CN105626111B - A kind of coal column two-way reinforcing concertina type two-ended cables - Google Patents
A kind of coal column two-way reinforcing concertina type two-ended cables Download PDFInfo
- Publication number
- CN105626111B CN105626111B CN201510997211.1A CN201510997211A CN105626111B CN 105626111 B CN105626111 B CN 105626111B CN 201510997211 A CN201510997211 A CN 201510997211A CN 105626111 B CN105626111 B CN 105626111B
- Authority
- CN
- China
- Prior art keywords
- anchor cable
- sleeve
- section
- rearmounted
- coal column
- 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.)
- Active
Links
- 239000003245 coal Substances 0.000 title claims abstract description 49
- 230000003014 reinforcing effect Effects 0.000 title claims abstract description 23
- 239000002184 metal Substances 0.000 claims abstract description 21
- 239000007787 solid Substances 0.000 claims description 5
- 230000002146 bilateral effect Effects 0.000 abstract description 6
- 238000005516 engineering process Methods 0.000 description 7
- 239000003795 chemical substances by application Substances 0.000 description 6
- 238000010276 construction Methods 0.000 description 6
- 239000011435 rock Substances 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 4
- 238000004873 anchoring Methods 0.000 description 4
- 238000005553 drilling Methods 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000007921 spray Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 230000003321 amplification Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 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
- E21D21/008—Anchoring or tensioning means
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)
- Laying Of Electric Cables Or Lines Outside (AREA)
Abstract
The invention discloses a kind of coal column two-way reinforcing concertina type two-ended cables, including preposition section of anchor cable, rearmounted section of anchor cable and extension sleeve；Extension sleeve includes fixes sleeve and branch sleeve, and branch sleeve is thread metal, and fixes sleeve is external screw thread metal tube, and two metal tubes are connected through a screw thread, and branch sleeve is connected for preposition section with anchor cable, and fixes sleeve is connected for rearmounted section with anchor cable；Rearmounted section of anchor cable includes rearmounted anchor cable body, and the inner of rearmounted anchor cable body is provided with wedge-shaped rubber snap ring, and the inner of fixes sleeve is provided with wedge-shaped opening, after the inner of rearmounted anchor cable body penetrates fixes sleeve, is stuck in by wedge-shaped rubber snap ring on wedge-shaped opening.First two-ended cables are pierced in goaf coal column side, coal column opposite side is tunneled after a period of time, two-ended cables back segment is elongated or spreading and fixation, accordingly even when coal column bilateral is not constructed simultaneously, the purpose of two-way reinforcing coal column can also be reached, greatly improve enabling capabilities of the coal column to top plate.
Description
Technical field
The present invention relates to a kind of coal column reinforcement technique, more particularly to a kind of coal column two-way reinforcing concertina type two-ended cables.
Background technology
Gob side entry driving technology refers to stay the coal column for setting 4~6m to be used as " divider wall prop " close to goaf side, along coal column
Opposite side digging laneway, substitute the conventional wide coal columns of 15~30m, can so improve coal resources recovery ratio, reduce on coal column
Region of stress concentration.Its advantage is：1. " divider wall prop " is used as using coal column, compared with gob side entry retaining, without artificial again
Isolated wall is built, avoids constructional difficulties, support material transport is avoided, saves support material expense.2. present coal road
Fully-mechanized digging machine pick efficiency of construction is high, and under the conditions of general geology, per 400~600m of drill footage per month, gob side entry driving is easily achieved.
Gob side entry driving relies on pillar back, so needing to strengthen pillar ability, using to wearing
Anchor cable reinforces coal column from both sides, can greatly improve pillar ability.Because the coal column both sides mining engineering engineering time differs
At least more than 1 year, goaf side was closed already when new pick side is constructed, and existing anchor cable can not be completed to reinforce coal column to wearing,
There is no available two-ended cables.
Used two-ended cables during the two-way reinforcing of some rock mass of the prior art, the technology must be rock mass both sides simultaneously
Construction, can not realize two-way reinforcing if can not construct simultaneously.
The content of the invention
It is an object of the invention to provide a kind of two-way reinforcing concertina type two-ended cables of coal column for conveniently realizing two-way reinforcing.
The purpose of the present invention is achieved through the following technical solutions：
The coal column two-way reinforcing concertina type two-ended cables of the present invention, including preposition section of anchor cable and rearmounted section of anchor cable, it is described
It is connected between rearmounted section of preposition section of anchor cable and anchor cable by extension sleeve；
Preposition section of the anchor cable includes preposition anchor cable body, and the outer end of the preposition anchor cable body is provided with lockset and pallet, inner
It is connected with the extension sleeve；
The extension sleeve includes fixes sleeve and branch sleeve, and the branch sleeve is thread metal, described solid
It is external screw thread metal tube to determine sleeve, and two metal tubes are connected through a screw thread, and the branch sleeve is connected for preposition section with the anchor cable, institute
Fixes sleeve is stated to be connected for rearmounted section with the anchor cable；
Rearmounted section of the anchor cable includes rearmounted anchor cable body, and the outer end of the rearmounted anchor cable body is provided with lockset and pallet, inner
Provided with wedge-shaped rubber snap ring, the inner of the fixes sleeve is provided with wedge-shaped opening, and the inner of the rearmounted anchor cable body penetrates described solid
After determining sleeve, it is stuck in by the wedge-shaped rubber snap ring on the wedge-shaped opening.
As seen from the above technical solution provided by the invention, the two-way reinforcing of coal column provided in an embodiment of the present invention is with stretching
Miniature two-ended cables, two-ended cables first can be pierced in goaf coal column side, coal column opposite side is tunneled after a period of time, will be right
The elongation of anchor cable back segment or spreading and fixation are worn, accordingly even when coal column bilateral is not constructed simultaneously, two-way reinforcing coal can also be reached
The purpose of post, greatly improve enabling capabilities of the coal column to top plate.What goaf was closed when solving two-ended cables consolidating crack is tired
Disturb, also solve rock mass bilateral while construction causes the unstable puzzlement of prearranged pillar.
Brief description of the drawings
Fig. 1 is the overall structure diagram of the two-way reinforcing concertina type two-ended cables of coal column provided in an embodiment of the present invention.
Fig. 2 is that the preposition segment structure of the two-way reinforcing concertina type two-ended cables of coal column provided in an embodiment of the present invention is illustrated
Figure.
Fig. 3 a are extension sleeve structure chart in the embodiment of the present invention；
Fig. 3 b are Fig. 3 a A portions amplification assumption diagram.
Fig. 4 is that the rearmounted segment structure of the two-way reinforcing concertina type two-ended cables of coal column provided in an embodiment of the present invention is illustrated
Figure.
Fig. 5 is the scheme of installation of the two-way reinforcing concertina type two-ended cables of coal column provided in an embodiment of the present invention.
Fig. 6 shows for integral installation after the elongation of the two-way reinforcing concertina type two-ended cables of coal column provided in an embodiment of the present invention
It is intended to.
In figure：
1- locksets, 2- pallets, the rearmounted anchor cable bodies of 3-, 4- telescopic end fixes sleeves, 5- extension sleeves, 6- wedge-shaped rubber cards
Ring, the preposition anchor cable bodies of 7-.
Embodiment
The embodiment of the present invention will be described in further detail below.
The coal column two-way reinforcing concertina type two-ended cables of the present invention, its preferable embodiment are：
Including preposition section of anchor cable and rearmounted section of anchor cable, preposition section of the anchor cable passes through extension sleeve between rearmounted section of anchor cable
Connection；
Preposition section of the anchor cable includes preposition anchor cable body, and the outer end of the preposition anchor cable body is provided with lockset and pallet, inner
It is connected with the extension sleeve；
The extension sleeve includes fixes sleeve and branch sleeve, and the branch sleeve is thread metal, described solid
It is external screw thread metal tube to determine sleeve, and two metal tubes are connected through a screw thread, and the branch sleeve is connected for preposition section with the anchor cable, institute
Fixes sleeve is stated to be connected for rearmounted section with the anchor cable；
Rearmounted section of the anchor cable includes rearmounted anchor cable body, and the outer end of the rearmounted anchor cable body is provided with lockset and pallet, inner
Provided with wedge-shaped rubber snap ring, the inner of the fixes sleeve is provided with wedge-shaped opening, and the inner of the rearmounted anchor cable body penetrates described solid
After determining sleeve, it is stuck in by the wedge-shaped rubber snap ring on the wedge-shaped opening.
Finger lock, preposition section of the anchor cable are compressed by same suppressor between the branch sleeve and preposition section of the anchor cable
17.8~22mm of diameter.
The branch sleeve length is 1000mm~1500mm, and the fixes sleeve length is 300mm.
The coal column two-way reinforcing concertina type two-ended cables of the present invention, two-ended cables first are pierced in goaf coal column side,
Coal column opposite side is tunneled after a period of time, two-ended cables back segment is elongated or spreading and fixation, accordingly even when coal column bilateral is not
Construct simultaneously, the purpose of two-way reinforcing coal column can also be reached, greatly improve enabling capabilities of the coal column to top plate.Solve to wearing
The puzzlement that goaf is closed during anchor cable consolidating crack, also solves rock mass bilateral while construction causes prearranged pillar is unstable to be stranded
Disturb.
Specific embodiment：
As shown in figure 1, including rearmounted section of preposition section of anchor cable, extension sleeve and anchor cable three parts, section is by stretching before and after anchor cable
Sleeve connection, the rearmounted segment length of anchor cable is adjusted by extension sleeve to adapt to different coal pillar widths.
Overall structure of the present invention is as shown in figure 1, critical component includes following three parts：
(1) preposition section of concertina type two-ended cables
Such as Fig. 2, including lockset 1, pallet 2, branch sleeve 5, preposition anchor cable body 7.
Anchor cable body often uses 17.8~22mm of diameter, can be selected according to being actually needed；Anchor cable body front end passes through suppressor pressure
Next pinning anchor cable, so as to be fixed in branch sleeve；Pallet and lockset are conventional components, it is not necessary to are described in detail.
Anchored in preposition section of 2500~3500mm opening positions of anchor cable, Anchor Agent colligation first on anchor cable body, with
One piece of anchor cable is sent into drilling, and stirring brokenly Anchor Agent using rig reaches anchoring effect in the middle part of anchor cable.
(2) extension sleeve
Such as Fig. 3 a, Fig. 3 b, including fixes sleeve 4 and branch sleeve 5.Branch sleeve is interior cutting thread high tensile metal pipe, Gu
It is outer cutting thread high tensile metal pipe to determine sleeve, and two metal pipe screw threads, which are coincide, to interlock.Branch sleeve plays demarcation anchor cable front and rear section
Position and the effect of connection anchor cable front and rear section, general length is 1000mm~1500mm, depending on actual conditions；Telescopic end is consolidated
Determine sleeve and play a part of rearmounted section of fixed two-ended cables, prevent anchor cable from running out of, general length is 300mm, depending on actual conditions
It is fixed.
(3) rearmounted section of concertina type two-ended cables
Such as Fig. 4, including lockset 1, pallet 2, rearmounted anchor cable body 3, wedge-shaped rubber snap ring 6 and extension sleeve.
Branch sleeve is interior cutting thread high tensile metal pipe, and fixes sleeve is outer cutting thread high tensile metal pipe, two metal tube spiral shells
Line, which coincide, to interlock；Anchor cable body stretches into branch sleeve, and fixed cover is enclosed on into adapter sleeve rear end, anchor cable body rear end stationary wedge rubber card
Ring, prevent anchor cable body from running out of.
The construction method of specific embodiment：
(1) preposition section of technology of concertina type two-ended cables is implemented
Preposition section of processing of two-ended cables：Appropriate length anchor cable body is intercepted first, by anchor cable body winding steel wire, utilizes special strand
Silk machine creeps into anchor cable in flexible adapter sleeve front end steel pipe in rotation, is fixed before then pinning preposition anchor cable using suppressor
End, last spray anti-rust oil, complete to make.
(2) extension sleeve technology is implemented
Extension sleeve is made up of branch sleeve and telescopic end fixes sleeve.Branch sleeve is interior cutting thread high tensile metal pipe,
Fixes sleeve is outer cutting thread high tensile metal pipe, and two metal pipe screw threads, which are coincide, to interlock.The processing of fixes sleeve one end is in wedge shape, with
Rearmounted section of wedge-shaped rubber snap ring of two-ended cables matches.Last spray anti-rust oil, complete to make.
(3) rearmounted section of technology of concertina type two-ended cables is implemented
Rearmounted section of processing of two-ended cables：By anchor cable body winding steel wire, anchor cable is crept into rotation using special thread reaming machine
In the steel pipe of adapter sleeve rear end, the processing wedged rubber snap ring in rearmounted section of one end of two-ended cables, the fixes sleeve kissing with extension sleeve
Close, last spray anti-rust oil, complete to make.
Concertina type two-ended cables general description of construction：
1. drilling first, at least above two-ended cables maximum outside diameter 2mm, drilling depth exceedes design coal pillar width in aperture；
2. then installing preset anchor cable, in preposition section of 2500~3500mm opening position colligation resin anchoring agent of anchor cable, Anchor Agent is with stretching
Adapter sleeve pulls open certain distance, and preset anchor cable is put into drilling；3. starting rig stirs brokenly Anchor Agent, make preposition section of anchor cable suitable
Profit anchoring, last Prestressing top tray lockset again, as shown in Figure 5；4. when it is next adopt face Xin Jue tunnels when, coal column is drilled in
The elongation of rearmounted section of preset anchor cable, last Prestressing top tray lockset again.As shown in Figure 6.
The beneficial effect that technical solution of the present invention is brought：
The present invention proposes a kind of coal column two-way reinforcing concertina type two-ended cables, can reinforce gob side entry driving coal column, significantly
Stability of coal pillar is improved, ensures that new pick back is stable.
The puzzlement that goaf is closed when the present invention solves two-ended cables consolidating crack, also solves rock mass bilateral while applies
Work causes the unstable puzzlement of prearranged pillar.
Telescopic end fixes sleeve can be soldered in branch sleeve in specific embodiment, equally within protection domain.
The present invention key problem in technology point be：
(1) be used for preposition section of concertina type two-ended cables and the rearmounted section of extension sleeve being connected, including branch sleeve with stretch
Contracting end fixes sleeve.
(2) the preposition section of anchoring process using stage casing colligation Anchor Agent of anchor cable of the present invention.
(3) two-ended cables early stage is constructed in coal body side, and anchor cable is elongated in coal column opposite side when the later stage newly digs tunnel, with up to
To two-way implementer's method to wearing reinforcing.
The foregoing is only a preferred embodiment of the present invention, but protection scope of the present invention be not limited thereto,
Any one skilled in the art is in the technical scope of present disclosure, the change or replacement that can readily occur in,
It should all be included within the scope of the present invention.Therefore, protection scope of the present invention should be with the protection model of claims
Enclose and be defined.
Claims (1)
- A kind of 1. coal column two-way reinforcing concertina type two-ended cables, it is characterised in that including preposition section of anchor cable and rearmounted section of anchor cable, It is connected between rearmounted section of preposition section of the anchor cable and anchor cable by extension sleeve；Preposition section of the anchor cable includes preposition anchor cable body, and the outer end of the preposition anchor cable body is provided with lockset and pallet, inner and institute State extension sleeve connection；The extension sleeve includes fixes sleeve and branch sleeve, and the branch sleeve is thread metal, the fixed cover Cylinder is external screw thread metal tube, and two metal tubes are connected through a screw thread, and the branch sleeve is connected for preposition section with the anchor cable, described solid Determine sleeve to be connected for rearmounted section with the anchor cable；Rearmounted section of the anchor cable includes rearmounted anchor cable body, and the outer end of the rearmounted anchor cable body is provided with lockset and pallet, and the inner is provided with Wedge-shaped rubber snap ring, the inner of the fixes sleeve are provided with wedge-shaped opening, and the inner of the rearmounted anchor cable body penetrates the fixed cover After cylinder, it is stuck in by the wedge-shaped rubber snap ring on the wedge-shaped opening；Between the branch sleeve and preposition section of the anchor cable by same suppressor compress finger lock, preposition section of the anchor cable it is straight 17.8~22mm of footpath；The branch sleeve length is 1000mm~1500mm, and the fixes sleeve length is 300mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510997211.1A CN105626111B (en) | 2015-12-25 | 2015-12-25 | A kind of coal column two-way reinforcing concertina type two-ended cables |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510997211.1A CN105626111B (en) | 2015-12-25 | 2015-12-25 | A kind of coal column two-way reinforcing concertina type two-ended cables |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105626111A CN105626111A (en) | 2016-06-01 |
| CN105626111B true CN105626111B (en) | 2018-02-23 |
Family
ID=56041401
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510997211.1A Active CN105626111B (en) | 2015-12-25 | 2015-12-25 | A kind of coal column two-way reinforcing concertina type two-ended cables |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105626111B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109736865B (en) * | 2019-03-19 | 2024-02-06 | 河南理工大学 | Gob-side entry driving coal pillar anchor bar structure and assembly and field installation method thereof |
| CN110847930A (en) * | 2019-12-09 | 2020-02-28 | 中交第一公路勘察设计研究院有限公司 | Multistage yielding-resisting supporting structure of extremely-high ground stress soft rock large-deformation tunnel and construction method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103016035A (en) * | 2012-12-27 | 2013-04-03 | 辽宁工程技术大学 | Abdicating buffer energy-absorbing shock-proof anchor rod cable for coal mine |
| CN103899342A (en) * | 2014-04-15 | 2014-07-02 | 中国矿业大学(北京) | Gob-side entrydriving coal pillar anchor cable through reinforcing method |
| CN204200254U (en) * | 2014-10-31 | 2015-03-11 | 济南深博矿山设备有限公司 | A kind of coal column is reinforced and is used two-way two-ended cables |
| CN204419213U (en) * | 2014-12-02 | 2015-06-24 | 中国矿业大学(北京) | A set of high pre-stress girders anchorage cable linkage being convenient to stretch-draw and locking |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090191006A1 (en) * | 2008-01-29 | 2009-07-30 | Seegmiller Ben L | Resin Mixing and Cable Tensioning Device and Assembly for Cable Bolts |
-
2015
- 2015-12-25 CN CN201510997211.1A patent/CN105626111B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103016035A (en) * | 2012-12-27 | 2013-04-03 | 辽宁工程技术大学 | Abdicating buffer energy-absorbing shock-proof anchor rod cable for coal mine |
| CN103899342A (en) * | 2014-04-15 | 2014-07-02 | 中国矿业大学(北京) | Gob-side entrydriving coal pillar anchor cable through reinforcing method |
| CN204200254U (en) * | 2014-10-31 | 2015-03-11 | 济南深博矿山设备有限公司 | A kind of coal column is reinforced and is used two-way two-ended cables |
| CN204419213U (en) * | 2014-12-02 | 2015-06-24 | 中国矿业大学(北京) | A set of high pre-stress girders anchorage cable linkage being convenient to stretch-draw and locking |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105626111A (en) | 2016-06-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104389618B (en) | A kind of multiple-arch tunnel barrel is without room steel tube shed construction method for supporting | |
| CN103032086B (en) | Method for filling resin explosive cartridge in drilled hole of tunnel roof anchor rod | |
| CN105178979A (en) | Supporting structure of tunnel in bias salt cavity environment and construction method of supporting structure | |
| AU2018412370A1 (en) | A long-distance drilling and hydrofracturing integrated device and method in underground mine | |
| CN103899342A (en) | Gob-side entrydriving coal pillar anchor cable through reinforcing method | |
| CN105626111B (en) | A kind of coal column two-way reinforcing concertina type two-ended cables | |
| CN204200254U (en) | A kind of coal column is reinforced and is used two-way two-ended cables | |
| CN108868769A (en) | A kind of construction method for reinforcing coal column based on swollen locking-type anchor cable | |
| CN112267899A (en) | Tunnel exit construction method | |
| CN209457957U (en) | A kind of New Anchor Cable anchorage | |
| CN207583398U (en) | A kind of weak surrounding rock combination supporting device | |
| CN106761742B (en) | A kind of deep island working face gob side entry driving surrounding rock stability control method | |
| CN210622829U (en) | Gob entry driving coal pillar anchor bar structure | |
| CN104612714A (en) | Mining method tunnel construction method and structure through which tunnel can penetrate through surrounding rock poor in geological condition | |
| CN104264671A (en) | Recyclable anchor rod | |
| CN109736865A (en) | A kind of gob side entry driving coal column dowel structure and its assembling and field installation process | |
| CN204283211U (en) | Plenty water weak surrounding rock tunnel advanced support pipe canopy pore-forming system smashed to pieces | |
| US10883320B2 (en) | Ground wellhole dedicated protective pipe for gas extraction of mining-induced area | |
| CN207554077U (en) | The passive harmonious supporting construction of extreme rockburst tunnel master | |
| CN204060718U (en) | Pre grouting from the surface reinforced roadway is through the Novel cloth pore structure of fault belt place country rock | |
| CN107620831A (en) | A kind of construction method for passing through existing roadbed pipeline | |
| CN203412596U (en) | Grouting device and grouting pipe for deep rock tunnel | |
| CN207776795U (en) | A kind of chambering device structure | |
| CN102966306A (en) | System and operation method for drilling hole on hard rock in one attempt | |
| CN208280901U (en) | A kind of stone matter tunneltron canopy flatness control device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |