CN103485795B - Method for quickly tunneling mine roadway and consecutively timbering mine roadway - Google Patents
Method for quickly tunneling mine roadway and consecutively timbering mine roadway Download PDFInfo
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- CN103485795B CN103485795B CN201310469323.0A CN201310469323A CN103485795B CN 103485795 B CN103485795 B CN 103485795B CN 201310469323 A CN201310469323 A CN 201310469323A CN 103485795 B CN103485795 B CN 103485795B
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- 230000005641 tunneling Effects 0.000 title claims abstract description 10
- 238000010276 construction Methods 0.000 claims abstract description 20
- 239000011435 rock Substances 0.000 claims abstract description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N carbon Chemical compound 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- 239000010959 steel Substances 0.000 claims description 9
- 241001074085 Scophthalmus aquosus Species 0.000 claims description 7
- 241000233633 Phytophthora drechsleri Species 0.000 claims description 6
- 238000007569 slipcasting Methods 0.000 claims description 5
- 238000007664 blowing Methods 0.000 claims description 4
- 125000004122 cyclic group Chemical group 0.000 claims description 4
- 230000003028 elevating Effects 0.000 claims description 4
- 230000003014 reinforcing Effects 0.000 claims description 4
- 238000005553 drilling Methods 0.000 abstract description 5
- 238000005516 engineering process Methods 0.000 abstract description 4
- 238000004873 anchoring Methods 0.000 abstract description 3
- 239000002699 waste material Substances 0.000 abstract 3
- 238000000034 method Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 2
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- 238000005422 blasting Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
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Abstract
The invention relates to a method for quickly tunneling a mine roadway and consecutively timbering the mine roadway. The method can effectively solve the problem that construction speed can not be fundamentally improved due to the fact that tunneling a roadway and timbering the mine roadway are conducted in a staggered mode. According to the technical scheme, the method comprises the following steps: (1) comprehensively tunneling the roadway or digging a roadway through a cannon, digging out waste rocks and drilling an anchor cable; (2) drilling a top anchoring rod; (3) drilling an auxiliary anchoring rod; (4) moving the waste rocks out. When the roadway is tunneled in a comprehensive mode, the step (1) and the step (3) can be conducted at the same time. When the roadway is tunneled through a cannon, digging the waste rocks out, drilling new cannon holes, the step (1), the step (2) and the step (3) can be conducted at the same time. The operation method is simple, improves tunneling speed due to the fact that tunneling and timbering are conducted at the same time, simplifies timbering technology, shortens initial top plate timbering time, improves the stability of top plates, reduces construction strength, effectively improves roadway construction speed, saves cost, and is good in utilization time and innovative in tunneling and timbering method.
Description
Technical field
The present invention relates to coal mining field, the method for particularly a kind of coal mine roadway speedy drivage continuous supporting operation.
Background technology
Driving and supporting are two key links of roadway construction, and safety, fast, economic, tunnelling efficiently and supporting ensure that colliery realizes highly efficient and productive prerequisite, is the decisive factor realizing mine maximum economic benefit.Current coal mine roadway construction technology all adopts " first dig and prop up afterwards ", driving carries out with supporting is staggered, and support material and technique also adopt Bolt-rope Support more, first carry out bolt support, then implement anchor cable reinforcing, support time accounts for more than 70% of roadway construction total time.Raising driving speed (comprehensive pick or big gun pick), simplification support process, increase support material intensity and reduction support density improve speed of application to a certain extent, but in the speed fundamentally improving roadway construction greatly, cannot reduce construction cost.Therefore, device and the technique of developing a kind of coal mine roadway speedy drivage and continuous supporting operation solve tunnel safety, economy, crucial problem that is quick, that efficiently construct, therefore driving is imperative with the improvement and bring new ideas of supporting two links.
Summary of the invention
For above-mentioned situation, for solving the defect of prior art, the object of the present invention is just to provide the method for a kind of coal mine roadway speedy drivage continuous supporting operation, effectively can solve tunnelling and supporting and interlock and carry out and the speed of application the caused problem that cannot at all improve.
The present invention solve technical scheme be, 1) tunnel combine pick or blasting footage, go out cash, bore play anchor cable; 2) anchor pole of pinching is bored; 3) side anchor pole beaten by brill; 4) transport spoil: when tunnel adopts and combines pick, above 1), 3) step can carry out simultaneously; Tunnel adopt big gun pick time, go out after blowing out cash and bore beat new borehole can with above step 1), 2), 3) carry out simultaneously.
Method of operating of the present invention is simple, driving and supporting are carried out simultaneously, improve driving speed, simplify support process, shorten the initial support time of top board, enhance the stability of top board, reduce construction intensity simultaneously, effectively improve the speed of roadway construction, cost-saving, result of use is good, is driving and the innovation in supporting operational method.
Accompanying drawing explanation
Fig. 1 is driving face sectional front view of the present invention.
Fig. 2 is driving face upward view of the present invention.
Fig. 3 is cable bolting element structure generalized section of the present invention.
Fig. 4 is top bolt support element structure schematic diagram of the present invention.
Fig. 5 is top bolt support component upward view of the present invention.
Fig. 6 is side of the present invention bolt support element structure schematic diagram.
Detailed description of the invention
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in further detail.
Provided by Fig. 1-6, the present invention utilizes the device of coal mine roadway speedy drivage continuous supporting operation, then carries out according to the following steps:
1) bore and play anchor cable: with fully-mechanized digging machine 7 or after blowing out tunnelling being gone out cash, top board 9 lapping 2, bores and beats anchor cable 16 immediate support, installs anchor cable pallet 17 and lockset 18, use anchor cable tensiometer to apply high pretightening force, the size of pretightning force is 2/5 ~ 3/5 of anchor cable 16 rupture strength; Boring the position playing anchor cable 16 is that key position stablized by top board 9, adopts five figured cloths put or be arranged in parallel according to the stability of top board 9, and often tunneling 1 ~ 2 row's anchor cable is a cyclic advance, and anchor cable array pitch is 2 ~ 3 row top anchor pole array pitch;
2) anchor pole of pinching is bored: after completing a P. drechsleri, enter next P. drechsleri operation, fully-mechanized digging machine 7 moves forward, tunnel continues to tunnel out cash, until after driving face leaves enough safe spaces 6, in the region of fully-mechanized digging machine 7 rear construction safety, anchor pole 14 reinforcing of pinching is bored to top board 9, W steel panel 11 is installed, top anchor rod pallet board 15, top anchor nut 12 and top anchor pole ball pad 13, and use impact wrench to apply high pretightening force, the size of pretightning force is 1/5 ~ 2/5 of top anchor pole 14 rupture strength, brill pinches anchor pole 14 at fully-mechanized digging machine 7 rear, impact not by fully-mechanized digging machine work can be worked continuously,
3) side anchor pole beaten by brill: in the region of fully-mechanized digging machine 7 rear construction safety, to roadway's sides linked network 2, bore and beat side anchor pole 10, side anchor rod pallet board 21 and side anchor pole ball pad 22 are installed, and applying high pretightening force, the size of pretightning force is 1/5 ~ 2/5 of side anchor pole 10 rupture strength;
4) spoil is transported: the spoil that fully-mechanized digging machine 7 excavates is transported by the elevating conveyor of fully-mechanized digging machine 7 and belt 5; Step 4) can with above step 1), 3) carry out simultaneously; When tunnel adopts big gun pick, blow out rear spoil by mine car or take off rock machine and reprint on belt 5 and transport, and can with above step 1), 2), 3) operation simultaneously.
The device of described coal mine roadway speedy drivage continuous supporting operation comprises cable bolting component 1, net 2, top bolt support component 3, side bolt support component 4, fully-mechanized digging machine 7 and belt 5, cable bolting component 1 is by anchor cable 16, lockset 18 and anchor cable pallet 17 are formed, anchor cable 16 head is equipped with lockset 18, on anchor cable 16, anchor cable pallet 17 is housed below lockset 18, bolt support component 3 in top is by W steel panel 11, top anchor rod pallet board 15 and top anchor pole 14 are formed, top anchor pole 14 head is equipped with W steel panel 11, through top anchor pole 14, top anchor rod pallet board 15 is housed on W steel panel 11, top anchor pole ball pad 13 is lined with at top anchor rod pallet board 15 head through top anchor pole 14, be equipped with above and the top anchor nut 12 pushing up anchor pole 14 external screw thread and be meshed at top anchor pole ball pad 13 through top anchor pole 14, side bolt support component 4 is made up of side anchor pole 10 and side anchor rod pallet board 21, side anchor pole 10 head is equipped with side anchor rod pallet board 21, side anchor pole ball pad 22 is lined with at side anchor rod pallet board 21 head through side anchor pole, be equipped with and the side anchor nut 23 helping anchor pole external screw thread to be meshed above at side anchor pole ball pad 22 through side anchor pole, fully-mechanized digging machine 7 is connected with belt 5 and is placed in tunnel, net 2, cable bolting component 1 and top bolt support component 3 are all arranged on top board 9, side bolt support component 4 is arranged on roadway's sides rib 8.
In order to ensure result of use, described net 2 selects dissimilar net according to the broken situation of top board 9, when top board 9 is more complete select plastic wire, more broken time select wire lath, very broken time select steel mesh reinforcement.
Described anchor cable 16 and anchor cable pallet 17 have the function of slip casting, can carry out timely slip casting (chemical pulp) when top board 9 is broken to top board 9, keep integrality and the stability of top board 9.
A described cyclic advance is 3-4m.
Described anchor cable 16 afterbody is equipped with stop grouting plug 19, anchor cable 16 side through stop grouting plug 19, anchor cable pallet 17 side through hole built with the Grouting Pipe 20 of stretching out.
Described anchor cable pallet 17, top anchor rod pallet board 15 are butterfly with helping anchor rod pallet board 21.
Described anchor cable 16 length is 4.3 ~ 6.3m.
Anchor cable 16 is the short anchor cable that intensity is higher, both the diffusion of high pre-stress in anchorage zone had been conducive to, shorten again the time of anchor cable construction, timely control newly discloses the stability of back, and the rupture strength of requirement and anchor cable that the size of anchor cable pallet 17 and intensity and anchor cable apply pretightning force adapts.
Grouting cable anchor is adopted when back has broken, namely stop grouting plug is increased at former anchor cable afterbody, anchor cable pallet is arranged a through hole, its implementation beats anchor cable hole, aperture reaming, installs stop grouting plug 19, anchor cable pallet 17, lockset 18 respectively, draws Grouting Pipe 20 from the through hole of anchor cable pallet side, apply high pretightening force, and slip casting.
Service condition of the present invention is, (1) after fully-mechanized digging machine 7 excavates tunnel 1 ~ 2 row's cable interval, back lapping 2, anchor cable played by timely brill, and install anchor cable pallet 17 and lockset 18, anchor cable arrangement is determined according to the condition of back rock stratum, before fully-mechanized digging machine 7 carries out next P. drechsleri, use anchorage cable stretching meter to apply high pretightening force, the size of pretightning force is 2/5 ~ 3/5 of anchor cable rupture strength, and for meeting the requirement of the initial anchored force of anchor cable, resin anchoring agent requires that employing is fast used in combination at a slow speed; (2) fully-mechanized digging machine 7 enters next P. drechsleri operation, until after driving face leaves enough safe spaces 6, in the region of the elevating conveyor rear safety of fully-mechanized digging machine 7, anchor pole reinforcing of pinching is bored to back, and use impact wrench to apply high pretightening force; (3) simultaneously to roadway's sides linked network, bore and beat side anchor pole, and apply high pretightening force; (4) spoil that excavates of fully-mechanized digging machine 7 is transported by the elevating conveyor of fully-mechanized digging machine and belt 5.Boring the position playing anchor cable is that back stablizes key position, adopts five figured cloths to put or be arranged in parallel (when namely adopting five figured cloths to put, between two row's anchor cables, increasing by 1 anchor cable) according to the stability of back.
Often tunneling 1 ~ 2 row's anchor cable is a cyclic advance, anchor cable array pitch is 2 ~ 3 row top anchor pole array pitch, bore the impact of anchor pole of pinching at fully-mechanized digging machine 7 rear not by fully-mechanized digging machine work can work continuously, side anchor pole and net 2 are in the construction of anchor pole 14 rear, top, tunnelling goes out cash and also can dig for big gun, but the brill of top anchor pole 14 and side anchor pole is beaten and must be carried out at the rear of safe space 6.When adopting big gun pick construction in tunnel, the construction going out cash and top anchor pole after blowing out can simultaneously operation, also can bore blast hole drilling with anchor cable and work plane to construct simultaneously, the operation of tunnel work plane is made to reach the requirement of sequential production, the present invention adopts anchor cable strongly to control the new top board disclosed in time after tunnelling, shorten the time of top board supporting in early stage, ensure that the stability of top board.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the prerequisite not departing from the technology of the present invention principle; can also make some improvement and replacement, these improve and replace and also should be considered as protection scope of the present invention.
Method of operating of the present invention is simple, driving and supporting are carried out simultaneously, improve driving speed, simplify support process, shorten the initial support time of top board, enhance the stability of top board, reduce construction intensity, effectively improve the speed of roadway construction, cost-saving, result of use is good, is driving and the innovation in supporting operational method, has good economic and social benefit.
Claims (6)
1. a method for coal mine roadway speedy drivage continuous supporting operation, is characterized in that, utilizes the device of coal mine roadway speedy drivage continuous supporting operation, then carries out according to the following steps:
1) bore and play anchor cable: with fully-mechanized digging machine (7) or after blowing out tunnelling being gone out cash, top board (9) lapping (2), bore and beat anchor cable (16) immediate support, anchor cable pallet (17) and lockset (18) are installed, use anchor cable tensiometer to apply high pretightening force, the size of pretightning force is 2/5 ~ 3/5 of anchor cable (16) rupture strength; Boring the position playing anchor cable (16) is that key position stablized by top board (9), five figured cloths are adopted to put or be arranged in parallel according to the stability of top board (9), often tunneling 1 ~ 2 row's anchor cable is a cyclic advance, and anchor cable array pitch is 2 ~ 3 row top anchor pole array pitch;
2) anchor pole of pinching is bored: after completing a P. drechsleri, enter next P. drechsleri operation, fully-mechanized digging machine (7) moves forward, tunnel continues to tunnel out cash, until after driving face leaves enough safe spaces (6), in the region of fully-mechanized digging machine (7) rear construction safety, anchor pole (14) reinforcing of pinching is bored to top board (9), W steel panel (11) is installed, top anchor rod pallet board (15), top anchor nut (12) and top anchor pole ball pad (13), and use impact wrench to apply high pretightening force, the size of pretightning force is 1/5 ~ 2/5 of top anchor pole (14) rupture strength, brill pinches anchor pole (14) at fully-mechanized digging machine (7) rear, impact not by fully-mechanized digging machine work can be worked continuously,
3) side anchor pole beaten by brill: in the region of fully-mechanized digging machine (7) rear construction safety, to roadway's sides linked network (2), bore and beat side anchor pole (10), side anchor rod pallet board (21) and side anchor pole ball pad (22) are installed, and applying high pretightening force, the size of pretightning force is 1/5 ~ 2/5 of side anchor pole (10) rupture strength;
4) spoil is transported: the spoil that fully-mechanized digging machine (7) excavates is transported by the elevating conveyor of fully-mechanized digging machine (7) and belt (5); Step 4) can with above step 1), 3) carry out simultaneously; When tunnel adopts big gun pick, blow out rear spoil by mine car or take off rock machine and reprint on belt (5) and transport, and can with above step 1), 2), 3) operation simultaneously.
2. the method for coal mine roadway speedy drivage continuous supporting according to claim 1 operation, it is characterized in that, the device of described coal mine roadway speedy drivage continuous supporting operation comprises cable bolting component (1), net (2), top bolt support component (3), side bolt support component (4), fully-mechanized digging machine (7) and belt (5), cable bolting component (1) is by anchor cable (16), lockset (18) and anchor cable pallet (17) are formed, anchor cable (16) head is equipped with lockset (18), anchor cable pallet (17) is equipped with in lockset (18) below on anchor cable (16), top bolt support component (3) is by W steel panel (11), top anchor rod pallet board (15) and top anchor pole (14) are formed, top anchor pole (14) head is equipped with W steel panel (11), through top anchor pole (14), top anchor rod pallet board (15) is housed on W steel panel (11), top anchor pole ball pad (13) is lined with at top anchor rod pallet board (15) head through top anchor pole (14), to be equipped with above on top anchor pole ball pad (13) and the top anchor nut (12) pushing up anchor pole (14) external screw thread and be meshed through top anchor pole (14), side bolt support component (4) is made up of side anchor pole (10) and side anchor rod pallet board (21), side anchor pole (10) head is equipped with side anchor rod pallet board (21), side anchor pole ball pad (22) is lined with at side anchor rod pallet board (21) head through side anchor pole, be equipped with and the side anchor nut (23) helping anchor pole external screw thread to be meshed above in side anchor pole ball pad (22) through side anchor pole, fully-mechanized digging machine (7) is connected with belt (5) and is placed in tunnel, net (2), cable bolting component (1) and top bolt support component (3) are all arranged on top board (9), side bolt support component (4) is arranged on roadway's sides rib (8).
3. the method for coal mine roadway speedy drivage continuous supporting according to claim 1 operation, it is characterized in that, described anchor cable (16) and anchor cable pallet (17) have the function of slip casting, when top board (9) is broken, timely slip casting is carried out to top board (9), keeps integrality and the stability of top board (9).
4. the method for coal mine roadway speedy drivage continuous supporting according to claim 2 operation, it is characterized in that, described anchor cable (16) afterbody is equipped with stop grouting plug (19), anchor cable (16) side through stop grouting plug (19), anchor cable pallet (17) side through hole built with the Grouting Pipe of stretching out (20).
5. the method for coal mine roadway speedy drivage continuous supporting according to claim 2 operation, is characterized in that, described anchor cable pallet (17), top anchor rod pallet board (15) are butterfly with side anchor rod pallet board (21).
6. the method for coal mine roadway speedy drivage continuous supporting according to claim 2 operation, is characterized in that, described anchor cable (16) length is 4.3 ~ 6.3m.
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| CN201310469323.0A CN103485795B (en) | 2013-10-10 | 2013-10-10 | Method for quickly tunneling mine roadway and consecutively timbering mine roadway |
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| CN201310469323.0A CN103485795B (en) | 2013-10-10 | 2013-10-10 | Method for quickly tunneling mine roadway and consecutively timbering mine roadway |
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|---|---|---|---|---|
| DE4328863C2 (en) * | 1993-08-27 | 2001-09-27 | Dbt Gmbh | Mining facility for underground mining |
| CN101403302A (en) * | 2007-10-01 | 2009-04-08 | 闫振东 | Pedrail type liftable anchor bar anchor cable construction drill rig and double-lane fast digging technique |
| CN102536229A (en) * | 2012-01-11 | 2012-07-04 | 中国矿业大学(北京) | Tunneling, protecting and anchoring parallel work system and construction technology |
| CN103016019A (en) * | 2012-12-28 | 2013-04-03 | 杨瑞玲 | Heading and anchoring integrated machine |
| CN103195457A (en) * | 2013-04-15 | 2013-07-10 | 辽宁天安矿山科技有限公司 | Supporting method for roadway fully-mechanized drivage operation without withdrawal of roadheader |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4328863C2 (en) * | 1993-08-27 | 2001-09-27 | Dbt Gmbh | Mining facility for underground mining |
| CN101403302A (en) * | 2007-10-01 | 2009-04-08 | 闫振东 | Pedrail type liftable anchor bar anchor cable construction drill rig and double-lane fast digging technique |
| CN102536229A (en) * | 2012-01-11 | 2012-07-04 | 中国矿业大学(北京) | Tunneling, protecting and anchoring parallel work system and construction technology |
| CN103016019A (en) * | 2012-12-28 | 2013-04-03 | 杨瑞玲 | Heading and anchoring integrated machine |
| CN103195457A (en) * | 2013-04-15 | 2013-07-10 | 辽宁天安矿山科技有限公司 | Supporting method for roadway fully-mechanized drivage operation without withdrawal of roadheader |
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