CN104278998B - For the both-end anchoring type anchor pole of roadway surrounding rock - Google Patents
For the both-end anchoring type anchor pole of roadway surrounding rock Download PDFInfo
- Publication number
- CN104278998B CN104278998B CN201410486040.1A CN201410486040A CN104278998B CN 104278998 B CN104278998 B CN 104278998B CN 201410486040 A CN201410486040 A CN 201410486040A CN 104278998 B CN104278998 B CN 104278998B
- Authority
- CN
- China
- Prior art keywords
- explosive roll
- resin explosive
- resin
- rod
- roll
- 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.)
- Expired - Fee Related
Links
- 239000011435 rock Substances 0.000 title claims abstract description 44
- 238000004873 anchoring Methods 0.000 title claims abstract description 34
- 239000011347 resin Substances 0.000 claims abstract description 91
- 229920005989 resin Polymers 0.000 claims abstract description 91
- 239000002360 explosive Substances 0.000 claims abstract description 86
- 125000006850 spacer group Chemical group 0.000 claims abstract description 38
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 14
- 238000005553 drilling Methods 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 5
- 239000002984 plastic foam Substances 0.000 claims description 5
- 239000004033 plastic Substances 0.000 claims description 4
- 239000012785 packaging film Substances 0.000 claims description 3
- 229920006280 packaging film Polymers 0.000 claims description 3
- 241001074085 Scophthalmus aquosus Species 0.000 claims 1
- 230000006578 abscission Effects 0.000 abstract description 5
- 238000013467 fragmentation Methods 0.000 abstract description 2
- 238000006062 fragmentation reaction Methods 0.000 abstract description 2
- 230000003014 reinforcing effect Effects 0.000 abstract 1
- 238000010276 construction Methods 0.000 description 4
- 239000007799 cork Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000000725 suspension Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 230000008093 supporting effect Effects 0.000 description 1
Classifications
-
- 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
-
- 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
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)
- Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)
Abstract
The invention discloses a kind of both-end anchoring type anchor pole for roadway surrounding rock, belong to the anchor pole technical field of reinforcing use in all kinds of rock mass such as mine working, it is disposed with from the inside to surface resin explosive roll one in the boring of roadway surrounding rock, spacer rod and resin explosive roll two, described resin explosive roll one, in resin explosive roll two, be enclosed with resin anchoring agent, afterbody cover at anchor rod body has leakage preventing plug, anchor bar body head is successively by resin explosive roll two, spacer rod and resin explosive roll one stretch into foot of hole, afterbody seals boring by leakage preventing plug, hell place is fixed the body of rod by pallet and nut. anchor pole of the present invention is in the time carrying out anchoring, only need pack successively resin explosive roll one, spacer rod, resin explosive roll two into boring, then utilize rig to drive anchor pole to rotate, resin explosive roll one, resin explosive roll two are carried out to fragmentation, need to, by the broken resin explosive roll of other means, can effectively not control the abscission layer destroy of back superficial part broken rock and the inbreak of fractured rock.
Description
Technical field
The present invention relates to reinforce in all kinds of rock mass such as mine working the anchor pole technical field of use, be specifically related to a kind of mining both-end anchoring type anchor pole.
Background technology
In mine working process of construction, anchor pole becomes most widely used support apparatus, suspension roof support is the mechanical state that changes country rock itself by the anchor pole of country rock inside, around tunnel, form an entirety and stable rock band, utilize anchor pole and country rock acting in conjunction, reach the object of safeguarding stability of the roadway. Anchor pole can improve the mechanical property of rock mass self, the monolithic stability of giving full play to rock mass self-supporting ability, guarantee rock slope body and country rock and safety, betterment works environment and construction quality, saving engineering material and cost, reduction of erection time; Suspension roof support, not only for preliminary bracing, is also a part for permanent support. Bolt support technology has been widely used in mine roadway support, and has obtained comparatively desirable effect.
At present, in mine laneway suspension roof support, most of end anchorage that adopts, when back superficial part country rock is comparatively broken, rock stratum is when thinner, the supporting effect of end anchorage anchor pole is unsatisfactory, and top board superficial part breaking surrounding rock can not obtain effective anchoring, easily inbreak. When top board paving wire netting, string bag phenomenon is obvious, and the processing string bag need to be cut net and emit fractured rock, and workload is large, not only affects roadway construction, and threatens workman's life security.
Summary of the invention
In view of above-mentioned the deficiencies in the prior art, the present invention proposes a kind of both-end anchoring type anchor pole for roadway surrounding rock, this rockbolt installation is simple and convenient, and can effectively suppress the inbreak of top board superficial part breaking surrounding rock and the abscission layer destroy of rock stratum, guarantee roadway support is stable, realizes safety in production.
One of task of the present invention is to provide a kind of both-end anchoring type anchor pole for roadway surrounding rock, and its technical solution is:
A kind of both-end anchoring type anchor pole for roadway surrounding rock, it comprises anchor bar body, pallet and nut, described anchor bar body is provided with head, the body of rod and afterbody, in the boring of described roadway surrounding rock, be disposed with from the inside to surface resin explosive roll one, spacer rod and resin explosive roll two, described resin explosive roll one, in resin explosive roll two, be enclosed with resin anchoring agent, described spacer rod is for carrying out shutoff to the Anchor Agent of resin explosive roll one, described resin explosive roll one, the total length of spacer rod and resin explosive roll two equals the degree of depth of boring, the afterbody cover of the described body of rod has leakage preventing plug, described leakage preventing plug is the round table-like structure of open circles in the middle of selecting, its upper surface diameter is less than bore diameter, lower surface diameter is greater than bore diameter, described hollow diameter of a circle is identical with described body of rod diameter, described anchor bar body head stretches into foot of hole by resin explosive roll two, spacer rod and resin explosive roll one successively, and afterbody seals boring by described leakage preventing plug, and described hell place is fixed the body of rod by described pallet and nut.
As a preferred version of the present invention, above-mentioned resin explosive roll one, resin explosive roll two all select plastic packaging film parcel to form.
As another preferred version of the present invention, above-mentioned spacer rod is made up of plastic foam.
Two of task of the present invention is to provide a kind of anchoring process of above-mentioned both-end anchoring type anchor pole.
The anchoring process that is used for the both-end anchoring type anchor pole of roadway surrounding rock, it specifically comprises the following steps:
Step 1, on the roadway surrounding rock that needs anchoring, hole, make drilling depth equal anchor bar body length;
Step 2, select the resin explosive roll one, spacer rod and the resin explosive roll two that match according to drilling depth, resin explosive roll one is put into foot of hole, put into successively again spacer rod, resin explosive roll two, then have the body of rod of leakage preventing plug to pierce foot of hole in afterbody cover, leakage preventing plug is filled in to hell;
Step 3, connect rig and rotate anchor bar body, resin explosive roll one, resin explosive roll two are stirred evenly, after Anchor Agent solidifies, take off rig, tray, fastening nut, make pallet jam-packed leakage preventing plug and fix pallet simultaneously.
Length, diameter and the quantity of above-mentioned resin explosive roll one, spacer rod and resin explosive roll two are chosen according to boring, three's total length sum keeps identical with drilling depth, spacer rod is cylinder, its slightly larger in diameter is in bolt diameter, Design of length is 25～50cm, also can choose according to actual conditions, or arrange multiple.
Above-mentioned leakage preventing plug is the cork of being made up of timber, and the height of this cork is 10cm, and in the middle of it, the diameter of open circles equals the diameter of anchor pole.
The present invention proposes a kind of both-end anchoring type anchor pole for roadway surrounding rock, it is disposed with from the inside to surface resin explosive roll one, spacer rod and resin explosive roll two in the boring of roadway surrounding rock, in resin explosive roll one, resin explosive roll two, be enclosed with resin anchoring agent, can carry out anchoring to anchor pole by resin explosive roll one, resin explosive roll two can be to the anchoring of top board superficial part broken rock, not only effective support back, and suppressed superficial part broken rock abscission layer destroy and inbreak; Application cork member, it can effectively control Anchor Agent outflow, thereby makes Anchor Agent give full play to anchorage effect;
Both-end anchoring type anchor pole of the present invention is in the time carrying out anchoring, only need pack successively resin explosive roll one, spacer rod, resin explosive roll two into boring, then utilize rig to drive anchor pole to rotate, resin explosive roll one, resin explosive roll two are carried out to fragmentation, need to be by the broken resin explosive roll of other means, its making is simple, easy for installation, can effectively control the abscission layer destroy of back superficial part broken rock and the inbreak of fractured rock, maintain the stable of top board, ensure safety in production, provide certain reference value to colliery tunnel support.
Brief description of the drawings
Below in conjunction with accompanying drawing, the present invention is done to further clear, complete explanation:
Fig. 1 is the structural representation of both-end anchoring type anchor pole of the present invention;
Fig. 2 is the vertical cross section schematic diagram of spacer rod of the present invention;
Fig. 3 is the structural representation of leakage preventing plug of the present invention;
In figure, 1, resin explosive roll one, 2, spacer rod, 3, leakage preventing plug, 4, pallet, 5, nut, 6, the body of rod, 7, resin explosive roll two.
Detailed description of the invention
The present invention proposes a kind of both-end anchoring type anchor pole for roadway surrounding rock, in order to make advantage of the present invention, technical scheme clearer, clear and definite, below in conjunction with specific embodiment, the present invention is done to further clear, complete explanation.
A kind of both-end anchoring type anchor pole for roadway surrounding rock, as shown in Figure 1, it comprises resin explosive roll 1, spacer rod 2, leakage preventing plug 3, pallet 4, nut 5, the body of rod 6 and resin explosive roll 27, wherein, the body of rod 6 is selected the high duty metal body of rod same as the prior art, leakage preventing plug 3 is the round table-like of open circles in the middle of being, its upper surface diameter is less than bore diameter, lower surface diameter is greater than bore diameter, hollow diameter of a circle is identical with the body of rod 6 diameters, and leakage preventing plug 3 is cork, the afterbody of the body of rod 6 can insert in the open circles of leakage preventing plug 3, leakage preventing plug 3 and the body of rod 6 form integrative-structure,
In the boring of above-mentioned roadway surrounding rock, be followed successively by from the inside to surface resin explosive roll 1, spacer rod 2 and resin explosive roll 27, wherein, select resin explosive roll 1 according to the degree of depth of boring, the total length of spacer rod 2 and resin explosive roll 27, therefore, resin explosive roll 1, spacer rod 2 and resin explosive roll 27 length selecting scale is separately freer, the length of the preferred spacer rod 2 of the present invention is 25～50cm, resin explosive roll 1, after arranging successively in spacer rod 2 and resin explosive roll 27 positions, by the body of rod with leakage preventing plug 36, be the foot of hole that anchor head end starts to be stretched into roadway surrounding rock from head one end,
Above-mentioned resin explosive roll 1, resin explosive roll 27 are plastic packaging film parcel and form, and Anchor Agent is arranged in plastic wraps film; Spacer rod 2 is made up of plastic foam, and its shape is identical with the body of rod is cylinder, and the diameter of spacer rod 2 is greater than the diameter of the body of rod, and like this, spacer rod 2 can carry out shutoff to the Anchor Agent in resin explosive roll one, prevents from flowing out.
Because spacer rod is the special construction of being made up of plastic foam, therefore, the body of rod 6 to boring in insert in, the spacer rod that the body of rod 6 can stir brokenly resin explosive roll two successively, then make through plastic foam, finally stretching into foot of hole stirs brokenly resin explosive roll one again, like this, the Anchor Agent in resin explosive roll one, resin explosive roll two flows out and then plays the effect of anchoring.
The anchoring process of above-mentioned both-end anchoring type anchor pole, it specifically comprises the following steps:
Step 1, on the roadway surrounding rock that needs anchoring, hole, make drilling depth equal anchor bar body length;
Step 2, select the resin explosive roll one, spacer rod and the resin explosive roll two that match according to drilling depth, resin explosive roll one is put into foot of hole, put into successively again spacer rod, resin explosive roll two, then have the body of rod of leakage preventing plug to pierce foot of hole in afterbody cover, leakage preventing plug is filled in to hell;
Step 3, connect rig and rotate anchor bar body, resin explosive roll one, resin explosive roll two are stirred evenly, after Anchor Agent solidifies, take off rig, tray, fastening nut, make pallet jam-packed leakage preventing plug and fix pallet simultaneously.
The present invention effectively suppresses the inbreak of top board superficial part breaking surrounding rock and the abscission layer destroy of rock stratum by being positioned at the inner resin explosive roll one of boring, spacer rod and resin explosive roll two, ensures that roadway support is stable.
Claims (2)
1. for a both-end anchoring type anchor pole for roadway surrounding rock, it comprises anchor bar body, pallet and nut, and described anchor bar body is provided withHead, the body of rod and afterbody, is characterized in that: in the boring of described roadway surrounding rock, be disposed with from the inside to surface resin explosive roll one,Spacer rod and resin explosive roll two, described resin explosive roll one, the interior resin anchoring agent that is all enclosed with of resin explosive roll two, described spacer rod is usedCarry out shutoff in the Anchor Agent in resin explosive roll one, the total length of described resin explosive roll one, spacer rod and resin explosive roll two equalsThe degree of depth of boring, the afterbody cover of described anchor bar body has leakage preventing plug, and described leakage preventing plug is the round table-like structure of open circles in the middle of selecting,Its upper surface diameter is less than bore diameter, and lower surface diameter is greater than bore diameter, described hollow diameter of a circle and described body of rod diameterIdentical; Described anchor bar body head stretches into foot of hole by resin explosive roll two, spacer rod and resin explosive roll one successively, and afterbody passes throughDescribed leakage preventing plug seals boring, the body of rod is fixed by described pallet and nut at hell place; Described resin medicineVolume one, resin explosive roll two all select plastic packaging film parcel to form; Described spacer rod is made up of plastic foam.
2. the anchoring process of both-end anchoring type anchor pole according to claim 1, is characterized in that, comprises the following steps:
Step 1, on the roadway surrounding rock that needs anchoring, hole, drilling depth and body of rod length are matched;
Step 2, select the resin explosive roll one, spacer rod and the resin explosive roll two that match according to drilling depth, by resin explosive rollOne puts into foot of hole, then put into spacer rod successively, resin explosive roll two, then have the anchor bar body of leakage preventing plug to pierce brill in afterbody coverHole, anchor bar body head stretches into foot of hole by resin explosive roll two, spacer rod and resin explosive roll one successively, and leakage preventing plug is filled in to brillAperture;
Step 3, connect rig and rotate anchor bar body, resin explosive roll one, resin explosive roll two are stirred evenly, after Anchor Agent solidifies,Take off rig, tray, fastening nut, make pallet jam-packed leakage preventing plug and fix pallet simultaneously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410486040.1A CN104278998B (en) | 2014-09-22 | 2014-09-22 | For the both-end anchoring type anchor pole of roadway surrounding rock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410486040.1A CN104278998B (en) | 2014-09-22 | 2014-09-22 | For the both-end anchoring type anchor pole of roadway surrounding rock |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104278998A CN104278998A (en) | 2015-01-14 |
| CN104278998B true CN104278998B (en) | 2016-05-04 |
Family
ID=52254288
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410486040.1A Expired - Fee Related CN104278998B (en) | 2014-09-22 | 2014-09-22 | For the both-end anchoring type anchor pole of roadway surrounding rock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104278998B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111412001A (en) * | 2020-03-09 | 2020-07-14 | 中国矿业大学 | Resin anchoring cartridge with function of assisting in breaking packaging film and mounting method |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105484782B (en) * | 2016-01-08 | 2018-01-30 | 河南理工大学 | A kind of anchor pole and its application method for realizing high pre-stress full length fastening |
| CN107191211B (en) * | 2017-07-10 | 2023-03-31 | 河南理工大学 | Fork-shaped anchor rod for anchoring broken roof coal body and mounting method thereof |
| CN111677536A (en) * | 2020-06-30 | 2020-09-18 | 陕西陕煤韩城矿业有限公司 | Method for conveying explosive cartridge anchoring agent in soft coal seam |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4764055A (en) * | 1986-10-02 | 1988-08-16 | Birmingham Bolt Company, Inc. | Resin reinforced expansion anchor system |
| CN2208617Y (en) * | 1994-05-25 | 1995-09-27 | 中国矿业大学 | Double-end anchored type anchor rod |
| CN103758551B (en) * | 2014-01-22 | 2017-01-04 | 山东科技大学 | Multistage anchoring type resin anchor and anchoring process thereof |
| CN204200251U (en) * | 2014-09-22 | 2015-03-11 | 山西潞安集团余吾煤业有限责任公司 | For the both-end anchoring type anchor pole of roadway surrounding rock |
-
2014
- 2014-09-22 CN CN201410486040.1A patent/CN104278998B/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111412001A (en) * | 2020-03-09 | 2020-07-14 | 中国矿业大学 | Resin anchoring cartridge with function of assisting in breaking packaging film and mounting method |
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| Publication number | Publication date |
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| CN104278998A (en) | 2015-01-14 |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| C14 | Grant of patent or utility model | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160504 Termination date: 20160922 |
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| CF01 | Termination of patent right due to non-payment of annual fee |