US3757528A - Method for producing a bearing pile of reinforced concrete - Google Patents

Method for producing a bearing pile of reinforced concrete Download PDF

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Publication number
US3757528A
US3757528A US00289879A US3757528DA US3757528A US 3757528 A US3757528 A US 3757528A US 00289879 A US00289879 A US 00289879A US 3757528D A US3757528D A US 3757528DA US 3757528 A US3757528 A US 3757528A
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US
United States
Prior art keywords
pressure member
bore hole
steel pressure
filling material
steel
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.)
Expired - Lifetime
Application number
US00289879A
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English (en)
Inventor
U Finsterwalder
K Finsterwalder
T Herbst
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.)
Walter Bau AG
Original Assignee
Dyckerhoff and Widmann AG
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 Dyckerhoff and Widmann AG filed Critical Dyckerhoff and Widmann AG
Application granted granted Critical
Publication of US3757528A publication Critical patent/US3757528A/en
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Expired - Lifetime legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
    • E02D5/22—Piles
    • E02D5/34—Concrete or concrete-like piles cast in position ; Apparatus for making same
    • E02D5/36—Concrete or concrete-like piles cast in position ; Apparatus for making same making without use of mouldpipes or other moulds
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
    • E02D5/22—Piles
    • E02D5/34—Concrete or concrete-like piles cast in position ; Apparatus for making same
    • E02D5/46—Concrete or concrete-like piles cast in position ; Apparatus for making same making in situ by forcing bonding agents into gravel fillings or the soil
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
    • E02D5/22—Piles
    • E02D5/62—Compacting the soil at the footing or in or along a casing by forcing cement or like material through tubes

Definitions

  • ABSTRACT Method for producing a bearing pile of steel reinforced concrete in a bore hole where armoring is placed in the bore hole which is filled with hardening material such as concrete and where the armoring is a steel pressure element of compact, particularly, round cross-section provided with profiling on its surface to increase the adhesion between the filling material and where after setting, but prior to hardening the filling material is impregnated with cement sludge or grouting through an apertured conduit that is disposed between the steel pressure member and the wall of the bore hole.
  • the invention relates to the production of piles used for supporting building structures. More in particular, the invention relates to a method for producing bearing piles of reinforced concrete where first a bore hole is made into which armoring is placed, and then the bore hole is filled with a hardening material such as concrete, cement mortar or the like.
  • piles or stakes which are in finished condition rammed, pressed or flushed into the subsoil and which can be subjected to loads immediately, and stationary piles which are produced in situ in a hollow space prepared in the ground and require a certain hardening time prior to being subjected to the load.
  • the invention relates to bore piles made of steel reinforced. concrete, i.e., piles for which the hollow space is produced by boring and is subsequently filled with concrete.
  • root piles These are considered bore piles having a small thickness, up to about inches, the bore holes of which can be produced by the boring method with relatively simple boring tools. Armoring is placed in the bore holes; then during withdrawing of the boring pipe the concrete is filled in in steps and is compressed with compressed air. By these means a'good connection is obtained between the concrete and the ground, and high compression of the hard core filling is obtained.
  • the concrete cross-section of these root piles is so much reduced that the pile strength necessarily remains low.
  • the pile strength cannot be essentially increased by strengthening the armoring, because the conventional armoring cages cannot be optionally strengthened due to the small bore hole diameter, without causing installation difficulties. Heavy loads can only be achieved with a small bore hole diameter if considerably higher pressures can be effected in the cross-section of the pile.
  • a'steel pressure element is used as armoring which has a compact, particularly a round, cross section and which is provided at its surface with profiling in order to increase the adhesion with the fillmaterial, and after setting but before the hardening of the fill material, a compressed body is produced by single or multiple injection of compressing material, for example cement grouting, through compression conduits having compression openings reaching into the depth of the bore hole which material extends over the entire or the greatest part of the length of the steel pressure member.
  • compressing material for example cement grouting
  • the admixture of mineral or plastic fiber to the filling material for the filling of the bore hole results after setting of the fill in an improvement of the combiningv characteristics between filling material and the steel pressure member by increasing the annular tensional forces. Thereby also the filling material between the steel pressure member and the wall of the bore hole can be relied on as a supporting aid.
  • a steel pressure member which consists of a known armoring rod which is provided with hot rolled ribs disposed along a helical line.
  • a force distributing plate may be provided as a connection with the foundation body.
  • the connection may also be by way of a butt connection.
  • the steel pressure member may also be butted within the pile in one or several locations.
  • a pressure pile having greatcarrying strength made in accordance with the method of the invention is in many respects superior to the known bore piles. Besidesthe advantages already mentioned, it may be used to particular advantage, due to its simple anchoring possibilities, when a steel is employed that has a thread extending over its entire length, for alternate loads combined of tension and pressure, which plays a considerable role in connection with most foundations. Finally, in groups of piles, piles may be pre-loaded in simplest manner in that the neighboring piles are subjected to pull or tension. Such a reversal of the load is not possible with known piles. Finally, the thread makes it possible, for example, when foundations rise, to set the foundation by way of the thread to any desired levelling value or factor.
  • FIG. 1 is a sectional view of a bearing pile in accordance with the invention.
  • FIG. 2 illustrates the upper part of the bearing pile in an enlarged section.
  • a steel pressure member 3 In a bore hole 1 surrounded by filling material 2, for example, concrete or cement mortar, there is disposed a steel pressure member 3.
  • the steelpressure member 3 is located centrally in the bore hole and is secured in this position by spacers (not illustrated).
  • it consists of a single armoring rod which is provided on its surface with profiling in the form of hot rolled ribs disposed along a helix. These ribs constitute a thread upon which an anchoring or connection element which has a corresponding counter thread may be threadedly mounted.
  • the pressure member 3 consists of two rods which are abutted by a threaded sleeve 4.
  • the steel pressure member 3 may also be composed of several individual rods which during installation are combined to form a unit.
  • a compressing conduit 5 reaches down into the depth of the bore hole 1 which is installed simultaneously with the compression member 3.
  • the compressing conduit 5 is in the form of an annular conduit having an entrance opening 6 and a discharge opening 7 and is provided over the entire length of the compression member with compressing apertures 8.
  • the annular conduit it is also possible to provide a pipe or a similar device, which in any event must be so constructed that due to the pressure injecting of compression material, for example cement grouting, in several successive working operations under high pressure into the compressing conduit in individual sections along the pile or the entire length of the pile, so that compressed material is introduced and the surrounding ground is consolidated and is partly also injected
  • the compression apertures'8 are provide with valves for this purpose.
  • the bore hole 1 is first produced by means of a conventional method adapted to the existing ground conditions;then the steel pressure member 3 is inserted together with the compression conduit 5, and the fill material 2 is introduced. After setting, but before hardening of the fill material 2, a compression material, for example, cement grouting, is pressed in at high pressure after injection into the compression conduit 5, and that either through the entrance opening 6 while the discharge opening 7 is closed, or throughboth openings.
  • a compression material for example, cement grouting
  • connection of the building structure or of the foundation body to the steel compression member 3 may also be effected by a pressure distributing plate 9, which has an extenion provided with an internal thread which can be threaded onto the thread of the steel pres sure member 3.
  • the connection may also be effected in an analogous manner by way of abutment connections or by friction adhesion along the part of the pressure member that extends above the pile.
  • a further use of the method in accordance with the invention is also afforded with the sinking of well or spring foundations having open caissons. Frequently they must be founded in strong rock, which in excess water pressure was heretofore only possible by means of air pressure caissons. If for foundations pressure piles are used that are made in accordance with the invention, these may take over the anchoring in the rock in that they elongate the caisson wall into the rock, as it were, by points, without it being necessary that the caisson actually has to reach the edge of the rock.
  • the anchoring of the pressure rods in the rock as in the caisson wall is effected in accordance with the invention by injection of cement grouting with the compression conduits mentioned above.
  • Method for producing a bearing pile of steel reinforced concrete comprising the steps of producing a bore hole, placing into said bore hole armoring in the form of a steel pressure member having a compact, particularly round cross-section with profiling at its surface to increase the adhesion with filling material, placing compressing conduit in said bore hole between said steel pressure member and the walls of the bore hole, pouring filling material such as cement mortar into said bore hole around said steel pressure member and said compressing conduit, and after setting and before hardening of the filling material, forcing compression material, such as cement grouting or sludge, through said compressing conduit into the filling material to constitute a compressed body extending around and substantially over the length of the steel pressure member.
  • filling material includes fibrous substances such as mineral or plastic fibers.
  • Bearing pile of steel reinforced concrete constructed in a bore hole comprising armoring in the form of a steel pressure member in said bore hole, said steel pressure member having compact, particularly round cross-section with profiling at its surface, a compressing conduit in said bore hole between said steel pressure member and the walls of the bore hole, filling material such as cement mortar disposed around said steel pressure member and said compressing conduit and said filling material having cement grouting or sludge injected therein.
  • steel pressure member is an armoring rod having ribs disposed along a helical line.
  • Bearing pile in accordance with claim 4 having a pressure distributing plate mounted on the top of said steel pressure member.

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  • Engineering & Computer Science (AREA)
  • Structural 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)
  • Piles And Underground Anchors (AREA)
US00289879A 1971-09-21 1972-09-18 Method for producing a bearing pile of reinforced concrete Expired - Lifetime US3757528A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2147051A DE2147051A1 (de) 1971-09-21 1971-09-21 Verfahren zum herstellen eines druckpfahles im boden

Publications (1)

Publication Number Publication Date
US3757528A true US3757528A (en) 1973-09-11

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ID=5820144

Family Applications (1)

Application Number Title Priority Date Filing Date
US00289879A Expired - Lifetime US3757528A (en) 1971-09-21 1972-09-18 Method for producing a bearing pile of reinforced concrete

Country Status (8)

Country Link
US (1) US3757528A (de)
AT (1) AT335922B (de)
CA (1) CA958236A (de)
CH (1) CH549133A (de)
DE (1) DE2147051A1 (de)
FR (1) FR2153956A5 (de)
IT (1) IT974954B (de)
NL (1) NL152950B (de)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4861197A (en) * 1987-06-15 1989-08-29 Jennmar Corporation Roof bolt system
EP0369591A1 (de) * 1988-11-16 1990-05-23 Halliburton Company Verfahren zur Zementierung von Plattformbeinen
US5465535A (en) * 1991-07-01 1995-11-14 Soilex Ab Method of installing a soil anchor and a soil anchor
US6012874A (en) * 1997-03-14 2000-01-11 Dbm Contractors, Inc. Micropile casing and method
US6058662A (en) * 1997-07-18 2000-05-09 Secure Products, Llc Earth anchors and methods for their use
US6578342B2 (en) 2001-06-19 2003-06-17 Paul Milan Faynor Barrier cable end bracket assembly
US20040016200A1 (en) * 2002-07-24 2004-01-29 Fyfe Co., Llc. Anchor and method for reinforcing a structure
US20070175136A1 (en) * 2006-01-17 2007-08-02 Knepp Wayne A Poured concrete column hole
US7360315B2 (en) 2006-01-17 2008-04-22 Morton Buildings Poured concrete column alignment and plumbing tool
US8511043B2 (en) 2002-07-24 2013-08-20 Fyfe Co., Llc System and method of reinforcing shaped columns
US20130279991A1 (en) * 2010-12-17 2013-10-24 Sika Technology Ag Formwork element
CN104652408A (zh) * 2015-02-13 2015-05-27 福建省建专岩土工程有限公司 条形砂袋桩及其施工方法
US11530534B2 (en) 2018-03-15 2022-12-20 Daysh Developments, Inc. Dry-stack masonry wall supported on hollow piles

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0014728B1 (de) * 1979-02-26 1982-12-22 Günter Joly Hohler Verpressdübel
DE3425941A1 (de) * 1984-07-13 1986-01-23 Stump Bohr Gmbh, 8045 Ismaning Erdanker und erdpfahl

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE970760C (de) * 1954-04-28 1958-10-23 Walter Friedel Dr Ing Verfahren zur Herstellung von Betonpfaehlen im Erdreich durch Auspressen der mit Zuschlagstoffen gefuellten abgeteuften Bohrung mit Zementmilch od. dgl. unter schrittweiser Zuruecknahme des Pressrohres
US3312035A (en) * 1961-01-19 1967-04-04 Tor Isteg Steel Corp Reinforcing bar
US3717966A (en) * 1970-01-30 1973-02-27 Stump Bohr Ag Anchor tie construction and method of setting an anchor tie in the ground

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE970760C (de) * 1954-04-28 1958-10-23 Walter Friedel Dr Ing Verfahren zur Herstellung von Betonpfaehlen im Erdreich durch Auspressen der mit Zuschlagstoffen gefuellten abgeteuften Bohrung mit Zementmilch od. dgl. unter schrittweiser Zuruecknahme des Pressrohres
US3312035A (en) * 1961-01-19 1967-04-04 Tor Isteg Steel Corp Reinforcing bar
US3717966A (en) * 1970-01-30 1973-02-27 Stump Bohr Ag Anchor tie construction and method of setting an anchor tie in the ground

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4861197A (en) * 1987-06-15 1989-08-29 Jennmar Corporation Roof bolt system
EP0369591A1 (de) * 1988-11-16 1990-05-23 Halliburton Company Verfahren zur Zementierung von Plattformbeinen
US5465535A (en) * 1991-07-01 1995-11-14 Soilex Ab Method of installing a soil anchor and a soil anchor
US6012874A (en) * 1997-03-14 2000-01-11 Dbm Contractors, Inc. Micropile casing and method
US6058662A (en) * 1997-07-18 2000-05-09 Secure Products, Llc Earth anchors and methods for their use
US6578342B2 (en) 2001-06-19 2003-06-17 Paul Milan Faynor Barrier cable end bracket assembly
US8511043B2 (en) 2002-07-24 2013-08-20 Fyfe Co., Llc System and method of reinforcing shaped columns
US20040016200A1 (en) * 2002-07-24 2004-01-29 Fyfe Co., Llc. Anchor and method for reinforcing a structure
US7207149B2 (en) * 2002-07-24 2007-04-24 Fyfe Edward R Anchor and method for reinforcing a structure
US20070175136A1 (en) * 2006-01-17 2007-08-02 Knepp Wayne A Poured concrete column hole
US7735273B2 (en) 2006-01-17 2010-06-15 Morton Buildings Poured concrete column hole
US7360315B2 (en) 2006-01-17 2008-04-22 Morton Buildings Poured concrete column alignment and plumbing tool
US20130279991A1 (en) * 2010-12-17 2013-10-24 Sika Technology Ag Formwork element
US9127433B2 (en) * 2010-12-17 2015-09-08 Sika Technology Ag Formwork element
CN104652408A (zh) * 2015-02-13 2015-05-27 福建省建专岩土工程有限公司 条形砂袋桩及其施工方法
CN104652408B (zh) * 2015-02-13 2016-04-13 福建省建专岩土工程有限公司 条形砂袋桩及其施工方法
US11530534B2 (en) 2018-03-15 2022-12-20 Daysh Developments, Inc. Dry-stack masonry wall supported on hollow piles

Also Published As

Publication number Publication date
ATA803072A (de) 1976-07-15
IT974954B (it) 1974-07-10
CH549133A (de) 1974-05-15
AT335922B (de) 1977-04-12
NL7212275A (de) 1973-03-23
DE2147051A1 (de) 1973-04-05
CA958236A (en) 1974-11-26
NL152950B (nl) 1977-04-15
FR2153956A5 (de) 1973-05-04

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