GB2014219A - Method of and Apparatus for Sinking Shafts - Google Patents

Method of and Apparatus for Sinking Shafts

Info

Publication number
GB2014219A
GB2014219A GB7905983A GB7905983A GB2014219A GB 2014219 A GB2014219 A GB 2014219A GB 7905983 A GB7905983 A GB 7905983A GB 7905983 A GB7905983 A GB 7905983A GB 2014219 A GB2014219 A GB 2014219A
Authority
GB
United Kingdom
Prior art keywords
guide tube
drill bit
shafts
sinking
cuttings
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.)
Withdrawn
Application number
GB7905983A
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.)
Weiss R G A
Original Assignee
Weiss R G A
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Weiss R G A filed Critical Weiss R G A
Priority to GB7905983A priority Critical patent/GB2014219A/en
Publication of GB2014219A publication Critical patent/GB2014219A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B7/00—Special methods or apparatus for drilling
    • E21B7/28—Enlarging drilled holes, e.g. by counterboring

Abstract

A method of sinking shafts is described in which a narrow diameter shaft is first drilled to within a required verticality limit and is thereafter lined with a guide tube 1 which is secured in relation to the ground, and a large diameter, annular frustoconical drill bit 2 is rotated about the guide tube 1 which constitutes a prepared axis for the drill bit 2. Drilling apparatus is also disclosed comprising the said drill bit 2, means 6, 8 for rotating it about the guide tube and means 15 for lowering the bit. The cuttings which arise during drilling can be removed through the guide tube 1 if it is formed with holes or slots thereby falling to the bottom of the tube whence they can be removed, or the cuttings can be removed upwardly, preferably in the form of a slurry in water or drilling fluid using an air lift system and/or pump means. The invention is particularly suitable for accurately sinking into the underground workings shafts of sufficiently large diameter to accommodate cages for transporting men and materials. <IMAGE>
GB7905983A 1977-11-22 1979-02-20 Method of and Apparatus for Sinking Shafts Withdrawn GB2014219A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB7905983A GB2014219A (en) 1977-11-22 1979-02-20 Method of and Apparatus for Sinking Shafts

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB4867577 1977-11-22
GB7905983A GB2014219A (en) 1977-11-22 1979-02-20 Method of and Apparatus for Sinking Shafts

Publications (1)

Publication Number Publication Date
GB2014219A true GB2014219A (en) 1979-08-22

Family

ID=26266309

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7905983A Withdrawn GB2014219A (en) 1977-11-22 1979-02-20 Method of and Apparatus for Sinking Shafts

Country Status (1)

Country Link
GB (1) GB2014219A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0741227A3 (en) * 1995-05-01 1997-11-19 Hitachi Construction Machinery Co., Ltd. Borehole boring method and machine
FR2788557A1 (en) * 1999-01-15 2000-07-21 Pierre Devaux Mechanically drilling large bore vertical tunnels and holes, in which brace is prestressed axially in traction by its free end so it imposes axial load on drill
CN104563877A (en) * 2014-12-29 2015-04-29 无锡中地地质装备有限公司 Reamer belt structure with reaming function
CN108457596A (en) * 2018-04-11 2018-08-28 煤炭工业合肥设计研究院有限责任公司 It is a kind of to bore Self-sinking type borehole wall guard system certainly
CN112855165A (en) * 2021-04-02 2021-05-28 中国铁建重工集团股份有限公司 Non-explosive excavation and coring device for vertical shaft

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0741227A3 (en) * 1995-05-01 1997-11-19 Hitachi Construction Machinery Co., Ltd. Borehole boring method and machine
CN1063515C (en) * 1995-05-01 2001-03-21 日立建机株式会社 Borehole boring method and machine
FR2788557A1 (en) * 1999-01-15 2000-07-21 Pierre Devaux Mechanically drilling large bore vertical tunnels and holes, in which brace is prestressed axially in traction by its free end so it imposes axial load on drill
CN104563877A (en) * 2014-12-29 2015-04-29 无锡中地地质装备有限公司 Reamer belt structure with reaming function
CN108457596A (en) * 2018-04-11 2018-08-28 煤炭工业合肥设计研究院有限责任公司 It is a kind of to bore Self-sinking type borehole wall guard system certainly
CN112855165A (en) * 2021-04-02 2021-05-28 中国铁建重工集团股份有限公司 Non-explosive excavation and coring device for vertical shaft
CN112855165B (en) * 2021-04-02 2022-06-07 中国铁建重工集团股份有限公司 Non-explosive excavation and coring device for vertical shaft

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)