EP3268569B1 - Excavating head - Google Patents
Excavating head Download PDFInfo
- Publication number
- EP3268569B1 EP3268569B1 EP16719491.9A EP16719491A EP3268569B1 EP 3268569 B1 EP3268569 B1 EP 3268569B1 EP 16719491 A EP16719491 A EP 16719491A EP 3268569 B1 EP3268569 B1 EP 3268569B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- head
- fact
- main face
- suction
- openings
- 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.)
- Revoked
Links
- 238000009412 basement excavation Methods 0.000 claims description 27
- 239000000463 material Substances 0.000 claims description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000007664 blowing Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 238000012806 monitoring device Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B7/00—Special methods or apparatus for drilling
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B10/00—Drill bits
- E21B10/08—Roller bits
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D1/00—Sinking shafts
- E21D1/03—Sinking shafts mechanically, e.g. by loading shovels or loading buckets, scraping devices, conveying screws
- E21D1/06—Sinking shafts mechanically, e.g. by loading shovels or loading buckets, scraping devices, conveying screws with shaft-boring cutters
Definitions
- the present invention relates to an excavating head.
- excavating heads are known designed to work in a descending direction below the level of seas or rivers, or in terrestrial conditions in the presence of water tables.
- the heads of known type are usually operated in rotation by means of a driving machine, which makes them rotate around a vertical axis gradually as the excavation progresses in depth.
- heads are in use having a plate-shaped body with an upper face with a plurality of excavation tools arranged staggered with respect to the latter and a side opening crossed by a suction pipe able to aspirate the excavated material.
- the main aim of the present invention is to devise an excavating head which allows removing large amounts of excavated material.
- Another object of the present invention is to devise an excavating head which allows increasing the removal speed of the excavated material, considerably reducing working times and increasing the overall productivity of the head itself.
- Another object of the present invention is to devise an excavating head which allows to overcome the mentioned drawbacks of the prior art within the ambit of a simple, rational, easy, effective to use and affordable solution.
- reference number 1 globally indicates an excavating head.
- the head 1, in particular, allows performing wet excavations.
- wet excavations excavations that take place below the level of seas or rivers, or in terrestrial conditions in the presence of water tables.
- the head 1 comprises an attachment element 2 to a driving machine to place the head itself in rotation.
- the attachment element 2 is a flange with bolting holes 3.
- the flange 2 can be coupled to a corresponding flanged plate 4 equipping the driving machine.
- the placing in rotation takes place around a main axis 5 of the head 1, which also identifies the direction of excavation 6.
- the main axis 5 is vertical and the direction of excavation 6 is downwards.
- the direction of excavation 6 can be horizontal, in which case the head 1 is used in an operative configuration wherein the main axis 5 is horizontal.
- the head 1 comprises a plate-shaped body 7 having a first main face 8 and a second main face 9.
- the plate-shaped body 7 is a substantially circular plate coaxial to the main axis 5.
- the first main face 8 is facing to the excavation front and the second main face 9 is opposite to the first main face 8 and is connected to the attachment element 2.
- excavation front is meant the margin defined by the material to be excavated, along the direction of excavation 6.
- the plate-shaped body 7 is substantially horizontal and the first main face 8 is lower than the second main face 9.
- the head 1 comprises at least an excavation tool 10 associated with the plate-shaped body 7 so as to protrude at least in part from the first main face 8.
- the plate-shaped body 7 comprises a plurality of tools 10.
- the tools 10 have variable shape and size according to the type and dimensions of the excavation.
- the tools 10 are composed of a substantially cylindrical or frusto-conical body having a sharp or abrasive outer surface.
- the tools 10 are mounted idle on the plate-shaped body 7.
- each tool 10 is associated with the plate-shaped body 7 by means of axial pins 11 separate and parallel to each other which allow its free rotation around a central axis of symmetry of the tool 10.
- the tools 10 are arranged asymmetrically with respect to the main axis 5 and have axes of rotation with different inclinations according to their position on the plate-shaped body 7.
- the tools 10 arranged in the proximity of the main axis 5 have the axis of rotation substantially coplanar to the first main face 8, whereas the tools 10 arranged peripherally to the plate-shaped body 7 have the axis of rotation inclined with respect the first main face 8, i.e. arranged neither vertically nor horizontally.
- the tools 10 define an excavation plane 12 tangent to the tools themselves.
- the excavation plane 12 in practice, consists in an imaginary plane which, in the operative configuration of the head 1, is substantially horizontal and tangent to the lower part of each tool 10.
- the head 1 comprises suction means 13 of the excavated material associated with the plate-shaped body 7.
- the suction means 13 comprise a plurality of through openings 14, 15 and crossing the plate-shaped body 7 between the first main face 8 and the second main face 9.
- the tools 10 are at least partially housed within at least one of the through openings 14, 15.
- each tool 10 is at least partially housed within one and only one corresponding through opening 14, 15 and emerges (i.e. protrudes) from the first main face 8 for at least one-twentieth of its volume.
- the axial pins 11 of the tools 10 are arranged inside the through openings 14, 15 and the material excavated by the tools 10 is able to cross the plate-shaped body 7, passing in the space defined between the tools 10 and the inner walls of the through openings 14, 15.
- the through openings 14, 15 comprise a plurality of first through openings 14, accommodating at least partially the tools 10, and at least a second through opening 15, clear of the tools 10.
- the second through opening 15 has a projecting edge 16 protruding from the first main face 8.
- the projecting edge 16 extends from the first main face 8 to a distance very close to the excavation plane 12.
- the suction means 13 also comprise a hood-shaped element 17 having a suction mouth 18 adjacent to the second main face 9 and surrounding the through openings 14, 15.
- the hood-shaped element 17 has a substantially frusto-conical shape wherein the suction mouth 18 defines the larger base of the truncated cone and is substantially circular.
- the suction mouth 18 has a diameter more or less equal to the diameter of the plate-shaped body 7 and, therefore, surrounds and covers all through openings 14, 15 formed on the plate-shaped body itself.
- the hood-shaped element 17 also comprises an outlet section 19 of the excavated material having a smaller surface extension than the suction mouth 18.
- the suction mouth 18 is also circular and defines the smaller base of the truncated cone.
- the hood-shaped element 17, the suction mouth 18 and the outlet section 19 are coaxial to the main axis 5.
- suction means 13 comprise a suction tubular length 20 of the excavated material associated with the outlet section 19.
- the suction tubular length 20 is associated on the top with the suction mouth 18.
- the suction tubular length 20 of the head 1 is in fluid connection with a conveying tube 21 equipping the driving machine.
- the conveying tube 21 is associated with the flanged plate 4 and permits to send the material from depth to the surface.
- the suction means 13 comprise at least an air forced introduction pipe 22 in the suction tubular length 20 able to generate a suction force of the excavated material.
- the suction means 13 comprise a plurality of air forced introduction pipes 22 arranged around the suction tubular length 20.
- the forced introduction pipes 22 communicate on the top, i.e. at inlet, with blowing tubes 23 equipping the driving machine and on the bottom, i.e. at output, with the suction tubular length 20.
- the pressurized air is introduced inside the suction tubular length 20, thus creating a differential pressure which causes the excavated material to lift inside the suction tubular length itself, this phenomenon being known to the person skilled in the art as reverse circulation (RCD).
- RCD reverse circulation
- the plate-shaped body 7 has a lateral perimeter of circular shape from which extends a shell 24 of substantially cylindrical shape, able to laterally protect the hood-shaped element 17.
- the head 1 comprises control means 25 of the inclination of the plate-shaped body 7.
- Said control means 25 are able to allow the control of the inclination of the plate-shaped body 7, during the excavation operations.
- control means 25 comprise an oscillometer accommodated in the space between the hood-shaped element 17 and the shell 24.
- the head 1 can comprise other monitoring devices of the excavation conditions, such as e.g. a thermometer, a hygrometer, or the like.
- the head 1 is made to rotate by the operation of the driving machine.
- the tools 10 are operated in rotation by means of the pressure of the head 1 against the excavation front.
- the excavated material passes through the through openings 14, 15 and is suctioned by the hood-shaped element 17 along the suction tubular length 20, and then is made to exit through the conveying tube 21.
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- Earth Drilling (AREA)
Description
- The present invention relates to an excavating head.
- With reference to the sector of the construction of large works such as tunnels, bridges, dams, aqueducts, foundation pits and the like, excavating heads are known designed to work in a descending direction below the level of seas or rivers, or in terrestrial conditions in the presence of water tables.
- These excavating heads operate in the presence of water in the excavated soil and, for this reason, are also called "heads for wet excavations".
- The heads of known type are usually operated in rotation by means of a driving machine, which makes them rotate around a vertical axis gradually as the excavation progresses in depth.
- In detail, heads are in use having a plate-shaped body with an upper face with a plurality of excavation tools arranged staggered with respect to the latter and a side opening crossed by a suction pipe able to aspirate the excavated material.
- However, the heads of known type have some drawbacks among which must be included the fact that the suction pipe allows to remove small amounts of excavated material.
- Another drawback is represented by the fact that the heads of known type have reduced productivity due to the low removal speed of the excavated material that greatly affects the overall excavation speed, leading to long working times.
- Others excavation heads are known from
KR 2011 0133517 KR 101 401 981 US 3 967 463WO 95/08691 WO 2012/248848 . - The main aim of the present invention is to devise an excavating head which allows removing large amounts of excavated material.
- Another object of the present invention is to devise an excavating head which allows increasing the removal speed of the excavated material, considerably reducing working times and increasing the overall productivity of the head itself.
- Another object of the present invention is to devise an excavating head which allows to overcome the mentioned drawbacks of the prior art within the ambit of a simple, rational, easy, effective to use and affordable solution.
- The above mentioned objects are achieved by the present excavating head having the characteristics of
claim 1. - Other characteristics and advantages of the present invention will become better evident from the description of a preferred, but not exclusive, embodiment of an excavating head, illustrated by way of an indicative, but non-limiting example in the accompanying drawings, wherein:
-
Figure 1 is an axonometric view of the head according to the invention; -
Figure 2 is an axonometric view from another angle of the head according to the invention; -
Figure 3 is a front sectional view of the head according to the invention. - With particular reference to such figures,
reference number 1 globally indicates an excavating head. - The
head 1, in particular, allows performing wet excavations. - In the context of this treatise by "wet excavations" are meant excavations that take place below the level of seas or rivers, or in terrestrial conditions in the presence of water tables.
- The
head 1 comprises anattachment element 2 to a driving machine to place the head itself in rotation. - With reference to the particular embodiment shown in the illustrations, the
attachment element 2 is a flange with boltingholes 3. - The
flange 2 can be coupled to a correspondingflanged plate 4 equipping the driving machine. - The placing in rotation takes place around a
main axis 5 of thehead 1, which also identifies the direction ofexcavation 6. - Advantageously, the
main axis 5 is vertical and the direction ofexcavation 6 is downwards. - Furthermore, it is specified that in the present treatise expressions such as "high", "low", "upper", "lower", "above", "below" and the like, are to be deemed with reference to an operative configuration wherein the
head 1 is used for downward vertical excavations. - It cannot however be ruled out that the direction of
excavation 6 can be horizontal, in which case thehead 1 is used in an operative configuration wherein themain axis 5 is horizontal. - The
head 1 comprises a plate-shapedbody 7 having a firstmain face 8 and a secondmain face 9. - With reference to the particular embodiment shown in the illustrations, the plate-
shaped body 7 is a substantially circular plate coaxial to themain axis 5. - Advantageously, the first
main face 8 is facing to the excavation front and the secondmain face 9 is opposite to the firstmain face 8 and is connected to theattachment element 2. - In the context of this treatise by "excavation front" is meant the margin defined by the material to be excavated, along the direction of
excavation 6. - In the operative configuration, shown in the illustrations, wherein the
main axis 5 is vertical, the plate-shaped body 7 is substantially horizontal and the firstmain face 8 is lower than the secondmain face 9. - The
head 1 comprises at least anexcavation tool 10 associated with the plate-shaped body 7 so as to protrude at least in part from the firstmain face 8. - Advantageously, the plate-
shaped body 7 comprises a plurality oftools 10. - The
tools 10 have variable shape and size according to the type and dimensions of the excavation. - With reference to the particular embodiment shown in the illustrations, the
tools 10 are composed of a substantially cylindrical or frusto-conical body having a sharp or abrasive outer surface. - Conveniently, the
tools 10 are mounted idle on the plate-shaped body 7. - In the present case, each
tool 10 is associated with the plate-shaped body 7 by means ofaxial pins 11 separate and parallel to each other which allow its free rotation around a central axis of symmetry of thetool 10. - With reference to the particular embodiment shown in the illustrations, the
tools 10 are arranged asymmetrically with respect to themain axis 5 and have axes of rotation with different inclinations according to their position on the plate-shaped body 7. - For example, the
tools 10 arranged in the proximity of themain axis 5 have the axis of rotation substantially coplanar to the firstmain face 8, whereas thetools 10 arranged peripherally to the plate-shaped body 7 have the axis of rotation inclined with respect the firstmain face 8, i.e. arranged neither vertically nor horizontally. - Advantageously, the
tools 10 define anexcavation plane 12 tangent to the tools themselves. - The
excavation plane 12, in practice, consists in an imaginary plane which, in the operative configuration of thehead 1, is substantially horizontal and tangent to the lower part of eachtool 10. - The
head 1 comprises suction means 13 of the excavated material associated with the plate-shaped body 7. - The suction means 13 comprise a plurality of through
openings shaped body 7 between the firstmain face 8 and the secondmain face 9. - Conveniently, the
tools 10 are at least partially housed within at least one of the throughopenings - In particular, each
tool 10 is at least partially housed within one and only one corresponding through opening 14, 15 and emerges (i.e. protrudes) from the firstmain face 8 for at least one-twentieth of its volume. - Advantageously, the
axial pins 11 of thetools 10 are arranged inside the throughopenings tools 10 is able to cross the plate-shaped body 7, passing in the space defined between thetools 10 and the inner walls of thethrough openings - Not all through
openings tool 10. - With reference to the particular embodiment shown in the illustrations, in fact, the
through openings openings 14, accommodating at least partially thetools 10, and at least a second through opening 15, clear of thetools 10. - The second through opening 15 has a projecting
edge 16 protruding from the firstmain face 8. - Conveniently, the projecting
edge 16 extends from the firstmain face 8 to a distance very close to theexcavation plane 12. - It is easy to understand how the presence of the projecting
edge 16 allows to aspirate the excavated material through the second through opening 15, going to withdraw directly in the proximity of the excavation front, and, therefore, to increase the flow rate of the material excavated at inlet, thus obtaining greater excavation speed. - The suction means 13 also comprise a hood-
shaped element 17 having asuction mouth 18 adjacent to the secondmain face 9 and surrounding the throughopenings - Advantageously, the hood-
shaped element 17 has a substantially frusto-conical shape wherein thesuction mouth 18 defines the larger base of the truncated cone and is substantially circular. - The
suction mouth 18 has a diameter more or less equal to the diameter of the plate-shaped body 7 and, therefore, surrounds and covers all throughopenings - The hood-
shaped element 17 also comprises anoutlet section 19 of the excavated material having a smaller surface extension than thesuction mouth 18. - The
suction mouth 18 is also circular and defines the smaller base of the truncated cone. - Preferably, the hood-
shaped element 17, thesuction mouth 18 and theoutlet section 19 are coaxial to themain axis 5. - In addition, the suction means 13 comprise a suction
tubular length 20 of the excavated material associated with theoutlet section 19. - With reference to the particular embodiment shown in the illustrations, the suction
tubular length 20 is associated on the top with thesuction mouth 18. - The suction
tubular length 20 of thehead 1 is in fluid connection with aconveying tube 21 equipping the driving machine. - The conveying
tube 21 is associated with theflanged plate 4 and permits to send the material from depth to the surface. - The suction means 13 comprise at least an air forced
introduction pipe 22 in thesuction tubular length 20 able to generate a suction force of the excavated material. - Advantageously, the suction means 13 comprise a plurality of air forced
introduction pipes 22 arranged around thesuction tubular length 20. - The forced
introduction pipes 22 communicate on the top, i.e. at inlet, with blowingtubes 23 equipping the driving machine and on the bottom, i.e. at output, with thesuction tubular length 20. - The pressurized air is introduced inside the
suction tubular length 20, thus creating a differential pressure which causes the excavated material to lift inside the suction tubular length itself, this phenomenon being known to the person skilled in the art as reverse circulation (RCD). - With reference to the particular embodiment shown in the illustrations, the plate-shaped
body 7 has a lateral perimeter of circular shape from which extends ashell 24 of substantially cylindrical shape, able to laterally protect the hood-shapedelement 17. - Advantageously, the
head 1 comprises control means 25 of the inclination of the plate-shapedbody 7. - Said control means 25 are able to allow the control of the inclination of the plate-shaped
body 7, during the excavation operations. - In this regard, the control means 25 comprise an oscillometer accommodated in the space between the hood-shaped
element 17 and theshell 24. - It cannot however be ruled out that the
head 1 can comprise other monitoring devices of the excavation conditions, such as e.g. a thermometer, a hygrometer, or the like. - The operation of the present invention is as follows.
- The
head 1 is made to rotate by the operation of the driving machine. - The
tools 10 are operated in rotation by means of the pressure of thehead 1 against the excavation front. - Simultaneously the excavated material passes through the through
openings element 17 along thesuction tubular length 20, and then is made to exit through the conveyingtube 21. - It has in practice been ascertained how the described invention achieves the intended objects.
- In particular, the fact is underlined that the particular solution of providing a hood-shaped element cooperating with a plurality of through openings formed through the plate-shaped body, permits increasing the amount of material removed in the unit of time and greatly increases the productivity of the excavating head.
Claims (12)
- Excavating head (1) comprising:- at least an attachment element (2) to a driving machine to place said head (1) in rotation;- at least a plate-shaped body (7) having at least a first main face (8) and at least a second main face (9), said first main face (8) being facing to the excavation front and said second main face (9) being opposite to said first main face (8) and connected to said attachment element (2);- at least an excavation tool (10) associated with said plate-shaped body (7) so as to protrude at least in part from said first main face (8); and- suction means (13) of the excavated material associated with said plate-shaped body (7) comprising:characterized by the fact said suction means (13) comprises at least a hood-shaped element (17) having a suction mouth (18) adjacent to said second main face (9) and surrounding said through openings (14, 15), and an outlet section (19) of said excavated material having a surface extension smaller than said suction mouth (18), and by the fact that said suction means (13) comprise a suction tubular length (20) of said excavated material associated with said outlet section (19).- a plurality of through openings (14, 15) and crossing said plate-shaped body (7) between said first main face (8) and said second main face (9);
- Head (1) according to claim 1, characterized by the fact that said tool (10) is housed at least in part within at least one of said through openings (14, 15).
- Head (1) according to claim 2, characterized by the fact that said tool (10) housed at least in part within at least one of said openings (14, 15) emerges from said first main face (8) for at least one-twentieth of its volume.
- Head (1) according to one or more of the preceding claims, characterized by the fact that it comprises a plurality of said tools (10) each of which is housed at least in part within one of said through openings (14, 15).
- Head (1) according to claim 4, characterized by the fact that said through openings (14, 15) comprise a plurality of first through openings (14) accommodating at least partially said tools (10) and at least a second through opening (15) clear of said tools (10).
- Head (1) according to claim 5, characterized by the fact that said second through opening (15) has a projecting edge (16) from said first main face (8).
- Head (1) according to one or more of the preceding claims, characterized by the fact that said hood-shaped element (17) has a substantially frusto-conical shape.
- Head (1) according to claim 1, characterized by the fact that said suction means (13) comprise at least an air forced introduction pipe (22) in said suction tubular length (20) able to generate a suction force of said excavated material.
- Head (1) according to claim 8, characterized by the fact that said suction means (13) comprise a plurality of said air forced introduction pipes (22) arranged around said suction tubular length (20).
- Head (1) according to one or more of the preceding claims, characterized by the fact that said plate-shaped body (7) has a lateral perimeter of circular shape from which extends a shell (24) of a substantially cylindrical shape for the lateral protection of said hood-shaped element (17).
- Head (1) according to one or more of the preceding claims, characterized by the fact that it comprises control means (25) of the inclination of said plate-shaped body (7).
- Head (1) according to claims 10 and 11, characterized by the fact that said control means (25) comprise an oscillometer accommodated in the space between said hood-shaped element (17) and said shell (24).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ITMO20150056 | 2015-03-12 | ||
PCT/IB2016/051387 WO2016142910A1 (en) | 2015-03-12 | 2016-03-11 | Excavating head |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3268569A1 EP3268569A1 (en) | 2018-01-17 |
EP3268569B1 true EP3268569B1 (en) | 2019-05-08 |
Family
ID=53177803
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP16719491.9A Revoked EP3268569B1 (en) | 2015-03-12 | 2016-03-11 | Excavating head |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP3268569B1 (en) |
WO (1) | WO2016142910A1 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102019120019A1 (en) | 2019-07-24 | 2021-01-28 | Herrenknecht Ag | Boring head for drilling a hole in the ground |
WO2021013846A2 (en) | 2019-07-24 | 2021-01-28 | Herrenknecht Ag | Drill head and method for producing a vertical borehole in the ground |
Citations (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3384191A (en) | 1965-08-13 | 1968-05-21 | Reed Roller Bit Co | Drill bit |
US4195700A (en) | 1978-08-14 | 1980-04-01 | Smith International, Inc. | Large diameter bit with sweep pickup |
US4200160A (en) | 1978-03-13 | 1980-04-29 | Smith International, Inc. | Sweep pickup for a big hole bit |
DE3302117C2 (en) | 1982-12-22 | 1990-01-25 | Salzgitter Maschinenbau Gmbh, 3320 Salzgitter, De | |
DE4113208A1 (en) | 1991-04-23 | 1992-10-29 | Herrenknecht Gmbh | TUNNEL DRIVING MACHINE |
DE19626589C1 (en) | 1996-07-02 | 1998-02-12 | Wirth Co Kg Masch Bohr | Sinking boreholes in soft ground |
DE19626591C1 (en) | 1996-07-02 | 1998-04-16 | Wirth Co Kg Masch Bohr | Process for drilling boreholes in the soil with discharge of the drill material according to the air lifting process and drilling tool for applying the process |
DE102006026561B3 (en) | 2006-06-06 | 2008-01-03 | Herrenknecht Ag | North finder for a tunnel boring machine |
KR20110133517A (en) | 2010-06-05 | 2011-12-13 | 유재호 | New excavating apparatus of vertical hole and reaming method of vertical hole |
DE102012004762A1 (en) | 2012-03-08 | 2013-09-12 | Rüdiger Kögler | Device for expanding bore hole up to large diameter, has delivery line extending from region of cutting wheel inside machine pipe, and outlet located in rear portion of machine pipe, where support plate is connected with machine pipe |
KR101401981B1 (en) | 2012-12-27 | 2014-05-30 | (주)성풍건설 | Excavating apparatus of vertical hole |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3967463A (en) * | 1974-08-05 | 1976-07-06 | The Robbins Company | Continuous tunnel boring machine and method |
US5626201A (en) * | 1993-09-20 | 1997-05-06 | Excavation Engineering Associates, Inc. | Disc cutter and method of replacing disc cutters |
CN101936169B (en) * | 2010-08-24 | 2011-12-07 | 中铁隧道装备制造有限公司 | Cutting device with small-range diameter-variable function of soft rock shield machine |
-
2016
- 2016-03-11 WO PCT/IB2016/051387 patent/WO2016142910A1/en active Application Filing
- 2016-03-11 EP EP16719491.9A patent/EP3268569B1/en not_active Revoked
Patent Citations (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3384191A (en) | 1965-08-13 | 1968-05-21 | Reed Roller Bit Co | Drill bit |
US4200160A (en) | 1978-03-13 | 1980-04-29 | Smith International, Inc. | Sweep pickup for a big hole bit |
US4195700A (en) | 1978-08-14 | 1980-04-01 | Smith International, Inc. | Large diameter bit with sweep pickup |
DE3302117C2 (en) | 1982-12-22 | 1990-01-25 | Salzgitter Maschinenbau Gmbh, 3320 Salzgitter, De | |
DE4113208A1 (en) | 1991-04-23 | 1992-10-29 | Herrenknecht Gmbh | TUNNEL DRIVING MACHINE |
DE19626589C1 (en) | 1996-07-02 | 1998-02-12 | Wirth Co Kg Masch Bohr | Sinking boreholes in soft ground |
DE19626591C1 (en) | 1996-07-02 | 1998-04-16 | Wirth Co Kg Masch Bohr | Process for drilling boreholes in the soil with discharge of the drill material according to the air lifting process and drilling tool for applying the process |
DE102006026561B3 (en) | 2006-06-06 | 2008-01-03 | Herrenknecht Ag | North finder for a tunnel boring machine |
KR20110133517A (en) | 2010-06-05 | 2011-12-13 | 유재호 | New excavating apparatus of vertical hole and reaming method of vertical hole |
DE102012004762A1 (en) | 2012-03-08 | 2013-09-12 | Rüdiger Kögler | Device for expanding bore hole up to large diameter, has delivery line extending from region of cutting wheel inside machine pipe, and outlet located in rear portion of machine pipe, where support plate is connected with machine pipe |
KR101401981B1 (en) | 2012-12-27 | 2014-05-30 | (주)성풍건설 | Excavating apparatus of vertical hole |
Non-Patent Citations (1)
Title |
---|
ANONYMUS: "Kompendium Die Geheimnisse der Neigungsmesstechnik", WYLER AG, 1 January 2013 (2013-01-01), XP055684399 |
Also Published As
Publication number | Publication date |
---|---|
WO2016142910A1 (en) | 2016-09-15 |
EP3268569A1 (en) | 2018-01-17 |
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