[go: up one dir, main page]

WO2003038198A1 - Procede et appareil pour former des fondations - Google Patents

Procede et appareil pour former des fondations Download PDF

Info

Publication number
WO2003038198A1
WO2003038198A1 PCT/GB2001/004775 GB0104775W WO03038198A1 WO 2003038198 A1 WO2003038198 A1 WO 2003038198A1 GB 0104775 W GB0104775 W GB 0104775W WO 03038198 A1 WO03038198 A1 WO 03038198A1
Authority
WO
WIPO (PCT)
Prior art keywords
tube
section
foundation
forming
hollow
Prior art date
Application number
PCT/GB2001/004775
Other languages
English (en)
Inventor
Clark Gordon
Original Assignee
Aspin Foundations Limited
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
Priority to GB0011028A priority Critical patent/GB2363133B/en
Application filed by Aspin Foundations Limited filed Critical Aspin Foundations Limited
Priority to PCT/GB2001/004775 priority patent/WO2003038198A1/fr
Priority to EP01978632A priority patent/EP1440209A1/fr
Priority claimed from US09/999,417 external-priority patent/US20030082012A1/en
Publication of WO2003038198A1 publication Critical patent/WO2003038198A1/fr

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D7/00—Methods or apparatus for placing sheet pile bulkheads, piles, mouldpipes, or other moulds
    • E02D7/22—Placing by screwing down
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D27/00—Foundations as substructures
    • E02D27/32—Foundations for special purposes
    • E02D27/42—Foundations for poles, masts or chimneys

Definitions

  • the present invention relates generally to forming foundations, and more particularly, but not exclusively, to the formation of foundations for the purpose of mounting railway signalling posts and the like thereto.
  • Foundations formed according to the invention may, however, be used for many purposes, not just limited to railway applications, but also applications in many other industries, for example, highways, airports, civil structures.
  • the foundations may be for a variety of superstructures, such as lighting columns, telecommunications masts, gantries, barriers, or other structures.
  • railway signalling posts have been secured to a concrete plinth set within the ground adjacent to the railway tracks.
  • a foundation hole once drilled is filled with concrete and this is capped-off with the concrete plinth.
  • steel bolts which are set within the plinth are able to receive a base platform of the signalling post (or other such structure).
  • a method of forming a foundation including the steps of: drilling a pilot bore-hole to a required depth; reaming the pilot bore-hole with a rotating hollow-section tube which is not retracted and remains in the ground; and securing a load-bearing mounting platform to the end of the tube.
  • the method preferably includes the steps of: reaming the pilot bore-hole with a hollow-section steel tube, comprising a plurality of tube sections which are interconnected via mutually mating screw threads; and mounting a signalling post to the load-bearing mounting platform.
  • a foundation forming apparatus including: a hollow section reaming tube comprising at least one tube section adapted to connect with other tube sections via corresponding screw threads; a displacing tube section with an end shaped to displace material; a rotary mechanism for providing a torque to an end of the reaming tube distal from the displacing tube section; and a terminal tube section.
  • the terminal tube section preferably includes, or is adapted to receive, a load- bearing mounting platform.
  • the present invention further provides a method of forming a foundation, comprising the steps of rotating a hollow-section tube into the ground to form a support, and securing a load-bearing mounting platform to the end of the tube.
  • Figure 1 is a side view of a drilling rig
  • Figure 2 is a side view of the drilling rig of Figure 1 including a reaming tube
  • Figure 3 is a partially exploded view of the reaming tube, terminal tube section and mounting platform;
  • Figure 4 is a plan view of a securing jig
  • Figure 5 is a sectional view of a signalling post in place after installation
  • Figure 6 is a schematic force diagram showing the lines of action on a reaming tube within the ground
  • Figure 7 is an elevation view of a displacing tube section; and Figure 8 shows the displacing tube section in operation.
  • a drilling rig 10 includes a mast 20 and a platform 15 with a ram 30 connected therebetween.
  • the rig is most preferably self-propelled .
  • a rotary drive means in the form of a motor 60 for providing rotary power to an auger 70.
  • the rig 10 can be manoeuvred via caterpillar tracks 40 and control means 50.
  • An operator controls the rig through manipulation of control levers 51.
  • the control means 50 can be mounted on the rig 10 as shown, or it may be independent and remote from the rig but connected to the rig via a suitable control line.
  • the motor 60 is slidably supported on a jib element 21 which is adapted to traverse up and down the mast 20, thus giving control over drilling depths. Again, movement of the jib 21 is controlled via the control means 50 and the levers 51.
  • the rig 10 is manoeuvred into place until the auger 70 is positioned over the desired spot.
  • a pilot hole 110 is then bored out to a desired depth (shown as 115 for convenience). Drilling a pilot hole enables investigation of the type and parameters of the material surrounding the location of the foundation site. The depth of the pilot hole depends on these parameters, and these are determined on site.
  • the auger 70 is withdrawn from the pilot hole, detached from the motor 60 and replaced with a reaming tube 100.
  • the reaming tube 100 is coupled to a screw thread 80 disposed on a lower portion of the motor.
  • the tube 100 is depicted as a single unit, whereas it will in general consist of a plurality of tube sections as shown in Figure 3.
  • the reaming tube consists of several tubular steel sections of lm in length. Each tubular section has an external diameter of 220mm, the internal diameter is dictated by the thickness of the outer wall of the tube; wall thickness will be determined by the strength of the tube required and corrosion rate analysis in a given application.
  • a pilot bore-hole of diameter 185mm will be sunk to the required depth. The reaming operation will then extend the diameter of the hole to 220mm.
  • Each reaming tube section 101 to 103 has an outer screw thread 104 which mates with an internal screw thread 105 of an adjoining section.
  • the tube segments can be joined by other means, such as clips, bolts, welds or others.
  • a displacing tube section 106 will act to displace the surrounding soil as it travels down the pilot bore-hole, see Figure 8.
  • the reaming tube 100 is rotated downwards into the soil 200, consequently reaming the pilot hole 110 (the diameter of which is less than the diameter of the reaming tube) by displacing the outer section 125 until the tube 100 reaches a desired depth 115.
  • the proximal end of tube section 103 will be at a particular specified level (eg ground level).
  • Rotating (“spinning") the reaming tube 100 into the ground in a cork-screw fashion has the advantage over the conventional technique of pile-driving (ie hammering), that the same plant equipment, ie rig 110, is used for both pilot bore-hole drilling and the implanting of the foundation itself, namely, the reaming tube 100.
  • the rotary drive means 60 rotates the reaming tube 100 in a sense that tends to tighten the connection between the tube sections 101-103.
  • a structural glue will be used to aid adhesion between adjacent tubes sections.
  • a typical structural glue is an epoxy adhesive, an example of which is made by FEB Limited.
  • the displacing tube section 104 displaces the ground 200 surrounding the bore hole. There are no restrictions to the depth to which the tube may be sunk, or to the diameter of the tube itself.
  • the displacing tube section 106 (bit 106) enlarges the pilot bore-hole 110 to the larger diameter hole 120.
  • the displacing tube section includes an outer screw thread 107 for mating with thread sections 104.
  • Section 106 flares from a diameter equal to the diameter of the reaming tube to a diameter greater, and then tapers to a diameter which is less than the diameter of the pilot bore-hole 110. This profile assists in displacing the soil surrounding the pilot hole.
  • An initial reamed area 125 is produced, of diameter roughly the same as the widest diameter of bit 106. This exists for a short period only. After a certain time the soil at the circumference of the hole 120 will 'relax' back to a position where the soil and the outer surface of the reaming tube 100 are in close contact. The close contact between tube and soil gives rise to the adhesion forces 215, as discussed above.
  • the displacing tube section 106 along with the entire reaming tube 100 remain buried in the soil.
  • the number of tube sections 101 to 103 will depend on the nature and depth of the foundation required. An example might be to ream a 5m bore hole using five lm tube sections.
  • the motor 60 is detached from the ultimate tube section by reversing the motor and thus undoing the final internal screw thread 105 from the thread 80.
  • a terminal tube section 140 is screwed into the exposed open end of the embedded reaming tube 100; this will preferably have been pre-welded to a hollow, steel box section support platform 150.
  • the support platform may be secured to the tube, once the tube is in place in the ground.
  • many types of structural posts and supports may be secured.
  • a track side railway signalling post 300 is bolted to the support platform 150.
  • Many different types of supports or heads can be affixed to the tubes in site.
  • One example is a levelling screw baseplate connection. Baseplates will usually be mounted at approximately ground level.
  • signalling posts and the like will be secured to the platform 150 via heavy gauge mounting bolts 160 which are threaded through the signalling post base 310 and are anchored to the platform 150.
  • Figure 6 shows a schematic diagram of the types of forces acting on the tube 100 in a typical foundation scenario.
  • the tube 100 is forced into the ground 200 by vertical load 230 assisted by an applied torque 225.
  • the ground in the vicinity of the foundation site is split into an upper strata 201 and a lower strata 202.
  • These may be of different material, eg lower strata 202 maybe generally clay-based, whereas upper strata 201 might be of lighter, sandy, material, for example.
  • Shear forces 220 are resisted by the lateral support forces 250 provided by the surrounding soil in strata 201. Below this in strata 202 vertical load 230 (corresponding to the weight of the supported post) is resisted by adhesion forces 215 and end bearing forces 260.
  • Figure 6 includes the terminal tube section 140.
  • a jig 400 is provided which sits above the pilot hole at ground level, see Figure 4.
  • the jig 400 comprises a base plate 410 which is bolted to the ground over the hole via bolts 420.
  • the pilot hole 110 is surrounded by chuck-type jaws 425 whose inner most circumferential edge 430 delimits the reaming tube diameter 120.
  • the jig grips each section with sufficient pressure to allow the torque to be transferred downwards to the cutting end but also to prevent any slipping between thread 80 and section thread 105.
  • pilot bore-hole and reaming operation will take place together with an auger preceding the reaming tube and then removed when the desired depth is reached, or alternatively the tube alone may be spun (rotated) into the ground without the necessity of a pre-bore.
  • a cutting bit may be used instead of using a displacing type bit, having a widened (bulged) portion, as described above.
  • the auger and steel reaming tube sections are preferably in easily manoeuvrable sections eg, but not necessarily, in the range of 250mm to in excess of 3m, preferably lm in length, to restrict the overall height of the operation.
  • the tubes may be of any desired diameter and wall thickness.
  • tubes are currently proposed to be of steel, or other metal, they may alternatively be of other materials, including, but not limited to, plastics materials, polymer, GRP, etc.
  • a plurality of tubes can be installed over an area, to support a common superstructure (ie several tubes support a single load-bearing platform).
  • Apparatus according to the invention may be connected to the hydraulic arm of a machine which is conventionally known as a road/railer machine, and which can then be used to make foundations according to embodiments of the invention.

Landscapes

  • Engineering & Computer Science (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)
  • Foundations (AREA)
  • Earth Drilling (AREA)
  • Piles And Underground Anchors (AREA)

Abstract

L'invention concerne un procédé permettant de former des fondations au moyen d'un tube aléseur à section creuse (100). Ce procédé consiste à percer un trou pilote à une profondeur voulue, puis à aléser ce trou pilote en faisant pivoter le tube aléseur à section creuse, ce dernier restant ensuite dans le trou. Ce tube aléseur à section creuse (100) comprend au moins une section de tube (103) conçue pour être raccordée à une autre section de tube (102) par l'intermédiaire de filetages correspondants (104).
PCT/GB2001/004775 2000-05-09 2001-10-29 Procede et appareil pour former des fondations WO2003038198A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB0011028A GB2363133B (en) 2000-05-09 2000-05-09 A method and apparatus for forming foundations
PCT/GB2001/004775 WO2003038198A1 (fr) 2000-05-09 2001-10-29 Procede et appareil pour former des fondations
EP01978632A EP1440209A1 (fr) 2001-10-29 2001-10-29 Procede et appareil pour former des fondations

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB0011028A GB2363133B (en) 2000-05-09 2000-05-09 A method and apparatus for forming foundations
PCT/GB2001/004775 WO2003038198A1 (fr) 2000-05-09 2001-10-29 Procede et appareil pour former des fondations
US09/999,417 US20030082012A1 (en) 2000-05-09 2001-10-31 Method and apparatus for forming foundations

Publications (1)

Publication Number Publication Date
WO2003038198A1 true WO2003038198A1 (fr) 2003-05-08

Family

ID=27767728

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2001/004775 WO2003038198A1 (fr) 2000-05-09 2001-10-29 Procede et appareil pour former des fondations

Country Status (2)

Country Link
GB (1) GB2363133B (fr)
WO (1) WO2003038198A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2411909A (en) * 2004-03-08 2005-09-14 Aspin Foundations Ltd Tubular foundation element

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2363133B (en) * 2000-05-09 2002-06-26 Gordon Clark A method and apparatus for forming foundations
US9249551B1 (en) 2012-11-30 2016-02-02 American Piledriving Equipment, Inc. Concrete sheet pile clamp assemblies and methods and pile driving systems for concrete sheet piles
US9371624B2 (en) * 2013-07-05 2016-06-21 American Piledriving Equipment, Inc. Accessory connection systems and methods for use with helical piledriving systems
NL2014075B1 (en) * 2014-12-30 2016-10-12 High Five Solutions B V Method for anchoring and/or founding an object to the ground.

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1484463A1 (de) * 1963-03-26 1969-01-23 Elek Sche Anlagen Gmbh Ges Vorrichtung und Verfahren zum Herstellen von Gruendungen fuer Freileitungsmaste
DE3617025A1 (de) * 1986-05-21 1987-11-26 Delmag Maschinenfabrik Vorgefertigter betonpfahl sowie verfahren und vorrichtung zu seinem einbringen ins erdreich
US5066168A (en) * 1991-03-05 1991-11-19 A.B. Chance Company Cylindrical foundation support drivable into ground with removable helix
US6142712A (en) * 1998-02-03 2000-11-07 White; Richard Hollow screw-in pile
GB2363133A (en) * 2000-05-09 2001-12-12 Gordon Clark Forming foundation, e.g. for a post

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1545809A (en) * 1976-10-28 1979-05-16 Soil Mechanics Ltd Piling method
IE61789B1 (en) * 1988-08-12 1994-11-30 Joseph Edwards A method and appratus for piling

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1484463A1 (de) * 1963-03-26 1969-01-23 Elek Sche Anlagen Gmbh Ges Vorrichtung und Verfahren zum Herstellen von Gruendungen fuer Freileitungsmaste
DE3617025A1 (de) * 1986-05-21 1987-11-26 Delmag Maschinenfabrik Vorgefertigter betonpfahl sowie verfahren und vorrichtung zu seinem einbringen ins erdreich
US5066168A (en) * 1991-03-05 1991-11-19 A.B. Chance Company Cylindrical foundation support drivable into ground with removable helix
US6142712A (en) * 1998-02-03 2000-11-07 White; Richard Hollow screw-in pile
GB2363133A (en) * 2000-05-09 2001-12-12 Gordon Clark Forming foundation, e.g. for a post

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2411909A (en) * 2004-03-08 2005-09-14 Aspin Foundations Ltd Tubular foundation element

Also Published As

Publication number Publication date
GB0011028D0 (en) 2000-06-28
GB2363133B (en) 2002-06-26
GB2363133A (en) 2001-12-12

Similar Documents

Publication Publication Date Title
US10954644B2 (en) Screw pile substructure support system
AU697363B2 (en) Metal foundation push-it and installation apparatus and method
US5944452A (en) Heavy duty foundation installation apparatus and method
US4697959A (en) Method and apparatus for installing an in-ground support footing around an upstanding elongate object
US5482407A (en) Helical outrigger assembly serving as an anchor for an underpinning drive assembly
US5516237A (en) Process to anchor a post or a string of posts in the ground, and anchoring pier of a post or a string of posts produced by the practice of this process
US7108458B1 (en) Interlocking slab leveling system
CN114790738B (zh) 一种基于装配式大直径管桩的基坑支护施工装置及方法
EP2700750B1 (fr) Pieu de fondation pour des ouvrages offshore et procédé de fabrication d'un pieu de fondation pour des ouvrages offshore
US4711603A (en) Slab jacking process and apparatus
US20030082012A1 (en) Method and apparatus for forming foundations
EP3303711B1 (fr) Procédé de réalisation d'une fondation d'une tour et tour sur terre ferme
WO2003038198A1 (fr) Procede et appareil pour former des fondations
EP1440209A1 (fr) Procede et appareil pour former des fondations
GB2411909A (en) Tubular foundation element
US11866902B2 (en) Underpinning pile assembly for supporting structure upon the earth
JPH0571731B2 (fr)
JP3325550B2 (ja) 杭建込装置及び杭建込工法
JP2023136911A (ja) 杭打設方法
GB2346643A (en) Method of forming a pile using an anchor
CN118065759A (zh) 一种滨河地区富砂地层旋挖钻双护筒钻进施工工艺
JP2001131966A (ja) 先端閉塞中空杭の建て込み方法
HK1137492A (en) Torque down pile substructure support system
MXPA97000214A (en) Apparatus and method of impulsion and installation of metal foundation
NL9300547A (nl) Werkwijze voor het stabiliseren en/of herstellen van hellende of vervormde bouwwerken.

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NO NZ OM PH PL PT RO RU SD SE SG SI SK SL TJ TM TR TT TZ UA UG US UZ VN YU ZA ZW

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): GH GM KE LS MW MZ SD SL SZ TZ UG ZW AM AZ BY KG KZ MD RU TJ TM AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG

121 Ep: the epo has been informed by wipo that ep was designated in this application
WWE Wipo information: entry into national phase

Ref document number: 2001978632

Country of ref document: EP

WWP Wipo information: published in national office

Ref document number: 2001978632

Country of ref document: EP

NENP Non-entry into the national phase

Ref country code: JP