CN101205719A - Deep-thick earth-rock aggregate pawl type blasting anchor device - Google Patents

Deep-thick earth-rock aggregate pawl type blasting anchor device Download PDF

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Publication number
CN101205719A
CN101205719A CN 200710178763 CN200710178763A CN101205719A CN 101205719 A CN101205719 A CN 101205719A CN 200710178763 CN200710178763 CN 200710178763 CN 200710178763 A CN200710178763 A CN 200710178763A CN 101205719 A CN101205719 A CN 101205719A
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CN
China
Prior art keywords
anchor cable
ratchet
deep
hole
rock
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Granted
Application number
CN 200710178763
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Chinese (zh)
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CN100572684C (en
Inventor
李晓
李守定
赫建明
刘艳辉
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Institute of Geology and Geophysics of CAS
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Institute of Geology and Geophysics of CAS
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Application filed by Institute of Geology and Geophysics of CAS filed Critical Institute of Geology and Geophysics of CAS
Priority to CN 200710178763 priority Critical patent/CN100572684C/en
Publication of CN101205719A publication Critical patent/CN101205719A/en
Application granted granted Critical
Publication of CN100572684C publication Critical patent/CN100572684C/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The invention provides a pawl-type blast anchoring device suitable for a deep and thick earth-rock aggregate. The invention is characterized in that: the blast control and a pawl device as well as an anchor rope are organically combined, the blast is controlled through the hole bottom of a drilling hole, the earth-rock aggregate of the hole bottom is compacted to form a relatively steady rock soil mass, a cavity is formed at the hole bottom at the same time, one end of the anchor rope taken as the anchoring section of the anchor rope is provided with a pawl; after the drilling hole is grouted, the pawl-type blast anchoring device can prevent the injecting cement paste of the anchoring section from damaging along the interface of the earth-rock aggregate, can also prevent the anchor rope from damaging along the interface of the injecting cement paste, forms the relatively steady rock soil mass at the anchoring section to ensure that the deep and thick earth-rock aggregate is reinforced.

Description

Deep-thick earth-rock aggregate pawl type blasting anchor device
Technical field geotechnical body anchoring field
Background technology is for the deep-thick earth-rock mixture, and anchor cable is the bracing means of using always, and anchor cable mainly contains three types at present: tension type, pressure-type and load decentralized.In the deep-thick earth-rock mixture, the rock mass stability buried depth is too big, and the anchorage cable anchoring section has to be placed in the soil-rock mixture, because soil-rock mixture mostly is loose media, when applying prestressing force and run duration,, thereby cause anchoring to be lost efficacy often along injecting cement paste and soil-rock mixture interfacial failure.In the deep-thick earth-rock mixture, three kinds of anchor cables and job practices thereof all have easily the shortcoming along injecting cement paste and soil-rock mixture interfacial failure.
Therefore, conventional anchorage cable anchoring technology can not satisfy the demand of deep-thick earth-rock mixture anchoring.
Summary of the invention the invention provides a kind of suitable deep-thick earth-rock aggregate pawl type blasting anchor device.It is characterized in that controlled blasting, pawl device and anchor cable organically combine, by controlled blasting at the bottom of the boring hole, densification hole subsoil rock mixture, form firm relatively geotechnical body, at the bottom of the hole, form cavity simultaneously, anchoring section as anchor cable, ratchet is installed in the anchor cable end, after the boring slip casting, and this pawl type blasting anchor device, both prevented that the anchoring section injecting cement paste was along the soil-rock mixture interfacial failure, prevent that also anchor cable from along the injecting cement paste interfacial failure, forming firm relatively geotechnical body at anchoring section again, make the deep-thick earth-rock mixture obtain reinforcing.
Deep-thick earth-rock aggregate pawl type blasting anchor device, by controlled blasting part at the bottom of the hole, ratchet part and anchor cable partly constitute, and the controlled blasting part holes 8 by soil-rock mixture 1 at the bottom of the described hole, and controlled blasting cavity 7 and densification district 6 form at the bottom of the hole; Described ratchet part is by anchor cable end ratchet 13, and ratchet opens stay cord 14 and ratchet lock tube 15 is formed; Described anchor cable part is by anchor cable body 10, and structure 11 and ground tackle 12 are formed.
Basic principle and technology: according to the geologic feature of deep-thick earth-rock mixture, its anchor device must prevent that the anchoring section injecting cement paste is along the soil-rock mixture interfacial failure, prevent that anchor cable is along the injecting cement paste interfacial failure, anchoring section must be arranged in firm relatively geotechnical body simultaneously, deep-thick earth-rock aggregate pawl type blasting anchor device, form cavity by controlled blasting at the bottom of the hole, prevent that anchorage cable anchoring section injecting cement paste is along the soil-rock mixture interfacial failure, around cavity, form the densification district simultaneously, make anchoring section be arranged in metastable geotechnical body, ratchet is installed in the anchor cable end, prevents that anchor cable is along the injecting cement paste interfacial failure.
Deep-thick earth-rock aggregate pawl type blasting anchor device, by controlled blasting part at the bottom of the hole, ratchet part and anchor cable partly constitute.
The controlled blasting part holes 8 by soil-rock mixture 1 at the bottom of the hole, and controlled blasting cavity 7 and densification district 6 form at the bottom of the hole.Use rig on side slope 2, form boring 8 in the soil-rock mixture 1, explosive is put into the hole at the bottom of, use the explosion of controlled blasting mode, form controlled blasting cavity 7 at the bottom of the hole, around cavity 7, form densification district 6.
The ratchet part is by anchor cable end ratchet 13, and ratchet opens stay cord 14 and ratchet lock tube 15 is formed.Anchor cable end ratchet 13 is fixed on the anchor cable end, and before anchor cable construction, anchor cable end ratchet 13 is by 15 lockings of ratchet lock tube, at the bottom of the anchor cable end enters into the hole behind the controlled blasting cavity 7, the pulling ratchet opens stay cord 14, opens ratchet lock tube 15, and anchor cable end ratchet 13 is opened.
The anchor cable part is by anchor cable body 10, and structure 11 and ground tackle 12 are formed.Controlled blasting cavity 7 at the bottom of the hole as anchoring section 3, is installed to anchor cable body 10 and anchor cable end ratchet 13 in the boring 8, and filling injecting cement paste 9 is installed ground tackle 12 on structure 11, apply prestressing force, finishes anchor cable construction.
Description of drawings 1: soil-rock mixture, 2: side slope, 3: anchoring section, 4: stretch-draw section, 5: anchor head, 6: densification district, 7: controlled blasting cavity at the bottom of the hole, 8: boring, 9: injecting cement paste, 10: the anchor cable body, 11: structure, 12: ground tackle, 13 anchor cable end ratchets, 14 ratchets open stay cord, 15 ratchet lock tubes
The specific embodiment 1. is used the rig pore-forming, forms boring 8 in soil-rock mixture 1.
2. explosive is put at the bottom of the hole, used the explosion of controlled blasting mode, controlled blasting cavity 7 at the bottom of the formation hole around cavity 7, forms densification district 6.
With controlled blasting cavity 7 at the bottom of the hole as anchoring section 3, with anchoring body 10 be installed to boring 8 in.
4. the pulling ratchet opens stay cord 14, opens ratchet lock tube 15, and anchor cable end ratchet 13 is opened.
5. filling injecting cement paste 9 is installed ground tackle 12 on structure 11, applies prestressing force, finishes anchor cable construction.

Claims (1)

1. the pawl type blasting anchor device of a suitable deep-thick earth-rock mixture, by controlled blasting part at the bottom of the hole, ratchet part and anchor cable partly constitute, and the controlled blasting part is by soil-rock mixture (1) at the bottom of the described hole, boring (8), controlled blasting cavity (7) and densification district (6) are formed at the bottom of the hole; Described ratchet part is by anchor cable end ratchet (13), and ratchet opens stay cord (14) and ratchet lock tube (15) is formed; Described anchor cable part is by anchor cable body (10), and structure (11) and ground tackle (12) are formed.
CN 200710178763 2007-12-05 2007-12-05 Deep-thick earth-rock aggregate pawl type blasting anchor device Expired - Fee Related CN100572684C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 200710178763 CN100572684C (en) 2007-12-05 2007-12-05 Deep-thick earth-rock aggregate pawl type blasting anchor device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 200710178763 CN100572684C (en) 2007-12-05 2007-12-05 Deep-thick earth-rock aggregate pawl type blasting anchor device

Publications (2)

Publication Number Publication Date
CN101205719A true CN101205719A (en) 2008-06-25
CN100572684C CN100572684C (en) 2009-12-23

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN 200710178763 Expired - Fee Related CN100572684C (en) 2007-12-05 2007-12-05 Deep-thick earth-rock aggregate pawl type blasting anchor device

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CN (1) CN100572684C (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102465529A (en) * 2010-11-08 2012-05-23 邹宗煊 Automatically extended large-head wavy edge jet grouting anchor pile for pile end anchor bar, and construction method thereof
CN103132520A (en) * 2011-11-30 2013-06-05 兰州大学 Pipe type anchor rod with horn-shaped bottom end
CN103132515A (en) * 2011-11-30 2013-06-05 兰州大学 Calabash type anchor rod
CN105672311A (en) * 2016-03-28 2016-06-15 重庆建工市政交通工程有限责任公司 Novel anchor rod and construction method thereof
CN108360512A (en) * 2018-02-14 2018-08-03 重庆恩光科技有限公司 The anchor of high tensile
CN108385680A (en) * 2018-02-14 2018-08-10 重庆恩光科技有限公司 The anti-drag anchoring device of stable structure type
CN108533299A (en) * 2018-04-19 2018-09-14 湖北沛函建设有限公司 A method of explosion and anchors rock mass anchor pole
CN111809621A (en) * 2020-07-24 2020-10-23 华彬 Mechanical linkage anti-pulling anchor rod
CN112983462A (en) * 2019-12-12 2021-06-18 南京宝地梅山产城发展有限公司 Method for supporting integral arch body of underground roadway

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2274653Y (en) * 1996-11-27 1998-02-18 福建建专基础工程公司 Umbrella type anchor pin
CN2423318Y (en) * 2000-06-01 2001-03-14 东北大学 Explosion expanded rockbolt
JP3878183B2 (en) * 2004-02-16 2007-02-07 株式会社三和技研 Adjustment method of angle correction pedestal and angle correction pedestal

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102465529A (en) * 2010-11-08 2012-05-23 邹宗煊 Automatically extended large-head wavy edge jet grouting anchor pile for pile end anchor bar, and construction method thereof
CN103132520A (en) * 2011-11-30 2013-06-05 兰州大学 Pipe type anchor rod with horn-shaped bottom end
CN103132515A (en) * 2011-11-30 2013-06-05 兰州大学 Calabash type anchor rod
CN103132515B (en) * 2011-11-30 2015-07-22 兰州大学 Calabash type anchor rod
CN105672311A (en) * 2016-03-28 2016-06-15 重庆建工市政交通工程有限责任公司 Novel anchor rod and construction method thereof
CN108360512A (en) * 2018-02-14 2018-08-03 重庆恩光科技有限公司 The anchor of high tensile
CN108385680A (en) * 2018-02-14 2018-08-10 重庆恩光科技有限公司 The anti-drag anchoring device of stable structure type
CN108533299A (en) * 2018-04-19 2018-09-14 湖北沛函建设有限公司 A method of explosion and anchors rock mass anchor pole
CN108533299B (en) * 2018-04-19 2019-07-30 湖北沛函建设有限公司 A method of explosion and anchors rock mass anchor pole
CN112983462A (en) * 2019-12-12 2021-06-18 南京宝地梅山产城发展有限公司 Method for supporting integral arch body of underground roadway
CN111809621A (en) * 2020-07-24 2020-10-23 华彬 Mechanical linkage anti-pulling anchor rod

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Granted publication date: 20091223

Termination date: 20121205