US3815368A - Method for installing concrete anchor piles in situ - Google Patents

Method for installing concrete anchor piles in situ Download PDF

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US3815368A
US3815368A US00380917A US38091773A US3815368A US 3815368 A US3815368 A US 3815368A US 00380917 A US00380917 A US 00380917A US 38091773 A US38091773 A US 38091773A US 3815368 A US3815368 A US 3815368A
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overburden
pile body
cavity
pile
extent
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L Turzillo
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Priority to GB935074A priority patent/GB1429107A/en
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    • 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
    • E02D5/74—Means for anchoring structural elements or bulkheads
    • E02D5/76—Anchorings for bulkheads or sections thereof in as much as specially adapted therefor
    • 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
    • E02D5/54—Piles with prefabricated supports or anchoring parts; Anchoring piles

Definitions

  • 3,541,798 shows such an arrangement in which a tie-back rod extends at an angle to the horizontal centrally through a cavity drilled through the overburden, to be anchored in a concrete base or anchor'pile in the underlayer below the overburden.
  • the method of the present invention has particular utility for producing an anchor pile in an earth situs, as foranchoring a vertical retaining wall against movement of an overburden.
  • a hollow shafted auger may be drilled into the situs at a downward incline with reference to the retaining wall, and at a substantial angle to a slippage plane of the overburden, for example, to form a cavity of predetermined depth in the earth retained by the wall.
  • the auger is withdrawn from the cavity while replacing the removed earth with fluid, self-hardenable, cementitious material to form a pile body having an elongated tension element or anchor rod positioned centrally there through as for anchoring attachment to the wall.
  • a suitable hollow shafted auger is screwed into said body to remove an axially centered core of the cementitious material therefrom and to form a second cavity with a substantial extent of the anchor rod exposed within the cavity.
  • the retained cementitious material including at least a small thickness thereof adhered to or within the wall of the original cavity, is allowed to become set or at least partially hardened.
  • the earthern wall of the original cavity will be protected by a thickness of cementitious material of sufficient consistency to prevent'ingress of the sur rounding earth into the second cavity around the rod, and thereby to obviate any chance of the overburden applying unwanted radial tension to the rod.
  • a selective extent of the anchor'rod within the redrilled cavity may be removed, as by disconnection of the rod at a screw threaded coupling or joint at a preselected depth in the cavity, thereby to facilitate removal of overburden above a given level upon completion of the work which required provision of the retaining wall in the first place.
  • a general object of the invention is to provide an improved method for installing a tie-back pile in an earth situs, as for affixing an earthretaining wall against movement of an overburden in an earth situs, in a man ner by which the overburden is prevented from apply? ing damaging radial tension to a tie-rod extending between the pile and the retaining wall.
  • Another object of the invention is to provide a method for installing a tie-back anchoring pile in a
  • FIG. I is a vertical crosssection, partly broken away, through an earth situs and illustrating a com pleted step of the improved method by which a hollowshafted auger has been screwed into an earth situs to define a cavity of requisite depth for installing a rod-reinforced concrete pile, or an anchor-pile, as for anchoring an earth retaining wall.
  • FIG. 2 is a view corresponding to FIG. 11, in which the auger has been operated first to remove the augered earth from the cavity, and then to fill the cavity with fluid cement mortar for forming a concrete pile body with an anchor rod centered therein.
  • FIG. 3 is a view corresponding to FIG. 2, illustrating a further step of rotating the same or a different auger through an upper axial extent of formed pile body while the mortar is still in partly set, but relatively fluid con- I sistency, andotherwiseoperated to form a new cavity of like extent with the reinforcing rod therein.
  • FIG. 4 is a view corresponding to FIG. 3, showing the completed anchor pile, in which the rod is anchored to the retained inner extent of now solid concrete pile, with the outer end of the rod affixed to a tension applying device secured to the retaining wall to hold the freely centered same in place.
  • FIG. 1 of the drawings there is illustrated earth drilling equipment 10, of .known type such as disclosed in Turzillo U.S. Pat. No. 3,464,216 and by which a hollow shafted auger 111 has been passed through an aperture means 12 in a vertical earth retaining wall 13, and selectively rotated into the earth S behind the wall, thereby to define a first cavity 14 of predetermined depth or extent presented at a downward angle to the vertical plane of the retaining wall, and to a substantial inward depth beyond a soil slippage plane P.
  • a tension rod 15, centered within a hollow shaft 16 of the auger may be associated with a bit or other suitable closure member 17, releasably attached to the inner end of the auger as shown in FIG.
  • the rod 15 may be of a type adapted to be axially manipulated to knock the bit v 17 from the auger shaft, in the manner disclosed in pumped into the cavity, from the lower end of the auger, to replace the earth removed from the cavity in timed relationship with progressive withdrawal of the auger until the cavity is filled with cement mortar around the rod and then the auger is fully withdrawn, whereby a pile body 20 is initially formed with the rod centered through the same, as shown in FIG. 2.
  • the same or a different hollow-shafted auger of smaller diameter may be screwed axially into said pile body to define a new cavity or hole 14a of the same or reduced diameter, which is thereby lined with a thickness or layer 22 of the aforesaid cement mortar adapted to set in due course, after removal of the newly inserted auger.
  • the layer 22, upon becoming at least partially hardened or set, serves to prevent ingress of the overburden into the new cavity 14a and thereby obviates tensional restraint which would otherwise be applied to the portion of the tension rod presented above the slippage plane.
  • the upper extent 15a of the rod 15 may be removed, as by unscrewing the same at the coupling 24, located just above the anchoring pile portion a of the pile 20 retained below the slippage plane P. Removal of the upper part 15a of the'rod '15 in this manner makes it possible to excavate earth to any desired level above the retained portion 20a of the anchor pile 20, after the retaining wall 13 has served its purpose and is no longer needed at the situs. After said removal of the rod part 15a the redrilled hole 14a may be filled with earth or other loose material, thereby to provide additional support of the overburden prior to said removal of the retaining wall 13, for example.
  • a method as for producing an anchor pile in an earth situs such as in a location including an overburden comprising; forming a reinforced pile body of fluid, self-hardening cementitious material in a pile cavity extending through the overburden and into the situs inwardly of the overburden, with at least one elongated tension element extending through the formed pile body; screwing a hollow-shafted auger about said at least one element and into the formed pile body while the cementitious material thereof isin set, but somewhat unhardened, penetrable condition, thereby to define a new cavity therein through which a part of said at least one element extends substantially-freely of the overburden; and allowing the remainder of the formed pile body extending inwardly of the new cavity to harden, with an inner extent of said element anchored in said hardened remainder of the pile body.
  • said at least one element is rigid and includes a selectively removable extent thereof freely presented within the new cavity, and wherein the steps of the method include removal of at least a part of the free extent of therigid element from said anchored inner extent thereof.
  • a method of producing an anchor pile in an earth situs such as in a location including an overburden comprising the steps of: screwing a hollow-shafted auger into the situs to predetermined depth and loca' tion to define a cavity therein passing through the overburden, by removal of the augered material; progressively withdrawing the auger from said cavity and replacing the removed material with fluid, selfhardenable cementitious material to form a pile body with an elongated rigid tension element positioned lengthwise therein said pile body extending through the overburden and into the situs inwardly of the overburden; screwing a hollow-shafted auger about said element and into the formed pile body while the cementitious material thereof is in unhardened, pentrable condition, thereby to form a new cavity around the rigid element in the area of the overburden; and allowing the remainder of the formed pile body extending inwardly of said new cavity to harden, and thereby anchor said rigid element thereto with an outer extent of the rigid tension element above said area of

Abstract

Method for placing anchor pile, as for bracing an earth retaining wall, includes an anchor rod axially centered in a bore augered in an earth situs at a location including an overburden of loose earth held against movement along an inclined slippage plane by a retaining wall. An auger drill is progressively withdrawn from the bore while fluid hydraulic cement mortar is pumped through auger shaft to form a pile in the bore, to requisite extents above and below slippage plane, with a tie-back rod axially centered therein. While mortar in the bore is in partially set, but still somewhat soft condition, a hollow shafted auger is operated to drill a new hole in the formed pile, along central axis thereof, to adjacent slippage plane. Upon substantial hardening of the remainder of the formed pile, the portion of centered rod extending freely above the slippage plane will not be under any substantial degree of radial tension, which otherwise would have been applied by the overburden. A part of rod located in hole extending above the slippage plane is adapted to be selectively detached from the retained portion of the formed pile at point in the redrilled cavity, as for the purpose of subsequent removal of overburden to a selective lower level.

Description

ENTEDJun H mm 3.815368 sum 2 BF 4 3815368 SHEET km 4 PATENTEDJUH 1 1 m4 A A E 6 PILES IN SITU BACKGROUND OF INVENTION Heretofore, tie-backs have been placed in situ, as for shoring a retaining wall defining a lateral face for an excavation, to extend through an earthen overburden retained by'the retaining wall to be anchored by a concrete anchor pile underlying the overburden. Schnable U.S. Pat. No. 3,541,798, for example, shows such an arrangement in which a tie-back rod extends at an angle to the horizontal centrally through a cavity drilled through the overburden, to be anchored in a concrete base or anchor'pile in the underlayer below the overburden. There is no provision, in the Schnable disclosure of means or mode for ultimate removal of the rod from the base or anchor pile while the overbur' den is retained in the situs, and no means is shown or suggested for preventing the overburden at least along the slippage plane from applying substantial radial tension to the anchor rod, adversely to reduce the amount of tensional restraint that can be applied to the tie-back rod for retaining the shoring in requisite fixed conditiori. I
SUMMARY OF INVENTION The method of the present invention has particular utility for producing an anchor pile in an earth situs, as foranchoring a vertical retaining wall against movement of an overburden. For this purpose a hollow shafted auger may be drilled into the situs at a downward incline with reference to the retaining wall, and at a substantial angle to a slippage plane of the overburden, for example, to form a cavity of predetermined depth in the earth retained by the wall. Next, the auger is withdrawn from the cavity while replacing the removed earth with fluid, self-hardenable, cementitious material to form a pile body having an elongated tension element or anchor rod positioned centrally there through as for anchoring attachment to the wall..While the formed pile body is in set but still penetrable condition a suitable hollow shafted auger is screwed into said body to remove an axially centered core of the cementitious material therefrom and to form a second cavity with a substantial extent of the anchor rod exposed within the cavity. Thereafter, the retained cementitious material, including at least a small thickness thereof adhered to or within the wall of the original cavity, is allowed to become set or at least partially hardened. In other words, the earthern wall of the original cavity will be protected by a thickness of cementitious material of sufficient consistency to prevent'ingress of the sur rounding earth into the second cavity around the rod, and thereby to obviate any chance of the overburden applying unwanted radial tension to the rod. A selective extent of the anchor'rod within the redrilled cavity may be removed, as by disconnection of the rod at a screw threaded coupling or joint at a preselected depth in the cavity, thereby to facilitate removal of overburden above a given level upon completion of the work which required provision of the retaining wall in the first place.
A general object of the invention is to provide an improved method for installing a tie-back pile in an earth situs, as for affixing an earthretaining wall against movement of an overburden in an earth situs, in a man ner by which the overburden is prevented from apply? ing damaging radial tension to a tie-rod extending between the pile and the retaining wall.
Another object of the invention is to provide a method for installing a tie-back anchoring pile in a The foregoing and other objects of the invention will be manifest from the following brief description and the accompanying drawings. Of the accompanying drawings:
FIG. I, is a vertical crosssection, partly broken away, through an earth situs and illustrating a com pleted step of the improved method by which a hollowshafted auger has been screwed into an earth situs to define a cavity of requisite depth for installing a rod-reinforced concrete pile, or an anchor-pile, as for anchoring an earth retaining wall.
FIG. 2 is a view corresponding to FIG. 11, in which the auger has been operated first to remove the augered earth from the cavity, and then to fill the cavity with fluid cement mortar for forming a concrete pile body with an anchor rod centered therein.
FIG. 3 is a view corresponding to FIG. 2, illustrating a further step of rotating the same or a different auger through an upper axial extent of formed pile body while the mortar is still in partly set, but relatively fluid con- I sistency, andotherwiseoperated to form a new cavity of like extent with the reinforcing rod therein.
FIG. 4 is a view corresponding to FIG. 3, showing the completed anchor pile, in which the rod is anchored to the retained inner extent of now solid concrete pile, with the outer end of the rod affixed to a tension applying device secured to the retaining wall to hold the freely centered same in place.
Referring first to FIG. 1 of the drawings, there is illustrated earth drilling equipment 10, of .known type such as disclosed in Turzillo U.S. Pat. No. 3,464,216 and by which a hollow shafted auger 111 has been passed through an aperture means 12 in a vertical earth retaining wall 13, and selectively rotated into the earth S behind the wall, thereby to define a first cavity 14 of predetermined depth or extent presented at a downward angle to the vertical plane of the retaining wall, and to a substantial inward depth beyond a soil slippage plane P. In this step of the method a tension rod 15, centered within a hollow shaft 16 of the auger, may be associated with a bit or other suitable closure member 17, releasably attached to the inner end of the auger as shown in FIG. 1, or as disclosed in Turzillo U.S. Pat. No. 3,354,657 as an example, or the rod 15 may be of a type adapted to be axially manipulated to knock the bit v 17 from the auger shaft, in the manner disclosed in pumped into the cavity, from the lower end of the auger, to replace the earth removed from the cavity in timed relationship with progressive withdrawal of the auger until the cavity is filled with cement mortar around the rod and then the auger is fully withdrawn, whereby a pile body 20 is initially formed with the rod centered through the same, as shown in FIG. 2.
While the initially formed pile body 20 is in somewhat partially set, but unhardened condition, the same or a different hollow-shafted auger of smaller diameter may be screwed axially into said pile body to define a new cavity or hole 14a of the same or reduced diameter, which is thereby lined with a thickness or layer 22 of the aforesaid cement mortar adapted to set in due course, after removal of the newly inserted auger. The layer 22, upon becoming at least partially hardened or set, serves to prevent ingress of the overburden into the new cavity 14a and thereby obviates tensional restraint which would otherwise be applied to the portion of the tension rod presented above the slippage plane.
Upon eventual removal of the retaining wall, the upper extent 15a of the rod 15 may be removed, as by unscrewing the same at the coupling 24, located just above the anchoring pile portion a of the pile 20 retained below the slippage plane P. Removal of the upper part 15a of the'rod '15 in this manner makes it possible to excavate earth to any desired level above the retained portion 20a of the anchor pile 20, after the retaining wall 13 has served its purpose and is no longer needed at the situs. After said removal of the rod part 15a the redrilled hole 14a may be filled with earth or other loose material, thereby to provide additional support of the overburden prior to said removal of the retaining wall 13, for example.
Modifications of the invention may be resorted to without departing from the spirit thereof, or the scope of the appended claims.
What is claimed is:
l. A method as for producing an anchor pile in an earth situs such as in a location including an overburden, comprising; forming a reinforced pile body of fluid, self-hardening cementitious material in a pile cavity extending through the overburden and into the situs inwardly of the overburden, with at least one elongated tension element extending through the formed pile body; screwing a hollow-shafted auger about said at least one element and into the formed pile body while the cementitious material thereof isin set, but somewhat unhardened, penetrable condition, thereby to define a new cavity therein through which a part of said at least one element extends substantially-freely of the overburden; and allowing the remainder of the formed pile body extending inwardly of the new cavity to harden, with an inner extent of said element anchored in said hardened remainder of the pile body.
2. A method as in claim 1, wherein said at least one element is rigid and includes a selectively removable extent thereof freely presented within the new cavity, and wherein the steps of the method include removal of at least a part of the free extent of therigid element from said anchored inner extent thereof.
3. A method as in claim 2, wherein at least some of said overburden, above the hardened remainder of the pile body, is removed after-said removal of the free extent of the rigid element.
4. A method of producing an anchor pile in an earth situs such as in a location including an overburden, comprising the steps of: screwing a hollow-shafted auger into the situs to predetermined depth and loca' tion to define a cavity therein passing through the overburden, by removal of the augered material; progressively withdrawing the auger from said cavity and replacing the removed material with fluid, selfhardenable cementitious material to form a pile body with an elongated rigid tension element positioned lengthwise therein said pile body extending through the overburden and into the situs inwardly of the overburden; screwing a hollow-shafted auger about said element and into the formed pile body while the cementitious material thereof is in unhardened, pentrable condition, thereby to form a new cavity around the rigid element in the area of the overburden; and allowing the remainder of the formed pile body extending inwardly of said new cavity to harden, and thereby anchor said rigid element thereto with an outer extent of the rigid tension element above said area of overburden substantially free from tensional restraint.
5. A method as in claim 4 wherein said rigid element is selectively releasably jointed at a point within saidv new cavity for removal of an outer extent of the element.
6. A method as in claim 5, wherein said outer extent.
remainder of the formed pile body after removal of said outer extent of the rigid element.

Claims (7)

1. A method as for producing an anchor pile in an earth situs such as in a location including an overburden, comprising; forming a reinforced pile body of fluid, self-hardening cementitious material in a pile cavity extending through the overburden and into the situs inwardly of the overburden, with at least one elongated tension element extending through the formed pile body; screwing a hollow-shafted auger about said at least one element and into the formed pile body while the cementitious material thereof is in set, but somewhat unhardened, penetrable condition, thereby to define a new cavity therein through which a part of said at least one element extends substantially freely of the overburden; and allowing the remainder of the formed pile body extending inwardly of the new cavity to harden, with an inner extent of said element anchored in said hardened remainder of the pile body.
2. A method as in claim 1, wherein said at least one element is rigid and includes a selectively removable extent thereof freely presented within the new cavity, and wherein the steps of the method include removal of at least a part of the free extent of the rigid element from said anchored inner extent thereof.
3. A method as in claim 2, wherein at least some of said overburden, above the hardened remainder of the pile body, is removed after said removal of the free extent of the rigid element.
4. A method of producing an anchor pile in an earth situs such as in a location including an overburden, comprising the steps oF: screwing a hollow-shafted auger into the situs to predetermined depth and location to define a cavity therein passing through the overburden, by removal of the augered material; progressively withdrawing the auger from said cavity and replacing the removed material with fluid, self-hardenable cementitious material to form a pile body with an elongated rigid tension element positioned lengthwise therein said pile body extending through the overburden and into the situs inwardly of the overburden; screwing a hollow-shafted auger about said element and into the formed pile body while the cementitious material thereof is in unhardened, pentrable condition, thereby to form a new cavity around the rigid element in the area of the overburden; and allowing the remainder of the formed pile body extending inwardly of said new cavity to harden, and thereby anchor said rigid element thereto with an outer extent of the rigid tension element above said area of overburden substantially free from tensional restraint.
5. A method as in claim 4 wherein said rigid element is selectively releasably jointed at a point within said new cavity for removal of an outer extent of the element.
6. A method as in claim 5, wherein said outer extent of the rigid element is removed after said remainder of the formed pile body, inwardly of said new cavity, has hardened.
7. A method as in claim 6, including the step of removing at least some of said overburden overlying said remainder of the formed pile body after removal of said outer extent of the rigid element.
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CA191,440A CA961283A (en) 1973-07-19 1974-01-31 Method for installing concrete anchor piles in situ
GB935074A GB1429107A (en) 1973-07-19 1974-03-01 Method for installing concrete anchor piles in situ
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US3886754A (en) * 1973-07-27 1975-06-03 Lee A Turzillo Method of extending augered pile cavity through rock or like obstruction
US3999391A (en) * 1975-06-12 1976-12-28 Meredith Drilling Co., Inc. Tie-back anchor components and method for a shoring system
US4036026A (en) * 1974-07-05 1977-07-19 Kabushiki Kaisha Takechi Koumusho Method and apparatus for establishing an anchor
US4055051A (en) * 1976-01-08 1977-10-25 The United States Of America As Represented By The Secretary Of The Interior Unitary drill bit and roof bolt
US4253781A (en) * 1979-03-08 1981-03-03 Philipp Holzmann Aktiengesellschaft Method and an apparatus for providing a grouted anchorage against hydrostatic pressure
US4718791A (en) * 1985-11-15 1988-01-12 Schnabel Foundation Company High capacity tieback installation method
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US6588986B1 (en) * 1999-09-23 2003-07-08 Forasol International Sa Device for drilling and anchoring and process for placing grout anchors
US6672806B2 (en) 2000-11-22 2004-01-06 Forasol International Sa Device for drilling and anchoring and process for placing grout anchors
US6793445B1 (en) * 1999-03-31 2004-09-21 Paul Charlton Method and apparatus for insertion of rock bolts
US6908258B2 (en) 2003-07-11 2005-06-21 James E. Timmerman Methods and apparatus for maintaining seawalls
US20050232700A1 (en) * 2003-07-11 2005-10-20 Timmerman James E Methods, systems and apparatus for maintaining seawalls
US20080083565A1 (en) * 2005-02-28 2008-04-10 Roussy Raymond J Method of geothermal loop installation
US20090065255A1 (en) * 2005-02-28 2009-03-12 Roussy Raymond J Method and system for installing geothermal transfer apparatuses with a sonic drill
US20090211811A1 (en) * 2008-02-22 2009-08-27 Roussy Raymond J Method and system for installing geothermal transfer apparatuses with a sonic drill and a removable or retrievable drill bit
WO2009103149A1 (en) * 2008-02-22 2009-08-27 Roussy Raymond J A method and system for installing geothermal heat exchangers, energy piles, concrete piles, micropiles, and anchors using a sonic drill and a removable or retrievable drill bit
US20100040419A1 (en) * 2005-02-28 2010-02-18 Roussy Raymond Method and system for installing micropiles with a sonic drill
US20100155141A1 (en) * 2005-02-28 2010-06-24 Roussy Raymond Method and system for installing geothermal transfer apparatuses with a sonic drill
CN102535455A (en) * 2011-05-27 2012-07-04 李宪奎 Formation method of jet-grouted anchor pile
CN103726498A (en) * 2014-01-21 2014-04-16 山东正元建设工程有限责任公司 Grouting expanding pre-stressed anchor rod of fiber bag and using method thereof
US8943775B2 (en) 2011-03-23 2015-02-03 Michael William Binns Wall system using T-shaped blocks
CN104695435A (en) * 2015-04-07 2015-06-10 兰州理工大学 Self-locking anchoring fiber anchor rod and construction method
CN106013143A (en) * 2016-05-20 2016-10-12 中铁十六局集团地铁工程有限公司 Anchor rod for underground engineering anti-floating system construction and construction method
CN112031000A (en) * 2020-08-28 2020-12-04 浙江钱塘江水利建筑工程有限公司 Water conservancy side slope excavation is support device in advance

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US3541798A (en) * 1969-04-18 1970-11-24 Harry Schnabel Jr Method and structure for shoring a lateral face of an excavation
DE1945493A1 (en) * 1969-09-09 1971-03-11 Cementation Company Ltd Anchoring of a cable in viscous or sticky - material
US3650112A (en) * 1970-09-21 1972-03-21 Howlett Machine Works Method of shoring and apparatus therefor
US3754401A (en) * 1971-12-29 1973-08-28 J Lipow Earth anchor

Cited By (44)

* Cited by examiner, † Cited by third party
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US3886754A (en) * 1973-07-27 1975-06-03 Lee A Turzillo Method of extending augered pile cavity through rock or like obstruction
US4036026A (en) * 1974-07-05 1977-07-19 Kabushiki Kaisha Takechi Koumusho Method and apparatus for establishing an anchor
US3999391A (en) * 1975-06-12 1976-12-28 Meredith Drilling Co., Inc. Tie-back anchor components and method for a shoring system
US4055051A (en) * 1976-01-08 1977-10-25 The United States Of America As Represented By The Secretary Of The Interior Unitary drill bit and roof bolt
US4253781A (en) * 1979-03-08 1981-03-03 Philipp Holzmann Aktiengesellschaft Method and an apparatus for providing a grouted anchorage against hydrostatic pressure
US4718791A (en) * 1985-11-15 1988-01-12 Schnabel Foundation Company High capacity tieback installation method
US4750887A (en) * 1986-08-11 1988-06-14 Simmons Walter J Anchor bolt assembly
US4970835A (en) * 1989-06-06 1990-11-20 Harmon Rick A Wall anchoring device and method of installation
EP0665337A1 (en) * 1994-01-27 1995-08-02 Hollandsche Beton Groep N.V. Method for fitting a grouted anchor for anchoring revetment walls, buildings, bank protection works, quay walls and the like and grouted anchor which can be used for carrying out this method
NL9400121A (en) * 1994-01-27 1995-09-01 Hollandsche Betongroep Nv A method for applying a grout anchor for anchoring earth-retaining walls, structures, bank protection, quay walls and the like, and grout anchor that can be used for carrying out this method.
US6793445B1 (en) * 1999-03-31 2004-09-21 Paul Charlton Method and apparatus for insertion of rock bolts
US6588986B1 (en) * 1999-09-23 2003-07-08 Forasol International Sa Device for drilling and anchoring and process for placing grout anchors
US6672806B2 (en) 2000-11-22 2004-01-06 Forasol International Sa Device for drilling and anchoring and process for placing grout anchors
US6908258B2 (en) 2003-07-11 2005-06-21 James E. Timmerman Methods and apparatus for maintaining seawalls
US20050232700A1 (en) * 2003-07-11 2005-10-20 Timmerman James E Methods, systems and apparatus for maintaining seawalls
US7517175B2 (en) 2003-07-11 2009-04-14 Timmerman James E Method for maintaining seawalls
US20100040419A1 (en) * 2005-02-28 2010-02-18 Roussy Raymond Method and system for installing micropiles with a sonic drill
US8002502B2 (en) 2005-02-28 2011-08-23 Raymond J. Roussy Method and system for installing cast-in-place concrete piles with a sonic drill
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US8136611B2 (en) 2005-02-28 2012-03-20 Roussy Raymond Method and system for installing micropiles with a sonic drill
US8132631B2 (en) 2005-02-28 2012-03-13 Roussy Raymond J Method of geothermal loop installation
US7647988B2 (en) 2005-02-28 2010-01-19 Raymond J. Roussy Method and system for installing geothermal transfer apparatuses with a sonic drill
US20080083565A1 (en) * 2005-02-28 2008-04-10 Roussy Raymond J Method of geothermal loop installation
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EP2247816A1 (en) * 2008-02-22 2010-11-10 Raymond J. Roussy A method and system for installing geothermal heat exchangers, energy piles, concrete piles, micropiles, and anchors using a sonic drill and a removable or retrievable drill bit
US8118115B2 (en) 2008-02-22 2012-02-21 Roussy Raymond J Method and system for installing geothermal heat exchangers, micropiles, and anchors using a sonic drill and a removable or retrievable drill bit
US20090214299A1 (en) * 2008-02-22 2009-08-27 Roussy Raymond J Method and system for installing geothermal heat exchangers, micropiles, and anchors using a sonic drill and a removable or retrievable drill bit
WO2009103149A1 (en) * 2008-02-22 2009-08-27 Roussy Raymond J A method and system for installing geothermal heat exchangers, energy piles, concrete piles, micropiles, and anchors using a sonic drill and a removable or retrievable drill bit
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US20110100713A1 (en) * 2008-02-22 2011-05-05 Roussy Raymond J Method and system for installing geothermal transfer apparatuses with a sonic drill and a removable or retrievable drill bit
US8943775B2 (en) 2011-03-23 2015-02-03 Michael William Binns Wall system using T-shaped blocks
CN102535455A (en) * 2011-05-27 2012-07-04 李宪奎 Formation method of jet-grouted anchor pile
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CA961283A (en) 1975-01-21
JPS5043710A (en) 1975-04-19
GB1429107A (en) 1976-03-24

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