US3841421A - Apparatus for boring a pit - Google Patents

Apparatus for boring a pit Download PDF

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Publication number
US3841421A
US3841421A US00345806A US34580673A US3841421A US 3841421 A US3841421 A US 3841421A US 00345806 A US00345806 A US 00345806A US 34580673 A US34580673 A US 34580673A US 3841421 A US3841421 A US 3841421A
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United States
Prior art keywords
cutter head
hollow body
water
drive shaft
pit
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.)
Expired - Lifetime
Application number
US00345806A
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English (en)
Inventor
K Matsushita
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kumagai Gumi Co Ltd
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Kumagai Gumi Co Ltd
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Filing date
Publication date
Application filed by Kumagai Gumi Co Ltd filed Critical Kumagai Gumi Co Ltd
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    • 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
    • E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
    • E21B21/01—Arrangements for handling drilling fluids or cuttings outside the borehole, e.g. mud boxes
    • 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
    • E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
    • E21B21/12—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor using drilling pipes with plural fluid passages, e.g. closed circulation systems
    • 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
    • E21B7/18—Drilling by liquid or gas jets, with or without entrained pellets

Definitions

  • the present invention relates to a method and apparatus for boring a pit and more particularly to such a method and apparatus in which earth chips are efficiently removed from a pit surface.
  • pit as used herein includes a vertical bore formed in the earth as well as a tunnel and underground drift.
  • chis produced in boring work have been taken out of the pit utilizing the action of earth boring machine and air lift means.
  • the earth boring machine includes cutter means which can to a certain degree agitate the materials around the pit surface and the air lift means applies further agitation to the materials and draws them under vacuum from the pit.
  • Another object of the present invention is to provide a method and apparatus for boring a pit in the earth, in which all earth chips can be removed from pit surface.
  • a method for boring a pit in which pressurized fluid is discharged toward pit surface to remove earth chips from the pit surface, and the earth chips are taken out of the pit together with said fluid.
  • an apparatus comprising a cylindrical body, a cutter head rotatably mounted on one end of said cylndrical body and having cutter means provided thereon, means for driving said cutter head, fluid spray nozzle means having a plurality of nozzles directed substantially axially outwardly of said body, means for supplying fluid under pressure to said nozzle means, and air lift means for exhausting fluid from the pit.
  • the nozzle means is provided axially inwardly of the cutter head and stationary secured t said body.
  • the nozzle means is provided in said cutter head.
  • FIG. 1 is a vertical sectional view of the apparatus in accordance with one embodiment of the present inventron
  • FIG. 2 is a crosssectional viewi taken substantially along the line Il II in FIG. 1;
  • FIG. 3 is a cross sectional view taken substantially along the line llIIII in FIG. 1;
  • FIG. 4 is a fragmentary view particularly showing fluid spray nozzle arrangements in the apparatus shown in FIG. 1;
  • FIG. 5 is a vertical sectional view similar to FIG. 1 but showing another embodiment of the present invention.
  • FIG. 6 is a cross-sectional view of the apparatus shown in FIG. 5 taken substantially along the line VIVl in FIG. 5;
  • FIG. 7 is a cross-sectional view of the apparatus shown in FIG. 5 taken substantially along the line VII- --VII in FIG. 5;
  • FIG. 8 is a fragmentary sectional view particularly showing fluid spray nozzle arrangement in the appasratus shown in FIG. 5.
  • the apparatus includes a cylindrical body 10 and a cutter head 12 which has a drive shaft 14 co-axially and rotatably supported in said body 10 by support bearing arms 18.
  • the drive shaft 14 extendsupwardly through a platform 15 located on the ground and is connected to a drive means 16 on the platform 15.
  • the cutter head 12 has radially extending cutter blade supporting spider arms 22, each of which supports a plurality of cutter blades 20 as shown in FIGS. 1 and 2.
  • a fluid spray nozzle ring 30 having aplurality of downwardly directed nozzle openings 24.
  • the nozzle ring 30 is suit-.
  • a water supply pipe 34 opens to the interior of the body 10 for supplying water to fill the pit formed by the apparatus.
  • water is continuously supplied through. the water supply pipe 34 into the body 10 so that the inteerior of the body 10 is filled by water to a level as shown by the reference numeral 355 in FIG. I.
  • the drive means 16 is energized to drive the cutter head 12 through the drive shaft 14, and water is supplied under pressure through the conduits 26 and 28 into the nozzle ring 30 and then discharged downwardly through the nozzle openings 24. Further, pressurized air is supplied through the conduits 32 to the lower ends of the air lift pipes 31 to form upward fluid flow therein.
  • the cutter blades 20 mounted on the supporting arms 22 of the cutter head 12 cut the earth to form a pit and the earth chips thus formed are entrained in turbulent water flow formed by the water spray around the cutter head 12.
  • the turbulent water flow containing the earth chips are then drawn into the air lift pipes 31 and transported upwardly therethrough to be discharged on the ground.
  • FIGS. 4 through 6 there is shown a second embodiment of the present invention.
  • the apparatus shown in FIGS. 4 through 6 includes a cylindrical body as in the previous embodiment.
  • a cutter head 112 is disposed at one end of the body 110 and has a drive shaft 114 which co-axially extends through the body 110 and rotatably supported by support bearing arms 118.
  • the drive shaft 114 further extends upwardly through a platform 115 provided on the ground and is connected to a drive means 116 on the platform 115.
  • the cutter head 112 has a plurality of radially extending arms 122 and a plurality of cutter blades 120 are mounted on alternate ones of the arms 122.
  • the remaining ones of the arms 122 are provided with a plurality of nozzle openings 124 which are connected, through a water passage 136a formed in each of the arms 122 having the nozzle openings 124 and a water conduit 136 provided in said drive shaft 114, to a pressurized water supply pipe 126.
  • a pair of air lift pipes 131 are disposed in said body 110 with one end of each pipe opening just behind the cutter head 112. The other end of each pipe 131 opens through a flexible pipe 131a to the discharging spot on the ground.
  • a pressurized or compressed air supply tube 132 is connected to the lower end portion of each of the air lift pipe 131 for supplying compressed air to the pipe 131 to form an upward fluid flow therein.
  • a water conduit 134 is further provided for continuously supplying water to fill ,the pit and the interior of the body 110 to a level as shown by the reference numeral 135.
  • the operation of the second embodiment is substantially similasr to the previous embodiment, so that the descriptions of the operation of the apparatus will be omitted.
  • An apparatus for boring a pit in earth comprising in ccombination a cylindrical hollow body a rotary cutting means having a cutter head (12) projecting over the bottom end of said hollow body and a drive shaft (14) coaxially extending through said hollow body from the center of said cutter head, said drive shaft being rotably supported at the lower portion thereof by bearing means (18) secured to said hollow body, said cutter head having radially extending spider arms (22) which supports a plurality of cutter blades motor means (16) connected to said drive shaft (14) to rotate said cutter head, water spray nozzle means including a circular tube disposed at the adjacent upper area of said cutter head and formed with a plruality of nozzle openings (24) directed substantially downwardly for discharging a water jet through said spider arms and water conduit means (28) disposed in the interior of said hollow body for conducting saids circular tube to a source of pressurized water disposed on the ground, an air lift pipe (31) having one end open adjacent the upper area of said cutter head and the other end communicating with a discharging spot on the
  • An apparatus for boring a pit in earth comprising in combination a cylindrical hollow body a rotary cutting means having a cutter head (112) projecting over the bottom end of said hollow body and a drive shaft (114) coaxially extending through said hollow body from the center of said cutter head, said drive shaft being rotatably supported at the lower portion thereof by bearing means (118) secured to said hollow body, said cutter head having a plurality of radially extending spider arms (122), alternate ones of said arms having cutter blades thereon and each of the re maining ones of said arms having nozzle openings (124) and a pasage (a) formed therein, said drive shaft having therein an axially extending passage (136) which is connected at one end to a source of pressurized water and at the other end to said passage (136a) in said arms to introduce the pressurized water to said nozzle opening there'through, said nozzle means being directed substantially downwardly for discharging a water jet into said pit, an air lift pipe (131) having one end open at adjacent upper area of said

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Mechanical Engineering (AREA)
  • Earth Drilling (AREA)
  • Excavating Of Shafts Or Tunnels (AREA)
US00345806A 1972-11-11 1973-03-28 Apparatus for boring a pit Expired - Lifetime US3841421A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP47112568A JPS4970404A (ja) 1972-11-11 1972-11-11

Publications (1)

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US3841421A true US3841421A (en) 1974-10-15

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US00345806A Expired - Lifetime US3841421A (en) 1972-11-11 1973-03-28 Apparatus for boring a pit

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US (1) US3841421A (ja)
JP (1) JPS4970404A (ja)
GB (1) GB1422693A (ja)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3958650A (en) * 1975-05-28 1976-05-25 The United States Of America As Represented By The Secretary Of The Interior Drilling system using weight of mud
US3991838A (en) * 1974-05-31 1976-11-16 Clark Barry F Drill sampling diversion unit
US4076085A (en) * 1974-05-31 1978-02-28 Clark Barry F Drill sampling diversion unit
US4296824A (en) * 1978-06-29 1981-10-27 Hughes Tool Company Nozzle placement in large diameter earth boring bits
FR2538445A1 (fr) * 1982-12-23 1984-06-29 Komatsu Mfg Co Ltd Engin excavateur et propulseur pour poser des canalisations souterraines
US4534426A (en) * 1983-08-24 1985-08-13 Unique Oil Tools, Inc. Packer weighted and pressure differential method and apparatus for Big Hole drilling
US4650013A (en) * 1986-04-28 1987-03-17 Hoeft Arthur P Chip sampler
US5174394A (en) * 1988-03-31 1992-12-29 Philipp Holzmann Aktiengesellschaft Apparatus for cleaning layers of earth
US6050352A (en) * 1996-11-08 2000-04-18 Thompson; Michael C. Drilling technique utilizing drilling fluids directed on low angle cutting faces
WO2015044764A1 (en) * 2013-09-30 2015-04-02 Vetco Gray Scandinavia As Self-burying foundation arrangement

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3216742C1 (de) * 1982-05-05 1983-12-15 Bergbau-Bohrgesellschaft Rhein-Ruhr m.b.H., 4350 Recklinghausen Verfahren und Vorrichtung zum Spülbohren von Tiefbohrungen, insbesondere Schachtbohrverfahren zum Abteufen von Schächten in nichtstandfestem Gebirge
BE1011744A4 (nl) * 1998-02-13 1999-12-07 Dredging Int Werkwijze voor het doorheen grond-en rotslagen werken met bagger-of graafwerktuigen en volgens deze werkwijze werkende inrichtingen.

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US146202A (en) * 1874-01-06 Improvement in earth-boring and tube-sinking apparatus
US587126A (en) * 1897-07-27 Ieans for sinking caissons in the ground
US722764A (en) * 1902-06-26 1903-03-17 Borsig A Pipe-coupling for deep-boring devices.
US825857A (en) * 1906-02-10 1906-07-10 James Moran Tunnel-boring apparatus.
US1853379A (en) * 1926-12-29 1932-04-12 Alexander G Rotinoff Caisson and method of and means for sinking the same
US2866622A (en) * 1954-10-08 1958-12-30 Robert W Murray Electric flame boring apparatus
US3161243A (en) * 1960-07-22 1964-12-15 Frank F Davis Drilling system with plural below ground motors
US3509949A (en) * 1966-11-09 1970-05-05 Tone Boring Co Excavation of trenches for buried walls
US3648788A (en) * 1970-07-06 1972-03-14 Mckinney Drilling Co Drilling apparatus

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1060817B (de) * 1957-10-24 1959-07-09 Masch Und Bohrgeraete Fabrik Lufthebebohrgestaenge fuer indirekte Spuelung

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US146202A (en) * 1874-01-06 Improvement in earth-boring and tube-sinking apparatus
US587126A (en) * 1897-07-27 Ieans for sinking caissons in the ground
US722764A (en) * 1902-06-26 1903-03-17 Borsig A Pipe-coupling for deep-boring devices.
US825857A (en) * 1906-02-10 1906-07-10 James Moran Tunnel-boring apparatus.
US1853379A (en) * 1926-12-29 1932-04-12 Alexander G Rotinoff Caisson and method of and means for sinking the same
US2866622A (en) * 1954-10-08 1958-12-30 Robert W Murray Electric flame boring apparatus
US3161243A (en) * 1960-07-22 1964-12-15 Frank F Davis Drilling system with plural below ground motors
US3509949A (en) * 1966-11-09 1970-05-05 Tone Boring Co Excavation of trenches for buried walls
US3648788A (en) * 1970-07-06 1972-03-14 Mckinney Drilling Co Drilling apparatus

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3991838A (en) * 1974-05-31 1976-11-16 Clark Barry F Drill sampling diversion unit
US4076085A (en) * 1974-05-31 1978-02-28 Clark Barry F Drill sampling diversion unit
US3958650A (en) * 1975-05-28 1976-05-25 The United States Of America As Represented By The Secretary Of The Interior Drilling system using weight of mud
US4296824A (en) * 1978-06-29 1981-10-27 Hughes Tool Company Nozzle placement in large diameter earth boring bits
FR2538445A1 (fr) * 1982-12-23 1984-06-29 Komatsu Mfg Co Ltd Engin excavateur et propulseur pour poser des canalisations souterraines
US4534426A (en) * 1983-08-24 1985-08-13 Unique Oil Tools, Inc. Packer weighted and pressure differential method and apparatus for Big Hole drilling
US4650013A (en) * 1986-04-28 1987-03-17 Hoeft Arthur P Chip sampler
US5174394A (en) * 1988-03-31 1992-12-29 Philipp Holzmann Aktiengesellschaft Apparatus for cleaning layers of earth
US6050352A (en) * 1996-11-08 2000-04-18 Thompson; Michael C. Drilling technique utilizing drilling fluids directed on low angle cutting faces
WO2015044764A1 (en) * 2013-09-30 2015-04-02 Vetco Gray Scandinavia As Self-burying foundation arrangement

Also Published As

Publication number Publication date
JPS4970404A (ja) 1974-07-08
GB1422693A (en) 1976-01-28

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