US3815368A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for installing concrete anchor piles in situ
Assignee: Individual
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Filing: 1973-07-19
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Granted: 1974-06-11
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Expires: 1993-07-19
Abstract
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 An auger drill is progressively withdrawn from the bore while fluid hydraulic cement mortar is pumped through auger shaft to form a pile in the bore, to requisite extents above and below slippage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.
Inventors
- 👤 L Turzillo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 16:48
CPC Classifications
E; E02; E02D; E02D5/00; E02D5/74; E02D5/76; E02D5/22; E02D5/34; E02D5/36; E02D5/54
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
145 words
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.
Claim 2
Independent Claim
145 words
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.
Claim 3
Dependent Claim
55 words
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.
Claim 4
Dependent Claim
34 words
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.
Claim 5
Independent Claim
178 words
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.
Claim 6
Independent Claim
178 words
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.
Claim 7
Dependent Claim
30 words
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.
Claim 8
Dependent Claim
31 words
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.
Claim 9
Dependent Claim
35 words
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.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-06-10 | 1977-12-10 | 1978-06-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-06-10 | 1981-12-10 | 1982-06-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-06-10 | 1985-12-10 | 1986-06-11 | $7700.00 | Window Closed / Lapsed |