CN106640160B - A kind of left-handed nothing indulges muscle overall length high pre-stress anchor pole and its construction technology - Google Patents
A kind of left-handed nothing indulges muscle overall length high pre-stress anchor pole and its construction technology Download PDFInfo
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- CN106640160B CN106640160B CN201610937567.0A CN201610937567A CN106640160B CN 106640160 B CN106640160 B CN 106640160B CN 201610937567 A CN201610937567 A CN 201610937567A CN 106640160 B CN106640160 B CN 106640160B
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- 238000005516 engineering process Methods 0.000 title claims abstract description 19
- 210000003205 muscle Anatomy 0.000 title claims abstract description 19
- 238000010276 construction Methods 0.000 title claims abstract description 15
- 229920005989 resin Polymers 0.000 claims abstract description 48
- 239000011347 resin Substances 0.000 claims abstract description 48
- 239000000843 powder Substances 0.000 claims abstract description 31
- 239000002360 explosive Substances 0.000 claims abstract description 24
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 22
- 238000003756 stirring Methods 0.000 claims abstract description 14
- 239000000463 material Substances 0.000 claims description 31
- 238000004873 anchoring Methods 0.000 claims description 20
- 238000005553 drilling Methods 0.000 claims description 9
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 239000011256 inorganic filler Substances 0.000 claims description 6
- 229910003475 inorganic filler Inorganic materials 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- 238000013461 design Methods 0.000 claims description 4
- 238000004880 explosion Methods 0.000 claims description 4
- 238000002347 injection Methods 0.000 claims description 4
- 239000007924 injection Substances 0.000 claims description 4
- 239000007788 liquid Substances 0.000 claims description 4
- 229920006337 unsaturated polyester resin Polymers 0.000 claims description 4
- WFUGQJXVXHBTEM-UHFFFAOYSA-N 2-hydroperoxy-2-(2-hydroperoxybutan-2-ylperoxy)butane Chemical compound CCC(C)(OO)OOC(C)(CC)OO WFUGQJXVXHBTEM-UHFFFAOYSA-N 0.000 claims description 3
- JLTDJTHDQAWBAV-UHFFFAOYSA-N N,N-dimethylaniline Chemical compound CN(C)C1=CC=CC=C1 JLTDJTHDQAWBAV-UHFFFAOYSA-N 0.000 claims description 3
- 239000000945 filler Substances 0.000 claims description 3
- 239000013521 mastic Substances 0.000 claims description 3
- 238000005259 measurement Methods 0.000 claims description 3
- GYVGXEWAOAAJEU-UHFFFAOYSA-N n,n,4-trimethylaniline Chemical compound CN(C)C1=CC=C(C)C=C1 GYVGXEWAOAAJEU-UHFFFAOYSA-N 0.000 claims description 3
- GEMHFKXPOCTAIP-UHFFFAOYSA-N n,n-dimethyl-n'-phenylcarbamimidoyl chloride Chemical compound CN(C)C(Cl)=NC1=CC=CC=C1 GEMHFKXPOCTAIP-UHFFFAOYSA-N 0.000 claims description 3
- 239000002904 solvent Substances 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims description 2
- 229910052623 talc Inorganic materials 0.000 claims 1
- 235000012222 talc Nutrition 0.000 claims 1
- 239000000454 talc Substances 0.000 claims 1
- 239000011435 rock Substances 0.000 abstract description 9
- 238000011900 installation process Methods 0.000 abstract description 5
- 238000009792 diffusion process Methods 0.000 abstract description 3
- 239000003245 coal Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 229920006305 unsaturated polyester Polymers 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000007712 rapid solidification Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K13/00—Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
- C08K13/02—Organic and inorganic ingredients
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D20/00—Setting anchoring-bolts
- E21D20/003—Machines for drilling anchor holes and setting anchor bolts
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D20/00—Setting anchoring-bolts
- E21D20/02—Setting anchoring-bolts with provisions for grouting
- E21D20/025—Grouting with organic components, e.g. resin
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Structural Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Piles And Underground Anchors (AREA)
Abstract
A kind of left-handed nothing indulges muscle overall length high pre-stress anchor pole and its construction technology, it is related to Roadway Support Technology field, it includes pallet (1), nut (2), head bolts (3), left-handed anchor rod body (4), explosive valve (7) and slow resins powder stick (8), the pallet (1) is equipped with anchor rod body and passes through hole, pallet (1) is fixedly mounted at the hole of armature boring (10), one end of the left-handed anchor rod body (4) is equipped with head bolts (3), and longitudinal hole (5) and one group of cross through hole (6) are equipped in left-handed anchor rod body (4)；Application of the invention can effectively avoid during the installation process because cause under left hand thread stirring action it is solidifying fastly be mutually mixed with slow hardening Anchor Agent, rapid hardening taking off of anchorage length the problem of, so as to apply high pre-stress to anchor pole, enhance diffusion of the prestressing force in country rock, improves the control action to high stress soft and broken surrounding rocks.
Description
Technical field
The present invention relates to Roadway Support Technology fields, and in particular to a kind of left-handed nothing indulge muscle overall length high pre-stress anchor pole and its
Construction technology.
Background technique
Safe and efficient, economic Roadway Support Technology is the necessary condition for guaranteeing mine safety, efficiently producing.Anchor pole branch
Shield technology is widely applied in external important producing coal country, wherein the most typical with the U.S., Australia, this and they
Coal seam geological condition is fairly simple, it is closely related to bury shallow and national attention this technology, forms from design of its support, mating
Construction equipment, suitable for the complete support technology body such as the serial bolting and rope support product of different condition and reliable monitoring means
System, whole system are more scientific, safe and reliable.According to incompletely statistics, the lane that the state-owned large and medium-sized coal mine in China newly tunnels every year
Road total length is up to kilometers up to ten thousand, wherein 80% or more is coal road and half-coal rock roadway.Suspension roof support has become China's coal-mine lane
Road first choice, safe and efficient main support form, for buried high stress soft and broken surrounding rocks roadway bolting support, prestressing force
The application value the high more can significant deformation controlling for rock surrounding gateways.
It is the main anchor rod body form that current colliery tunnel support uses that left-handed nothing, which indulges muscle screw-thread steel, it is based on building
It is further transformed with screw-thread steel profile.Left-handed nothing indulges the characteristics of muscle twisted steel anchor rod are as follows: since the body of rod uses left hand thread,
During the rotation forces of roof bolting equipment, resin curing agent is constantly pushed forward, may make that resin fill is closely knit.But
There is also following deficiencies: rockbolt installation process for the vertical muscle full-length prestress anchor pole of left-handed nothing used in Roadway Support Technology at present
In, quick hardening resin powder stick and slow resins powder stick are sequentially placed into drilling in advance, for drilling machine when pushing anchor pole, lever front end head is first
It is contacted with slow resins powder stick, after the slow resins powder stick in front of lever front end head is stirred brokenly, stirs push in left hand thread and make
Under, the slow hardening Anchor Agent for being broken packaging will be flowed to drilling deep, so that slow hardening Anchor Agent and fast solidifying Anchor Agent are mutual
Mixing causes actual fast solidifying Anchor Agent in the taking off of anchorage length in drilling front end portion.At the same time, it is pushed away in anchor pole left hand thread
It sending under effect, the intra-segment for being originally used for the anchoring of quick hardening resin Anchor Agent divides the resin ring for closing on the body of rod to be replaced by slow resins,
If applying compared with high pre-stress, cause high stress concentrations at screw thread cross rib, more than then causing front end slow after resin material intensity
Solidifying, rapid hardening hybrid resin Anchor Agent destroys, and further weakens anchorage effect.In short, before the prerequisite for applying high pre-stress is
The quick hardening resin of end should have enough anchorage lengths and anchoring strength；But lead to solidifying tree fastly under the stirring action of left hand thread
Rouge valid bonding length shortens, front end anchoring strength reduces, and is unfavorable for the application of high pre-stress.
It is can preventing from causing during the installation process front end fastening invalidation therefore, it is necessary to one kind and can apply and high answer in advance
The left-handed non-longitudinal rib prestressed anchor pole and construction technology of power, to be suitable for the roadway support of high stress soft broken.
Summary of the invention
The purpose of the present invention is mainly to solve above-mentioned technical problem, and a kind of left-handed nothing is provided and indulges that muscle overall length is high to answer in advance
Power anchor pole and its construction technology.
It includes pallet, nut, head bolts, left-handed anchor pole bar that a kind of left-handed nothing of the present invention, which indulges muscle overall length high pre-stress anchor pole,
Body, explosive valve and slow resins powder stick, the pallet are equipped with anchor rod body and pass through hole, and pallet is fixedly mounted on the hole of armature boring
At mouthful, one end of the left-handed anchor rod body is equipped with head bolts, and longitudinal hole is equipped in left-handed anchor rod body and one group lateral
Through-hole, one group of cross through hole are connected with longitudinal hole respectively, and the head bolts of left-handed anchor rod body pass through the anchor of pallet
Club shaft passes through hole, and by nut check, the left-handed anchor rod body is located in armature boring, left-handed anchor rod body and anchor
It is resin anchoring agent between bar drill hole, the two sides port of one group of cross through hole is respectively fitted with explosive valve.
The slow resins powder stick 8 is made of materials A and material B, and the materials A is resin-bonded mastic, by unsaturated polyester (UP)
80-100 parts of resin, 0.0025-0.015 parts of cobalt naphthenate, 300-600 parts of inorganic filler mixed according to weight ratio,
The material B is common slow hardening curing agent, by 0.04-0.12 parts of methyl ethyl ketone peroxide, repefral 0.01-0.05
Part, 0.03-0.15 parts of talcum powder ratio by weight form.
A kind of left-handed nothing indulges the construction technology of muscle overall length high pre-stress anchor pole, comprising the following steps:
1. measurement, positioning armature boring；
2. is drilled eye with jumbolter by design size；
3. high pressure water wash boring；
4. several slow resins powder sticks are pushed into left-handed anchor rod body and are drilled by, guarantee that resin explosive roll quantity can be realized
Full length fastening；
5. installs left hand thread steel pole body with jumbolter；
6. when left-handed 4 front end of anchor rod body pierces bottom hole completely, by 5, one groups of cross through hole 6 of longitudinal hole and
Explosive valve 7 injects anchoring material C, and anchoring material C forms fast-set resin powder stick after mixing with the slow resins powder stick 8 being stirred
11, realize end rapid hardening, external resin liquid is flowed into one group of cross through hole 6 and resulted in blockage, and explosive valve is unidirectional unlatching, when one
Group cross through hole (6) in injection pressure be more than explosion valve opening pressure after, explosive valve 7 open, anchoring material C flow into the body of rod with
Between drilling, the rapid hardening of anchor pole front end is realized；
7. stopping stirring after accelerates stirring Anchor Agent to reach scheduled stirring resistance；
8. waits for that the resin of left-handed anchor rod body front end is fully cured, pallet and nut are installed；
9. passes through longitudinal hole filler D into the hole of longitudinal hole and one group of cross through hole.
The anchoring material C is by DMT0.6-1.5 parts of dimethyl-p-toluidine, DMA0.2-1.5 parts of dimethylaniline, solvent
0.5-3 parts mix according to weight ratio；The material D is by 80-120 parts of unsaturated polyester resin, inorganic filler 200-300
Part, 5-10 parts of BPO powder mixed according to weight ratio.
The invention has the advantages that: application of the invention can effectively avoid during the installation process because leading under left hand thread stirring action
The problem of cause is coagulated fastly and slow hardening Anchor Agent is mutually mixed, rapid hardening taking off of anchorage length, so as to apply high pre-stress, increasing to anchor pole
The strength prestressed diffusion in country rock improves the control action to high stress soft and broken surrounding rocks, has application well
Promotional value.
Detailed description of the invention
Fig. 1 is a kind of vertical muscle overall length high pre-stress anchor pole addition anchoring material C formation fast-set resin powder stick structure of left-handed nothing
Schematic diagram.
Fig. 2 is left-handed anchor rod body and explosive valve assembly structure diagram.
Fig. 3 is a kind of construction flow chart of vertical muscle overall length high pre-stress anchor pole of left-handed nothing.
Fig. 4 is slow hardening Anchor Agent component schematic diagram.
Fig. 5 is rapid solidification anchor agent component schematic diagram.
In figure: 1, pallet；2, nut；3, head bolts；4, left-handed anchor rod body；5, longitudinal hole；6, laterally lead to for one group
Hole；7, explosive valve；8, slow resins powder stick；9, Anchor Agent；10, armature boring；11, fast-set resin powder stick.
Specific embodiment
The present invention will be further described with reference to the accompanying drawing.
As shown in Fig. 1,2,3,4,5, it includes pallet 1, nut that a kind of left-handed nothing of the present invention, which indulges muscle overall length high pre-stress anchor pole,
2, head bolts 3, left-handed anchor rod body 4, explosive valve 7 and slow resins powder stick 8, the pallet 1 are equipped with anchor rod body and pass through hole,
Pallet 1 is fixedly mounted at the hole of armature boring 10, and one end of the left-handed anchor rod body 4 is equipped with head bolts 3, left-handed anchor
Longitudinal hole 5 and one group of cross through hole 6 are equipped in club shaft 4, one group of cross through hole 6 is connected with longitudinal hole 5 respectively,
The anchor rod body that the head bolts 3 of left-handed anchor rod body 4 pass through pallet 1 passes through hole, and is locked by nut 2, the left-handed anchor
Club shaft 4 is located in armature boring 10, is resin anchoring agent between left-handed anchor rod body 4 and armature boring 10, and one group laterally logical
The two sides port in hole 6 is respectively fitted with explosive valve 7.
The slow resins powder stick 8 is made of materials A and material B, and the materials A is resin-bonded mastic, by unsaturated polyester (UP)
80-100 parts of resin, 0.0025-0.015 parts of cobalt naphthenate, 300-600 parts of inorganic filler mixed according to weight ratio,
The material B is common slow hardening curing agent, by 0.04-0.12 parts of methyl ethyl ketone peroxide, repefral 0.01-0.05
Part, 0.03-0.15 parts of talcum powder ratio by weight form.
A kind of left-handed nothing indulges the construction technology of muscle overall length high pre-stress anchor pole, comprising the following steps:
1. measurement, positioning armature boring；
2. is drilled eye with jumbolter by design size；
3. high pressure water wash boring；
4. several slow resins powder sticks 8 are pushed into left-handed anchor rod body 4 and are drilled by, guarantee that resin explosive roll quantity can be real
Existing full length fastening；
5. installs left hand thread steel pole body with jumbolter；
6. when left-handed 4 front end of anchor rod body pierces bottom hole completely, by 5, one groups of cross through hole 6 of longitudinal hole and
Explosive valve 7 injects anchoring material C, and anchoring material C forms fast-set resin powder stick after mixing with the slow resins powder stick 8 being stirred
11, realize end rapid hardening, external resin liquid is flowed into one group of cross through hole 6 and resulted in blockage, and explosive valve is unidirectional unlatching, when one
Group cross through hole (6) in injection pressure be more than explosion valve opening pressure after, explosive valve 7 open, anchoring material C flow into the body of rod with
Between drilling, the rapid hardening of anchor pole front end is realized；
7. stopping stirring after accelerates stirring Anchor Agent to reach scheduled stirring resistance；
8. waits for that the resin of left-handed 4 front end of anchor rod body is fully cured, pallet 1 and nut 2 are installed；
9. passes through the filler D into the hole of longitudinal hole 5 and one group of cross through hole 6 of longitudinal hole 5.
The anchoring material C is by DMT0.6-1.5 parts of dimethyl-p-toluidine, DMA0.2-1.5 parts of dimethylaniline, solvent
0.5-3 parts mix according to weight ratio；The material D is by 80-120 parts of unsaturated polyester resin, inorganic filler 200-300
Part, 5-10 parts of BPO powder mixed according to weight ratio.
Working method and principle: installation anchor pole when, into drilling fill slow resins powder stick, then by longitudinal hole,
To anchor pole front end injection anchoring material C, the effect of explosive valve is prevented in installation anchor pole mistake for one group of cross through hole and explosive valve
External resin powder stick liquid flows into one group of cross through hole when agitating resin powder stick in journey, when rockbolt installation to predetermined position,
The pressure for injecting anchoring material C is more than explosive valve unlatching after explosion valve opening pressure, C inflow drilling front end, and and slow resins
Front end rapid hardening can be achieved after powder stick mixing；
Carrying out construction according to process above step can effectively avoid during the installation process because leading under left hand thread stirring action
The problem of cause is coagulated fastly and slow hardening Anchor Agent is mutually mixed, rapid hardening taking off of anchorage length, so as to apply high pre-stress, increasing to anchor pole
The strength prestressed diffusion in country rock improves the control action to high stress soft and broken surrounding rocks.
The above embodiments are only used to illustrate the present invention, and not limitation of the present invention, in relation to the common of technical field
Technical staff can also make a variety of changes and modification without departing from the spirit and scope of the present invention, therefore all
Equivalent technical solution also belongs to scope of the invention, and scope of patent protection of the invention should be defined by the claims.
Claims (4)
1. the construction technology that a kind of left-handed nothing indulges muscle overall length high pre-stress anchor pole, it is characterised in that the following steps are included:
1. measurement, positioning armature boring；
2. is drilled eye with jumbolter by design size；
3. high pressure water wash boring；
4. several slow resins powder sticks (8) are pushed into left-handed anchor rod body (4) and are drilled by, guarantee that resin explosive roll quantity can be real
Existing full length fastening；
5. installs left hand thread steel pole body with jumbolter；
6. when left-handed anchor rod body (4) front end pierces bottom hole completely, passes through longitudinal hole (5), one group of cross through hole (6)
And explosive valve (7) injects anchoring material C, anchoring material C forms rapid hardening tree after mixing with the slow resins powder stick (8) being stirred
Rouge powder stick (11) realizes end rapid hardening, and external resin liquid is flowed into one group of cross through hole (6) and resulted in blockage, and explosive valve is single
To unlatching, after the injection pressure in one group of cross through hole (6) is more than explosion valve opening pressure, explosive valve (7) is opened, and anchors material
Expect that C is flowed between the body of rod and drilling, realizes the rapid hardening of anchor pole front end；
7. stopping stirring after accelerates stirring Anchor Agent to reach scheduled stirring resistance；
8. waits for that the resin of left-handed anchor rod body (4) front end is fully cured, pallet (1) and nut (2) are installed；
9. passes through longitudinal hole (5) filler D into the hole of longitudinal hole (5) and one group of cross through hole (6).
2. the construction technology that a kind of left-handed nothing according to claim 1 indulges muscle overall length high pre-stress anchor pole, it is characterised in that
The anchoring material C is by DMT0.6-1.5 parts of dimethyl-p-toluidine, DMA0.2-1.5 parts of dimethylaniline, 0.5-3 parts of solvent
It is mixed according to weight ratio；The material D is by 80-120 parts of unsaturated polyester resin, 200-300 parts of inorganic filler, BPO powder
Last 5-10 parts mixes according to weight ratio.
3. the construction technology that a kind of left-handed nothing according to claim 1 indulges muscle overall length high pre-stress anchor pole, it is characterised in that
It includes pallet (1), nut (2), head bolts (3), left-handed anchor rod body that the left-handed nothing, which indulges muscle overall length high pre-stress anchor pole,
(4), explosive valve (7) and slow resins powder stick (8), the pallet (1) are equipped with anchor rod body and pass through hole, and pallet (1) is fixedly mounted
At the hole of armature boring (10), one end of the left-handed anchor rod body (4) is equipped with head bolts (3), left-handed anchor rod body
(4) in be equipped with longitudinal hole (5) and one group of cross through hole (6), one group of cross through hole (6) respectively with longitudinal hole (5) phase
Connection, the anchor rod body that the head bolts (3) of left-handed anchor rod body (4) pass through pallet (1) passes through hole, and is locked by nut (2)
Tightly, the left-handed anchor rod body (4) is located in armature boring (10), is between left-handed anchor rod body (4) and armature boring (10)
Resin anchoring agent, the two sides port of one group of cross through hole (6) are respectively fitted with explosive valve (7).
4. the construction technology that a kind of left-handed nothing according to claim 3 indulges muscle overall length high pre-stress anchor pole, it is characterised in that
The slow resins powder stick (8) is made of materials A and material B, and the materials A is resin-bonded mastic, by unsaturated polyester resin 80-
100 parts, 0.0025-0.015 parts of cobalt naphthenate, 300-600 parts of inorganic filler mixed according to weight ratio, the material
B is common slow hardening curing agent, by 0.04-0.12 parts of methyl ethyl ketone peroxide, 0.01-0.05 parts of repefral, talcum
0.03-0.15 parts of powder ratio by weight forms.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610937567.0A CN106640160B (en) | 2016-10-24 | 2016-10-24 | A kind of left-handed nothing indulges muscle overall length high pre-stress anchor pole and its construction technology |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610937567.0A CN106640160B (en) | 2016-10-24 | 2016-10-24 | A kind of left-handed nothing indulges muscle overall length high pre-stress anchor pole and its construction technology |
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| Publication Number | Publication Date |
|---|---|
| CN106640160A CN106640160A (en) | 2017-05-10 |
| CN106640160B true CN106640160B (en) | 2019-03-29 |
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| CN201610937567.0A Expired - Fee Related CN106640160B (en) | 2016-10-24 | 2016-10-24 | A kind of left-handed nothing indulges muscle overall length high pre-stress anchor pole and its construction technology |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107829768B (en) * | 2017-10-23 | 2023-07-18 | 山东建筑大学 | A large-deformation support device and technology for blasting and automatically expanding anchorage structures |
| CN108374680B (en) * | 2018-03-12 | 2019-10-29 | 中国矿业大学 | A kind of single hole is double to anchor assembled bolt and application method |
| CN109779665A (en) * | 2019-03-29 | 2019-05-21 | 攀枝花学院 | Drill-anchor integrated bolt |
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| CN105484782A (en) * | 2016-01-08 | 2016-04-13 | 河南理工大学 | Anchor rod for achieving high-prestress total-length anchoring through double-fluid grouting cartridges and use method of anchor rod |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4295760A (en) * | 1978-04-21 | 1981-10-20 | Warner Clifford C | Rock bolt anchor |
| US4313697A (en) * | 1979-09-17 | 1982-02-02 | Rozanc Richard C | Mine roof support plate bolt |
| EP0033246A1 (en) * | 1980-01-29 | 1981-08-05 | Fosroc International Limited | Capsules containing cementitious compositions |
| CN101949294A (en) * | 2010-08-13 | 2011-01-19 | 山西潞安环保能源开发股份有限公司常村煤矿 | Prestressed full-length anchorage support method |
| CN102926700A (en) * | 2012-11-23 | 2013-02-13 | 平顶山市安泰华矿用安全设备制造有限公司 | Grouting bag type hole packer with multi-section seal |
| CN103061790A (en) * | 2013-01-23 | 2013-04-24 | 中国矿业大学 | Prestressed full-anchor squeezed anchoring device and method thereof |
| CN203214082U (en) * | 2013-05-06 | 2013-09-25 | 高原 | Novel hollow grouting anchor bolt |
| CN103485349A (en) * | 2013-09-20 | 2014-01-01 | 兰州理工大学 | Lime nail composite frame prestressed anchor tube structure and construction method for reinforcing weak slope |
| CN105484782A (en) * | 2016-01-08 | 2016-04-13 | 河南理工大学 | Anchor rod for achieving high-prestress total-length anchoring through double-fluid grouting cartridges and use method of anchor rod |
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| CN106640160A (en) | 2017-05-10 |
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