CN104806275A - Coal roadway rapid support method in unstable surrounding rock condition - Google Patents
Coal roadway rapid support method in unstable surrounding rock condition Download PDFInfo
- Publication number
- CN104806275A CN104806275A CN201510074298.5A CN201510074298A CN104806275A CN 104806275 A CN104806275 A CN 104806275A CN 201510074298 A CN201510074298 A CN 201510074298A CN 104806275 A CN104806275 A CN 104806275A
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- CN
- China
- Prior art keywords
- anchor
- support
- roofboltier
- surrounding rock
- driving machine
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- 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.)
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH 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 DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C25/00—Cutting machines, i.e. for making slits approximately parallel or perpendicular to the seam
- E21C25/66—Machines for making slits with additional arrangements for drilling
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Devices Affording Protection Of Roads Or Walls For Sound Insulation (AREA)
Abstract
The invention discloses a coal roadway rapid support method in an unstable surrounding rock condition. Support processes are resolved, and staggered supplement drilling is performed, that is, while a driving anchor machine complete one tunneling cycle, metal nets are hung on the roof and two slopes of the support section, and an anchor rod drilling machine on the driving anchor machine completes pre-support of roof anchor rods and slope anchor rods in one support section, accordingly, the empty-support distance is reduced, and the operation safety is guaranteed. Subsequent cycle is cut, an anchor rod drill carriage and an anchor cable trolley are used for performing reinforcement support on the staggered supplement anchor rods of the roof and the two slopes of the support section, the three times of support are synchronous in the aspect of time and are performed successively spatially, and eventually, the whole section support is completed. On the basis of prior support technologies, by the reasonable combination and matching and adjusting of construction sequences, the section support is resolved into a plurality of support steps, and all the steps are connected continuously, accordingly, the total support efficiency and the tunneling efficiency are matched, and the coal roadway rapid tunneling efficiency in the unstable surrounding rock condition is improved on the basis of the guarantee of construction safety.
Description
Technical field
This invention relates to a kind of coal road road quick supporting method, particularly relates to the coal road quick supporting method under a kind of unstable surrounding rock condition.
Background technology
Coal road trace integration mechanization speedy drivage is the process integrating cut, loading, transhipment, supporting, auxiliary fortune etc., and any one link all restricts the drivage efficiency of whole system.Matching problem, rear corresponding problem, the assistant conveyance problem of what existing pick anchor equipment will realize that first speedy drivage will solve is driving and supporting.
In current pick anchoring integral equipment, development machine is on average within every 6 minutes, tunnel one meter at the drivage efficiency of coal road, half coal road, and current jumbolter to make a call to an anchor pole be 6-10 minute, each section needs to beat 8-12 root anchor pole, add top net, hang side net, the aided processes such as stitching are netted by top side, the supporting of complete anchor pole in a row needs 20 minutes, and actual drivage efficiency depends on the support efficiency of anchor pole completely.
Speedy drivage will be realized in addition, support material in unit interval will significantly improve, with width 5 meters, the tunnel of height 4 meters is example, each section top anchor pole 6, side anchor pole 4, one meter one, drill footage per month degree 1200 meters, needs anchor pole 400 every day, 40, cage of reinforcement top net, add the support material such as wood composite pallet, anchor rod pallet board corresponding with it, amount to about 10 tons, these materials are all by manually carrying at present, increase the labour intensity of operating personnel, constrain the drivage efficiency of whole system greatly.Therefore improve Stady On The Auxiliary Transportation Systems mechanization degree, reducing personnel's operation intensity, is also current speedy drivage problem demanding prompt solution.
Summary of the invention
Instant invention overcomes prior art coal road trace integration mechanization speedy drivage process driving do not mate with supporting and cause the problem that actual drivage efficiency is low, the coal road quick supporting method under a kind of unstable surrounding rock condition that can improve coal road trace integration drivage efficiency is provided.
Technical solution of the present invention is, provides the coal road quick supporting method under a kind of unstable surrounding rock condition: comprise the following steps:
Step one, on the mesh sheet carriage of roofboltier and the material platform of anchor driving machine, store support material;
Step 2, anchor driving machine forward continuously coal driving time, first help close plating net to carry out advance support at the top board and two of supporting section, then help to beat anchor pole to the top board of supporting section and two with the jumbolter on anchor driving machine;
Step 3, while step 2, carry out step 3, help out with money with the top board and two of the jumbolter on the roofboltier of anchor driving machine rear end to the supporting section beating anchor pole in step 2 and beat anchor pole;
Step 4, while step 2 and step 3, carry out step 4, help to play anchor cable through the top board and two of the supporting section of complement anchor pole in step 3 with the jumbolter of the anchor cable chassis of roofboltier rear end;
Step 5, when the support material that the mesh sheet carriage of roofboltier and the material platform of anchor driving machine store is finished, support material is delivered to the rear end of the mesh sheet carriage of roofboltier, then be sent on the material platform of anchor driving machine by the mesh sheet carriage of roofboltier;
Step 6, repetition above-mentioned steps two to step 5, until complete the supporting in coal road road.
By flame proof rubber tyre vehicle, support material is delivered to roofboltier afterbody in described step 5, reprint the rear end to roofboltier mesh sheet carriage with the crane on vehicle of flame proof rubber tyre vehicle.
In described step 3, on roofboltier, the layout of jumbolter is mated with each supporting section anchor spacing and adjacent supporting section spacing.
Compared with prior art, coal road quick supporting method under unstable surrounding rock condition of the present invention has the following advantages: 1, supporting operation is decomposed by the present invention, dislocation complement, namely while anchor driving machine completes a P. drechsleri, close plating net is helped at the top board and two of supporting section, jumbolter on it completes top anchor pole in a supporting section, the pre support of side anchor pole, with reduce unsupported back span from, ensure job safety simultaneously, follow-up cut circulation, by roofboltier, anchor cable chassis is helped out with money dozen anchor pole to the top board of supporting section and two and is carried out reinforce support, above three supportings are synchronous in time, spatially delayed enforcement successively, finally complete the supporting of whole section, the method is on existing support process basis, mated by reasonable combination, adjustment sequence of construction, the supporting of section is decomposed into several supporting steps, and each step is connected continuously, overall support efficiency and drivage efficiency are matched, on the basis ensureing construction safety, improve unstable surrounding rock Coal Under lane speedy drivage efficiency,
2, the inventive method support material adopts mechanization to assist the technique of conveying, the support materials such as mesh sheet winch on roofboltier mesh sheet carriage by truck-mounted crane by support material assistant conveyance, be sent on the development machine material platform of front by mesh sheet carriage, the modes such as the transport of optimization support material and storage, the work reducing workman is strong, optimize support process, ensure that the sustainability of whole tunneling process, improve unstable surrounding rock Coal Under lane speedy drivage efficiency;
3, on roofboltier, the layout of jumbolter is mated with supporting section anchor spacing and array pitch, and when making the jumbolter of roofboltier carry out the supporting of anchor pole, support efficiency is higher.
Accompanying drawing explanation
Fig. 1 is supporting section substep supporting schematic diagram;
Fig. 2 is the assistant conveyance schematic diagram of support material.
During accompanying drawing illustrates, label 1 is support material, and 2 is flame proof rubber tyre vehicles, and 3 is roofboltiers, and 4 is crane on vehicles, and 5 is mesh sheet carriages, and 6 is material platforms, and 7 is anchor driving machines.
Below in conjunction with the drawings and specific embodiments, the coal road quick supporting method under unstable surrounding rock condition of the present invention is described further:
Detailed description of the invention
Embodiment one: as shown in Figure 1, Figure 2, in the present embodiment, the coal road quick supporting method under unstable surrounding rock condition, for the excavated section of the wide 5.6m of high 4.3m, comprises the following steps:
Step one, on the mesh sheet carriage 5 of roofboltier 3 and the material platform of anchor driving machine 7, store support material 1;
Step 2, anchor driving machine 7 forward continuously coal driving time, first help close plating net to carry out advance support at the top board and two of supporting section, then make a call to 4 anchor poles, two with the jumbolter on anchor driving machine 7 at the top board of supporting section and help respectively to make a call to 2 anchor poles;
Step 3, while step 2, carry out step 3, help each complement 3 anchor poles with top board complement 2 anchor poles, two to the supporting section beating anchor pole in step 2 of the jumbolter on the roofboltier 3 of anchor driving machine 7 rear end;
Step 4, while step 2 and step 3, carrying out step 4, helping respectively to play 2 anchor cables to playing 3 anchor cables, two through the top board of the supporting section of complement anchor pole in step 3 with the jumbolter of the anchor cable chassis of roofboltier 3 rear end;
Step 5, when the support material 1 that the mesh sheet carriage 5 of roofboltier 3 and the material platform of anchor driving machine 7 store is finished, support material 1 is delivered to the rear end of the mesh sheet carriage 5 of roofboltier 3, then be sent on the material platform of anchor driving machine 7 by the mesh sheet carriage 5 of roofboltier 3;
Step 6, repetition above-mentioned steps two to step 5, until complete the supporting in coal road road.
Embodiment two: as shown in Figure 1, Figure 2, the present embodiment is substantially identical with embodiment one, something in common does not repeat, difference is: by flame proof rubber tyre vehicle 2, support material 1 is delivered to roofboltier 3 afterbody in described step 5, reprints the rear end to roofboltier 3 mesh sheet carriage 5 with the crane on vehicle 4 of flame proof rubber tyre vehicle 2.
Embodiment three: as shown in Figure 1, Figure 2, the present embodiment is substantially identical with embodiment one, something in common does not repeat, and difference is: in described step 3, on roofboltier 3, the layout of jumbolter is mated with each supporting section anchor spacing and adjacent supporting section spacing.
Claims (3)
1. the coal road quick supporting method under unstable surrounding rock condition, is characterized in that: comprise the following steps:
Step one, on the mesh sheet carriage of roofboltier and the material platform of anchor driving machine, store support material;
Step 2, anchor driving machine forward continuously coal driving time, first help close plating net to carry out advance support at the top board and two of supporting section, then help to beat anchor pole to the top board of supporting section and two with the jumbolter on anchor driving machine;
Step 3, while step 2, carry out step 3, help out with money with the top board and two of the jumbolter on the roofboltier of anchor driving machine rear end to the supporting section beating anchor pole in step 2 and beat anchor pole;
Step 4, while step 2 and step 3, carry out step 4, help to play anchor cable through the top board and two of the supporting section of complement anchor pole in step 3 with the jumbolter of the anchor cable chassis of roofboltier rear end;
Step 5, when the support material that the mesh sheet carriage of roofboltier and the material platform of anchor driving machine store is finished, support material is delivered to the rear end of the mesh sheet carriage of roofboltier, then be sent on the material platform of anchor driving machine by the mesh sheet carriage of roofboltier;
Step 6, repetition above-mentioned steps two to step 5, until complete the supporting in coal road road.
2. the coal road quick supporting method under unstable surrounding rock condition according to claim 1, it is characterized in that: in described step 5, by flame proof rubber tyre vehicle, support material is delivered to roofboltier afterbody, reprint the rear end to roofboltier mesh sheet carriage with the crane on vehicle of flame proof rubber tyre vehicle.
3. the coal road quick supporting method under unstable surrounding rock condition according to claim 1, is characterized in that: in described step 3, on roofboltier, the layout of jumbolter is mated with each supporting section anchor spacing and adjacent supporting section spacing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510074298.5A CN104806275A (en) | 2015-02-12 | 2015-02-12 | Coal roadway rapid support method in unstable surrounding rock condition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510074298.5A CN104806275A (en) | 2015-02-12 | 2015-02-12 | Coal roadway rapid support method in unstable surrounding rock condition |
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| CN104806275A true CN104806275A (en) | 2015-07-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510074298.5A Pending CN104806275A (en) | 2015-02-12 | 2015-02-12 | Coal roadway rapid support method in unstable surrounding rock condition |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108035752A (en) * | 2017-12-08 | 2018-05-15 | 中国矿业大学 | Coal road based on roof stability pushes up by force wall supporting anchor rod support method |
| WO2018133492A1 (en) * | 2017-01-23 | 2018-07-26 | 山东科技大学 | Non-uniform support structure for gob-side entry driving under deep unstable overburden rock and construction method |
| WO2018133493A1 (en) * | 2017-01-23 | 2018-07-26 | 山东科技大学 | Unbalanced support design method for gob-side entry driving under deep unstable cover rock |
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2015
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| CN102337903A (en) * | 2011-08-25 | 2012-02-01 | 安徽理工大学 | Method of active coupling support in time and space for control of minimum deformation of surrounding rock of deep well roadway |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018133492A1 (en) * | 2017-01-23 | 2018-07-26 | 山东科技大学 | Non-uniform support structure for gob-side entry driving under deep unstable overburden rock and construction method |
| WO2018133493A1 (en) * | 2017-01-23 | 2018-07-26 | 山东科技大学 | Unbalanced support design method for gob-side entry driving under deep unstable cover rock |
| US10443380B2 (en) | 2017-01-23 | 2019-10-15 | Shandong University Of Science And Technology | Asymmetric support structure of entry driven along gob-side under unstable roof in deep mines and construction method thereof |
| CN108035752A (en) * | 2017-12-08 | 2018-05-15 | 中国矿业大学 | Coal road based on roof stability pushes up by force wall supporting anchor rod support method |
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Application publication date: 20150729 |