EP3199709A1 - Vorrichtung und verfahren zum bohren ringförmiger hohlräume - Google Patents
Vorrichtung und verfahren zum bohren ringförmiger hohlräume Download PDFInfo
- Publication number
- EP3199709A1 EP3199709A1 EP16153711.3A EP16153711A EP3199709A1 EP 3199709 A1 EP3199709 A1 EP 3199709A1 EP 16153711 A EP16153711 A EP 16153711A EP 3199709 A1 EP3199709 A1 EP 3199709A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cavity
- body member
- drilling assembly
- annular
- pile
- 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
Links
- 238000005553 drilling Methods 0.000 title claims abstract description 55
- 238000000034 method Methods 0.000 title claims description 16
- 239000000758 substrate Substances 0.000 claims abstract description 6
- 239000000463 material Substances 0.000 claims description 20
- 239000012530 fluid Substances 0.000 claims description 4
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 230000004044 response Effects 0.000 claims description 2
- 230000008901 benefit Effects 0.000 description 9
- 230000032258 transport Effects 0.000 description 5
- 238000010276 construction Methods 0.000 description 3
- 230000004075 alteration Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 239000011440 grout Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
Images
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
- E02D5/74—Means for anchoring structural elements or bulkheads
- E02D5/80—Ground anchors
Definitions
- the present invention relates to an apparatus and a method for drilling annular cavities and relates particularly, but not exclusively, to an apparatus and method for drilling annular cavities for the location of piles and construction of retaining walls.
- EP2813623A1 discloses an anchor device adapted to form an annular cavity and locate an anchor device therein. While a body member of the anchor device may be separated from the device and recovered after a drilling operation, the cutting members cannot be recovered and are consequently left behind in the annular cavity after the drilling process has been completed. Separate cutting members are therefore needed for each annular cavity formed, which leads to excessive costs.
- Preferred embodiments of the present invention seek to overcome one or more of the disadvantages of the prior art.
- a drilling assembly having a plurality of said cutting members moveable relative to said first body member between a first condition, in which rotation in a first direction of the first body member causes the cutting members to form an annular cavity defining a second radially outer surface spaced from said first radially outer surface and a second radially inner surface spaced from said first radially inner surface, and a second condition, in which said first body member, with said cutting members mounted thereto, can be removed from said cavity while leaving said second body member in said cavity, the advantage is provided that the first body member and cutting members mounted to it may be retrieved after each drilling operation, thereby allowing the first body member and cutting portions to be reused and therefore reducing installation costs.
- This provides the advantage of a simple mechanism for transferring the cutting member from the first condition to the second condition, thereby making the drilling assembly simpler to operate.
- the drilling assembly may further comprise at least one abutment member adapted to abut at least one cutting member in at least one of said first and second conditions.
- This provides the advantage of maintaining at least one cutting member in a desired condition by means of a simple construction.
- the drilling assembly may further comprise at least one connecting device mounted adjacent an outer surface of said second body member, said at least one connecting device being adapted to connect said second body member to at least one sheet pile.
- At least one said connection device may comprise at least one male or female connector extending on said outer surface, wherein at least one said male or female connector is adapted to engage a respective female or male connector of a sheet pile.
- the method may further comprise using a template to position said drilling assembly during formation of said cavities.
- This provides the advantage of ensuring the correct placement of at least one second body member.
- Figure 2 shows a bottom view of the cutters 16 in the first condition.
- the annular cavity defined by the second outer and inner surfaces 20, 22, and the first outer and inner surfaces 12, 14, is shown.
- Two connecting devices 24 are shown mounted on the outer pile 4, located on opposite sides of the outer pile 4, though it is possible to mount more than two such devices.
- the connecting devices 24 are shown as hook-shaped devices for connecting to similar respective devices (see Figure 11 ) mounted on one or more sheet piles.
- Channels in the form of grouting tubes 26 are shown mounted on the inner pile 6.
- the drilling assembly 2 is shown in a second condition, in which all twelve of the cutters 16 are oriented to extend to the second inner surface 22 of the annular cavity 18. In the second condition, none of the cutters 16 are oriented to extend to the second outer surface 20 of the cavity 18, nor do any of the cutters 16 extend outwardly as far as an inner surface 28 of the outer pile 4. Abutment members 30 are shown abutting a number of cutters 16 in the second condition. The abutment members 30 are also shown in Figure 1 , abutting a number of cutters 16 in the first condition.
- the drilling assembly 2 is used to cut an annular cavity 18 in the ground, locate the outer pile 4, and have the inner pile 6 and cutters 16 removed after drilling for reuse.
- the cutters 16 are oriented in the first condition ( Figures 1 and 2 ), and the inner pile 6 is driven by external means (not shown) in the first direction to cut the annular cavity 18.
- the cutters 16 may also be driven to rotate about each of their axes for cutting the cavity 18.
- the cutters 16 are oriented to cut the annular cavity which is defined by the second outer surface 20 and second inner surface 22, where the second outer surface 20 has a larger radius than the first outer surface 12 of the outer pile 4 and where the second inner surface 20 has a smaller radius than the first inner surface 14 of the inner pile 6.
- the drilling assembly 200 is used to cut an annular cavity 1800 in the ground, locate the inner pile 600, and have the outer pile 400 and cutters 1600 removed after drilling for reuse.
- the cutters 1600 are oriented in the first condition ( Figures 6 and 7 ), and the outer pile 400 is driven by external means (not shown) in the first direction to cut the annular cavity 1800.
- the cutters 1600 may also be driven to rotate about each of their axes for cutting the cavity 1800.
- the cutters 1600 are oriented to cut the annular cavity which is defined by the second outer surface 2000 and second inner surface 2200, where the second outer surface 2000 has a larger radius than the first outer surface 1200 of the outer pile 400 and where the second inner surface 2000 has a smaller radius than the first inner surface 1400 of the inner pile 600.
- the inner pile 600 can be rotated about its longitudinal axis in order to orient the connecting devices 2800 as required for subsequent attachment of one or more sheet piles.
- a number of piles 600 may be located in proximity to one another, in a corresponding number of annular cavities 1800, and have sheet piles located between them to form a retaining wall or cofferdam-type structure.
- a template may be used to position the drilling assembly during formation of a cavity.
- the template is used to position the drilling assembly relative to an existing cavity.
- the distance between the two cavities can therefore be chosen to correspond to a desired width of sheet pile to be located between the two piles located in those cavities.
Landscapes
- 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)
- Bulkheads Adapted To Foundation Construction (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP16153711.3A EP3199709B1 (de) | 2016-02-01 | 2016-02-01 | Vorrichtung und verfahren zum bohren ringförmiger hohlräume |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP16153711.3A EP3199709B1 (de) | 2016-02-01 | 2016-02-01 | Vorrichtung und verfahren zum bohren ringförmiger hohlräume |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP3199709A1 true EP3199709A1 (de) | 2017-08-02 |
| EP3199709B1 EP3199709B1 (de) | 2019-08-07 |
Family
ID=55275015
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP16153711.3A Active EP3199709B1 (de) | 2016-02-01 | 2016-02-01 | Vorrichtung und verfahren zum bohren ringförmiger hohlräume |
Country Status (1)
| Country | Link |
|---|---|
| EP (1) | EP3199709B1 (de) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020201719A1 (en) | 2019-04-05 | 2020-10-08 | Raptor Anchoring Limited | A fixation device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0368838A1 (de) * | 1988-11-03 | 1990-05-16 | Gerhard Dr.-Ing. Sauer | Vorrichtung zur Absicherung von nicht bzw. mässig standfesten kohäsionslosen bis leicht kohäsiven geologischen Formationen |
| DE4432472A1 (de) * | 1994-09-13 | 1996-03-14 | Reburg Patentverwertungs Gmbh | Verfahren zum Setzen eines Gebirgsankers und Adapterteil zur Verwendung in einem solchen Verfahren |
| EP2813623A1 (de) | 2013-06-11 | 2014-12-17 | Blade Offshore Services Ltd. | Ankervorrichtung und Bohranordnung mit solch einem Ankerelement |
-
2016
- 2016-02-01 EP EP16153711.3A patent/EP3199709B1/de active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0368838A1 (de) * | 1988-11-03 | 1990-05-16 | Gerhard Dr.-Ing. Sauer | Vorrichtung zur Absicherung von nicht bzw. mässig standfesten kohäsionslosen bis leicht kohäsiven geologischen Formationen |
| DE4432472A1 (de) * | 1994-09-13 | 1996-03-14 | Reburg Patentverwertungs Gmbh | Verfahren zum Setzen eines Gebirgsankers und Adapterteil zur Verwendung in einem solchen Verfahren |
| EP2813623A1 (de) | 2013-06-11 | 2014-12-17 | Blade Offshore Services Ltd. | Ankervorrichtung und Bohranordnung mit solch einem Ankerelement |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020201719A1 (en) | 2019-04-05 | 2020-10-08 | Raptor Anchoring Limited | A fixation device |
Also Published As
| Publication number | Publication date |
|---|---|
| EP3199709B1 (de) | 2019-08-07 |
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