CN108868773A - Open coal mine Drainage rock method - Google Patents
Open coal mine Drainage rock method Download PDFInfo
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- CN108868773A CN108868773A CN201810596939.7A CN201810596939A CN108868773A CN 108868773 A CN108868773 A CN 108868773A CN 201810596939 A CN201810596939 A CN 201810596939A CN 108868773 A CN108868773 A CN 108868773A
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- Prior art keywords
- ramp
- end side
- road
- refuse dump
- bang
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- 239000003245 coal Substances 0.000 title claims abstract description 56
- 238000000034 method Methods 0.000 title claims abstract description 23
- 239000011435 rock Substances 0.000 title claims abstract description 18
- 238000004880 explosion Methods 0.000 claims abstract description 29
- 239000002689 soil Substances 0.000 claims description 17
- 239000004575 stone Substances 0.000 claims description 17
- 239000002360 explosive Substances 0.000 claims description 6
- 238000006073 displacement reaction Methods 0.000 claims description 2
- 238000005266 casting Methods 0.000 abstract description 10
- 238000004140 cleaning Methods 0.000 abstract description 3
- 230000003111 delayed effect Effects 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000005422 blasting Methods 0.000 description 2
- 238000009795 derivation Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C47/00—Machines for obtaining or the removal of materials in open-pit mines
- E21C47/02—Machines for obtaining or the removal of materials in open-pit mines for coal, brown coal, or the like
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Road Paving Structures (AREA)
Abstract
The embodiment of the invention discloses a kind of open coal mine Drainage rock methods comprising：Section is gradually dropped in opposite end side road；Along drop section direction on the road Duan Bang, builds end and help ramp；The overburden of coal face is transported to refuse dump by end side ramp.The ground after coal face's explosion can directly be dumped to refuse dump using real square end side ramp using the embodiment of the present invention, without later dumping, save haul distance, reduce Dumping cost, and the laying time on real square end ramp lower end side of side road can also be delayed, production end helps coal as much as possible in scope of design, reduce the overburden amount of end side, it also can avoid the build of coal face's ramp, discharge the casting space of refuse dump, refuse dump speed of advancement is reduced, the ramp shifting of real square end side is reduced and sets frequency, reduce Dumping cost；Refuse dump is not necessarily to reserved ramp position simultaneously, it is ensured that the side of refuse dump is neat, improves the cleaning of refuse dump.
Description
Technical field
The present invention relates to technical field of coal mine, and in particular to a kind of open coal mine Drainage rock method.
Background technique
Open coal mine is loosened coal face's rock by explosion, and loosening rock is then transported to refuse dump and is dumped.Due to rock
Become loose measure from reality side after stone explosion, can not same level height dump, therefore, refuse dump, which integrally dumps level, need to be higher than coal face
Peels off level.
By taking certain coal mine as an example, the horizontal overburden in coal face 1025 enters refuse dump by 1025 roads Duan Bang and dumps, due to
1025 refuse dump off-capacities, largely the amount of dumping can only drain into 1055 levels.When 1055 levels dump, need from coal face
1025 build and are about 375 meters of ramp to 1055 levels, and with the Forward of refuse dump, need constantly to build new slope
Road, it is short that ramp shifting sets the period, and shifting is set frequently, and Dumping cost is high；Ramp covers the refuse dump amount of dumping simultaneously, leads to refuse dump
Capacity is reduced, and can also be shortened ramp shifting and be set the period.In addition, truck needs later to dump after ramp to refuse dump when casting,
Haul distance is caused at least to increase by 375 meters, casting low efficiency.
Summary of the invention
In view of this, the embodiment of the present invention proposes a kind of open coal mine Drainage rock method, to solve the above technical problems.
The embodiment of the present invention proposes a kind of open coal mine Drainage rock method comprising：Section is gradually dropped in opposite end side road；Along drop
Duan Fangxiang builds end and helps ramp on the road Duan Bang；The overburden of coal face is transported to refuse dump by end side ramp.
Optionally, gradually drop section includes the progress of opposite end side road：Detonating fuse is laid on the road Duan Bang；It is beaten on the detonating fuse
If multiple blast holes；Explosive is installed in the bottom hole of the multiple blast hole；The road Duan Bang gradually drops in ignition charge
Section.
Optionally, building end side ramp includes：By the part stone soil mud after explosion to refuse dump；Utilize the residue after explosion
Stone soil builds end and helps ramp.
Optionally, building end side ramp includes：Stone soil after removing explosion exposes real square end and helps ramp；Utilize the reality
Square end helps ramp to build end and helps ramp.
Optionally, the quantity of the detonating fuse is a plurality of, length direction parallel arrangement of a plurality of detonating fuse along the road Duan Bang, phase
The spacing of the adjacent detonating fuse is equal.
Optionally, the multiple blast hole is uniformly arranged along the detonating fuse.
Optionally, the hole depth of the multiple blast hole is gradually increased along the direction of refuse dump to coal face.
Optionally, the maximum hole depth of the blast hole is equal to the depth displacement of coal face and refuse dump.
Optionally, the inclination angle theta in the real square end side ramp=7-9 °.
Optionally, inclination angle theta=8 °.
Open coal mine Drainage rock method provided in an embodiment of the present invention gradually drops section by opposite end side road, builds real square end and helps slope
Ground after coal face's explosion is directly dumped to refuse dump using real square end side ramp, without later dumping, saves fortune by road
Away from, reduction Dumping cost, and the laying time on real square end ramp lower end side of side road can also be delayed, to the greatest extent may be used in scope of design
Energy ground production end side coal, the overburden amount of reduction end side, the build of also avoidable coal face's ramp, the casting for discharging refuse dump are empty
Between, refuse dump speed of advancement is reduced, the ramp shifting of real square end side is reduced and sets frequency, reduce Dumping cost；Refuse dump is without pre- simultaneously
Stay ramp position, it is ensured that the side of refuse dump is neat, improves the cleaning of refuse dump.
Detailed description of the invention
Fig. 1 is the flow chart of the open coal mine Drainage rock method of the embodiment of the present invention.
Fig. 2 is the position view in the real square end side ramp of the embodiment of the present invention.
Fig. 3 is the flow chart of the S120 of the embodiment of the present invention.
Specific embodiment
Below in conjunction with attached drawing and specific embodiment, technical solution of the present invention is described in detail.It is wherein identical
Components are presented with like reference characters.It should be noted that word "front", "rear" used in the following description, " left side ",
" right side ", "up" and "down" refer to that the direction in attached drawing, word "inner" and "outside" are referred respectively to towards or away from particular elements
The direction of geometric center.
Embodiment one
Fig. 1 shows the flow chart of the open coal mine Drainage rock method of the embodiment of the present invention, and Fig. 2 shows real square ends to help ramp
Position view.As illustrated in fig. 1 and 2, open coal mine Drainage rock method provided in an embodiment of the present invention comprising：
Section is gradually dropped in S110, opposite end side road；
The road Duan Bang 4 and refuse dump 1 are in same level height.The one end on the road Duan Bang 4 connects refuse dump 1, the other end by
After step drop section, it is connect with coal face 2.
Section gradually drops in the road Duan Bang 4, forms the road level-one Duan Bang, the road ... the second level Duan Bang road N Ji Duanbang, wherein N >=2.N grades of ends
Help the height on road consistent with coal face's height.
S120 builds end and helps ramp along drop section direction on the road Duan Bang；
It can build respectively secondary end on the road level-one Duan Bang, the end road ... N grade second level Duan Bang side road and help ramp.Multiple times
Side ramp in grade end forms end and helps ramp.Side ramp 3 in end is directly connected to the road Duan Bang 4 and coal face 2.
The road Duan Bang 4 may be selected and the biggish side of refuse dump spacing, after section drops in the road Duan Bang 4, end side 3 distance of ramp of build
Farther out (such as 300 meters), side ramp 3 in end does not need frequently to move with the movement of refuse dump 1 for refuse dump, can extended end side slope
The service life in road 3, the shifting for reducing end side ramp 3 set frequency, and reduction builds the expense in end side ramp, reduces Dumping cost.
The overburden of S130, coal face are transported to refuse dump by end side ramp.
The overburden of coal face 2 is transported to refuse dump 1 through end side ramp 3, the road Duan Bang 4.Overburden can be coal face's explosion
Loosening rock afterwards.
Now by taking certain open coal mine casting as an example, illustrate the open coal mine casting process of the embodiment of the present invention.
As shown in Fig. 2, the ground after the explosion of 1025 coal faces needs to be transported to 1040 refuse dumps, after the explosion of 1055 coal faces
Ground needs to be transported to 1070 refuse dumps.
Same water is in 1070 roads Duan Bang and 1040 refuse dumps that are in same level height with 1070 refuse dumps respectively
It puts down the 1040 high roads Duan Bang and is gradually dropped section.Such as 1 meter of section is dropped every time, 1069 roads Duan Bang (i.e. one are down on 1070 roads Duan Bang
The road Ji Duanbang), 1069 roads Duan Bang (i.e. the road level-one Duan Bang) is down to 1068 roads Duan Bang (i.e. the road second level Duan Bang), and so on.
The one end on 1040 roads Duan Bang is down to the height of 1025 coal faces, then in the drop section part edge drop Duan Fang on the road Duan Bang
To ramp 3 is helped at build end.The ground of 1055 coal faces is transported to 1070 refuse dumps by end side ramp 3.
The one end on 1070 roads Duan Bang is down to the height of 1055 coal faces, drops section direction on the drop section part edge on the road Duan Bang,
It builds end and helps ramp 3.The ground of 1025 coal faces is transported to 1040 refuse dumps by end side ramp 3.
Open coal mine Drainage rock method provided in an embodiment of the present invention gradually drops section by opposite end side road, builds end and helps ramp,
The ground after coal face's explosion is directly dumped to refuse dump using end side ramp, without later dumping, saves haul distance, the row of reduction
Native cost, and the laying time on end ramp lower end side of side road can also be delayed, production end is helped as much as possible in scope of design
Coal reduces the overburden amount of end side, also can avoid the build of coal face's ramp, discharge the casting space of refuse dump, reduces casting
Field speed of advancement reduces the ramp shifting of end side and sets frequency, reduces Dumping cost；Refuse dump is not necessarily to reserved ramp position simultaneously, can
Guarantee that the side of refuse dump is neat, improves the cleaning of refuse dump.
Embodiment two
On the basis of the above embodiment 1, optionally, as shown in figure 3, the road Duan Bang, gradually drops in S110
Section, specifically include：
S1101 lays detonating fuse on the road Duan Bang；
Detonating fuse can be arranged along the length direction on the road Duan Bang 4, can also be arranged along the width direction on the road Duan Bang 4.
S1102 sets multiple blast holes on the detonating fuse；
Multiple blast holes can uniformly arrange along the detonating fuse, to facilitate the laying of blast hole.In the present embodiment, adjacent
The pitch-row of blast hole is about 6 meters.
Explosive is installed in the bottom hole of the multiple blast hole by S1103；
Explosive is embedded in the bottom hole of each blast hole.
S1104, ignition charge are gradually dropped section to the road Duan Bang.
Opposite end side road 4 carries out standing, the real road Fang Duanbang 4 is become loose measure, to realize drop section.
Section is dropped by explosion, drop section expense can be reduced, and by the way that multiple blast holes are arranged, and explosive is embedded in explosion
Hole bottom hole carries out explosion, and blasting efficiency can be improved, and guarantees explosive effect.
Preferably, side ramp in build end includes：
S1201, by the part stone soil mud after explosion to refuse dump；
Bull-dozer can be used, the part stone soil of explosion is moved to refuse dump, such as the half of the stone soil of explosion is pushed into arrange
Tu Chang.
S1202 builds end using the remaining stone soil after explosion and helps ramp.
For example, building end using the remaining half stone soil of explosion helps ramp.
End is built using the remaining stone soil after explosion and helps ramp, can be reduced soil discharge quantity, be reduced cost.
In one embodiment of the invention, also end directly can be built using loose ground help ramp.
Preferably, side ramp in build end includes：
S1221, the stone soil after removing explosion expose real square end and help ramp；
Hole depth along multiple blast holes of detonating fuse arrangement is gradually deepened, and the bottom hole of multiple blast holes is conllinear, after explosion, is moved
Except the stone soil after explosion, the rock mass of exposing is that real square end helps ramp, and the surface for exposing rock mass is inclined surface.
S1222 builds end using the real square end side ramp and helps ramp.
Whether the slope surface for monitoring real square end side ramp is smooth.
If out-of-flatness, bull-dozer can be used and be bulldozed the slope surface in real square end side ramp, and directly by the stone soil after explosion
It is pushed into refuse dump.
Slope surface such as fruit square end side ramp is relatively flat, can not have to be bulldozed, the stone soil after explosion is only pushed into casting
?.
End is built by using real square end side ramp and helps ramp, can reduce the Shi Tuliang of explosion generation, is improved end and is helped ramp
Efficiency is built, Dumping cost is reduced.
Preferably, the quantity of the detonating fuse is a plurality of, length direction parallel arrangement of a plurality of detonating fuse along the road Duan Bang.Together
The blasting efficiency on the road Duan Bang can be improved in a plurality of detonating fuse of Shi Bushe, reduces time cost.
Further, the spacing of the adjacent detonating fuse is equal, to facilitate the laying of detonating fuse, improves and lays efficiency.?
In the present embodiment, adjacent detonating fuse is spaced about 5 meters.
For example, 1040 roads Duan Bang drop section to 1025 coal faces, the width on 1040 roads Duan Bang is 40 meters.Help slope in end to be built
Road length is 180 meters.The width in end side ramp is equal with the road Duan Bang, is also 40 meters.
8 detonating fuses are set on 1040 roads Duan Bang, and every detonating fuse includes 30 blast holes.
Preferably, the hole depth of the multiple blast hole is gradually increased along the direction of refuse dump to coal face, can be formed directly in
Real square end helps ramp, improves the build efficiency in real square end side ramp.
Further, difference in height of the maximum hole depth of blast hole between refuse dump and coal face can make real square end side slope
Road is directly connected to the road Duan Bang and coal face, and multiple blast holes onepull simultaneously, that is, plastic further improves build efficiency.
For example, the difference in height of 1040 refuse dumps and 1025 coal faces is 15 meters, then the maximum hole depth of blast hole is 15 meters.
Further, the inclination angle theta in the real square end side ramp=7-9 °, to guarantee carrier loader smoothly by ground along real square end
Side ramp is transported to refuse dump, improves casting efficiency.In the present embodiment, inclination angle theta=8 °.
By taking Ha Erwu element open coal mine as an example, calculated according to two end side ramps, annual refuse dump can build about 20 less
Ramp, one about 100,000 yuan of ramp expense of open coal mine build, therefore, 2,000,000 yuan can be saved every year.
In addition, the restriction after the avoidable refuse dump build ramp in end side ramp to space is dumped, ensures refuse dump square position
Active line it is neat, avoid haul distance caused by later dumping increase.
Every end side ramp builds ramp compared to refuse dump and saves about 400 meters of haul distance, builds and counts according to the road Liang Tiaoduanbang
It calculates, the every road Tiao Duanbang year about 10,000,000 m of throughput3, about 2.2 yuan/(m of unit cost3* km), year save the cost=2*
1000*0.4*2.2=1760 ten thousand yuan.
In conclusion ramp is compared in side ramp in end, total annual save the cost is about 19,600,000 yuan.
More than, technical solution of the present invention is described in detail in conjunction with specific embodiments, described specific implementation
Example is used to help understand thought of the invention.The derivation that those skilled in the art make on the basis of the specific embodiment of the invention
It is also belonged within the scope of the present invention with modification.
Claims (10)
1. a kind of open coal mine Drainage rock method, which is characterized in that including：
Section is gradually dropped in opposite end side road；
Along drop section direction on the road Duan Bang, builds end and help ramp；
The overburden of coal face is transported to refuse dump by end side ramp.
2. the method as described in claim 1, which is characterized in that side road in opposite end carries out gradually drop section and includes：
Detonating fuse is laid on the road Duan Bang；
Multiple blast holes are set on the detonating fuse；
Explosive is installed in the bottom hole of the multiple blast hole；
Ignition charge is gradually dropped section to the road Duan Bang.
3. method according to claim 2, which is characterized in that building end side ramp includes：
By the part stone soil mud after explosion to refuse dump；
End, which is built, using the remaining stone soil after explosion helps ramp.
4. method according to claim 2, which is characterized in that building end side ramp includes：
Stone soil after removing explosion exposes real square end and helps ramp；
End, which is built, using the real square end side ramp helps ramp.
5. method as claimed in claim 4, which is characterized in that the quantity of the detonating fuse be it is a plurality of, a plurality of detonating fuse is along end
The length direction parallel arrangement on road is helped, the spacing of the adjacent detonating fuse is equal.
6. method as claimed in claim 5, which is characterized in that the multiple blast hole is uniformly arranged along the detonating fuse.
7. method as claimed in claim 6, which is characterized in that the hole depth of the multiple blast hole is along refuse dump to coal face
Direction is gradually increased.
8. the method for claim 7, which is characterized in that the maximum hole depth of the blast hole is equal to coal face and refuse dump
Depth displacement.
9. method a method as claimed in any one of claims 1-8, which is characterized in that the inclination angle theta in reality square end side ramp=7-9 °.
10. method as claimed in claim 9, which is characterized in that inclination angle theta=8 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810596939.7A CN108868773A (en) | 2018-06-11 | 2018-06-11 | Open coal mine Drainage rock method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810596939.7A CN108868773A (en) | 2018-06-11 | 2018-06-11 | Open coal mine Drainage rock method |
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| Publication Number | Publication Date |
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| CN108868773A true CN108868773A (en) | 2018-11-23 |
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| CN201810596939.7A Pending CN108868773A (en) | 2018-06-11 | 2018-06-11 | Open coal mine Drainage rock method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110206543A (en) * | 2019-06-13 | 2019-09-06 | 中国神华能源股份有限公司 | Open coal mine transportation resources |
| CN113482621A (en) * | 2021-07-01 | 2021-10-08 | 中国神华能源股份有限公司哈尔乌素露天煤矿 | Method for building slope ramp at end slope of strip mine |
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2018
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|---|---|---|---|---|
| DD266828A1 (en) * | 1987-10-13 | 1989-04-12 | Senftenberg Braunkohle | METHOD FOR DIRECTLY HOLLOWING PIT GRANULES IN GEOLOGICAL INTERFERENCE ZONES |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110206543A (en) * | 2019-06-13 | 2019-09-06 | 中国神华能源股份有限公司 | Open coal mine transportation resources |
| CN113482621A (en) * | 2021-07-01 | 2021-10-08 | 中国神华能源股份有限公司哈尔乌素露天煤矿 | Method for building slope ramp at end slope of strip mine |
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