GB2423312A - Heave precaution in foundation trenches - Google Patents

Heave precaution in foundation trenches Download PDF

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Publication number
GB2423312A
GB2423312A GB0503179A GB0503179A GB2423312A GB 2423312 A GB2423312 A GB 2423312A GB 0503179 A GB0503179 A GB 0503179A GB 0503179 A GB0503179 A GB 0503179A GB 2423312 A GB2423312 A GB 2423312A
Authority
GB
United Kingdom
Prior art keywords
low density
sheet
heave
polythene
precaution
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Withdrawn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
GB0503179A
Other versions
GB0503179D0 (en
Inventor
Jonathan Stefan Jarkulisz
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB0503179A priority Critical patent/GB2423312A/en
Publication of GB0503179D0 publication Critical patent/GB0503179D0/en
Publication of GB2423312A publication Critical patent/GB2423312A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D27/00—Foundations as substructures
    • E02D27/01—Flat foundations
    • E02D27/02—Flat foundations without substantial excavation
    • 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
    • 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
    • E02D31/14—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 against frost heaves in soil

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Paleontology (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Environmental & Geological Engineering (AREA)
  • Hydrology & Water Resources (AREA)
  • Foundations (AREA)

Abstract

An apparatus for combating ground heave in the construction of foundations, comprising a sheet of low density material, such as polystyrene, which is pinned to a foundation trench wall, the low density sheet having additional overlapping sheets of polythene bonded to one side. The polythene sheet is creased at a specific distance from the edge of the low density sheet so as to assist with the correct placement and securement of the low density material within the trench. The polythene sheeting also overlaps adjoining low density sheets to seal any gaps with the securing pins passing through the polythene sheet, the adjoining low density sheet and into the trench wall. The apparatus allows the accurate placement of the low density sheets without the need for an operative to enter the excavation.

Description

Safety Fix Heave Precaution.
Foundations dug to depth below 1500 mm in clay ground, due to the influence of trees, require some method of heave precaution. This is usually a low-density material or void former that allows the ground to "swell" without damage to the foundations.
However the problem is fixing this material in place. Health and Safety law regulates against the entry of operatives into deep excavations without some form of protection.
This product can be installed without operatives entering the foundation and is more secure during pouring of the concrete.
Safety Fix has two pieces of polythene bonded to its face. The polythene is pre creased at a point that allows the end of the polythene sheet to lie in the bottom of the trench. The sheet closest to the heave precaution lies against the face of the excavation. Then the top of the heave precaution is the pinned to the trench using plastic spikes. Adjacent sheets are fixed by lapping the horizontal joint with the attached polythene sheet.
As the concrete is poured into the foundation the polythene is trapped and therefore holds the heave precautions in place.
Advantages over present systems.
Operatives are not required to enter the excavation in order to fix the product.
The product is more securely fixed with less chance of it being displaced by the concrete.
The horizontal laps ensure that there are no gaps to the heave precautions and a continuous protection is provided to the complete face of the foundation.

Claims (1)

  1. Claims Using this type of heave precaution would alleviate the need to
    send operative into a foundation excavation and would enable operative to comply with current Health and Safety legislation Using this type of heave precaution it would be impossible for the heave precautions to move during pouring of a deep trench fill foundation and compromise the foundation structurally Using this type of heave precaution allows the material to be installed more accurately.
GB0503179A 2005-02-16 2005-02-16 Heave precaution in foundation trenches Withdrawn GB2423312A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB0503179A GB2423312A (en) 2005-02-16 2005-02-16 Heave precaution in foundation trenches

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0503179A GB2423312A (en) 2005-02-16 2005-02-16 Heave precaution in foundation trenches

Publications (2)

Publication Number Publication Date
GB0503179D0 GB0503179D0 (en) 2005-03-23
GB2423312A true GB2423312A (en) 2006-08-23

Family

ID=34385557

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0503179A Withdrawn GB2423312A (en) 2005-02-16 2005-02-16 Heave precaution in foundation trenches

Country Status (1)

Country Link
GB (1) GB2423312A (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2268951A (en) * 1992-07-14 1994-01-26 Metzeler Kay Ltd Ground fill material
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

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2268951A (en) * 1992-07-14 1994-01-26 Metzeler Kay Ltd Ground fill material
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
GB2344362A (en) * 1996-03-11 2000-06-07 Combat Polystyrene Group Ltd Combatting soil movement pressure in foundation trenches
GB2329914A (en) * 1997-09-17 1999-04-07 Combat Polystyrene Group Ltd A method of combating soil movement in foundation trenches

Also Published As

Publication number Publication date
GB0503179D0 (en) 2005-03-23

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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)