drive the steel pin through the polystyrene and into the clay bank. The steel pin is in position once the plate on the end of the solid rod is in contact with the hollow tube. The steel pin is now firmly fixed into the clay and is holding the polystyrene in place. The process is then repeated for as many pins as required. The pins are placed by the tool at an angle which stops the polystyrene from dropping any further once placed.</p>
Claims (1)
- <p>Claims 1. A Clay Heave Protection Fixing tool that enables the clayheave protection to be placed whilst the operative is standing upright on the adjacent ground, and not in the foundation trench.</p>
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB0606512A GB2436571A (en) | 2006-03-31 | 2006-03-31 | Clay heave protection fixing tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB0606512A GB2436571A (en) | 2006-03-31 | 2006-03-31 | Clay heave protection fixing tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB0606512D0 GB0606512D0 (en) | 2006-05-10 |
| GB2436571A true GB2436571A (en) | 2007-10-03 |
Family
ID=36424998
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB0606512A Withdrawn GB2436571A (en) | 2006-03-31 | 2006-03-31 | Clay heave protection fixing tool |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB2436571A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2287730A (en) * | 1994-03-23 | 1995-09-27 | Metzeler Kay Ltd | Building foundation construction |
| GB2311081A (en) * | 1996-03-11 | 1997-09-17 | Combat Polystyrene Group Ltd | Combating soil movement pressure in foundation ditches |
| GB2329914A (en) * | 1997-09-17 | 1999-04-07 | Combat Polystyrene Group Ltd | A method of combating soil movement in foundation trenches |
| GB2420797A (en) * | 2004-12-03 | 2006-06-07 | Springvale Eps Ltd | Compressible foundation liner for resistance to soil movement pressure |
-
2006
- 2006-03-31 GB GB0606512A patent/GB2436571A/en not_active Withdrawn
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2287730A (en) * | 1994-03-23 | 1995-09-27 | Metzeler Kay Ltd | Building foundation construction |
| GB2311081A (en) * | 1996-03-11 | 1997-09-17 | Combat Polystyrene Group Ltd | Combating soil movement pressure in foundation ditches |
| GB2329914A (en) * | 1997-09-17 | 1999-04-07 | Combat Polystyrene Group Ltd | A method of combating soil movement in foundation trenches |
| GB2420797A (en) * | 2004-12-03 | 2006-06-07 | Springvale Eps Ltd | Compressible foundation liner for resistance to soil movement pressure |
Also Published As
| Publication number | Publication date |
|---|---|
| GB0606512D0 (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) |