CA2893623A1 - Device for excavating a shaft - Google Patents
Device for excavating a shaft Download PDFInfo
- Publication number
- CA2893623A1 CA2893623A1 CA2893623A CA2893623A CA2893623A1 CA 2893623 A1 CA2893623 A1 CA 2893623A1 CA 2893623 A CA2893623 A CA 2893623A CA 2893623 A CA2893623 A CA 2893623A CA 2893623 A1 CA2893623 A1 CA 2893623A1
- Authority
- CA
- Canada
- Prior art keywords
- hauling
- shaft
- container
- suction line
- intermediate storage
- 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.)
- Abandoned
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C25/00—Cutting machines, i.e. for making slits approximately parallel or perpendicular to the seam
- E21C25/68—Machines for making slits combined with equipment for removing, e.g. by loading, material won by other means
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH 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
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C35/00—Details of, or accessories for, machines for slitting or completely freeing the mineral from the seam, not provided for in groups E21C25/00 - E21C33/00, E21C37/00 or E21C39/00
- E21C35/20—General features of equipment for removal of chippings, e.g. for loading on conveyor
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C35/00—Details of, or accessories for, machines for slitting or completely freeing the mineral from the seam, not provided for in groups E21C25/00 - E21C33/00, E21C37/00 or E21C39/00
- E21C35/22—Equipment for preventing the formation of, or for removal of, dust
- E21C35/223—Equipment associated with mining machines for sucking dust-laden air from the cutting area, with or without cleaning of the air
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F13/00—Transport specially adapted to underground conditions
Abstract
The invention relates to a device for excavating a shaft (1) in which a suction line (6) extends between a mining tool (2, 3) and a single intermediate storage container (7). During the continuous operation of the mining tool (2, 3), the intermediate storage chamber (7) can be filled via the suction line (6) to a predetermined filling level, and when said level is reached, in the event of a lack of pressure in the suction line (6), an ejector door (26) can be opened to fill at least one of the conveyor containers (28). Based on the arrangement of the opening area of the suction line (6) in the immediate vicinity of the mining tool (2, 3), the degraded material produced when there is no pressure in the suction line (6) can be easily evacuated after restarting the suction line (6). This enables a high degradation performance to be obtained.
Description
Transtek Document No. GE0420 Device for excavating a shaft The invention relates to a device for excavating a shaft according to the preamble of Claim 1.
Such a device is known from GB 2 158 129 A. The prior device for excavating a shaft comprises a cutting tool for excavating material at the shaft bottom, as the deepest region of the shaft, and is equipped with a conveying means disposed in the operating area of the cutting tool and operative to convey the material excavated at the shaft bottom to a transfer station comprising a single intermediate storage container. There is also a hauling means in the form of a hauling container, by means of which the excavated material from the intermediate storage container can be hauled away toward a shaft opening located oppositely from the shaft bottom. In the prior device, the conveying means is embodied as a conveyor belt equipped with receiving containers, which is active while the cutting tool is operating.
Known from US A 3,379,264 is a device for excavating a shaft that has a cutting tool adapted to excavate material along a conical surface on both sides of the shaft bottom, as the deepest region of the shaft. This prior device is also equipped with a conveying means, which is disposed in the shaft bottom centrally to the cutting tool and comprises a suction line, which is connected to an exhaust blower and through which the excavated material can be transferred to a single intermediate storage container.
The object underlying the invention is to specify a device of the initially cited kind, by means of which continuous excavation operations can be ensured even when excavated material is being hauled away discontinuously from a single intermediate storage container.
Transtek Document No. GE0420 This object is achieved according to the invention, in a device of the initially cited kind, by means of the characterizing features of Claim 1.
By virtue of the fact that in the device according to the invention, the conveying means comprises a suction line and is provided with an exhaust blower connected to the suction line and operative to generate an air current directed from the shaft bottom into the intermediate storage container, the cutting tool can be operated continuously even when the conveying means is intermittently deactivated in order to empty the single intermediate storage container. After the conveying means is reactivated, excavated material that has accumulated in the meantime can simply be conveyed away with newly excavated material as soon as the conveying means, with the cutting tool, returns to excavation areas that were being worked while the conveying means was idle.
Further useful embodiments of the invention are the subject matter of the dependent claims.
Further useful embodiments and advantages of the invention will emerge from the following description of an exemplary embodiment, read with reference to the figures of the drawing.
Therein:
Fig. 1 is a schematic side view of a first exemplary embodiment of a device according to the invention, comprising a hauling container that is loaded from a single intermediate storage container at a filling position, Fig. 2 shows the exemplary embodiment according to Fig. 1 with the intermediate storage container in a plan view,
Such a device is known from GB 2 158 129 A. The prior device for excavating a shaft comprises a cutting tool for excavating material at the shaft bottom, as the deepest region of the shaft, and is equipped with a conveying means disposed in the operating area of the cutting tool and operative to convey the material excavated at the shaft bottom to a transfer station comprising a single intermediate storage container. There is also a hauling means in the form of a hauling container, by means of which the excavated material from the intermediate storage container can be hauled away toward a shaft opening located oppositely from the shaft bottom. In the prior device, the conveying means is embodied as a conveyor belt equipped with receiving containers, which is active while the cutting tool is operating.
Known from US A 3,379,264 is a device for excavating a shaft that has a cutting tool adapted to excavate material along a conical surface on both sides of the shaft bottom, as the deepest region of the shaft. This prior device is also equipped with a conveying means, which is disposed in the shaft bottom centrally to the cutting tool and comprises a suction line, which is connected to an exhaust blower and through which the excavated material can be transferred to a single intermediate storage container.
The object underlying the invention is to specify a device of the initially cited kind, by means of which continuous excavation operations can be ensured even when excavated material is being hauled away discontinuously from a single intermediate storage container.
Transtek Document No. GE0420 This object is achieved according to the invention, in a device of the initially cited kind, by means of the characterizing features of Claim 1.
By virtue of the fact that in the device according to the invention, the conveying means comprises a suction line and is provided with an exhaust blower connected to the suction line and operative to generate an air current directed from the shaft bottom into the intermediate storage container, the cutting tool can be operated continuously even when the conveying means is intermittently deactivated in order to empty the single intermediate storage container. After the conveying means is reactivated, excavated material that has accumulated in the meantime can simply be conveyed away with newly excavated material as soon as the conveying means, with the cutting tool, returns to excavation areas that were being worked while the conveying means was idle.
Further useful embodiments of the invention are the subject matter of the dependent claims.
Further useful embodiments and advantages of the invention will emerge from the following description of an exemplary embodiment, read with reference to the figures of the drawing.
Therein:
Fig. 1 is a schematic side view of a first exemplary embodiment of a device according to the invention, comprising a hauling container that is loaded from a single intermediate storage container at a filling position, Fig. 2 shows the exemplary embodiment according to Fig. 1 with the intermediate storage container in a plan view,
2 Transtek Document No. GE0420 Fig. 3 is a schematic side view of the exemplary embodiment according to Fig.
1 in the region of the intermediate storage container and the hauling container during the loading of the hauling container, Fig. 4 is a side view of another exemplary embodiment of a device according to the invention, comprising two hauling containers that can be loaded from the single intermediate storage container at two filling positions, Fig. 5 shows the exemplary embodiment according to Fig. 4 in a plan view of the intermediate storage container during the loading of the one hauling container and Fig. 6 shows the exemplary embodiment according to Fig. 4 in a plan view of the intermediate storage container during the loading of the second hauling container.
Figure 1 is a schematic side view of a shaft 1 extending in a vertical direction, showing an exemplary embodiment of a device according to the invention. The exemplary embodiment according to Fig. 1 comprises a rotatable and pivotable milling arm 2 of a cutting tool, which arm is equipped at a free end with a milling drum 3 of the cutting tool.
By means of the milling drum 3, material can be excavated from a shaft bottom 4, as the deepest region of the shaft 1. The milling arm 2 also carries a suction funnel 5 belonging to conveying means and disposed immediately adjacent the milling drum 3.
Connected to the suction funnel 5 is a suction line 6 of the conveying means, which extends away from the suction funnel 5 and opens into a suction tank 7, as a first intermediate storage container of a transfer station.
It can also be seen from the depiction of Fig. 1 that the exemplary embodiment illustrated in Fig. 1 comprises an advance drill 8, which is disposed in the vicinity of the milling arm 2 and can be used, for example, to drill sounding holes into the shaft bottom 4. Located
1 in the region of the intermediate storage container and the hauling container during the loading of the hauling container, Fig. 4 is a side view of another exemplary embodiment of a device according to the invention, comprising two hauling containers that can be loaded from the single intermediate storage container at two filling positions, Fig. 5 shows the exemplary embodiment according to Fig. 4 in a plan view of the intermediate storage container during the loading of the one hauling container and Fig. 6 shows the exemplary embodiment according to Fig. 4 in a plan view of the intermediate storage container during the loading of the second hauling container.
Figure 1 is a schematic side view of a shaft 1 extending in a vertical direction, showing an exemplary embodiment of a device according to the invention. The exemplary embodiment according to Fig. 1 comprises a rotatable and pivotable milling arm 2 of a cutting tool, which arm is equipped at a free end with a milling drum 3 of the cutting tool.
By means of the milling drum 3, material can be excavated from a shaft bottom 4, as the deepest region of the shaft 1. The milling arm 2 also carries a suction funnel 5 belonging to conveying means and disposed immediately adjacent the milling drum 3.
Connected to the suction funnel 5 is a suction line 6 of the conveying means, which extends away from the suction funnel 5 and opens into a suction tank 7, as a first intermediate storage container of a transfer station.
It can also be seen from the depiction of Fig. 1 that the exemplary embodiment illustrated in Fig. 1 comprises an advance drill 8, which is disposed in the vicinity of the milling arm 2 and can be used, for example, to drill sounding holes into the shaft bottom 4. Located
3 US.56564993 01 Transtek Document No. GE0420 in the mounting region of the milling arm 2 and of the advance drill 8 is an excavation chamber catwalk 9, which is provided with a dust shield 10 on its side facing away from the milling arm 2. The dust shield 10 has a number of dust shield stabilizer plates 11, which bear radially outwardly against a shaft wall 12 of the shaft 1 and thus delimit an excavation space 13 extending between the shaft bottom 4 and the dust shield 10.
Disposed on the side of the dust shield 10 facing away from the milling arm 2 is a supporting column 14 that is part of a machine frame, and that is accessible from the outside and contains all the feed and discharge lines for the dust shield 10 and the excavation space 13, and gives access to the advance drill 8, together with an anchor drill 15 that can be used to set anchors in the shaft wall 12.
Disposed on the side of the control room 14 facing away from the dust shield 10 is a shaft-bottom-end shaft platform 16, which is suspended from a number of support cables 17. The support cables 17 extend away from the shaft-bottom-end shaft platform 16, on the side thereof facing away from the milling arm 2, toward the shaft opening 18. On its side facing away from the milling arm 2, the shaft-bottom-end shaft platform 16 supports a number of intermediate shaft platforms 19 and a shaft-opening-end shaft platform 20.
In the region of the shaft-opening-end shaft platform 20, the exemplary embodiment according to Fig. 1 comprises stabilizers 21 that can be pressed against the shaft wall 12 to stabilize the device according to the invention. In this embodiment, an intermediate shaft platform 19 carries the suction container 7 and a dust filter 22 of the conveying means, which filter is connected via a connecting line 23 to the suction container 7. Also connected to the dust filter 22 is a connecting line 24 that is connected to an exhaust blower 25 of the conveying means. Material removed from the shaft bottom 4 via the suction line 6 while the exhaust blower 25 is operating can thus be conveyed via the suction line 6 into the suction container 7.
Disposed on the side of the dust shield 10 facing away from the milling arm 2 is a supporting column 14 that is part of a machine frame, and that is accessible from the outside and contains all the feed and discharge lines for the dust shield 10 and the excavation space 13, and gives access to the advance drill 8, together with an anchor drill 15 that can be used to set anchors in the shaft wall 12.
Disposed on the side of the control room 14 facing away from the dust shield 10 is a shaft-bottom-end shaft platform 16, which is suspended from a number of support cables 17. The support cables 17 extend away from the shaft-bottom-end shaft platform 16, on the side thereof facing away from the milling arm 2, toward the shaft opening 18. On its side facing away from the milling arm 2, the shaft-bottom-end shaft platform 16 supports a number of intermediate shaft platforms 19 and a shaft-opening-end shaft platform 20.
In the region of the shaft-opening-end shaft platform 20, the exemplary embodiment according to Fig. 1 comprises stabilizers 21 that can be pressed against the shaft wall 12 to stabilize the device according to the invention. In this embodiment, an intermediate shaft platform 19 carries the suction container 7 and a dust filter 22 of the conveying means, which filter is connected via a connecting line 23 to the suction container 7. Also connected to the dust filter 22 is a connecting line 24 that is connected to an exhaust blower 25 of the conveying means. Material removed from the shaft bottom 4 via the suction line 6 while the exhaust blower 25 is operating can thus be conveyed via the suction line 6 into the suction container 7.
4 Transtek Document No. GE0420 The suction container 7 has a pivoting discharge flap 26 at its end facing the milling arm 2. Also present in the region of the discharge flap 26 is an extendable telescopic chute 27, via which material that is conveyed into the suction container 7 when the discharge flap 26 is open can be transferred into a hauling container 28 of hauling means. Attached to the hauling container 28 is a hauling cable 29 of the hauling means, by means of which the hauling container 28 can be moved toward the shaft opening 18 and back to the suction container 7.
Figure 2 illustrates the exemplary embodiment according to Fig. 1 in the region of the suction container 7, looking toward the shaft bottom 4. Figure 2 shows particularly clearly how the telescopic chute 27, in an extended position, reaches from the suction container 7 to the hauling container 28 so the hauling container 28 can be filled with the material brought into the suction container 7 via the suction line 6.
Figure 3 is a schematic side view of the exemplary embodiment according to Fig. 1; in the schematic depiction of Fig. 3, the discharge flap 26 is shown in the open position and the telescopic chute 27 in the extended position for filling the hauling container 28 with excavated material.
The operation of the device according to the invention proceeds as follows.
The milling drum 3 is continuously active, excavating material at the shaft bottom 4. When the exhaust blower 25 is operating, material excavated by the milling drum 3 is conveyed via the suction line 6 into the suction container 7, the discharge flap 26 being closed. When a given fill level is reached in the suction container 7, the exhaust blower 25 is switched off With the suction container 7 under ambient pressure, the discharge flap 26 is then opened, causing a hauling container 28 disposed at the end of the telescopic chute 27 remote from the suction container 7 to be filled with the excavated material.
The discharge flap 26 is then closed again and the exhaust blower 25 is restarted, while the hauling container 28 is moved toward the shaft opening 18. Material already excavated and newly excavated at the shaft bottom 4 during the continuous operation of the milling Transtek Document No. GE0420 drum 3 is then again conveyed via the suction line 6 into the suction container 7 until the suction container 7 is once again filled to the predetermined fill level and an empty hauling container 28 is disposed ready for loading at the end of the telescopic chute 27.
In this way, material excavated in a continuous excavating operation can be discontinuously conveyed and hauled away.
Figure 4 is a side view of another exemplary embodiment of a device according to the invention, it being noted that like elements in the exemplary embodiment of Figs. 1 to 3 and the exemplary embodiment of Fig. 4 are provided with the same reference numerals and will not all be described in more detail below, to avoid repetition. The exemplary embodiment of Fig. 4, in deviation from the exemplary embodiment of Figs. 1 to 3, has two hauling containers 28, each suspended from a respective hauling cable 29.
To alternately fill the two hauling containers 28, a pivoting chute 30 is disposed on the suction container 7 and can be oriented to fill one hauling container 28 at a time.
Figure 5 is a depiction similar to Fig. 2 of the exemplary embodiment according to Fig. 4, with the pivoting chute 30 oriented to fill one of the hauling containers 28.
Figure 6 is a depiction similar to Fig. 2 of the exemplary embodiment according to Fig. 4, with the pivoting chute 30 oriented to fill the other hauling container 28.
The operation of the exemplary embodiment according to Figs. 4 to 6 is such that the two hauling containers 28 are disposed alternately at the suction container 7, thus permitting shorter cycle times for emptying the suction container 7 than with the exemplary embodiment according to Figs. 1 to 3.
Figure 2 illustrates the exemplary embodiment according to Fig. 1 in the region of the suction container 7, looking toward the shaft bottom 4. Figure 2 shows particularly clearly how the telescopic chute 27, in an extended position, reaches from the suction container 7 to the hauling container 28 so the hauling container 28 can be filled with the material brought into the suction container 7 via the suction line 6.
Figure 3 is a schematic side view of the exemplary embodiment according to Fig. 1; in the schematic depiction of Fig. 3, the discharge flap 26 is shown in the open position and the telescopic chute 27 in the extended position for filling the hauling container 28 with excavated material.
The operation of the device according to the invention proceeds as follows.
The milling drum 3 is continuously active, excavating material at the shaft bottom 4. When the exhaust blower 25 is operating, material excavated by the milling drum 3 is conveyed via the suction line 6 into the suction container 7, the discharge flap 26 being closed. When a given fill level is reached in the suction container 7, the exhaust blower 25 is switched off With the suction container 7 under ambient pressure, the discharge flap 26 is then opened, causing a hauling container 28 disposed at the end of the telescopic chute 27 remote from the suction container 7 to be filled with the excavated material.
The discharge flap 26 is then closed again and the exhaust blower 25 is restarted, while the hauling container 28 is moved toward the shaft opening 18. Material already excavated and newly excavated at the shaft bottom 4 during the continuous operation of the milling Transtek Document No. GE0420 drum 3 is then again conveyed via the suction line 6 into the suction container 7 until the suction container 7 is once again filled to the predetermined fill level and an empty hauling container 28 is disposed ready for loading at the end of the telescopic chute 27.
In this way, material excavated in a continuous excavating operation can be discontinuously conveyed and hauled away.
Figure 4 is a side view of another exemplary embodiment of a device according to the invention, it being noted that like elements in the exemplary embodiment of Figs. 1 to 3 and the exemplary embodiment of Fig. 4 are provided with the same reference numerals and will not all be described in more detail below, to avoid repetition. The exemplary embodiment of Fig. 4, in deviation from the exemplary embodiment of Figs. 1 to 3, has two hauling containers 28, each suspended from a respective hauling cable 29.
To alternately fill the two hauling containers 28, a pivoting chute 30 is disposed on the suction container 7 and can be oriented to fill one hauling container 28 at a time.
Figure 5 is a depiction similar to Fig. 2 of the exemplary embodiment according to Fig. 4, with the pivoting chute 30 oriented to fill one of the hauling containers 28.
Figure 6 is a depiction similar to Fig. 2 of the exemplary embodiment according to Fig. 4, with the pivoting chute 30 oriented to fill the other hauling container 28.
The operation of the exemplary embodiment according to Figs. 4 to 6 is such that the two hauling containers 28 are disposed alternately at the suction container 7, thus permitting shorter cycle times for emptying the suction container 7 than with the exemplary embodiment according to Figs. 1 to 3.
Claims (4)
1. A device for excavating a shaft (1), comprising a cutting tool (2, 3) for excavating material at a shaft bottom (4), comprising conveying means (5, 6) disposed in the operating area of the cutting tool (2, 3) and operative to convey material excavated at the shaft bottom (4) away to a transfer station comprising a single intermediate storage container (7), and comprising hauling means (28, 29) for hauling excavated material away from the intermediate storage container (7), characterized in that the conveying means comprise a suction line (6) and are provided with an exhaust blower (25) that is connected to the suction line (6) and operates to generate an air current directed from the shaft bottom (4) into the intermediate storage container (7).
2. The device as in claim 1, characterized in that the conveying means comprise a dust filter (22) disposed upstream of the exhaust blower (25) in the direction of flow of the air current.
3. The device as in claim 1 or claim 2, characterized in that the hauling means comprise a single hauling container (28).
4. The device as in claim 1 or claim 2, characterized in that the hauling means comprise two hauling containers (28) and are provided with a pivoting chute (30) that is connected by one end to the intermediate storage container (7) and can be oriented alternatingly toward one hauling container (28).
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102012025395.8A DE102012025395A1 (en) | 2012-12-24 | 2012-12-24 | Device for sinking a shaft |
| DE102012025395.8 | 2012-12-24 | ||
| PCT/EP2013/071167 WO2014102020A2 (en) | 2012-12-24 | 2013-10-10 | Device for excavating a shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2893623A1 true CA2893623A1 (en) | 2014-07-03 |
Family
ID=49378257
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2893623A Abandoned CA2893623A1 (en) | 2012-12-24 | 2013-10-10 | Device for excavating a shaft |
Country Status (10)
| Country | Link |
|---|---|
| US (1) | US20150308265A1 (en) |
| EP (1) | EP2935783A2 (en) |
| JP (1) | JP2016500411A (en) |
| CN (1) | CN104870747A (en) |
| AU (1) | AU2013369602A1 (en) |
| CA (1) | CA2893623A1 (en) |
| DE (1) | DE102012025395A1 (en) |
| RU (1) | RU2641052C2 (en) |
| WO (1) | WO2014102020A2 (en) |
| ZA (1) | ZA201504350B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102013212098B4 (en) | 2013-06-25 | 2015-11-26 | Herrenknecht Aktiengesellschaft | Device for sinking a shaft and method for sinking a shaft |
| AU2017242643B2 (en) * | 2016-04-01 | 2020-01-23 | Nk Trading And Engineering Gmbh | Drilling method and shaft drilling system |
| CN110984996B (en) * | 2020-03-03 | 2020-06-26 | 中国铁建重工集团股份有限公司 | Heading machine and muck conveying device thereof |
Family Cites Families (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3379264A (en) * | 1964-11-05 | 1968-04-23 | Dravo Corp | Earth boring machine |
| US3376942A (en) * | 1965-07-13 | 1968-04-09 | Baker Oil Tools Inc | Large hole vertical drilling apparatus |
| SU614226A1 (en) * | 1975-07-31 | 1978-07-05 | Центральный Научно-Исследовательский И Проектно-Конструкторский Институт Проходческих Машин И Комплексов Для Угольной,Горной Промышленности И Подземного Строительства | Arrangement for excavating mine shafts |
| US4186808A (en) * | 1977-06-29 | 1980-02-05 | Cox Kenneth C | Earth boring machine with crushing rollers |
| GB2028897B (en) * | 1978-08-26 | 1982-09-15 | Paurat F | Equipment for the sinking of shafts |
| EP0050954A1 (en) * | 1980-10-23 | 1982-05-05 | Cementation Research Limited | Boring tools |
| US4589502A (en) * | 1984-05-04 | 1986-05-20 | Cementation Company Of America, Incorporated | Earth boring apparatus |
| JPS61158594A (en) * | 1984-12-29 | 1986-07-18 | 株式会社大林組 | Method and device for excavating shaft |
| DE3609111A1 (en) * | 1986-03-19 | 1987-10-01 | Turmag Turbo Masch Ag | DRILLING MACHINE |
| CA2007070C (en) * | 1990-01-03 | 1996-01-23 | Kirk Mcbride Sinclair | Dry pneumatic system for hard rock shaft drilling |
| JP3241235B2 (en) * | 1995-05-01 | 2001-12-25 | 株式会社ヒメノ | Drilling method and drilling equipment |
| JP3733195B2 (en) * | 1997-02-28 | 2006-01-11 | 鉄建建設株式会社 | Vertical hole drilling rig |
| JP2974979B2 (en) * | 1997-02-28 | 1999-11-10 | 株式会社白石 | Drilling machine and drilling method for deep foundation |
| JPH11280366A (en) * | 1998-03-30 | 1999-10-12 | Chubu Electric Power Co Inc | Earth removal device for caisson type pile excavator |
| JP2000038893A (en) * | 1998-07-23 | 2000-02-08 | Kajima Corp | Shaft excavating apparatus |
| JP2000345581A (en) * | 1999-06-08 | 2000-12-12 | Kotobuki Giken Kogyo Kk | Carrying-out method for muck by muck loader |
| DE10310726B3 (en) * | 2003-03-12 | 2004-09-30 | Bauer Spezialtiefbau Gmbh | Core drilling arrangement with flushing has container for bore flushing with core material released from tube arranged in upper region of core drilling tube into which pump feeds, overflow openings |
| WO2005049966A1 (en) * | 2003-11-20 | 2005-06-02 | J.S. Redpath Limited | Earth boring apparatus for sinking shafts and method of excavating a shaft |
-
2012
- 2012-12-24 DE DE102012025395.8A patent/DE102012025395A1/en not_active Ceased
-
2013
- 2013-10-10 US US14/651,060 patent/US20150308265A1/en not_active Abandoned
- 2013-10-10 CA CA2893623A patent/CA2893623A1/en not_active Abandoned
- 2013-10-10 EP EP13777009.5A patent/EP2935783A2/en not_active Withdrawn
- 2013-10-10 WO PCT/EP2013/071167 patent/WO2014102020A2/en active Application Filing
- 2013-10-10 CN CN201380066204.9A patent/CN104870747A/en active Pending
- 2013-10-10 JP JP2015548297A patent/JP2016500411A/en active Pending
- 2013-10-10 RU RU2015127421A patent/RU2641052C2/en active
- 2013-10-10 AU AU2013369602A patent/AU2013369602A1/en not_active Abandoned
-
2015
- 2015-06-17 ZA ZA2015/04350A patent/ZA201504350B/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| AU2013369602A1 (en) | 2015-06-18 |
| WO2014102020A2 (en) | 2014-07-03 |
| WO2014102020A3 (en) | 2015-03-26 |
| CN104870747A (en) | 2015-08-26 |
| DE102012025395A1 (en) | 2014-06-26 |
| JP2016500411A (en) | 2016-01-12 |
| ZA201504350B (en) | 2016-04-28 |
| EP2935783A2 (en) | 2015-10-28 |
| RU2641052C2 (en) | 2018-01-15 |
| RU2015127421A (en) | 2017-01-25 |
| US20150308265A1 (en) | 2015-10-29 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Discontinued |
Effective date: 20210831 |
|
| FZDE | Discontinued |
Effective date: 20210831 |