[go: up one dir, main page]

WO1998057035A1 - Boulon d'ancrage - Google Patents

Boulon d'ancrage Download PDF

Info

Publication number
WO1998057035A1
WO1998057035A1 PCT/GB1998/001569 GB9801569W WO9857035A1 WO 1998057035 A1 WO1998057035 A1 WO 1998057035A1 GB 9801569 W GB9801569 W GB 9801569W WO 9857035 A1 WO9857035 A1 WO 9857035A1
Authority
WO
WIPO (PCT)
Prior art keywords
shank
slot
elongate member
rock bolt
washer
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.)
Ceased
Application number
PCT/GB1998/001569
Other languages
English (en)
Inventor
Arturo Benedetto Giorgio Pastorino
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.)
STEELEDALE GROUP Ltd
Original Assignee
STEELEDALE GROUP Ltd
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 STEELEDALE GROUP Ltd filed Critical STEELEDALE GROUP Ltd
Priority to AU76669/98A priority Critical patent/AU746675B2/en
Priority to CA002293518A priority patent/CA2293518A1/fr
Publication of WO1998057035A1 publication Critical patent/WO1998057035A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D21/00—Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection
    • E21D21/0026—Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection characterised by constructional features of the bolts
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D21/00—Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection
    • E21D21/008—Anchoring or tensioning means

Definitions

  • This invention relates to a rock bolt.
  • the invention provides, in the first instance, a rock bolt shank which includes an
  • elongate member in which is formed at least one longitudinally extending slot.
  • the slot may spiral along the length of the elongate member or may extend in any
  • the slot is straight and extends substantially parallel to a longitudinal axis of the elongate member.
  • the slot may have any suitable profile in cross section.
  • the slot may for example by U- shaped.
  • the slot is substantially closed on itself with a relatively narrow slit at a surface of the elongate member and forms a substantially closed passage inside the
  • the slot in this example of the invention, may have a substantially
  • the elongate member may be threaded around at least part of the slot.
  • the slot may have a tube in it.
  • the slot may be at least partially covered or closed in any suitable way for
  • the shank may include a washer which is engaged with the elongate member and sealing
  • the washer may include a hole or an inlet device through which a settable substance such as a grout or resin may be injected.
  • the invention extends, in the second instance, to a rock bolt which includes a shank, at
  • the shank is preferably of the aforementioned kind.
  • the invention also extends to a method of forming a rock bolt shank which includes the steps of rolling at least one longitudinally extending slot in an elongate member and
  • the method may include the step of locating a tube in the slot.
  • the method may include the step of subjecting the elongate member to a rolling process
  • the slot may be
  • the method may include the steps of engaging an expanding anchor mechanism with the shank at one end of the shank and a washer and a nut with a threaded opposing end of
  • Figure 1 schematically illustrates successive stages in the formation of a profiled shank for use in a rock bolt according to the invention
  • Figure 2 is a side view of a rock bolt shank according to one form of the invention.
  • Figure 3 is a cross-sectional view of the shank of Figure 2;
  • Figure 4 is a side view of a rock bolt shank according to a different form of the
  • Figure 5 is a cross-sectional view of the shank shown in Figure 4.
  • Figure 6 is a side view of an assembled rock bolt according to the invention illustrating
  • FIG. 1 of the accompanying drawings schematically illustrates five sets of rollers 10 A, 10B, IOC, 10D and 10E, respectively and a rotatable sheave 12 which is driven through a gear mechanism by means of an electric motor, not shown.
  • An elongate member 14 of appropriate composition and cross-section e.g. round bar
  • the round bar 14 of an appropriate diameter, is fed from a coil, not shown, through the rollers and around the sheave.
  • the round bar 14 is formed from steel which can be processed, as
  • Each pair of the rollers 10A to 10E is designed to shape the round bar into a
  • the profile 14D has a slot 18
  • shaped slot is closed substantially onto itself and has a tear- drop shape 20 in cross section.
  • a relatively narrow slit 22 extends on the outer surface of the round bar along
  • the rotating sheave 12 draws the bar through the rollers in a manner which is known in the art and which consequently is not further described herein.
  • the round bar is formed continuously with the slot and thereafter is straightened and cut
  • a thread can be rolled over all or
  • Figure 2 illustrates a portion of a shank 24 of a rock bolt according to one form of the
  • Figures 4 and 5 are views similar to Figures 2 and 3 respectively and illustrate a shank 26. In this case, though use is made of a profile which is similar to the profile 14D.
  • thin walled plastic tube 28 is located in the slot along the length of the shank 26.
  • a substantially closed passage can be provided in any other way. For example once a
  • Figure 6 illustrates from the side a rock bolt 30 constructed using a shank 24 of the kind
  • the rock bolt has an expanding anchor mechanism 32 engaged with
  • a washer 34 is engaged with an opposed end of the shank and a nut 36 is threadedly engaged with thread 38 on this end of the shank.
  • the washer 34 is domed and includes an inlet aperture 40 which may, in practice, accommodate a filler valve of any appropriate kind e.g. a one-way valve.
  • An inner surface of the washer has a flexible sealing disc 42, made for example of foam rubber,
  • the rock bolt In use the rock bolt is inserted into a hole 44 formed in a rock face 46.
  • the nut 36 is tightened and the mechanism 32 is expanded into frictional contact with a wall of the hole. This is substantially in accordance with conventional techniques and provides the so-called "temporary" support. Thereafter a grout or any other suitable settable medium
  • rock bolt of the invention thus makes it possible to provide a temporary support of the kind referred to in the preamble of this specification and to make use of the same

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Piles And Underground Anchors (AREA)

Abstract

Boulon d'ancrage (30) comportant une tige (24), au moins une fente (18) s'étendant dans le sens de la longueur de la tige, un mécanisme d'ancrage (32) s'évasant à une extrémité de la tige, une rondelle (34) à une extrémité opposée de la tige et un écrou (36) passé dans des filets (38) situés au moins à ladite extrémité opposée de la tige.
PCT/GB1998/001569 1997-06-12 1998-05-28 Boulon d'ancrage Ceased WO1998057035A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AU76669/98A AU746675B2 (en) 1997-06-12 1998-05-28 A rock bolt
CA002293518A CA2293518A1 (fr) 1997-06-12 1998-05-28 Boulon d'ancrage

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ZA97/5190 1997-06-12
ZA975190 1997-06-12

Publications (1)

Publication Number Publication Date
WO1998057035A1 true WO1998057035A1 (fr) 1998-12-17

Family

ID=25586444

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB1998/001569 Ceased WO1998057035A1 (fr) 1997-06-12 1998-05-28 Boulon d'ancrage

Country Status (3)

Country Link
AU (1) AU746675B2 (fr)
CA (1) CA2293518A1 (fr)
WO (1) WO1998057035A1 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102011601A (zh) * 2010-11-03 2011-04-13 河南理工大学 快速锚索枪
WO2011135597A1 (fr) * 2010-04-28 2011-11-03 L.T.M. S.R.L. Lavorazione Tubi E Manicotti Élément de renfort pour consolider une paroi d'excavation
WO2011153810A1 (fr) * 2010-06-10 2011-12-15 He Manchao Boulon d'ancrage à résistance constante et à grande déformation
CN103696791A (zh) * 2014-01-16 2014-04-02 湖南科技大学 一种用于控制深部岩体的锚固吸能锚杆装置
US8714883B2 (en) 2009-03-10 2014-05-06 Sandvik Intellectual Property Ab Friction bolt
EP3159554A1 (fr) 2015-10-23 2017-04-26 HILTI Aktiengesellschaft Procede d'application d'une cheville extensible sur un substrat, une masse durcissable etant inseree dans l'espace annulaire autour de la cheville extensible
EP3189901A1 (fr) 2016-01-11 2017-07-12 HILTI Aktiengesellschaft Injecteur destine a remplir un espace annulaire autour d'un boulon d'ancrage

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4183699A (en) * 1978-05-18 1980-01-15 Donan David C Jr Washer/gasket for mine roof bolt assembly
US4247223A (en) * 1977-09-20 1981-01-27 Kubota, Ltd. Rock bolt
EP0265283A1 (fr) * 1986-10-23 1988-04-27 JOE SANTA & ASSOCIATES PTY. LTD. Boulon d'ancrage pour roches
DE4024869A1 (de) * 1989-08-10 1991-02-14 Magyar Aluminium Hydraulischer selbstbohr-gesteinanker
US5244314A (en) * 1991-06-27 1993-09-14 Jennmar Corporation Expansion assembly
CA2130843A1 (fr) * 1993-08-30 1995-03-01 Kenneth Douglas Kynoch Boulon d'ancrage

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2020195A (en) * 1994-05-24 1995-11-30 Ani Corporation Limited, The Post-grouted rock bolt

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4247223A (en) * 1977-09-20 1981-01-27 Kubota, Ltd. Rock bolt
US4183699A (en) * 1978-05-18 1980-01-15 Donan David C Jr Washer/gasket for mine roof bolt assembly
EP0265283A1 (fr) * 1986-10-23 1988-04-27 JOE SANTA & ASSOCIATES PTY. LTD. Boulon d'ancrage pour roches
DE4024869A1 (de) * 1989-08-10 1991-02-14 Magyar Aluminium Hydraulischer selbstbohr-gesteinanker
US5244314A (en) * 1991-06-27 1993-09-14 Jennmar Corporation Expansion assembly
CA2130843A1 (fr) * 1993-08-30 1995-03-01 Kenneth Douglas Kynoch Boulon d'ancrage
US5688077A (en) * 1993-08-30 1997-11-18 Cape Town Iron And Steel Works (Pty) Limited Rock anchor bolt

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8714883B2 (en) 2009-03-10 2014-05-06 Sandvik Intellectual Property Ab Friction bolt
WO2011135597A1 (fr) * 2010-04-28 2011-11-03 L.T.M. S.R.L. Lavorazione Tubi E Manicotti Élément de renfort pour consolider une paroi d'excavation
WO2011153810A1 (fr) * 2010-06-10 2011-12-15 He Manchao Boulon d'ancrage à résistance constante et à grande déformation
US8974151B2 (en) 2010-06-10 2015-03-10 Manchao He Constant-resistance large-deformation anchor rod
CN102011601A (zh) * 2010-11-03 2011-04-13 河南理工大学 快速锚索枪
CN103696791A (zh) * 2014-01-16 2014-04-02 湖南科技大学 一种用于控制深部岩体的锚固吸能锚杆装置
CN103696791B (zh) * 2014-01-16 2016-06-29 湖南科技大学 一种用于控制深部岩体的锚固吸能锚杆装置
EP3159554A1 (fr) 2015-10-23 2017-04-26 HILTI Aktiengesellschaft Procede d'application d'une cheville extensible sur un substrat, une masse durcissable etant inseree dans l'espace annulaire autour de la cheville extensible
WO2017067945A1 (fr) 2015-10-23 2017-04-27 Hilti Aktiengesellschaft Procédé de fixation d'un élément d'ancrage à expansion sur un substrat, selon lequel une matière durcissable est introduite dans l'espace annulaire autour l'élément d'ancrage à expansion
US10202999B2 (en) 2015-10-23 2019-02-12 Hilti Aktiengesellschaft Method for fixing an expansion anchor to a substrate, in which a curable mass is introduced in the annular space around the expansion anchor
EP3189901A1 (fr) 2016-01-11 2017-07-12 HILTI Aktiengesellschaft Injecteur destine a remplir un espace annulaire autour d'un boulon d'ancrage
WO2017121706A1 (fr) 2016-01-11 2017-07-20 Hilti Aktiengesellschaft Injecteur destiné à remplir un espace annulaire autour d'un boulon d'ancrage

Also Published As

Publication number Publication date
AU7666998A (en) 1998-12-30
AU746675B2 (en) 2002-05-02
CA2293518A1 (fr) 1998-12-17

Similar Documents

Publication Publication Date Title
CA2622806C (fr) Ancrage par cable ameliore
CA2733829C (fr) Cable d'ancre pour la roche
JPH0519640B2 (fr)
CN1118045A (zh) 加固锚栓
AU746675B2 (en) A rock bolt
CN1076506A (zh) 挠性防护螺栓
CN109477383B (zh) 一种抗腐蚀可缩锚杆
AU674788B2 (en) Anchor bolt for stabilising rock strata
KR102028393B1 (ko) 파형관 보강 앵커의 시공방법
JP3769367B2 (ja) 既設管のライニング方法
US9267376B2 (en) Manufacture of cable bolts
AU770287B2 (en) Tube-formed rock bolt
DE3844417C2 (de) Verfahren zum Herstellen eines nachspannbaren Verpreßankers mit Dauerkorrosionsschutz sowie dadurch hergestellter Verpreßanker
KR102647436B1 (ko) 주름관 앵커의 인장재 보강 구조 및 그 시공방법
WO1999056001A1 (fr) Dispositif pour mur de roche
KR20020018528A (ko) 프리케스트 앙카 공법 및 장치
JP3759089B2 (ja) グラウトホースおよびアンカーケーブル
JP2844313B2 (ja) 地盤アンカー用パッカー
JPS605120Y2 (ja) ロツクボルト
JPH0532435U (ja) ロツクボルト
SU1740681A1 (ru) Разжимной трубчатый анкер и способ его изготовлени
JPH10168918A (ja) 既設マンホールにおける側面孔の修繕または増設工事用の嵌付け筒体装置
AU754805B2 (en) A bolt and attachment, and a method of fitting the attachment
JPH06167022A (ja) 被圧水下におけるアンカー定着部の止水方法
JPS6115237B2 (fr)

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): AL AM AT AU AZ BA BB BG BR BY CA CH CN CU CZ DE DK EE ES FI GB GE GH GM GW HU ID IL IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MD MG MK MN MW MX NO NZ PL PT RO RU SD SE SG SI SK SL TJ TM TR TT UA UG US UZ VN YU ZW

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): GH GM KE LS MW SD SZ UG ZW AM AZ BY KG KZ MD RU TJ TM AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE BF BJ CF CG CI CM GA GN ML MR NE SN TD TG

DFPE Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101)
121 Ep: the epo has been informed by wipo that ep was designated in this application
ENP Entry into the national phase

Ref document number: 2293518

Country of ref document: CA

Ref country code: CA

Ref document number: 2293518

Kind code of ref document: A

Format of ref document f/p: F

WWE Wipo information: entry into national phase

Ref document number: 09445431

Country of ref document: US

WWE Wipo information: entry into national phase

Ref document number: 76669/98

Country of ref document: AU

DFPE Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101)

Free format text: (EXCEPT EP (CY))

NENP Non-entry into the national phase

Ref country code: JP

Ref document number: 1999501828

Format of ref document f/p: F

REG Reference to national code

Ref country code: DE

Ref legal event code: 8642

122 Ep: pct application non-entry in european phase
WWG Wipo information: grant in national office

Ref document number: 76669/98

Country of ref document: AU