EP1405952A2 - Method of constructing a basement beneath an existing building - Google Patents

Method of constructing a basement beneath an existing building Download PDF

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Publication number
EP1405952A2
EP1405952A2 EP03019069A EP03019069A EP1405952A2 EP 1405952 A2 EP1405952 A2 EP 1405952A2 EP 03019069 A EP03019069 A EP 03019069A EP 03019069 A EP03019069 A EP 03019069A EP 1405952 A2 EP1405952 A2 EP 1405952A2
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EP
European Patent Office
Prior art keywords
basement
bed
surface area
beneath
useful surface
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.)
Granted
Application number
EP03019069A
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German (de)
French (fr)
Other versions
EP1405952B1 (en
EP1405952A3 (en
Inventor
Vincenzo Collina
Robert Zago
Lamberto Zambianchi
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.)
SO L E S LAVORI EDILI E SERBATOI SpA SOC
Original Assignee
SO L E S LAVORI EDILI E SERBATOI SpA SOC
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Publication of EP1405952A2 publication Critical patent/EP1405952A2/en
Publication of EP1405952A3 publication Critical patent/EP1405952A3/en
Application granted granted Critical
Publication of EP1405952B1 publication Critical patent/EP1405952B1/en
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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/0007—Base structures; Cellars
    • 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
    • E02D27/48—Foundations inserted underneath existing buildings or constructions

Definitions

  • the present invention relates to a method of constructing a basement beneath an existing building.
  • the method employed to construct a basement beneath an existing building normally comprises the steps of forming, in the ground beneath the building, a number of vertical holes substantially equally spaced along a wall structure of the building; inserting inside each hole a foundation pile smaller in cross section than the hole; pouring building material between each foundation pile and the relative hole to form a foundation pillar; connecting each foundation pillar to the wall structure; and excavating, within the foundation structure defined by the foundation pillars, as required to construct the basement.
  • a method of constructing a basement beneath an existing building having a wall structure defining a useful surface area of the building the method being characterized by comprising the steps of forming a bed at at least part of said useful surface area; connecting said bed to said wall structure; inserting a number of foundation piles through said bed into the ground beneath the bed; locking said foundation piles axially; and excavating about said foundation piles and beneath substantially the whole of said bed to form said basement.
  • Number 1 in Figure 1 indicates as a whole an existing building comprising a wall structure 2 defining a useful surface area 3 of building 1.
  • a horizontal, reinforced concrete bed 4 is constructed at the ground level of building 1, extends inside structure 2, is of substantially the same surface area as surface area 3 in the example shown, and is connected to structure 2 by a number of steel connecting members 5.
  • Bed 4 has a number of selectively arranged through holes 6, each having a longitudinal axis 7 substantially parallel to a vertical direction 8.
  • Each hole 6 is engaged in sliding manner by a tubular guide member 9, which is fitted inside hole 6 substantially coaxially with respective axis 7, and is locked axially in known manner along hole 6 so that a portion 10 projects outwards of hole 6.
  • holes 6 are formed so that each axis 7 forms an angle of 0° to 90° with direction 8.
  • a substantially cylindrical foundation pile 11 is inserted inside each member 9, extends coaxially with respective axis 7, and is fitted in sliding manner to respective member 9 so as to be driven into the ground 12 beneath bed 4 by a known actuating device (not shown) - in the example shown, a hydraulic jack for moving pile 11 in direction 8.
  • a known actuating device not shown
  • a hydraulic jack for moving pile 11 in direction 8.
  • pile 11 is locked axially in direction 8 by a known retaining device (not shown) for fixing pile 11 to member 9.
  • each pile 11 is other than cylindrical in cross section.
  • basement 13 can be completed by constructing a bed (not shown) on surface area 14, and a wall structure (not shown) on the lateral walls of basement 13.
  • each pile 11 has a bottom portion 15 driven into ground 12, a top portion (not shown) housed inside respective member 9, and a free intermediate portion 16 extending between bottom portion 15 and the top portion (not shown) and inside basement 13.
  • each portion 16 of at least some of piles 11 may be provided with a reinforcing jacket (not shown) to form a foundation pillar (not shown) of basement 13, or may be detached from respective bottom portion 15 and the respective top portion (not shown) and removed from basement 13.
  • the method according to the present invention therefore provides for constructing a basement 13 having a relatively extensive useful surface area 14, at least equal to useful surface area 3 of building 1, calls for the use of a relatively small number of foundation piles 11, and is relatively cheap to implement.

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  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Civil Engineering (AREA)
  • Architecture (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Electromagnetism (AREA)
  • Physics & Mathematics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Paleontology (AREA)
  • General Engineering & Computer Science (AREA)
  • Working Measures On Existing Buildindgs (AREA)
  • Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
  • Piles And Underground Anchors (AREA)
  • Conveying And Assembling Of Building Elements In Situ (AREA)

Abstract

A method of constructing a basement (13) beneath an existing building (1), whereby a bed (4) is formed at at least part of a useful surface area (3) of the building (1); the bed (4) is connected to a wall structure (2) of the building (1); a number of foundation piles (11) are inserted through the bed (4) into the ground (12) beneath the bed (4); the foundation piles (11) are fixed to the bed (4); and the ground about the foundation piles (11) and beneath substantially the whole of the bed (4) is excavated to form the basement (13).
Figure 00000001

Description

The present invention relates to a method of constructing a basement beneath an existing building.
In the building industry, the method employed to construct a basement beneath an existing building normally comprises the steps of forming, in the ground beneath the building, a number of vertical holes substantially equally spaced along a wall structure of the building; inserting inside each hole a foundation pile smaller in cross section than the hole; pouring building material between each foundation pile and the relative hole to form a foundation pillar; connecting each foundation pillar to the wall structure; and excavating, within the foundation structure defined by the foundation pillars, as required to construct the basement.
Since, for building reasons, the holes are normally formed in the wall structure of the building, a major drawback of the known method described above lies in the basement having a relatively small useful surface area, and at any rate smaller than that of the building.
It is an object of the present invention to provide a method of constructing a basement beneath an existing building, designed to eliminate the aforementioned drawback, and which is cheap and easy to implement.
According to the present invention, there is provided a method of constructing a basement beneath an existing building having a wall structure defining a useful surface area of the building, the method being characterized by comprising the steps of forming a bed at at least part of said useful surface area; connecting said bed to said wall structure; inserting a number of foundation piles through said bed into the ground beneath the bed; locking said foundation piles axially; and excavating about said foundation piles and beneath substantially the whole of said bed to form said basement.
A non-limiting embodiment of the present invention will be described by way of example with reference to the accompanying drawings, in which:
  • Figure 1 shows a schematic plan view, with parts in section and parts removed for clarity, of an existing building beneath which a basement is constructed using the method according to the present invention;
  • Figures 2 to 4 show a sequence of operating steps in the method according to the present invention.
    • Number 1 in Figure 1 indicates as a whole an existing building comprising a wall structure 2 defining a useful surface area 3 of building 1.
    As shown in Figure 2, a horizontal, reinforced concrete bed 4 is constructed at the ground level of building 1, extends inside structure 2, is of substantially the same surface area as surface area 3 in the example shown, and is connected to structure 2 by a number of steel connecting members 5.
    Bed 4 has a number of selectively arranged through holes 6, each having a longitudinal axis 7 substantially parallel to a vertical direction 8. Each hole 6 is engaged in sliding manner by a tubular guide member 9, which is fitted inside hole 6 substantially coaxially with respective axis 7, and is locked axially in known manner along hole 6 so that a portion 10 projects outwards of hole 6.
    In a variation not shown, holes 6 are formed so that each axis 7 forms an angle of 0° to 90° with direction 8.
    With reference to Figure 3, a substantially cylindrical foundation pile 11 is inserted inside each member 9, extends coaxially with respective axis 7, and is fitted in sliding manner to respective member 9 so as to be driven into the ground 12 beneath bed 4 by a known actuating device (not shown) - in the example shown, a hydraulic jack for moving pile 11 in direction 8. Once driven into the ground 12, pile 11 is locked axially in direction 8 by a known retaining device (not shown) for fixing pile 11 to member 9.
    In variations not shown, each pile 11 is other than cylindrical in cross section.
    At this point, as shown in Figure 4, the ground around piles 11 and beneath substantially the whole of bed 4 is excavated to form, beneath building 1, a basement 13 having a useful surface area 14 at least equal to surface area 3. In the example shown in Figure 4, excavation also extends beneath at least part of structure 2, so that surface area 14 is greater than surface area 3.
    Once the excavation work is completed, basement 13 can be completed by constructing a bed (not shown) on surface area 14, and a wall structure (not shown) on the lateral walls of basement 13.
    Once the excavation work is completed, each pile 11 has a bottom portion 15 driven into ground 12, a top portion (not shown) housed inside respective member 9, and a free intermediate portion 16 extending between bottom portion 15 and the top portion (not shown) and inside basement 13. In this connection, it should be pointed out that each portion 16 of at least some of piles 11 may be provided with a reinforcing jacket (not shown) to form a foundation pillar (not shown) of basement 13, or may be detached from respective bottom portion 15 and the respective top portion (not shown) and removed from basement 13.
    The method according to the present invention therefore provides for constructing a basement 13 having a relatively extensive useful surface area 14, at least equal to useful surface area 3 of building 1, calls for the use of a relatively small number of foundation piles 11, and is relatively cheap to implement.

    Claims (8)

    1. A method of constructing a basement (13) beneath an existing building (1) having a wall structure (2) defining a useful surface area (3) of the building (1), the method being characterized by comprising the steps of forming a bed (4) at at least part of said useful surface area (3); connecting said bed (4) to said wall structure (2); inserting a number of foundation piles (11) through said bed (4) into the ground (12) beneath the bed (4); locking said foundation piles (11) axially; and excavating about said foundation piles (11) and beneath substantially the whole of said bed (4) to form said basement (13).
    2. A method as claimed in Claim 1, wherein said foundation piles (11) are selectively arranged on said bed (4).
    3. A method as claimed in Claim 1 or 2, wherein said basement (13) has a further useful surface area (14) at least equal to said useful surface area (3).
    4. A method as claimed in any one of the foregoing Claims, wherein said excavating step extends beneath said wall structure (2); the basement (13) having a further useful surface area (14) greater than said surface area (3).
    5. A method as claimed in any one of the foregoing Claims, wherein said basement (13) has a further useful surface area (14); a further bed being constructed on at least part of said further useful surface area (14).
    6. A method as claimed in any one of the foregoing Claims, and also comprising the step of constructing a further wall structure of said basement (13).
    7. A method as claimed in any one of the foregoing Claims, and also comprising the step of providing each of at least some of said foundation piles (11) with a respective reinforcing jacket to form a respective foundation pillar of said basement (13).
    8. A method as claimed in any one of the foregoing Claims, wherein, at the end of the excavating step, each foundation pile (11) has a first portion (15) driven into the ground (12), a second portion extending inside said bed (4), and a third portion (16) extending between said first (15) and second portion; the third portion (16) of each of at least some of said foundation piles (11) being detached from the relative said first (15) and second portion, and being removed from said basement (13).
    EP03019069A 2002-08-30 2003-08-22 Method of constructing a basement beneath an existing building Expired - Lifetime EP1405952B1 (en)

    Applications Claiming Priority (2)

    Application Number Priority Date Filing Date Title
    IT000552A ITBO20020552A1 (en) 2002-08-30 2002-08-30 METHOD FOR THE CREATION OF A BASEMENT ROOM UNDER A BUILDING IN WORK.
    ITBO20020552 2002-08-30

    Publications (3)

    Publication Number Publication Date
    EP1405952A2 true EP1405952A2 (en) 2004-04-07
    EP1405952A3 EP1405952A3 (en) 2005-01-26
    EP1405952B1 EP1405952B1 (en) 2009-04-22

    Family

    ID=31986015

    Family Applications (1)

    Application Number Title Priority Date Filing Date
    EP03019069A Expired - Lifetime EP1405952B1 (en) 2002-08-30 2003-08-22 Method of constructing a basement beneath an existing building

    Country Status (6)

    Country Link
    EP (1) EP1405952B1 (en)
    AT (1) ATE429545T1 (en)
    DE (1) DE60327291D1 (en)
    ES (1) ES2325953T3 (en)
    IT (1) ITBO20020552A1 (en)
    PT (1) PT1405952E (en)

    Cited By (2)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    US20120155968A1 (en) * 2010-12-16 2012-06-21 Korea Engineering & Consultant Co., Ltd. Construction method of cellar for building completed
    RU2771359C1 (en) * 2021-10-26 2022-05-04 Александр Николаевич Власов Method for restoring buildings with a ventilated underground after thawing of the foundation soils

    Families Citing this family (1)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    ES2396905B1 (en) * 2011-03-20 2014-05-06 Carlos LOPEZ DE CEBALLOS GARZON PROCEDURE FOR THE EXECUTION OF BASEMENTS BY DESCENDING Slabs IN EXISTING BUILDINGS

    Citations (7)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    GB2047303A (en) * 1979-04-25 1980-11-26 Flowerday L Under-pinning
    GB1603637A (en) * 1977-05-17 1981-11-25 Laing John Services Supporting building structures
    GB2205121A (en) * 1987-05-28 1988-11-30 Roxbury Ltd Underpinning buildings by using, in situ, cast piles
    US4834582A (en) * 1986-01-16 1989-05-30 Roger Bullivant Of Texas, Inc. Methods for underpinning unstable structures
    GB2219021A (en) * 1988-04-27 1989-11-29 Guardian Piling & Foundations Underpinning of a wall
    GB2226347A (en) * 1988-12-20 1990-06-27 Pynford Ltd Under-pinning buildings
    US5433557A (en) * 1993-12-27 1995-07-18 Spencer, White & Prentis Foundation Corporation Method for underpinning an existing footing

    Family Cites Families (1)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    JPS6047413B2 (en) * 1982-01-19 1985-10-22 鉄建建設株式会社 Construction method for constructing a new structure underground below an existing structure and filling material used therein

    Patent Citations (7)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    GB1603637A (en) * 1977-05-17 1981-11-25 Laing John Services Supporting building structures
    GB2047303A (en) * 1979-04-25 1980-11-26 Flowerday L Under-pinning
    US4834582A (en) * 1986-01-16 1989-05-30 Roger Bullivant Of Texas, Inc. Methods for underpinning unstable structures
    GB2205121A (en) * 1987-05-28 1988-11-30 Roxbury Ltd Underpinning buildings by using, in situ, cast piles
    GB2219021A (en) * 1988-04-27 1989-11-29 Guardian Piling & Foundations Underpinning of a wall
    GB2226347A (en) * 1988-12-20 1990-06-27 Pynford Ltd Under-pinning buildings
    US5433557A (en) * 1993-12-27 1995-07-18 Spencer, White & Prentis Foundation Corporation Method for underpinning an existing footing

    Non-Patent Citations (1)

    * Cited by examiner, † Cited by third party
    Title
    PATENT ABSTRACTS OF JAPAN vol. 0072, no. 30 (M-249), 12 October 1983 (1983-10-12) & JP 58 123925 A (TETSUKEN KENSETSU KK), 23 July 1983 (1983-07-23) *

    Cited By (2)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    US20120155968A1 (en) * 2010-12-16 2012-06-21 Korea Engineering & Consultant Co., Ltd. Construction method of cellar for building completed
    RU2771359C1 (en) * 2021-10-26 2022-05-04 Александр Николаевич Власов Method for restoring buildings with a ventilated underground after thawing of the foundation soils

    Also Published As

    Publication number Publication date
    PT1405952E (en) 2009-07-27
    ATE429545T1 (en) 2009-05-15
    DE60327291D1 (en) 2009-06-04
    ES2325953T3 (en) 2009-09-25
    ITBO20020552A1 (en) 2004-02-29
    EP1405952B1 (en) 2009-04-22
    EP1405952A3 (en) 2005-01-26

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